What does "synchronizing" mean and why does it take so ...

Bitcoin Core stuck on "Synchronising with Network"

I wanted to buy bitcoin for the first time because a website I used was offering a discount for bitcoin payments. I read up and found myself an exchange (bittylicious) and a wallet (Bitcoin Core) that I was comfortable with. I think I made a mistake using Bitcoin Core as I'm now reading that its not user friendly but I've only just realised that now.
I went ahead and bought my bitcoins without any issues. But its been half and hour already and I have seen no change in the bitcoin core interface. It still says my balance is 0 so I started looking at the wallet and noticed it says synchronising with network. Is this affecting my transaction? Is there anything I can do about it or do I just have to wait for this to synchronise?
Also if anyone can tell me how long does it normally take? Can anyone recommend a more user friendly wallet? Sorry for all the questions and thanks in advance!
submitted by gabyxo to BitcoinBeginners [link] [comments]

Can you backup a wallet if it is not fully synchronised with the network? /r/Bitcoin

Can you backup a wallet if it is not fully synchronised with the network? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Why i’m bullish on Zilliqa (long read)

Hey all, I've been researching coins since 2017 and have gone through 100s of them in the last 3 years. I got introduced to blockchain via Bitcoin of course, analysed Ethereum thereafter and from that moment I have a keen interest in smart contact platforms. I’m passionate about Ethereum but I find Zilliqa to have a better risk reward ratio. Especially because Zilliqa has found an elegant balance between being secure, decentralised and scalable in my opinion.
 
Below I post my analysis why from all the coins I went through I’m most bullish on Zilliqa (yes I went through Tezos, EOS, NEO, VeChain, Harmony, Algorand, Cardano etc.). Note that this is not investment advice and although it's a thorough analysis there is obviously some bias involved. Looking forward to what you all think!
 
Fun fact: the name Zilliqa is a play on ‘silica’ silicon dioxide which means “Silicon for the high-throughput consensus computer.”
 
This post is divided into (i) Technology, (ii) Business & Partnerships, and (iii) Marketing & Community. I’ve tried to make the technology part readable for a broad audience. If you’ve ever tried understanding the inner workings of Bitcoin and Ethereum you should be able to grasp most parts. Otherwise just skim through and once you are zoning out head to the next part.
 
Technology and some more:
 
Introduction The technology is one of the main reasons why I’m so bullish on Zilliqa. First thing you see on their website is: “Zilliqa is a high-performance, high-security blockchain platform for enterprises and next-generation applications.” These are some bold statements.
 
Before we deep dive into the technology let’s take a step back in time first as they have quite the history. The initial research paper from which Zilliqa originated dates back to August 2016: Elastico: A Secure Sharding Protocol For Open Blockchains where Loi Luu (Kyber Network) is one of the co-authors. Other ideas that led to the development of what Zilliqa has become today are: Bitcoin-NG, collective signing CoSi, ByzCoin and Omniledger.
 
The technical white paper was made public in August 2017 and since then they have achieved everything stated in the white paper and also created their own open source intermediate level smart contract language called Scilla (functional programming language similar to OCaml) too.
 
Mainnet is live since end of January 2019 with daily transaction rate growing continuously. About a week ago mainnet reached 5 million transactions, 500.000+ addresses in total along with 2400 nodes keeping the network decentralised and secure. Circulating supply is nearing 11 billion and currently only mining rewards are left. Maximum supply is 21 billion with annual inflation being 7.13% currently and will only decrease with time.
 
Zilliqa realised early on that the usage of public cryptocurrencies and smart contracts were increasing but decentralised, secure and scalable alternatives were lacking in the crypto space. They proposed to apply sharding onto a public smart contract blockchain where the transaction rate increases almost linear with the increase in amount of nodes. More nodes = higher transaction throughput and increased decentralisation. Sharding comes in many forms and Zilliqa uses network-, transaction- and computational sharding. Network sharding opens up the possibility of using transaction- and computational sharding on top. Zilliqa does not use state sharding for now. We’ll come back to this later.
 
Before we continue disecting how Zilliqa achieves such from a technological standpoint it’s good to keep in mind that a blockchain being decentralised and secure and scalable is still one of the main hurdles in allowing widespread usage of decentralised networks. In my opinion this needs to be solved first before blockchains can get to the point where they can create and add large scale value. So I invite you to read the next section to grasp the underlying fundamentals. Because after all these premises need to be true otherwise there isn’t a fundamental case to be bullish on Zilliqa, right?
 
Down the rabbit hole
 
How have they achieved this? Let’s define the basics first: key players on Zilliqa are the users and the miners. A user is anybody who uses the blockchain to transfer funds or run smart contracts. Miners are the (shard) nodes in the network who run the consensus protocol and get rewarded for their service in Zillings (ZIL). The mining network is divided into several smaller networks called shards, which is also referred to as ‘network sharding’. Miners subsequently are randomly assigned to a shard by another set of miners called DS (Directory Service) nodes. The regular shards process transactions and the outputs of these shards are eventually combined by the DS shard as they reach consensus on the final state. More on how these DS shards reach consensus (via pBFT) will be explained later on.
 
The Zilliqa network produces two types of blocks: DS blocks and Tx blocks. One DS Block consists of 100 Tx Blocks. And as previously mentioned there are two types of nodes concerned with reaching consensus: shard nodes and DS nodes. Becoming a shard node or DS node is being defined by the result of a PoW cycle (Ethash) at the beginning of the DS Block. All candidate mining nodes compete with each other and run the PoW (Proof-of-Work) cycle for 60 seconds and the submissions achieving the highest difficulty will be allowed on the network. And to put it in perspective: the average difficulty for one DS node is ~ 2 Th/s equaling 2.000.000 Mh/s or 55 thousand+ GeForce GTX 1070 / 8 GB GPUs at 35.4 Mh/s. Each DS Block 10 new DS nodes are allowed. And a shard node needs to provide around 8.53 GH/s currently (around 240 GTX 1070s). Dual mining ETH/ETC and ZIL is possible and can be done via mining software such as Phoenix and Claymore. There are pools and if you have large amounts of hashing power (Ethash) available you could mine solo.
 
The PoW cycle of 60 seconds is a peak performance and acts as an entry ticket to the network. The entry ticket is called a sybil resistance mechanism and makes it incredibly hard for adversaries to spawn lots of identities and manipulate the network with these identities. And after every 100 Tx Blocks which corresponds to roughly 1,5 hour this PoW process repeats. In between these 1,5 hour no PoW needs to be done meaning Zilliqa’s energy consumption to keep the network secure is low. For more detailed information on how mining works click here.
Okay, hats off to you. You have made it this far. Before we go any deeper down the rabbit hole we first must understand why Zilliqa goes through all of the above technicalities and understand a bit more what a blockchain on a more fundamental level is. Because the core of Zilliqa’s consensus protocol relies on the usage of pBFT (practical Byzantine Fault Tolerance) we need to know more about state machines and their function. Navigate to Viewblock, a Zilliqa block explorer, and just come back to this article. We will use this site to navigate through a few concepts.
 
We have established that Zilliqa is a public and distributed blockchain. Meaning that everyone with an internet connection can send ZILs, trigger smart contracts etc. and there is no central authority who fully controls the network. Zilliqa and other public and distributed blockchains (like Bitcoin and Ethereum) can also be defined as state machines.
 
Taking the liberty of paraphrasing examples and definitions given by Samuel Brooks’ medium article, he describes the definition of a blockchain (like Zilliqa) as:
“A peer-to-peer, append-only datastore that uses consensus to synchronise cryptographically-secure data”.
 
Next he states that: >“blockchains are fundamentally systems for managing valid state transitions”.* For some more context, I recommend reading the whole medium article to get a better grasp of the definitions and understanding of state machines. Nevertheless, let’s try to simplify and compile it into a single paragraph. Take traffic lights as an example: all its states (red, amber and green) are predefined, all possible outcomes are known and it doesn’t matter if you encounter the traffic light today or tomorrow. It will still behave the same. Managing the states of a traffic light can be done by triggering a sensor on the road or pushing a button resulting in one traffic lights’ state going from green to red (via amber) and another light from red to green.
 
With public blockchains like Zilliqa this isn’t so straightforward and simple. It started with block #1 almost 1,5 years ago and every 45 seconds or so a new block linked to the previous block is being added. Resulting in a chain of blocks with transactions in it that everyone can verify from block #1 to the current #647.000+ block. The state is ever changing and the states it can find itself in are infinite. And while the traffic light might work together in tandem with various other traffic lights, it’s rather insignificant comparing it to a public blockchain. Because Zilliqa consists of 2400 nodes who need to work together to achieve consensus on what the latest valid state is while some of these nodes may have latency or broadcast issues, drop offline or are deliberately trying to attack the network etc.
 
Now go back to the Viewblock page take a look at the amount of transaction, addresses, block and DS height and then hit refresh. Obviously as expected you see new incremented values on one or all parameters. And how did the Zilliqa blockchain manage to transition from a previous valid state to the latest valid state? By using pBFT to reach consensus on the latest valid state.
 
After having obtained the entry ticket, miners execute pBFT to reach consensus on the ever changing state of the blockchain. pBFT requires a series of network communication between nodes, and as such there is no GPU involved (but CPU). Resulting in the total energy consumed to keep the blockchain secure, decentralised and scalable being low.
 
pBFT stands for practical Byzantine Fault Tolerance and is an optimisation on the Byzantine Fault Tolerant algorithm. To quote Blockonomi: “In the context of distributed systems, Byzantine Fault Tolerance is the ability of a distributed computer network to function as desired and correctly reach a sufficient consensus despite malicious components (nodes) of the system failing or propagating incorrect information to other peers.” Zilliqa is such a distributed computer network and depends on the honesty of the nodes (shard and DS) to reach consensus and to continuously update the state with the latest block. If pBFT is a new term for you I can highly recommend the Blockonomi article.
 
The idea of pBFT was introduced in 1999 - one of the authors even won a Turing award for it - and it is well researched and applied in various blockchains and distributed systems nowadays. If you want more advanced information than the Blockonomi link provides click here. And if you’re in between Blockonomi and University of Singapore read the Zilliqa Design Story Part 2 dating from October 2017.
Quoting from the Zilliqa tech whitepaper: “pBFT relies upon a correct leader (which is randomly selected) to begin each phase and proceed when the sufficient majority exists. In case the leader is byzantine it can stall the entire consensus protocol. To address this challenge, pBFT offers a view change protocol to replace the byzantine leader with another one.”
 
pBFT can tolerate ⅓ of the nodes being dishonest (offline counts as Byzantine = dishonest) and the consensus protocol will function without stalling or hiccups. Once there are more than ⅓ of dishonest nodes but no more than ⅔ the network will be stalled and a view change will be triggered to elect a new DS leader. Only when more than ⅔ of the nodes are dishonest (>66%) double spend attacks become possible.
 
If the network stalls no transactions can be processed and one has to wait until a new honest leader has been elected. When the mainnet was just launched and in its early phases, view changes happened regularly. As of today the last stalling of the network - and view change being triggered - was at the end of October 2019.
 
Another benefit of using pBFT for consensus besides low energy is the immediate finality it provides. Once your transaction is included in a block and the block is added to the chain it’s done. Lastly, take a look at this article where three types of finality are being defined: probabilistic, absolute and economic finality. Zilliqa falls under the absolute finality (just like Tendermint for example). Although lengthy already we skipped through some of the inner workings from Zilliqa’s consensus: read the Zilliqa Design Story Part 3 and you will be close to having a complete picture on it. Enough about PoW, sybil resistance mechanism, pBFT etc. Another thing we haven’t looked at yet is the amount of decentralisation.
 
Decentralisation
 
Currently there are four shards, each one of them consisting of 600 nodes. 1 shard with 600 so called DS nodes (Directory Service - they need to achieve a higher difficulty than shard nodes) and 1800 shard nodes of which 250 are shard guards (centralised nodes controlled by the team). The amount of shard guards has been steadily declining from 1200 in January 2019 to 250 as of May 2020. On the Viewblock statistics you can see that many of the nodes are being located in the US but those are only the (CPU parts of the) shard nodes who perform pBFT. There is no data from where the PoW sources are coming. And when the Zilliqa blockchain starts reaching their transaction capacity limit, a network upgrade needs to be executed to lift the current cap of maximum 2400 nodes to allow more nodes and formation of more shards which will allow to network to keep on scaling according to demand.
Besides shard nodes there are also seed nodes. The main role of seed nodes is to serve as direct access points (for end users and clients) to the core Zilliqa network that validates transactions. Seed nodes consolidate transaction requests and forward these to the lookup nodes (another type of nodes) for distribution to the shards in the network. Seed nodes also maintain the entire transaction history and the global state of the blockchain which is needed to provide services such as block explorers. Seed nodes in the Zilliqa network are comparable to Infura on Ethereum.
 
The seed nodes were first only operated by Zilliqa themselves, exchanges and Viewblock. Operators of seed nodes like exchanges had no incentive to open them for the greater public.They were centralised at first. Decentralisation at the seed nodes level has been steadily rolled out since March 2020 ( Zilliqa Improvement Proposal 3 ). Currently the amount of seed nodes is being increased, they are public facing and at the same time PoS is applied to incentivize seed node operators and make it possible for ZIL holders to stake and earn passive yields. Important distinction: seed nodes are not involved with consensus! That is still PoW as entry ticket and pBFT for the actual consensus.
 
5% of the block rewards are being assigned to seed nodes (from the beginning in 2019) and those are being used to pay out ZIL stakers.The 5% block rewards with an annual yield of 10.03% translates to roughly 610 MM ZILs in total that can be staked. Exchanges use the custodial variant of staking and wallets like Moonlet will use the non custodial version (starting in Q3 2020). Staking is being done by sending ZILs to a smart contract created by Zilliqa and audited by Quantstamp.
 
With a high amount of DS & shard nodes and seed nodes becoming more decentralised too, Zilliqa qualifies for the label of decentralised in my opinion.
 
Smart contracts
 
Let me start by saying I’m not a developer and my programming skills are quite limited. So I‘m taking the ELI5 route (maybe 12) but if you are familiar with Javascript, Solidity or specifically OCaml please head straight to Scilla - read the docs to get a good initial grasp of how Zilliqa’s smart contract language Scilla works and if you ask yourself “why another programming language?” check this article. And if you want to play around with some sample contracts in an IDE click here. Faucet can be found here. And more information on architecture, dapp development and API can be found on the Developer Portal.
If you are more into listening and watching: check this recent webinar explaining Zilliqa and Scilla. Link is time stamped so you’ll start right away with a platform introduction, R&D roadmap 2020 and afterwards a proper Scilla introduction.
 
Generalised: programming languages can be divided into being ‘object oriented’ or ‘functional’. Here is an ELI5 given by software development academy: > “all programmes have two basic components, data – what the programme knows – and behaviour – what the programme can do with that data. So object-oriented programming states that combining data and related behaviours in one place, is called “object”, which makes it easier to understand how a particular program works. On the other hand, functional programming argues that data and behaviour are different things and should be separated to ensure their clarity.”
 
Scilla is on the functional side and shares similarities with OCaml: > OCaml is a general purpose programming language with an emphasis on expressiveness and safety. It has an advanced type system that helps catch your mistakes without getting in your way. It's used in environments where a single mistake can cost millions and speed matters, is supported by an active community, and has a rich set of libraries and development tools. For all its power, OCaml is also pretty simple, which is one reason it's often used as a teaching language.
 
Scilla is blockchain agnostic, can be implemented onto other blockchains as well, is recognised by academics and won a so called Distinguished Artifact Award award at the end of last year.
 
One of the reasons why the Zilliqa team decided to create their own programming language focused on preventing smart contract vulnerabilities safety is that adding logic on a blockchain, programming, means that you cannot afford to make mistakes. Otherwise it could cost you. It’s all great and fun blockchains being immutable but updating your code because you found a bug isn’t the same as with a regular web application for example. And with smart contracts it inherently involves cryptocurrencies in some form thus value.
 
Another difference with programming languages on a blockchain is gas. Every transaction you do on a smart contract platform like Zilliqa for Ethereum costs gas. With gas you basically pay for computational costs. Sending a ZIL from address A to address B costs 0.001 ZIL currently. Smart contracts are more complex, often involve various functions and require more gas (if gas is a new concept click here ).
 
So with Scilla, similar to Solidity, you need to make sure that “every function in your smart contract will run as expected without hitting gas limits. An improper resource analysis may lead to situations where funds may get stuck simply because a part of the smart contract code cannot be executed due to gas limits. Such constraints are not present in traditional software systems”. Scilla design story part 1
 
Some examples of smart contract issues you’d want to avoid are: leaking funds, ‘unexpected changes to critical state variables’ (example: someone other than you setting his or her address as the owner of the smart contract after creation) or simply killing a contract.
 
Scilla also allows for formal verification. Wikipedia to the rescue:
In the context of hardware and software systems, formal verification is the act of proving or disproving the correctness of intended algorithms underlying a system with respect to a certain formal specification or property, using formal methods of mathematics.
 
Formal verification can be helpful in proving the correctness of systems such as: cryptographic protocols, combinational circuits, digital circuits with internal memory, and software expressed as source code.
 
Scilla is being developed hand-in-hand with formalization of its semantics and its embedding into the Coq proof assistant — a state-of-the art tool for mechanized proofs about properties of programs.”
 
Simply put, with Scilla and accompanying tooling developers can be mathematically sure and proof that the smart contract they’ve written does what he or she intends it to do.
 
Smart contract on a sharded environment and state sharding
 
There is one more topic I’d like to touch on: smart contract execution in a sharded environment (and what is the effect of state sharding). This is a complex topic. I’m not able to explain it any easier than what is posted here. But I will try to compress the post into something easy to digest.
 
Earlier on we have established that Zilliqa can process transactions in parallel due to network sharding. This is where the linear scalability comes from. We can define simple transactions: a transaction from address A to B (Category 1), a transaction where a user interacts with one smart contract (Category 2) and the most complex ones where triggering a transaction results in multiple smart contracts being involved (Category 3). The shards are able to process transactions on their own without interference of the other shards. With Category 1 transactions that is doable, with Category 2 transactions sometimes if that address is in the same shard as the smart contract but with Category 3 you definitely need communication between the shards. Solving that requires to make a set of communication rules the protocol needs to follow in order to process all transactions in a generalised fashion.
 
And this is where the downsides of state sharding comes in currently. All shards in Zilliqa have access to the complete state. Yes the state size (0.1 GB at the moment) grows and all of the nodes need to store it but it also means that they don’t need to shop around for information available on other shards. Requiring more communication and adding more complexity. Computer science knowledge and/or developer knowledge required links if you want to dig further: Scilla - language grammar Scilla - Foundations for Verifiable Decentralised Computations on a Blockchain Gas Accounting NUS x Zilliqa: Smart contract language workshop
 
Easier to follow links on programming Scilla https://learnscilla.com/home Ivan on Tech
 
Roadmap / Zilliqa 2.0
 
There is no strict defined roadmap but here are topics being worked on. And via the Zilliqa website there is also more information on the projects they are working on.
 
Business & Partnerships  
It’s not only technology in which Zilliqa seems to be excelling as their ecosystem has been expanding and starting to grow rapidly. The project is on a mission to provide OpenFinance (OpFi) to the world and Singapore is the right place to be due to its progressive regulations and futuristic thinking. Singapore has taken a proactive approach towards cryptocurrencies by introducing the Payment Services Act 2019 (PS Act). Among other things, the PS Act will regulate intermediaries dealing with certain cryptocurrencies, with a particular focus on consumer protection and anti-money laundering. It will also provide a stable regulatory licensing and operating framework for cryptocurrency entities, effectively covering all crypto businesses and exchanges based in Singapore. According to PWC 82% of the surveyed executives in Singapore reported blockchain initiatives underway and 13% of them have already brought the initiatives live to the market. There is also an increasing list of organisations that are starting to provide digital payment services. Moreover, Singaporean blockchain developers Building Cities Beyond has recently created an innovation $15 million grant to encourage development on its ecosystem. This all suggest that Singapore tries to position itself as (one of) the leading blockchain hubs in the world.
 
Zilliqa seems to already taking advantage of this and recently helped launch Hg Exchange on their platform, together with financial institutions PhillipCapital, PrimePartners and Fundnel. Hg Exchange, which is now approved by the Monetary Authority of Singapore (MAS), uses smart contracts to represent digital assets. Through Hg Exchange financial institutions worldwide can use Zilliqa's safe-by-design smart contracts to enable the trading of private equities. For example, think of companies such as Grab, AirBnB, SpaceX that are not available for public trading right now. Hg Exchange will allow investors to buy shares of private companies & unicorns and capture their value before an IPO. Anquan, the main company behind Zilliqa, has also recently announced that they became a partner and shareholder in TEN31 Bank, which is a fully regulated bank allowing for tokenization of assets and is aiming to bridge the gap between conventional banking and the blockchain world. If STOs, the tokenization of assets, and equity trading will continue to increase, then Zilliqa’s public blockchain would be the ideal candidate due to its strategic positioning, partnerships, regulatory compliance and the technology that is being built on top of it.
 
What is also very encouraging is their focus on banking the un(der)banked. They are launching a stablecoin basket starting with XSGD. As many of you know, stablecoins are currently mostly used for trading. However, Zilliqa is actively trying to broaden the use case of stablecoins. I recommend everybody to read this text that Amrit Kumar wrote (one of the co-founders). These stablecoins will be integrated in the traditional markets and bridge the gap between the crypto world and the traditional world. This could potentially revolutionize and legitimise the crypto space if retailers and companies will for example start to use stablecoins for payments or remittances, instead of it solely being used for trading.
 
Zilliqa also released their DeFi strategic roadmap (dating November 2019) which seems to be aligning well with their OpFi strategy. A non-custodial DEX is coming to Zilliqa made by Switcheo which allows cross-chain trading (atomic swaps) between ETH, EOS and ZIL based tokens. They also signed a Memorandum of Understanding for a (soon to be announced) USD stablecoin. And as Zilliqa is all about regulations and being compliant, I’m speculating on it to be a regulated USD stablecoin. Furthermore, XSGD is already created and visible on block explorer and XIDR (Indonesian Stablecoin) is also coming soon via StraitsX. Here also an overview of the Tech Stack for Financial Applications from September 2019. Further quoting Amrit Kumar on this:
 
There are two basic building blocks in DeFi/OpFi though: 1) stablecoins as you need a non-volatile currency to get access to this market and 2) a dex to be able to trade all these financial assets. The rest are build on top of these blocks.
 
So far, together with our partners and community, we have worked on developing these building blocks with XSGD as a stablecoin. We are working on bringing a USD-backed stablecoin as well. We will soon have a decentralised exchange developed by Switcheo. And with HGX going live, we are also venturing into the tokenization space. More to come in the future.”*
 
Additionally, they also have this ZILHive initiative that injects capital into projects. There have been already 6 waves of various teams working on infrastructure, innovation and research, and they are not from ASEAN or Singapore only but global: see Grantees breakdown by country. Over 60 project teams from over 20 countries have contributed to Zilliqa's ecosystem. This includes individuals and teams developing wallets, explorers, developer toolkits, smart contract testing frameworks, dapps, etc. As some of you may know, Unstoppable Domains (UD) blew up when they launched on Zilliqa. UD aims to replace cryptocurrency addresses with a human readable name and allows for uncensorable websites. Zilliqa will probably be the only one able to handle all these transactions onchain due to ability to scale and its resulting low fees which is why the UD team launched this on Zilliqa in the first place. Furthermore, Zilliqa also has a strong emphasis on security, compliance, and privacy, which is why they partnered with companies like Elliptic, ChainSecurity (part of PwC Switzerland), and Incognito. Their sister company Aqilliz (Zilliqa spelled backwards) focuses on revolutionizing the digital advertising space and is doing interesting things like using Zilliqa to track outdoor digital ads with companies like Foodpanda.
 
Zilliqa is listed on nearly all major exchanges, having several different fiat-gateways and recently have been added to Binance’s margin trading and futures trading with really good volume. They also have a very impressive team with good credentials and experience. They dont just have “tech people”. They have a mix of tech people, business people, marketeers, scientists, and more. Naturally, it's good to have a mix of people with different skill sets if you work in the crypto space.
 
Marketing & Community
 
Zilliqa has a very strong community. If you just follow their Twitter their engagement is much higher for a coin that has approximately 80k followers. They also have been ‘coin of the day’ by LunarCrush many times. LunarCrush tracks real-time cryptocurrency value and social data. According to their data it seems Zilliqa has a more fundamental and deeper understanding of marketing and community engagement than almost all other coins. While almost all coins have been a bit frozen in the last months, Zilliqa seems to be on its own bull run. It was somewhere in the 100s a few months ago and is currently ranked #46 on CoinGecko. Their official Telegram also has over 20k people and is very active, and their community channel which is over 7k now is more active and larger than many other official channels. Their local communities) also seem to be growing.
 
Moreover, their community started ‘Zillacracy’ together with the Zilliqa core team ( see www.zillacracy.com ). It’s a community run initiative where people from all over the world are now helping with marketing and development on Zilliqa. Since its launch in February 2020 they have been doing a lot and will also run their own non custodial seed node for staking. This seed node will also allow them to start generating revenue for them to become a self sustaining entity that could potentially scale up to become a decentralized company working in parallel with the Zilliqa core team. Comparing it to all the other smart contract platforms (e.g. Cardano, EOS, Tezos etc.) they don't seem to have started a similar initiatives (correct me if I’m wrong though). This suggest in my opinion that these other smart contract platforms do not fully understand how to utilize the ‘power of the community’. This is something you cannot ‘buy with money’ and gives many projects in the space a disadvantage.
 
Zilliqa also released two social products called SocialPay and Zeeves. SocialPay allows users to earn ZILs while tweeting with a specific hashtag. They have recently used it in partnership with the Singapore Red Cross for a marketing campaign after their initial pilot program. It seems like a very valuable social product with a good use case. I can see a lot of traditional companies entering the space through this product, which they seem to suggest will happen. Tokenizing hashtags with smart contracts to get network effect is a very smart and innovative idea.
 
Regarding Zeeves, this is a tipping bot for Telegram. They already have 1000s of signups and they plan to keep upgrading it for more and more people to use it (e.g. they recently have added a quiz features). They also use it during AMAs to reward people in real time. It’s a very smart approach to grow their communities and get familiar with ZIL. I can see this becoming very big on Telegram. This tool suggests, again, that the Zilliqa team has a deeper understanding what the crypto space and community needs and is good at finding the right innovative tools to grow and scale.
 
To be honest, I haven’t covered everything (i’m also reaching the character limited haha). So many updates happening lately that it's hard to keep up, such as the International Monetary Fund mentioning Zilliqa in their report, custodial and non-custodial Staking, Binance Margin, Futures & Widget, entering the Indian market, and more. The Head of Marketing Colin Miles has also released this as an overview of what is coming next. And last but not least, Vitalik Buterin has been mentioning Zilliqa lately acknowledging Zilliqa and mentioning that both projects have a lot of room to grow. There is much more info of course and a good part of it has been served to you on a silver platter. I invite you to continue researching by yourself :-) And if you have any comments or questions please post here!
submitted by haveyouheardaboutit to CryptoCurrency [link] [comments]

imgvue, Vue Live and the Kin Crypto Challenge

imgvue, Vue Live and the Kin Crypto Challenge

Vue Live
Hey all,
I'm developing an imgvue spin-off called Vue Live as part of the Kin Crypto Challenge.
It's essentially a live video streaming app with Kin!
The vision for Vue Live is very similar to imgvue: enabling creators to get rewarded for their creativity and passion.
Here’s how it works, in three simple steps:
  1. Create a live stream
  2. Share your unique Vue.Live link with your fans and followers
  3. Go Live and start earning KIN tips from your viewers!
Demo of Vue Live v1.0:
https://www.youtube.com/watch?v=bTyfXfkhHS0
This initial version of the app is very basic as the challenge was to get scalable live-streaming to work with thousands of simultaneous users, but it already includes full Kin functionality such as: Tipping, Backup/Restore, Ecosystem Discovery and Send/Withdraw.
Planned features
  • Real-time synchronised chat
  • Premium streams
  • In-app purchases of Kin in certain regions
Something that I'd like to include but unfortunately don't have the resources for at the moment:
Public discovery of live-streams
This is a bit of a challenge as Google/Apple have very strict rules regarding live-streaming apps:
problematic User Generated Content must be removed in as close to real-time as possible;
How do we solve the problem of 24/7 real-time moderation? I think there are three ways we could go about it:
  1. Hire more staff (e.g. to do shifts in different time-zones)
  2. Use Artificial Intelligence (e.g. https://cloud.google.com/video-intelligence/docs/streaming/live-streaming-overview)
  3. Community moderation with incentives (e.g. earn Kin when flagged content gets unlisted by A.I. and/or staff)
But further development of all of this is going to require a lot more funding than I currently have in the company.
imgvue and Vue Live
Both of these projects will be developed in parallel and share some of the same underlying infrastructure such as servers and databases.
But by separating them out, I will be able to experiment with different app concepts and business models.
imgvue will ultimately become crypto-agnostic, meaning it will support multiple blockchains starting with Stellar Lumens (XLM).
For imgvue, this means that in the future you will be able to tip, earn, buy and sell assets issued on the Stellar network such as Bitcoin and Ethereum.
Vue Live is going to be all-in on Kin, but for this I need community support to take this to the next level.
Development and Marketing Budget
If Vue Live wins a substantial prize in the Kin Crypto Challenge, I would use these funds to:
  • further develop Vue Live features, e.g. in-app purchases of Kin (pending legal clearance)
  • hold an exclusive live-streaming event with a social media figure, potentially reaching thousands of new users and get them to learn about the Kin Ecosystem in the process
  • pay for infrastructure costs (currently estimated to be at least $0.18/min per stream, not counting viewers)
Vote in the Kin Crypto Challenge
If you want to support the devs working on building creative and addictive peer-to-peer Kin experiences, please remember to vote in the Kin Crypto Challenge here:
https://kinchallenge.devpost.com
If you'd like to vote for Vue Live, you can find the submission here:
https://devpost.com/software/vue-live
Public voting opens tomorrow, October 17 at 9:00am EDT and ends October 25 at 5:00pm EDT.
Ultimately, the submissions will be evaluated by a panel of judges and I hope to get their support as well.
I'm always available for any questions anyone may have, just comment on here, send me a message privately or email me: admin [at] imgvue.com
Many thanks,
Melvin
submitted by canadaarm2 to KinFoundation [link] [comments]

Best VPN Reddit 2019

Best VPN Reddit 2019

Invite to the Reddit 2019 Directory of VPN service providers. In this directory site, we're taking a look at a few of the absolute best business VPN provider on the Internet like ExpressVPN, CyberGhost, IPVanish, Hotspot Shield, Private Internet Access and others. Instead of taking a look at the large range of free suppliers, which often have a lot of limits (and dubious loyalties), we are looking at those suppliers who charge a couple of dollars a month, however put your interests first, instead of those of shadowy marketers and sponsors. We've looked at more than 20 elements including variety of server locations, client software, devoted and vibrant IP, bandwidth caps, security, logging, client support and rate.
Let's take a look at each of our suppliers below in a little bit more depth.
ExpressVPN
Number of IP addresses: 30,000
Number of servers: 3,000+.
Number of server locations: 160.
Variety of synchronised connections: 5.
Country/Jurisdiction: British Virgin Islands.
94+ countries.
3 months Free with 1-year strategy.
ExpressVPN likewise uses a 30-day money-back guarantee, and has outstanding procedure assistance. While few will utilize PPTP (unless there specify requirements), the extra support of SSTP and L2TP/IPSec might be welcome to some users.
We like the quality of their setup guides, and the in-depth details in their Frequently Asked Question. The ExpressVPN got points from us for their support of Bitcoin as a payment technique, and their trustworthy and easy-to-use connection kill switch feature.
The company has actually stayed in business because 2009, and has a significant network of fast VPN servers spread throughout 94 nations. Their finest plan is priced at simply $6.67 monthly for an annual plan that includes 3 months complimentary. ExpressVPN's dedication to privacy is a standout feature.
SEE ALL EXPRESSVPN PLANS.
NordVPN.
Number of IP addresses: 5,000.
Variety of servers: 5000+ servers.
Variety of server locations: 61.
Country/Jurisdiction: Panama.
60+ nations.
$ 2.99/ month (75% discount rate) for a 3-year plan.
NordVPN in-depth review and hands-on screening.
NordVPN is among our top-performing VPN companies. They even use a generous simultaneous connection count, with six synchronised connections through their network, where almost everyone else deals five or less.
NordVPN's network isn't as big as some of their competitors, so if you're attempting to obfuscate your tracks, you might want a company with more servers. Otherwise, this business is plainly offering a winning offering.
Their finest plan is 1-year membership strategy: $6.99 ($ 83.88). While their month-to-month price of $11.95 is at the high-end of the spectrum, their annual price of $83.88 is lower than a lot of our competitors. And yes, they also have a full 30-day refund policy. NordVPN likewise provides a dedicated IP choice, for those looking for a different level of VPN connection. They do provide $2.99/ month (75% discount rate) for a 3-year strategy.
SEE ALL NORDVPN PREPARES. cg-22-1.
CyberGhost VPN.
Number of IP addresses: 2,800.
Number of servers: over 3,700 worldwide.
Variety of server locations: 115.
24/7 support action.
$ 2.75/ month (79% discount) for a 3-year plan.
CyberGhost thorough evaluation and hands-on screening.
CyberGhost has actually been around because 2011 and has come out strongly as an advocate of "civil rights, a complimentary society, and an uncensored Internet culture." We truly liked how the company specifically showcases, on their Website, how folks usually prevented from accessing such essential services as Facebook and YouTube can bring those services into their lives by means of a VPN.
The company has strong Linux assistance, supports VPN through routers, and has a solution for the popular Kodi media player. They mark off all the boxes on procedure support and get congratulations for offering a connection kill switch function, in addition to supporting P2P and BitTorrent in most nations.
Still, the few extra dollars deserve it. We liked how the business offers custom-made app security, IPV5 support and DNS, IP, and WebRTC leakage prevention. CyberGhost also picked up points for preserving privacy by not logging connection information.
SEE ALL CYBERGHOST VPN PREPARES.
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IPVanish VPN.
Variety of IP addresses: 40,000+.
Variety of servers: 900.
Number of server locations: 60.
Country/Jurisdiction: United States.
$ 4.87/ month (60% discount) for a 1-year strategy.
A big win for IPVanish is the reality that the business keeps no logs. Absolutely no. We also like the business's stance towards privacy. They even supply support to EFF, the Electronic Frontier Foundation, a not-for-profit at the front lines of securing online personal privacy.
An unique feature of IPVanish, and one we're extremely interested by, is the VPN's assistance of Kodi, the open-source media streaming app that was as soon as referred to as XBMC. Any severe media fan has used or constructed Kodi or XBMC into a media player, and the integrated IPVanish Kodi plugin provides access to media worldwide.
At $7.50/ month and $58.49 for a year, they're undoubtedly attempting to move you towards their annual program. We awarded the business congratulations for Bitcoin support, and their money-back guarantee. We're a little disappointed that they just allow a 7-day trial, instead of a full 30-days. The company is generous, with five simultaneous connections. We also liked their connection eliminate switch feature, a must for anyone serious about staying confidential while browsing.
SEE ALL IPVANISH VPN PREPARES.
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PureVPN.
Variety of IP addresses: 300,000.
Variety of servers: 2000.
Variety of server locations: 180.
Country/Jurisdiction: Hong Kong.
$ 3.33/ month (70% discount rate) for a 1-year plan.
PureVPN does not log connection details. We like that they provide a 30-day refund policy. They got perk points because, essential for a few of our readers, PureVPN supports bitcoin payments and you're going like their fast performance.
Also, you can grow with them. If after a long time, you require to scale up to business-level plans, the business has offerings for development. Prices is middle-of-the-road, at $10.95 each month and $35,88 annually.
Finally, we like that PureVPN has both Kodi and a Chromebook solution called out right on their Web page. In addition, PureVPN earns the distinction of being the very first VPN service we've seen to totally implement the GDPR.
SEE ALL PUREVPN PLANS.
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StrongVPN.
Variety of IP addresses: 59,500.
Variety of servers: 689.
Variety of server places: 70.
$ 5.83/ month (42% discount rate) for a 1-year strategy.
StrongVPN blasts onto our favorites list with outstanding facilities and good price efficiency. As with our other favorites, StrongVPN has a strong no-logging policy. Since VPN is all about securing your personal privacy, that's a place the savvy VPN service providers can get points.
Strong likewise picks up congratulations for its large base of IP addresses, which also helps protect your anonymity. They have a strong collection of servers and around the world locations. For those of you who need a devoted IP, you can get one from the company, however you'll require to contact support to get assist setting it up.
Among StrongVPN's greatest strengths is the company's network. They own and operate their entire network infrastructure, which implies they have no externally-dictated limitations on bandwidth or the type of traffic enabled on the network. This gives you the self-confidence that you'll have the ability to power through your work.
StrongVPN's monthly price of $10 is in the middle of the pack, however their yearly cost of $69.99 is amongst the most affordable of our contenders.
SEE ALL STRONGVPN PLANS.
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Norton Secure VPN.
Number of countries: 29.
Variety of servers: 1500.
Variety of server areas: 200.
Country/Jurisdiction: US.
$ 39.99 for the first 12 months.
Symantec, long understood for quality in security items, has a fairly minimal offering in its VPN item. It does not support P2P or BitTorrent, it does not have a kill switch feature, and it does not support Linux, routers or set leading boxes.
On the other hand, it's a VPN product from Symantec, a publicly-traded business with a clearly recorded management team. In many software application classifications, this might not be a notable advantage, but in the VPN world, where most companies have shadowy management and impossible-to-track-down ownership structures, it's revitalizing to understand exactly who we're handling and understand through independent sources (the company's annual filing, the SEC, and analyst reports) that the company is reliable and liable.
SEE ALL NORTON SECURE VPN PLANS.
hotspot.
Hotspot Guard.
Variety of IP addresses: 50,000.
Number of servers: 2500.
Number of server places: 26.
$ 2.99/ month (77% discount rate) for a 3-year strategy.
HotSpot Shield is an item that has actually had some ups and downs in regards to our editorial protection. Back in 2016, they picked up some really favorable protection based upon founder David Gorodyansky remarks about protecting user personal privacy. Then, in 2017, a personal privacy group implicated the company of spying on user traffic, an accusation the company flatly denies. Lastly, just this year, ZDNet uncovered a flaw in the company's software that exposed users. Thankfully, that was repaired right away.
So what are we to make from HotSpot Guard? Frankly, the debate caused us to drop them from our directory for a while. However they approached us, made a strong case for their ongoing dedication to privacy, and we chose to give them another chance.
Here's the good news. They use one of the very best money-back warranty we have actually seen for VPN services, a complete 45-days. They support Windows, Mac, iOS, and Android, along with plugins for Chrome and Firefox. They also support routers and media players (but not Linux). And, as a reward, they have a connection kill switch feature.
The business does not support P2P or BitTorrent-- and they also don't support the OpenVPN. Every other supplier does, but HotSpot Shield limits its protocol assistance to L2TP/IPSec and something they call Hydra, an enhancement of the transport protocol.
Overall, the company did impress us with their attention to personal privacy. They have actually a released personal privacy canary. They likewise informed us, "We have actually integrated in malware, phishing and spam security. Our dedication to our users is that Hotspot Guard will never ever keep, log, or share your real IP address.".
SEE ALL HOTSPOT GUARD PLANS.
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Conceal My Ass.
Number of IP addresses: 3,106.
Number of servers: 830.
Variety of server locations: 280.
Country/Jurisdiction: UK.
$ 2.99/ month for 3-year strategy.
We have to provide these folks an extra shout-out just for the name of their service. The company has a strong network with an excellent selection of protocols supported. While they have a comprehensive (and really plainly written set of policy documents), the company clearly permits P2P and gushes.
We like how HMA provides assistance on a wide variety of devices consisting of video game consoles. We gave them kudos for bitcoin support, and their outstanding money-back guarantee. They did make us frown a bit since they do log connection data. They also use five synchronised connections.
While their monthly pricing of $11.52 is at the high end of the spectrum, their yearly rates is competitive at $78.66 for a full year.
SEE ALL CONCEAL MY ASS PLANS.
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VyprVPN Solutions.
Variety of IP addresses: 200,000+.
Variety of servers: 700+.
Variety of server locations: 70+.
Country/Jurisdiction: Switzerland.
30-Day Cash Back Guarantee.
$ 2.99/ month for 3-year strategy.
VyprVPN has the largest bank of IP addresses of any of the services we have actually taken a look at. The business provides a wide range of procedures, including its own high-performance Chameleon connection procedure.
We like that the company provides a connection kill switch feature and, for those who require it, there's a choice to get a dedicated IP address. VyprVPN is a standout in their effort to offer privacy, and ward off censorship. When China began its program of deep package VPN assessment, Golden Frog's VyperVPN service added scrambled OpenVPN packets to keep the traffic streaming.
At $9.95 for a month's service, and $80.04 for a year, the service is a good deal.
SEE ALL VYPRVPN PREPARES.
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Personal Web Access.
Variety of IP addresses: N/A.
Variety of servers: 3,252.
Number of server places: 37.
Country/Jurisdiction: United States.
Mentioning rate, if you desire a strong VPN service provider and you want the lowest yearly rate anywhere, Private Web Access is the location to go. At $6.95 a month, their regular monthly charge is the second least expensive of our choices, however at $39.95 per year, Private Internet Access beats even the second most affordable annual price by a complete Jackson (a $20 expense).
The company does not launch details on the variety of IP addresses offered, but at 3,252, their server count is more than any of our other choices.
These folks have been around given that 2010, and do not log anything. They supply a generous five connections, a connection kill switch feature, and some excellent online documentation and security assistance. Our one dissatisfaction is that their refund policy is 7-days rather of 30, however you can definitely get a feel for their exceptional efficiency in the area of a week.
SEE ALL PERSONAL INTERNET ACCESS PREPARES.
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TorGuard.
Variety of IP addresses: N/A.
Number of servers: 1,600.
Variety of server places: 50.
Country/Jurisdiction: United States.
Despite the fact that the business doesn't launch the number of IP addresses it supports, TorGuard didn't disappoint. In addition to standard VPN services, TorGuard uses a wide array of additional services, depending upon your personal privacy requires.
Just like our other favorites, TorGuard keeps no logs whatsoever. They have a full suite of protocol support, so no matter how you want to connect, you can have your choice. We likewise like the active blog site the company keeps. It's relevant and intriguing to anybody with Web security concerns.
While TorGuard only offers a 7-day return policy, it's enough time for you to be able to decide if you're pleased. The monthly rate of $9.99 is practically at the middle of the range, but the yearly fee of $59.99 is a deal compared to practically all our other competitors.
SEE ALL TORGUARD PLANS.
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Buffered VPN.
Variety of IP addresses: 11,000.
Number of servers: 800.
Variety of server locations: 46.
Country/Jurisdiction: Gibraltar.
Buffered VPN doesn't disclose much about the size of its network, however the 30-day refund ensure suggests that you can take their service for a test drive and really get a feel for how well it carries out for you. The business distressed us due to the fact that they do keep some connection information. They cheered us up, though, due to their client support, limitless bandwidth, and generous number of simultaneous sessions permitted.
The company is reasonably new, established in 2013. It's based in Europe, so those who choose an EU-based business might choose Buffered. We like how Buffered has made a strong dedication to Web liberty, and an equally strong dedication to supplying quality customer support.
At $12.99 monthly and $99.00 for a year of service, they do not provide the least costly plan, but we do suggest providing a shot.
SEE ALL BUFFERED VPN PLANS.
goose.
Goose VPN.
Variety of IP addresses: 8.
Variety of servers: 8.
Number of server locations: 39.
I needed to know why Goose VPN was so named. My very first order of business was to connect to the company's co-founder and ask. Geese, I was told, make exceptional guard animals. There are records of guard geese providing the alarm in ancient Rome when the Gauls assaulted. Geese have been utilized to secure an US Air Defense Command base in Germany and a brewery in Scotland.
It's clear that the goose is an ideal mascot for a service that's suggested to guard your digital communications. And so, we have Goose VPN.
Goose VPN has a number of standout features. Initially, you can have a limitless variety of synchronised connections (or gadgets) using the VPN at once. Second, if your bandwidth requirements are 50 GB or less per month, you can register for $2.99/ month, the most inexpensive monthly rate we have actually seen.
If you desire unlimited bandwidth, the company definitely is pushing you towards purchasing a year at a time. Their regular monthly cost for unrestricted bandwidth is a middle-of-the-road $12.99/ month, but if you invest $59.88 for a year's service, you'll find it's the second least expensive by-the-year price of the services we have actually examined.
Goose supplies all the typical clients, including iOS, Android, Mac, and Windows, and adds assistance for routers, Android TELEVISION, and Linux. They are dealing with a kill switch function, which may even be up and running by the time you read this evaluation. The company also provides 24/7 ticket-based support.
Ducks quack, geese honk, and swans whoop (we know, because we looked it up). Overall, particularly provided the limitless connections and low yearly rate, we believe Goose VPN is something to beep about.
SEE ALL GOOSEVPN PLANS.
surfshark-logo.
Surfshark.
Variety of servers: 800+.
Variety of server locations: 50.
Country/Jurisdiction: British Virgin Islands.
While Surfshark's network is smaller than some, they make it up on functions. Let's start off with the greatest win they provide: endless device assistance. If you want to run your whole home or office on Surfshark's VPN, you don't have to worry about the number of gadgets you have on or linked. They also use anti-malware, advertisement stopping and tracker blocking as part of their software application.
The company has a solid variety of app support, running on Mac, Windows, iOS, Android, FireTV, and through routers. We particularly like the feature that permits you to whitelist certain apps and websites to instantly bypass the VPN. For some service usage, this can be seriously crucial.
Surfshark also offers three special modes developed for those who wish to get around limitations and more thoroughly hide their online footsteps. Camouflage Mode masks your VPN activity so your ISP does not know you're utilizing a VPN. MultiHop dives your connection through multiple nations to hide your trail. Lastly, NoBorders Mode "allows [you] to successfully use Surfshark in restrictive areas." Just be careful. Doing any of these three things might be illegal in your nation and could lead to really extreme penalties.
For a year plan, Surfshark can be found in very close to much of the other full-featured VPN suppliers, at $71.88 for the first year. Take care, because it looks like that will jump to $143.40 after your very first year is up. Month-by-month plans are $11.95. Their finest deal is $1.99 a month, for their 24 month strategy (you pay $47.76 up front). Absolutely benefit from their generous 30-day trial to choose if you like this service (and possibly set a reminder in 23 months to see if you can talk them into a continued discount rate).
SEE ALL SURFSHARK PREPARES.
WEBROOT LOGO.
Webroot WiFi Security.
Country/Jurisdiction: United States.
Beginning rate: $39.99.
As VPN services go, Webroot WiFi Security is relatively bare-bones-- but it's also low-cost. Starting at $39.99 for a year of VPN service, you can get a package with both VPN and Webroot's antivirus software for $69.98 for your very first year. Sadly, both of these costs bump up after the first year. VPN security leaps to $59.99 and the package jumps to $119.98.
While we praise the combination of VPN and anti-viruses in one package, Webroot has had a troubled few years. In 2017, it wrongly flagged Windows' system files as malicious. In 2018, a kernel exploit was found in the business's Mac anti-virus client. In 2019, the company was acquired by backup company Carbonite.
If you're only safeguarding a couple of gadgets and wish to conserve loan, Webroot's VPN might be for you. That $39.99 rate is for as much as three devices. If you wish to protect 5 devices, you'll require to pay $59.99 for a year and $79.99 after that. Honestly, as soon as you get in that price variety, there are products with more abilities readily available.
Webroot's VPN is also light on protocols. While they do link utilizing IKEv2 by default, they likewise provide L2TP and the very old and very insecure PPTP protocol (although they do warn that it's not "as" protect. Another concern for those of you who need deep security is that the business does log both which VPN server location you link to and the nation you connect from.
So who is Webroot's VPN for? If all you wish to do is protect your Wi-Fi connection while browsing in your local cafe or at a hotel, you only require to connect a couple of devices, and you wish to save money, this is a convenient alternative. However if you require a major VPN with deep capabilities, you'll want to look elsewhere in this directory. Likewise, we didn't discover any reference to a money back warranty, so check with their pre-sales and support prior to purchasing.
SEE ALL WEBROOT WIFI SECURITY PLANS.
VPN FAQ
Since we're living in a connected world, security and privacy are critical to ensure our personal safety from nefarious hacks. From online banking to communicating with coworkers on a daily basis, we're now frequently transferring data on our computers and smartphones. It's extremely important to find ways of securing our digital life and for this reason, VPNs have become increasingly common.
What Is a VPN?
A virtual private network (VPN) is a technology that allows you to create a secure connection over a less-secure network between your computer and the internet. It protects your privacy by allowing you to anonymously appear to be anywhere you choose.
A VPN is beneficial because it guarantees an appropriate level of security and privacy to the connected systems. This is extremely useful when the existing network infrastructure alone cannot support it.
For example, when your computer is connected to a VPN, the computer acts as if it's also on the same network as the VPN. All of your online traffic is transferred over a secure connection to the VPN. The computer will then behave as if it's on that network, allowing you to securely gain access to local network resources. Regardless of your location, you'll be given permission to use the internet as if you were present at the VPN's location. This can be extremely beneficial for individuals using a public Wi-Fi.
Therefore, when you browse the internet while on a VPN, your computer will contact the website through an encrypted VPN service connection. The VPN will then forward the request for you and forward the response from the website back through a secure connection.
VPNs are really easy to use, and they're considered to be highly effective tools. They can be used to do a wide range of things. The most popular types of VPNs are remote-access VPNs and site-to-site VPNs.
What is a remote-access VPN?
A remote-access VPN uses public infrastructure like the internet to provide remote users secure access to their network. This is particularly important for organizations and their corporate networks. It's crucial when employees connect to a public hotspot and use the internet for sending work-related emails. A VPN client, on the user's computer or mobile device connects to a VPN gateway on the company's network. This gateway will typically require the device to authenticate its identity. It will then create a network link back to the device that allows it to reach internal network resources such as file servers, printers and intranets, as if it were on the same local network.
It usually relies on either Internet Protocol Security (IPsec) or Secure Sockets Layer (SSL) to secure the connection. However, SSL VPNs can also be used to supply secure access to a single application, rather than an entire internal network. Some VPNs also provide Layer 2 access to the target network; these will require a tunneling protocol like PPTP (Point-to-Point Tunneling Protocol) or L2TP (Layer 2 Tunneling Protocol) running across the base IPsec connection.
What is a site-to-site VPN?
This is when the VPN uses a gateway device to connect to the entire network in one location to a network in another location. The majority of site-to-site VPNs that connect over the internet use IPsec. Rather than using the public internet, it is also normal to use career multiprotocol label switching (MPLS) clouds as the main transport for site-to-site VPNs.
VPNs are often defined between specific computers, and in most cases, they are servers in separate data centers. However, new hybrid-access situations have now transformed the VPN gateway in the cloud, typically with a secure link from the cloud service provider into the internal network.
What is a mobile VPN?
A traditional VPN can affect the user experience when applied to wireless devices. It's best to use a mobile VPN to avoid slower speeds and data loss. A mobile VPN offers you a high level of security for the challenges of wireless communication. It can provide mobile devices with secure access to network resources and software applications on their wireless networks. It's good to use when you're facing coverage gaps, inter-network roaming, bandwidth issues, or limited battery life, memory or processing power.
Mobile VPNs are designed and optimized to ensure a seamless user experience when devices are switching networks or moving out of coverage. It generally has a smaller memory footprint, and because of that, it also requires less processing power than a traditional VPN. Therefore, it enables your applications to run faster while the battery pack is able to last longer.
A Mobile VPN is a worthwhile tool to have since it increases privacy, user satisfaction and productivity, while also reducing unforeseen support issues caused by wireless connectivity problems. The increasing usage of mobile devices and wireless connectivity make it more important to ensure that your data is being transferred through a secure network. It will allow you to access the internet, while staying safe behind a firewall that protects your privileged information.
Who needs a VPN?
Individuals that access the internet from a computer, tablet or smartphone will benefit from using a VPN. A VPN service will always boost your security by encrypting and anonymizing all of your online activity. Therefore, both private and business users can benefit from using a VPN. Communications that happen between the VPN server and your device are encrypted, so a hacker or website spying on you wouldn't know which web pages you access. They also won't be able to see private information like passwords, usernames and bank or shopping details and so on. Anyone that wants to protect their privacy and security online should use a VPN.
How to choose a VPN Service?
There's a vast range of VPN servers on the internet. Some are free, but the best ones require a monthly subscription. Before you decide to download a VPN, make sure you consider these factors for understanding a VPN:
Cost - VPNs aren't too pricey, but they vary from vendor to vendor. If your main concern is price, then go with something inexpensive, or free - like Spotflux Premium VPN or AnchorFree HotSpot Shield Elite. By all means, try a free server but they do have a few drawbacks since they attract a lot of users. Free servers are often slower, and since most are ad-supported, they place adverts on the online pages you access. Others can even limit the speed of your connection, as well as your online time or amount of data transferred.
It's also important to note that leading VPN providers such as NordVPN and Privacy Internet Access offer stronger security features to ensure you're digitally safe. When selecting a paid VPN service, always be sure to check which countries it operates servers in.
Reliability - Select a VPN that is reliable and read the reviews to make sure that it's capable of protecting you by providing you with sufficient online privacy.
High security - An effective VPN will have the following security features: 128-bit encryption, anonymous DNS servers and an absence of connection logs.
Are there any bandwidth limits? This can often be linked to price; paying more will generally provide more bandwidth with faster internet access.
Are apps for Android, iOS phones and tablets available? Apps for Android and iOS devices are also vulnerable, so make sure your VPN server can support them.
To ensure privacy, you want to make sure you have a VPN that doesn't store online logs. Some servers provide virus and spyware protection, and features like that can significantly increase your online safety.
Using a no-logs VPN service will provide you with a higher degree of security. It can protect you from blanket government surveillance and prevent your internet service provider from knowing your online activity.
Using a VPN for Netflix and other forbidden treasures
Online streaming services like Netflix and Hulu have been making it difficult for foreign users to access their content in other countries. Many people can get around region restrictions by using a VPN service to route your traffic through another country.
It can be quite simple to watch Netflix and other restricted goodies. You'll have to use a VPN service that allows you to get a unique IP address. This can often be available for an additional fee. Look for VPN services that offer a "dedicated IP address", "dedicated IP", or "static IP." Additional features like these will always allow you to access content from Netflix through a VPN service.
This is by far the easiest way to access your forbidden apps since there's no specific way to block VPN traffic.
A lot of people started using a VPN to evade geo-restrictions. But despite its forbidden benefits to users outside the US, a VPN is a great tool that can protect you and enhance your online experience over the internet by providing you with sufficient security and privacy. When it comes to selecting the best VPN, you have plenty of choices. There are many cost-effective VPN options, and all of them will vary in monthly offerings. Choosing the best VPN is easier once you narrow down the competition. The best indication of a good VPN service provider is that they have the right security and the right support in place for you.
submitted by babysocola to VPNsReddit [link] [comments]

Synchronising / tails issue?

First off I'll say I should be using the currently most updated version of tails. 3. something I think. I also have electrum 3.1.3
So, I made a bitcoin transaction from Coinbase to tails. At first it was taking awhile for the transaction to be completed and tails was still synchronising. Out of a stupid decision I decided to send the money before it finished synchronising as it usually works fine, Not that I aim to do this but have by mistake a few times and it normally just finishes and loads my wallet.
It wont stop synchronising tho, If I try send money it say's not enough funds. If I choose, and I've tried ever server on the list, a different server (right clicking and joining) it just shows the red dot.
The main issue I am having is I have already sent money to the wallet, not an amount I personally want to loose.
I also did not set up persistence due to more anonymity but I let go of that and set it up straight after all this. I saved everything including tails, personal data and network connections so I am assuming that means I'll have a password next login and my electrum wont need to be set up every time.
Can someone please give me an answer tho will this save the bitcoin I put into my electrum if it eventually loads and I shit down my pc then re boot again? Or dose the persistence only start saving from the next time you login with that password ?
TL;RD:
1: If I set up persistence in tails in the same session I sent bitcoin to my electrum wallet but the wallet is still synchronising (usually still works, not sometime I try to do) Will it save my funds or will it start saving to my persistence from the next session and I loose my money?
2: Bitcoin has sent to electrum wallet address and it completed from coinbase, dose this the money is in hyper space and do I just wait it out a few days until electrum has it? Or is it gone forever? :(
submitted by THROWAWAYSadKid-666 to Electrum [link] [comments]

What is ICO? A Beginner’s Guide

What is ICO? A Beginner’s Guide

https://preview.redd.it/20ilxe7h6sf31.jpg?width=672&format=pjpg&auto=webp&s=62b210ed3a0c117152feb62a6d7f798f1840ae5e
ICO stands for “Initial Coin Offering”. In a nutshell, ICO is a process to raise fund for a specific project in terms of cryptocurrency, such as Ethereum or Bitcoin, in return for its tokens that can be used in its specific services or applications.
Similar to initial public offering (IPO), instead of money in terms of fiat currencies e.g. U.S. Dollars is being raised, cryptocurrency is raised to support the project for ICO. In return, a certain number of tokens that is built on its specific application blockchain technology will be allocated to the contributors instead of shares. These tokens can be traded on some private exchanges.
Alternatively, some may describe ICO as an alternative mean of crowdfunding to support blockchain-related projects by means of token sale, of which the tokens can be applied to their services and applications.

How Does ICO Work?

From a creator’s perspective, a service or application is to be built based on blockchain technology with protocol, set of rules and white paper being established. Afterwards, the creators will bring forward the white paper, which will illustrate the details of the project e.g. project idea and mechanism, implementation schedule, capital required etc; and arrange token pre-sale, sale, marketing and listing through various communication means and private exchanges.
ICO will be opened for a fixed amount of token sales within a certain period, which usually varies from a few weeks to a month. Some may open for various rounds of token sales with limited amount of token to be sold during each phrase. Furthermore, some ICO may offer pre-sale for privileged or selected investors at a discount before the actual sales date. In general, the token issuers will be transparent regarding the token mechanism and token allocation, which will usually state in the white paper.

How Can I Participate?

1. Acquire Bitcoin or Ethereum through Registration with a Cryptocurrency Online Exchange
To participate in ICO or token sales, you need to obtain Bitcoin or Ether, which are more commonly accepted for ICO, as ICO or token sales usually will not accept fiat currencies like US dollars. Since most of the project idea and application of the ICO are leverage on the Ethereumplatform, hence Ether may be more popularly acceptable in general while Bitcoin or even some other altcoin can still be acceptable depending of different ICOs.
If you do not own any cryptocurrency, you can consider registering an account with an online cryptocurrency exchange, and then purchasing Bitcoin or Ether through the online exchange. It usually takes a few days, which varies from different online exchanges, for a normal person to register with the online exchange service providers because of the Know-your-customer (KYC) and Anti-money Laundering (AML) regulations. Due to KYC and AML regulations, you are usually required to provide your personal particulars e.g. name, date of birth etc., official identity proof e.g. passport copy, and address proof to open an account with the online exchanges, which they will then process and validate your information.
After you successfully registered an account with the online exchanges, you can purchase for Bitcoin, Ether, or any other available cryptocurrencies with your USD, EUR etc. as transferred to the online exchange. The cryptocurrencies that you purchased will be sent directly to your online wallet of the online exchange that you registered.
As you will rely on the online exchanges to keep your cryptocurrencies for you, it may be risky to store your cryptocurrencies with them, of which you may lose your cryptocurrency, due to counter-party risk such as the online exchange may collapse or being attacked or hacked by others. Therefore, it may be safer to store your cryptocurrencies in a more secure software or hardware blockchain wallet that is under your control.
2. Establish your Cryptocurrency Wallet
Since most of the ICO or token sales are held on Ethereum platform, it is better to have an Ethereum-based wallet. Do note that not all blockchain wallets are suitable or compatible for ICO as some may only support Bitcoin storage but not Ethereum-based cryptocurrency.
Some popular desktop and web-based wallet are MetaMask and MyEtherwallet respectively. MetaMask looks like a browser that allows you to access the Ethereum network, which does not only allow you to store and transfer your cryptocurrencies, but also allow you to access applications that leverages on decentralized Ethereum network. MyEtherWallet is slightly different from traditional web-based wallets, which does not hold your private keys. Therefore, the wallet owner will have the control of the Ethereum’s private key. It is an open-source wallet with inbuilt blockchain and ethereum facility. The wallet can also connect with other hardware wallets e.g. Ledger Nano S or Trezor, which you can access to your funds in these hardware wallets via MyEtherwallet browser.
3. Cryptocurrencies Transferred from Online Exchange to your Cryptocurrency Wallet
Most of the online exchange may not offer the access to the new token as offered by the ICO, therefore, if you send Bitcoin or Ether to the ICO address, you may not be able to receive the new tokens. As a result, you need to transfer the cryptocurrency bought via the online exchange to your Ethereum-based wallet that support the new token of the ICO.
Instead of storing large amount of funds in these desktop or web-based wallets as mentioned above, you can simply use it for ICO purpose such as fund transfer or purchase of new tokens. It may be more secure to store your cryptocurrencies in a hardware wallet or paper wallet instead as compare to desktop or web-based wallets.

Some successful ICOs
4. Registered for ICO Whitelist
Some ICOs to require participants to register in their whitelist before the token sales launch date, which has become a common trend. If you do not enrol in the whitelist, you cannot participate in the token sales afterwards. Normally, only successful whitelist participants can participate in it.
In general, there may be some criteria for you to be able to participate in the whitelist and hence token sales, for instance, some may exclude participants from specific jurisdiction such as China, US etc. depending on the practice of each ICO. To apply, each participant may need to provide some personal information, which usually includes name, email, Ether wallet address etc., and some may also require passport copy for KYC purpose. Besides, you may also need to provide the target number of tokens that they wish to purchase during token sales. Generally, there is a cap for the number of tokens that each participant can purchase the participants may not be able to purchase more than the allocated amount.
5. Points to Note before Token Sales
After you have successfully registered in the ICO whitelist, you can participate in the ICO by purchasing its new tokens.
Before anyone who wish to proceed with the token sales, you should read carefully the general terms of the ICO including but not limited to the details of the whitepaper, the token mechanism and the token purchase agreement. Besides, there are usually step-by-step guidelines to advise you on how to purchase the ICO tokens as provided by the ICO initiator. To learn more about the latest news about the ICO and stay up-to-date, you can join their social media channels such as Telegram, Slack etc.
As mentioned earlier, there is a limited timeframe for ICO to be opened for token sales, which the ICO will either state clearly the specific time or block numbers. You should ensure that you are synchronising the same time-zone when a specific time is given. For specific block numbers being provided, you can apply Ethereum block explorer to check the block numbers.
6. Purchase ICO Tokens
If you decided to proceed with the token sales, you need to send Ether from your wallet to the address as stated by the ICO team once the token sale begins. In parallel, you are required to pay “gas” for the “transaction”, hence you will have to set a gas limit in your wallet.
Before we move on, what is “Gas”?
In a nutshell, when you transfer cryptocurrencies, engage in a Ethereum-based smart contractor do anything on the ethereum network, you need to pay transaction fees. The payment will be calculated in terms of “Gas” which is to be paid in terms of Ether. Since blockchain is a decentralized technology, it requires miners to validate and execute each transaction that you made through the Ethereum network. Therefore, you need to pay the transaction fee or computation cost to these miners so that they could validate and execute your transactions successfully.
After your transaction to transfer Ether is successfully validated, you may come across the several common scenarios regarding your receipt of tokens depending the mechanism of each ICO. For example:
  • You may receive your tokens a few days after your transactions
  • You may receive your tokens after the end of the token sales
  • You may need to claim your tokens manually after the token sales

Extra Points to Note:

  • After you obtain the new ICO tokens, it may be better for you to transfer to a more secure wallet such as hardware or paper wallet
  • Be careful that the ICO wallet address as stated in the ICO website may be fake. This is because some hackers may hack the ICO websites and replace their own wallet address with the real ICO address.
Original Blog Post: https://icoinsider.tech/what-is-ico/
Disclaimer: This is neither a legal nor an investment advice. It does not represent any parties, including but not limited to previous and existing employers, partners etc, viewpoint and opinion. Moreover, anything written in this article is purely personal view and should not be constructed as investment advice or recommendation to participate in ICO.
submitted by Tokenberry to NewbieZone [link] [comments]

Trouble with electrum on tails? (Synchronising, updating, no persistence)

First off I'll say I should be using the currently most updated version of tails. 3. something I think. I also have electrum 3.1.3
So, I made a bitcoin transaction from Coinbase to tails. At first it was taking awhile for the transaction to be completed and tails was still synchronising. Out of a stupid decision I decided to send the money before it finished synchronising as it usually works fine, Not that I aim to do this but have by mistake a few times and it normally just finishes and loads my wallet.
It wont stop synchronising tho, If I try send money it say's not enough funds. If I choose, and I've tried ever server on the list, a different server (right clicking and joining) it just shows the red dot.
The main issue I am having is I have already sent money to the wallet, not an amount I personally want to loose.
I also did not set up persistence due to more anonymity but I let go of that and set it up straight after all this. I saved everything including tails, personal data and network connections so I am assuming that means I'll have a password next login and my electrum wont need to be set up every time.
Can someone please give me an answer tho will this save the bitcoin I put into my electrum if it eventually loads and I shit down my pc then re boot again? Or dose the persistence only start saving from the next time you login with that password ?
TL;RD:
1: If I set up persistence in tails in the same session I sent bitcoin to my electrum wallet but the wallet is still synchronising (usually still works, not sometime I try to do) Will it save my funds or will it start saving to my persistence from the next session and I loose my money?
2: Bitcoin has sent to electrum wallet address and it completed from coinbase, dose this the money is in hyper space and do I just wait it out a few days until electrum has it? Or is it gone forever? :(
submitted by THROWAWAYSadKid-666 to tails [link] [comments]

Mega FAQ (Or: Please come here for your questions first)

Qbundle Guide (Step by step setup & Bootstrap) https://burstwiki.org/wiki/QBundle
1( I want to mine or activate My account. Where do find the multiple coins?
You only need 1, an outgoing transaction or reward reassignment will set the public key. Get them from:
https://www.reddit.com/burstcoinmining/comments/7q8zve/initial_burstcoin_requests/
Or (Faucet list)
https://faucet.burstpay.net/ (if this is empty, come back later)
http://faucet.burst-coin.es
Or
https://forums.getburst.net/c/new-members-introductions/getting-started-initial-burstcoin-requests
2( I bought coins on Bittrex and want to move to my new wallet, but can't. Why?
Bittrex will only send to accounts with a public key (not a Burst requirement) so see number 1 and either set the name on the account (IF you will not mine) or set the reward recipient to the pool. Either action will enable the account and allow for transfers from Bittrex.
3( I sent coins from Poloniex/anywhere to Bittrex and they don’t show up after a considerable time. Why?
You need to set an unencrypted message on the transaction, informing Bittrex which account to send the funds to (this is in the directions on Bittrex). Did you do this? Contact Bittrex support with all the details and eventually you will get your funds.
4( How much can I make on Burst?
https://explore.burst.cryptoguru.org/tool/calculate
Gives you an average over time assuming a few things like: Average luck/100% uptime/no overlapping/fees on pool/good plot scan time (<20 seconds) if you do not have all of these, you may not see that number.
5( If I use SSD’s would I make more money?
No, it’s 95% capacity and 5% scan time that determine success. More plot area = better deadlines = better chance of forging a block, or better rates from a pool.
6( What is ‘solo’ and ‘pool’ (wasn’t his name Chewbacca?)
Solo is where you attempt to ‘forge’ (mine) a block by yourself; you get 100% of the block reward and fees. But you only receive funds if you forge, no burst for coming in second place.
Pools allow a group of miners to ‘pool’ together their resources and when a miner wins, they give the pool the winnings (this is done by the reward assignment you completed earlier), it is then divided according to different percentages and methods and burst is sent out according to pool rules (minimum pay-out, time, etc.)
7( I have been mining for 2 days and my wallet doesn’t show any Burst WHY?
Mining solo: it is win-or-lose, nothing in between, and wining is luck and plot size. Pool mining: because it costs 1 burst to send burst, the pools have either a time requirement (every X days) or a minimum amount (100 burst +) so you need to research your pool. Some pools allow for you to set the limit (cryptoGuru and similar) to be met before sending
8( How do I see what I have pending?
On CryptoGuru, based pools, it’s the ‘Pending (burst)’ column, other pools, look for the numbers next to your burst ID. One is Paid and the other pending.
9( I’m part of a pool and I forged a block, but I didn’t recieve the total value of the block, why?
A pool has 2 basic numbers that denote the pay-out method, in the format ‘XX-XX’ (i.e. 50-50) The first number is the % paid to the block forger (miner) and the second is the retained value, which is paid to historic ‘shares’ (or, past blocks that the pool didn’t win, but had a miner that was ‘close’ to winning with a good submitted deadline)
Examples of pools:
0-100 (good for <40TB)
20-80 (30-80TB)
50-50 (60-200TB)
80-20 (150-250)
100-0 (solo mine, 150+ TB)
Please note that there is an overlap as this is personal preference and just guidance; a higher historical share value means a smoother pay-out regime, which some people prefer. If fees are not factored in, or are the same on different pools, the pay-out value will be the same over a long enough period.
10( Is XXX model of hard drive good? Which one do you recommend?
CHEAP is best. If you have 2 new hard drives, both covered by warranty, get the one with the lowest cost per TB (expressed as $/TB , calculated by dividing the cost by the number of terabytes) because plot size is KING,
11( How many drives can I have on my machine?
For best performance, you can have up to 2 drives per thread (3 on a new fast AVX2 CPU). So that quad-core core-2-quad can have up to 8 drives, but a more modern i7 with 4 cores + hyper threading can squeeze 8 * 3 or 24 drives. (Performance while scanning will suffer)
12( Can I game while I mine?
Some people have done so, but you cannot have the ‘maximum’ number of drives and play games generally.
13( Can I mine Burst and GPU mine other coins?
Yes, if you CPU Mine Burst.
14( I’m GPU plotting Burst and GPU mining another coin, my plots are being corrupted, why?
My advice is dedicating a GPU to either mining or plotting, don’t try to do both.
15( What is a ‘plot’?
A plot is a file that contains Hashes, these hashes are used to mine burst. A plot is tied to an account, but they can be created (with the same account ID) on other machines and connected back to your miner(s).
16( Where can I trade/buy/sell Burst?
A list of exchanges is maintained on https://www.reddit.com/burstcoin/ (on the right, ‘Exchanges’ tab) the biggest at the moment are Bittrex and Poloniex, some offer direct Fiat-to-Burst purchase (https://indacoin.com for example)
17( Do I have to store my Burst off the exchange?
No, but it’s safer from hackers who target exchanges, if you cannot guarantee the safety or security of your home computer from Trojans etc, then it might be best to leave on an exchange (but enable 2FA security on your account PLEASE!)
18( What security measures can I take to keep my coin safe?
When you create an account, sign out and back in to your wallet (to make sure you have copied the pass phrase correctly) and keep multiple copies of the key (at least one physically printed or written down and in a safe place, better in 2 places) do not disclose the passphrase to anyone. Finally use either a local wallet or a trusted web wallet (please research before using any web wallet)
19( How can I help Burst?
Run a wallet, which will act as a node (or if you’re a programmer, contact the Dev team Bring attention to burst (without ‘shilling’ or trying to get people to buy) And help translate into your local language
Be a productive member of the community and contribute experience and knowledge if you can, or help others get into Burst.
20( Will I get coins on the fork(s) and where will they be?
There will be no new coin, and no new coins to be given/air dropped etc, the forks are upgrades to burst and there will not be a ‘classic’ or ‘new’ burst.
21( Will I need to move my Burst off of the exchange for the fork?
No, your transactions are on the block chain, which will be used on the fork, they will be visible after the move; nothing will need to be done on your side.
22( Where can I read about the progress of Burst and news in general on the community?
There is no finer place than https://www.burstcoin.ist/
23( What are the communities for Burst and the central website?
Main website: https://www.burst-coin.org/
Reddit: https://www.reddit.com/burstcoin and https://www.reddit.com/burstcoinmining/
Burstforum.net: https://www.burstforum.net/
Getburst forum: https://forums.getburst.net/
Official Facebook channel: https://m.facebook.com/groups/398967360565392
(these are the forums that are known to be supporting the current Dev Team)
Other ways to talk to the community:
Discord: https://discordapp.com/invite/RPhpjVv
Telegram (General): https://t.me/burstcoin
Telegram (Mining): https://t.me/BurstCoinMining
24( When will Burst partner up with a company?
Burst is a currency, the USD does not ‘partner up’ with a company, the DEV team will not partner up and give over to special interests.
25( Why is the DEV team anonymous?
They prefer anonymity, as it allows them to work without constant scrutiny and questions unless they wish to engage, plus the aim is for Burst to become a major contender, and this brings issues with security. They will work and produce results, they owe you nothing and if you cannot see the vision they provide then please do not ‘invest’ for short term gain.
26( When moon/Lambo/$100/make me rich?
My crystal ball is still broken, come back to the FAQ later for answer (seriously, this is a coin to hold, if you want to day-trade, good luck to you)
27( How can I better educate myself and learn about Dymaxion?
Read about the Dymaxion here: https://www.reddit.com/burstcoin/wiki/dymaxion
28( My reads are slow, why?
There are many reasons for this, if your computer has a decent spec it’s likely due to USB3 hub issues, or plugging into a USB2 hub, but other reasons can be multiple plots in the same folder, but it’s best to visit the mining subreddit. They can help more than an simple FAQ https://www.reddit.com/burstcoinmining/
29( I have a great idea for Burst (not proof of stake related)?
Awesome! Please discuss with the DEV team on discord https://discordapp.com/invite/RPhpjVv
(Please be aware that this is a public forum, you need to find who to ask/tell)
30( I have a great idea for Burst (Proof of stake related)?
No. if you want a POS, find a POS coin. On the tangle which is being implemented a POS/POW/POC coin can be created, but BURST will always be POC mined. You are welcome to implement a proof of stake coin on this!
31( Will the Dev team burn any coins?
Burst is not an ICO, so any coins will need to be bought to be burnt. You are welcome to donate, but the DEV team have no intention of burning any coins, or increasing the coin cap.
32( When will there be an IOS wallet?
IOS wallet is completed; we are waiting for it to go on the app store. Apple is the delaying factor.
33( Why do overlapping plots matter?
Plots are like collections of lottery tickets (and if only one ticket could win). Having 2 copies is not useful, and it means that you have less coverage of ‘all’ the possible numbers. It’s not good, avoid.
34( My local wallet used to run, I synchronised it before and now it says ‘stopped’. when I start it, it stops after a few seconds, what should I do?
I suggest that you change the database type to portable MariaDB (on Qbundle, at the top, ‘Database’ select, ‘change database’) and then re-import the database from scratch (see 35)
35( Synchronising the block chain is slow and I have the patience of a goldfish. What can I do?
On Qbundle , ‘Database’ select ‘Bootstrap chain’ and make sure the CryptoGuru repository is selected, then ‘start Import’ this will download and quickly stuff the local database (I suggest Portable MariaDB, see 34) (lol, loop)
36( What will the block reward be next month/will the block rewards run out in 6 months?
https://www.ecomine.earth/burstblockreward/ Rewards will carry on into 2026, but transaction fees will be a bigger % by then, and so profitable mining will continue.
37( How can I get started with Burst (wallet/mining/everything) and I need it in a video
https://www.youtube.com/watch?v=LJLhw37Lh_8 Watch and be enlightened.
38( Can I mine on multiple machines with the same account?
Yes, if you want to pool mine this can be done (but be prepared for small issues like reported size being incorrect. Just be sure to keep question 33 in mind.)
39( Why do some of my drives take forever to plot?
Most likely they are SMR drives, it’s best to plot onto another SSD and then move the finished plot/part of a plot across to the SMR drive as this is much quicker. SMR drives are fine on the read, just random writes that are terrible.
So plot an SMR drive quickly, plot to a non SMR or better still SSD drive, in as big a chunk as possible (fewer files better) and move. a version of Xplotter, called Splotter, can do this easily.
https://github.com/NoParamedic/SPlotter
40( I have a great idea; why not get listed on more exchanges!!
Exchanges list coins because of 2 reasons:
  1. Clients email and REQUESTING Burst and provide details like:
    i. https://www.burst-coin.org/information-for-exchanges
  2. The coin pays (often A LOT, seriously we’ve been asked for 50 BTC)
I suggest you speak with your exchange and ask ‘when will they offer Burst?’
41( Do you have a roadmap?
https://www.burst-coin.org/roadmap
42( Why is the price of Burst going up/down/sideways/looping through time?
The price of burst is still quite dependent upon Bitcoin, meaning that if Bitcoin gains, the value of Burst gains, if Bitcoin drops then Burst also drops. If there is news for Burst then we will see something independent of Bitcoin moving. Variations can be because of people buying in bulk or selling in bulk. There are also ‘pump and dump’ schemes that we detest, that can cause spikes in price that have nothing to do with news or Bitcoin, just sad people taking advantage of others.
43( Where is the best place to go with my mining questions?
https://www.reddit.com/burstcoinmining/
or https://t.me/BurstCoinMining
44( What hardware do you advise me to buy, is this computer good?
See question 43 for specific questions on hardware, it depends on so many variables. The ‘best’ in my opinion is a 36 bay Supermicro storage server, usually they have dual 6-core CPU’s and space for 36 drives. No USB cables, plotting and mining monster, anything else, DYOR.
45( Where do you buy your hard drives?
I have bought most from EBay in job lots, and some refurbished drives with short warranties. Everything else I have bought, from Amazon.
46( Can I mine on my Google drive/cloud based storage?
In short: no. If you want to try, and get to maybe 1 TB and then find that your local connection isn’t fast enough, or that shortly after, your account is blocked for various reasons. Please be my guest.
47( Can I mine on my NAS?
Some you can mine with the NAS (if it can run the miner, it can scan locally) but generally they’re not very fast. good for maybe 16 TB? Having a plot on a NAS and mining from another computer depends on the network speed between the NAS and scanning computer. I believe you can scan about 8 TB (maybe a bit more) and keep the scan times to within acceptable, but YMMV.
48( How can I set up a node?
No need to set up a node, just set up a wallet (version 2.0.4) or Qbundle (2.2) and it will do the rest
49( Are the passphrases secured?
I’ll leave the effort to a few people to show how secure a 12-word passphrase is: https://burstforum.net/topic/4766/the-canary-burst-early-warning-system Key point: brute forcing it will be around 13,537,856,339,904,134,474,012,675,034 years.
50( I logged into my account (maybe with a different burst ID) and see no balance!!
I have dealt with this very issue multiple times, and there are only 3 options:
  1. You have typed in the password incorrectly
  2. You have copy-pasted the password incorrectly
  3. You are trying to log into a ‘local wallet’ which the block chain has not finished updating
The last one generally leaves the burst ID the same, but old balances will show. No, this is not a security problem, and yes, windows loves to add spaces after the phrase you enter when copied, and that space is important in getting to your account.
51( Are there channels for my language?
Telegram:
Spanish: https://t.me/burstcoin_es
German: https://t.me/Burstcoinde
Italian: https://t.me/BurstCoinItalia
Forum:
Spanish: https://burst-coin.es/index.php/forum/index
Discord:
Spanish: https://discordapp.com/invite/RaaGna9
Bulgarian: https://discord.gg/r4uzTd
(there are others, please contact me to put up)
52( I am mining in a pool, and it says that my effective capacity is lower than I actually have, why?
  1. If you've not been mining for >48 hours, or just added additional capacity, it will take time.
  2. The value fluctuates (normally, +-5% but can be up to 10% at times)
  3. Read on the ‘Quick info’ tab about adjusting your deadline to compensate for changes i. revisit once a month for best results
  4. If you have overlapping plots it will also be lower so be aware of this (see question 33)
53( What pool should I join?
First of all, read question 9, after you have understood that it depends on the size (and how patient you are) select from the following list: https://www.ecomine.earth/burstpools/
54( What miner to use?
I use Blago’s miner, there are many out there but Blago’s works for me on CPU mining, it can be found in Qbundle.
55( What Wallet to use (I use windows)?
Qbundle: https://github.com/PoC-Consortium/Qbundle/releases/ guide: https://burstwiki.org/wiki/QBundle
56( What Wallet to use (Linux)?
https://package.cryptoguru.org/ for Debian and Ubuntu, for Mac. read:
https://www.ecomine.earth/macoswalletinstallguide/
57( Will i need to 'replot' after POC2 (second fork) happens?
No, there will be a tool which will optimise, but it is not CPU intensive (it basically re-shuffles your plot) and is just IO intensive. You do not need to replot.
TurboPlotter and https://github.com/PoC-Consortium/Utilities/tree/mastepoc1to2.pl are tools that will/can be used to actuate optimization, but PLEASE wait with optimization until after the hard fork.
58( Will the transaction fee always be 1 burst?
No, dynamic fees are coming in the next fork.
submitted by dan_dares to burstcoin [link] [comments]

Electrum-ECC light wallet released

Electrum-ECC
It’s so simple. Just start Electrum-ECC, create your wallet, then send and receive ECC immediately. No 8+ hours sync necessary!
For download links see below.
Screenshot of the Electrum-ECC main screen
Electrum-ECC gives users a simple desktop wallet app (Windows, MacOs, Linux) that does not need a local copy of the blockchain. Rather than the lengthy blockchain synchronisation process required to sync a full node, the Electrum-ECC client securely connects to an Electrum server for all its blockchain business whilst all crypto keys are held securely on the user’s device.
The Electrum-ECC wallet is created from a key phrase consisting of 12 random words. This means that if the user’s device is stolen or experiences unrecoverable data loss, the exact same wallet can be re-created on another device simply by entering the 12 word key phrase. And for the ultimate in cold storage security, you can securely delete your Electrum-ECC installation with your wallet key phrase stored in a safe place for later re-creation.
However, because the Electrum-ECC client app is not a full node, it is unable to stake and supports only payment transactions. If you wish to support ECC’s network security by staking or access future network services, you need to run a full node. You can run both, but bear mind that even with both installed on the same device, the full node and Electrum-ECC wallets remain entirely separate.
Electrum-ECC has been adapted from recent versions of the ElectrumX server and Electrum client apps for Bitcoin. It is tried and tested software with a very large community of users. Rather than fork the ElectrumX server, the changes necessary to support ECC were contributed back into the ElectrumX project, which already has support for a number of other coins. You can see those changes to add ECC support here:
https://github.com/kyuupichan/electrumx/pull/769
The client app we decided to use (there are several) was not set up for multi-coin support, so it was necessary to fork that into the ECC project:
https://github.com/project-ecc/electrum-ecc
To get early access to Electrum-ECC:
https://github.com/project-ecc/electrum-ecc/releases
submitted by smogm to ecc [link] [comments]

AERGO – THE HYBRIDIZED BLOCKCHAIN

AERGO – THE HYBRIDIZED BLOCKCHAIN
The benefits of blockchain technology have not gone unnoticed, resulting in many blockchain implementations existing today. Most of these use and operate on computer networks that are easy to join and participate in. These permissionless implementations are often known as “public blockchain protocols” (such as Bitcoin and Ethereum). However, the use of an existing blockchain comes with many problems for existing businesses, mainly due to the lack of control over its features and development. While private/permissioned blockchains aim to fulfil the promise of becoming “fit-for-purpose”, they entail immense costs in terms of infrastructure and forfeit the ability to evolve at the speed of open source.
The vast majority of both public and private implementations are in the early stages of their development (and currently use 3​rd generation technologies). Projects typically focus on one type of blockchain versus the other. As such, most are only used for simple proof-of-concept (“​PoC​”) test-cases. Despite many such projects, the evolution of the blockchain stack is still stagnating, due to difficulties with enterprise IT integration and a lack of developer-friendly and easy-to-use software tools. Many implementations also lack the enterprise grade capabilities that are critical to run real business applications in both private and public deployments. The technology behind blockchain needs to mature and become more accessible for it to become a widely used and deployed architecture. Additional services and capabilities are also needed for it to be a commonly used business platform.
What is public blockchain and private blockchain? Is blockchain meant to be privatized?

PUBLIC BLOCKCHAIN
A public blockchain is a blockchain network that is fully open and decentralized, where anyone can join and participate in the network if they follow the protocol of the public chain.
The network typically has an incentivizing mechanism to encourage more participants to join the network. Bitcoin is one of the largest public blockchain networks in production today, and provides the potential for maximum participation and increased participation results in more computer “nodes” with the network.
One of the drawbacks of existing public blockchains is the substantial amount of computational power that is necessary to maintain a distributed ledger at a large scale. More specifically, to achieve consensus, each node in a network must solve a complex, resource-intensive cryptographic problem (called proof-of-work (“​PoW​”)) to ensure all nodes are synchronised and trust is maintained.
This process is complex, slow and consumes vast amounts of energy (electricity).
Another disadvantage for particular users is the openness of many existing public blockchains, which provide little to no privacy for transactions (subject to pseudonymity). They also only support a weak notion of overall system level control as they are open to anyone to participate in the network.
These are important considerations for future enterprise use of blockchain.
However, despite the above, in a public blockchain, no one person, group or organisation controls the information which is on the blockchain; or the series of rules that underpin the protocol itself. No member can unilaterally change the protocols of the blockchain and the information contained within it. Users should be able to fully trust the public blockchain and therefore put their complete trust in a third party that uses the same blockchain.
In short, public blockchains can provide maximum trust but are slow and expensive to run. They can also be extremely difficult to upgrade, because they require consensus amongst a large group of participants, many of whom may have different (and even competing) interests. Further, their trusted status may be undermined by various factors, such as malicious activity (such as so-called “front-running” by miners); by concerted behavior (e.g. when mining power is concentrated in a small number of participants); or even legal complexities that arise from having transactions recorded and validated in numerous jurisdictions all at once.

PRIVATE BLOCKCHAIN
Private blockchain is a blockchain network with united openness and decentralized compared with a public blockchain, where authorization under specific rules is required for a new node to join the network.
A private blockchain network requires an invitation and must be validated by either the network starter or by a set of rules put in place by the network starter. Businesses that set up a private blockchain, will generally set up a ​permissioned network. This places restrictions on who is allowed to participate in the network, and in what transactions. Participants need to obtain an invitation or ​permission to join. The access control mechanism can vary: for example, existing participants could decide future entrants, a regulatory authority could issue licenses for participation or a consortium could make the decisions instead. Once an entity has joined the network, it will play a role in maintaining the blockchain in a decentralized manner.
Private blockchains can (with careful system level IT design) permit greater scalability in terms of transactional throughput.
In short, private blockchains provide improved privacy, maximum throughput and are potentially cheaper to run, however they lack the level of trust and network effects that are gained from the more widely deployed public blockchains.
A lot of businesses are experimenting with building their own private blockchains. A number of these initiatives (and associated consortia) are facing difficulties to get these private blockchains into real life production systems.
Some of the reasons for this are perhaps:
  1. Building proprietary private blockchain systems requires specialist IT, cloud and developer skills and know-how that only very few firms possess.
  2. Building these using an open source model - with the intention of using, enhancing and maintaining these longer term - is extremely challenging (and software development and maintenance is not typically a core-capability for these businesses).
  3. The two above factors can significantly increase the long-term costs of such systems.
Therefore, for companies looking to integrate blockchain technology into their business processes, very careful consideration needs to be placed on the (i) trust plus interoperability (public) need versus (ii) performance plus privacy (private) requirement.
This is a fundamental paradox when dealing with combined public and private blockchains.
Due to stringent security and compliance requirements, large companies have traditionally implemented their IT systems in private computer architectures (such as private internal clouds). For the same reasons, many of these firms are experimenting with private blockchains, and choosing not to use any form of public protocol.
A number of industry consortia (such as R3 and Hyperledger) - may be limiting their potential long-term value and usefulness - by perhaps only considering one type of blockchain architecture.
In fact, much of the innovation in blockchain is actually happening in the public protocol space. This is evidenced by the sheer level of new ideas, projects and services that have been fueled by the many large scale (primarily crypto-currency driven) blockchain projects. The majority of these projects do focus on direct dApp development but this also drives certain innovations in the underlying (primarily public) blockchains that run them.
We believe that truly transformative business benefits can be achieved if a hybrid approach to blockchain is used. This approach would help maximize the benefits (and reduce the drawbacks) of a combined public and private blockchain architecture. We see the benefit in having a business architecture that - uses a public blockchain to provide enterprise integrity, immutability and a trustless network environment, for data and value (asset) transactions - coupled with a private blockchain that helps enable regulatory compliant record-keeping, privacy and that is configured and optimized for the required enterprise level performance.
The key distinguishing features of the two forms of blockchain (i.e. public and private protocols) include the level of trust and control in each system. Trust and control often vary depending on the nature of the blockchain architecture and the software consensus algorithms being used. Often increases in control can result in a decrease in decentralized trust, and vice versa. Performance throughput is also becoming a serious issue for blockchain as deployments grow.
Public blockchains, like Bitcoin as mentioned, provide the potential for maximum participation and increased participation results in more computer “nodes” within the network. A larger network of nodes running a blockchain consensus algorithm increases decentralized trust. However, control can become a serious issue in this instance, if an entity gains a majority position over these computer resources. Large blockchain networks running current generation protocols and Proof-of-Work consensus algorithms are very inefficient. They draw a huge amount of energy to run the nodes and validate new transactions. The distribution of transactions is also very slow (especially for business-critical actions).
In private blockchains (such as Hyperledger Fabric) there is much more stringent control of which parties (nodes) are part of the specific blockchain network. Throughput can be increased by using state-of-the-art computers, memory and solid-state disks; coupled with well-designed network interfaces between the nodes. However, this often results in lesser decentralized trust as the networks tend to be much smaller in size than in public protocols. Newer and more innovative consensus algorithms are required. (The figure depicts the two models).

Permissionless (Public) vs. Permissioned (Private) Blockchains
The decision on whether a business chooses a public or private blockchain will depend on a few key considerations.
Such as a careful balancing act between
(I) the need to maximize trust in the transactions
(II) control over the system and finally
(III) overall performance throughput
AERGO PLATFORM (Bridging the gap between public blockchain and private blockchain)
AERGO seeks to leverage and extend both public and private blockchains, supported by modern cloud architectures.
Just like the development, evolution and adoption of “hybrid cloud” over the past 10 years, AERGO intends to facilitate the creation of hybrid blockchain based products and business models. AERGO proposes to use state-of-the-art technology that is implemented and manifested as a simple to use practical blockchain protocol.
This protocol is intended to be designed so that it can be used in any combination of (i) a public, (ii) a private or (iii) a combined public plus private blockchain architecture configuration. This is depicted in Figure below. AERGO aims to become the de facto enterprise blockchain. One that bridges the gap between both public and private networks. A platform that uses core blockchain technology and deployment blueprints that have already been proven in real-life in-production systems across the world by Blocko (a leading blockchain technology and enterprise IT integration-services company with operations in the UK, South Korea and Hong Kong. COINSTACK-based blockchain systems have already been deployed to 25 million users in over 20 in-production systems).

AERGO bridges the Public and Private blockchain worlds for Enterprise IT
AERGO intends to combine the practicality and innovation of public blockchains, with the performance and security provided by private blockchains.
Just as with cloud computing, we hope to develop the technology to enable companies to develop and run their (dApp) applications on a secure public infrastructure. When needed, these companies will be able to easily and seamlessly migrate some (or even all) of these applications to a more high-performance private blockchain.
All of this and without losing any of the benefits of their previous public blockchain model implementation.
To enable such a comprehensive hybrid blockchain architecture, innovative technologies and a novel data bridging framework (proxy) are required to make these different types of system work together. The bridging proxy would allow bi-directional communication between multiple public and private blockchain networks.
The ability to develop, compile and embed smart contracts into such a diverse architecture will also be required. This also needs to be supported by a very high-performance and efficient virtual machine engine for future and more comprehensive smart contract development.
This principle is depicted in the illustrative diagram below.

AERGO ecosystem network illustrating public and each private chain bridged
CONCLUSION
AERGO aims to advance enterprise blockchain, by opening up a new era of mass market usage of blockchain. An era where businesses can benefit from both public and private blockchain innovation, while focusing on building, deploying and managing new services. In short, the AERGO Project aims to provide:
  1. Advanced, yet friendly and easy to use technology for developers and contractors.
  2. A secure and fast public and private blockchain cloud architecture for businesses.
  3. An open ecosystem for third parties and businesses to connect and engage with.
submitted by Joshuaaniekwe to Aergo_Official [link] [comments]

Lore v2 QT on Raspberry Pi

Hello,
 
To follow up to mindphuk's excellent piece on building the headless client on Raspberry Pi (https://www.reddit.com/blackcoin/comments/6gkjrw/wip_blackpi_a_stake_device_based_on_raspberry/), I thought if anyone was interested I'd show you how to get the full QT version running on the Pi on the Jessie with Pixel desktop. This works and has been soak tested for several days now on a standard Raspberry Pi 3. I have since added some coins and it stakes a handful of times a day.
 
Running staking Lore clients paves the way for some of the future use cases of BLK utilising the Bitcoin 0.12 (and newer) core tech, including colored coins. So I'm going to leave this one going indefinitely to kickstart the number of Lore clients staking. It's certainly not mandatory but it will be good in the longer term to have a nice distribution of Lore staking clients.
 
The cross-compile which lets you create binaries for multiple platforms didn't work for the QT version on the Pi, so there is more to do than just running the binary unfortunately, as below. There are folks working on some much cleaner solutions than this for the Pi, with a custom front end, and where you won't have to do any mucking about. That is coming soon. In the meantime, if you enjoy a fiddle with such things, here's how to get this QT client working on your Pi.
 
These instructions assume you are starting from scratch with a completely blank OS.
 
Download Jessie with Pixel from: http://downloads.raspberrypi.org/raspbian/images/raspbian-2017-07-05/2017-07-05-raspbian-jessie.zip
 
Note they have since (August 2017) released a version called 'Stretch' which does not work with this guide. I'll see if I can come up with something new for that at some point and link to it here when I have. In the meantime the guide should work with the Jessie image above.
 
Unzip the file and extract the .img file to burn it onto Fresh SD card to boot from (to be safe, use 16GB or larger), using a tool like win32diskimager or Etcher.
 
Assuming you have keyboard/mouse and monitor plugged into your pi, boot it up and the Jessie Desktop will show.
 
Before we do anything else, you should increase the default swap size on the pi, as compiling certain libraries can exhaust the RAM and get stuck otherwise. To do this, launch a Terminal window and type:
 
sudo nano /etc/dphys-swapfile 
 
and Change the CONF_SWAPSIZE from 100 to:
 
CONF_SWAPSIZE=1024 
 
Exit nano with control + x to write out the file.
 
Then, run the following to restart the swapfile manager:
 
sudo /etc/init.d/dphys-swapfile stop sudo /etc/init.d/dphys-swapfile start 
 
Now, launch the browser and download the Lore 2.12 binaries for ARM here: https://mega.nz/#!k2InxZhb!iaLhUPreA7LZqZ-Az-0StRBUshSJ82XjldPsvhGBBH4 (Version with fee fix from 6 September 2017)
 
(If you prefer to compile it yourself instead, it is possible by following the instructions in the original article by Mindphuk just taking into account this is the newer version of the Lore client than when that was written (https://github.com/janko33bd/bitcoin/releases) and the versions of Boost and the Berkeley DB need to be the same as below.)
 
Double click the zip and extract the Lore binary files. Yes, at the moment they are all called 'bitcoin', not 'blackcoin' or 'Lore' - this is because the code derives from a recent bitcoin core implementation so this has not yet been updated. You can place these wherever you like.
 
In the Terminal window, change directory to where you put the binaries, e.g.:
 
cd Downloads/lore-raspberrypi-armv7-jessie-pixel chmod +x * 
 
That marks the binaries as executable.
 
Now, we need the Boost libraries installed for any of the Lore binaries to work. The project was done with Boost 1.62.0. Unfortunately the Jessie repository only goes up to 1.55, so we need to download and build 1.62 manually on the device.
wget https://sourceforge.net/projects/boost/files/boost/1.62.0/boost_1_62_0.tar.gz/download tar -xvzf download cd boost_1_62_0 sudo ./bootstrap.sh sudo ./b2 install 
 
(This will take almost 2 hours. Have a nice cup of tea and a sit down.)
 
When I came to run the binaries, I found they couldn't find Boost. Running this command fixes that:
sudo ldconfig 
 
Now we are going to install the packages which aren't already included in the default OS installation which the binaries need in order to run:
sudo apt-get install qrencode libprotobuf-dev libevent-pthreads-2.0-5 
 
Now we need to install the Berkeley Database version 6.2.23. This is the version Lore v2 uses. Bitcoin still uses 4.8 which is 10 years old! This doesn't take too long.
wget http://download.oracle.com/berkeley-db/db-6.2.23.tar.gz tar -xvzf db-6.2.23.tar.gz cd db-6.2.23/build_unix ../dist/configure --prefix=/usr --enable-compat185 --enable-dbm --disable-static --enable-cxx 
 
I find this next section of the Berkeley instructions worked better just switching to root, which can be fudged by running sudo su before the rest:
sudo su make make docdir=/usshare/doc/db-6.2.23 install chown -v -R root:root /usbin/db_* /usinclude/db{,_185,_cxx}.h /uslib/libdb*.{so,la} /usshare/doc/db-6.2.23 
 
Now we're going to go up a couple of directories to where the binaries were:
cd ../.. 
 
Then run the client!
./bitcoin-qt 
 
And there you have it. Should hopefully end up looking a bit like this: http://imgur.com/a/eEHGa
 
Using the Bootstrap can save a while syncing. Download it at: https://www.reddit.com/blackcoin/comments/6b3imq/blackcoin_bootstrapdat_up_to_block_1631800
 
Place the bootstrap.dat file into the ~/.lore directory.
 
Run ./bitcoin-qt again, it will say 'Importing Blocks' rather than 'Synchronising with Network'. My pi sync'ed fully in about 5-6 hours.
 
If you want peace of mind that Lore will always start on bootup into the Jessie w/Pixel desktop (i.e. after a power cycle), then you need to create a .desktop file in the following place.
sudo nano ~/.config/autostart/Lore.desktop 
 
And in it, enter the following (tailoring the Exec line below to the whereabouts of your bitcoin-qt file):
[Desktop Entry] Name=Blackcoin Lore Comment=Mining without the waste Exec=/home/pi/Downloads/lore-raspberrypi-armv7-jessie-pixel/bitcoin-qt Type=Application Encoding=UTF-8 Terminal=false Categories=None; 
 
Power usage and payback time
 
After a good while leaving it going by itself, the CPU load averages got down to almost zero, all of the time. Idling, the Pi uses a bit less than 3 watts. This means it would take two weeks to use one 1Kw/h of electricity.
 
If you pay e.g. 12.5 cents a unit, that's what you'd expect this to cost to run in a fortnight. That's around $0.25 a month or $3 a year. Green and cheap and helping to secure the BLK network. I paid for the year's worth of electricity in 2 days staking with 25k BLK. Makes mining look silly, huh? ;)
 
Securing your Pi
 
With staking, your wallet needs to be unlocked and as such, the keys to your wallet are on the device. In a clean and newly installed environment as described above, and if you don't allow others to use your device and there is no other software or nasties running on it, there is no real cause for concern. However, there are some basic security precautions you can take.
 
Firstly, if you have enabled SSH and are playing with your pi across your LAN (or worse, the Internet), you should immediately change the password for the default 'pi' user (which is preconfigured to be 'raspberry'). Simply log in as normal, then type:
 
passwd 
 
You'll be prompted to enter the old and the new passwords.
 
Security by default
 
Your Pi is likely, by default, to not be exposed to incoming connections from the outside world because your router is likely generating a private address range for your LAN (192.168.x.x or 10.0.x.x or 172.x.x.x) which means all incoming connections are effectively blocked at the router anyway unless you set up a 'port forward' record to allow packets arriving on certain ports to be forwarded to a specific internal IP address.
 
As for accessing your Pi across the internet, if you have set up a port forward, this likely has security ramifications. Even basic old fashioned protocols have proven in recent times to have uncaught flaws, so it's always advisable to lock down your device as much as possible, and even if you only plan to access the Pi over your LAN, install a firewall to configure this. I used one called ufw, because it's literally an uncomplicated firewall.
 
sudo apt-get install ufw sudo ufw allow from 192.168.0.0/16 to any port 22 sudo ufw --force enable 
 
This allows just port 22 (SSH) to be open on the Pi to any device on my LAN's subnet (192.168.0.x). You can change the above to a single IP address if paranoid, or add several lines, if you want to lock it down to your LAN and a specific external static IP address (e.g. a VPN service you use). To find out what subnet your router uses, just type:
 
ifconfig 
 
and you'll see on the interface you are using (either hard wired or wifi) the 192.168 or 10. or 172. prefix. Change the above rule so it matches the first two octets correctly (e.g. 10.0.0.0/16 if you're on a 10.0. address).
 
You may already use VNC to access your Pi's desktop across your LAN, this uses port 5900. Add a line like above to lock it down to an internal address. It's not a good idea to expose this port to the wider world because those connections are not encrypted and potentially could be subjected to a MITM attack.
 
You can query the status of the firewall like this:
ufw status 
 
And of course, try connecting remotely once you change the rules to see what works. You should consult the official documentation for further options: https://help.ubuntu.com/community/UFW
 
Back up & Recovery
 
There are again many ways to tackle this so I'll just speak about my basic precautions in this regard. Don't take it as a be-all-and-end-all!
 
The wallet.dat file is the key file (literally) containing all the private/public keys and transactions. This can be found in:
 
~/.lore 
 
You can navigate there using Jessie w/Pixel's own file manager or in a terminal window (cd ~/.lore). You can copy this file or, if you'd rather keep a plain text file of all your public and private keys, use the 'dumpwallet' command in the console. In Lore, go to Help > Debug Window > Console and type 'dumpwallet myfilename' where myfilename is the file you want it to spit out with all your keys in it. This file will end up in the same place you launch bitcoin-qt from.
 
The instructions earlier on, when running Lore for the first time intentionally left out encrypting your wallet.dat file because in order for the wallet to stake upon startup, it needs to have a decrypted key already. This isn't perfect, but after a power cycle, it would never stake unless you left it decrypted. So the best practice here is as soon as the wallet.dat file has left your device, i.e. you copy it to a USB stick for example, put it in an encrypted folder or drive (or both).
 
In Windows, one way is to use Bitlocker drive encryption for the entire drive. You should follow the instructions here to encrypt your flash drive before your wallet.dat is on there, and don't forget the password!!
http://infosec.nmsu.edu/instructions-guides/how-to-enable-bitlocker-to-go-for-external-hard-drives-and-usb-flash-drives/
 
On the Mac, I use a software package called Concealer to encrypt files I store on the Mac itself: http://www.belightsoft.com/products/conceale   There are almost certainly free packages with similar functionality, I have just used that one for years.
 
Either way, if you want to just make sure your USB drive is encrypted, you can do so in one-click in Finder before you put the sensitive files on it: http://lifehacker.com/encrypt-a-usb-stick-in-finder-with-a-click-1594798016
 
Note that these disk encryption methods may mean having to access the USB stick on a PC or Mac in order to retrieve the files in the event of a disaster. Be aware this may mean exposing them to more security issues if your computer is in any way compromised or someone nefarious has access to your computer. There are more 'manual' ways of backing up and recovering, such as literally writing down private/public key pairs which this guide doesn't go into, but may suit you better if paranoid about your setup.
 
Recovery
 
The wallet.dat file has everything in it you need to recover your wallet, or if you used 'dumpwallet', the file you saved out has all the keys.
 
Wallet.dat method: Install Lore as normal then replace any auto-generated wallet.dat in ~/.lore directory with your backup. If a lot of time has elapsed and many transactions have occurred since your backup, launch lore with:
./bitcoin-qt -rescan 
 
And if that doesn't do the job, do a full reindex of the blockchain:
 
./bitcoin-qt -reindex 
 
If you used the dumpwallet command, install Lore then place the file containing all the keys that you saved out in the same directory as bitcoin-qt. In Lore, go to Help > Debug Window > Console and type 'importwallet myfilename' where myfilename is that file containing all the keys. The wallet should automatically rescan for transactions at that point and you should be good to go.
 
There are a million ways to do effective security and disaster recovery, but I hope this shows you a couple of basic precautionary ways. There are discussions about better ways to stake without compromising too much security which are happening all the time and developments in this regard will happen in time.
 
In the meantime, feel free to comment with your best practices.
 
submitted by patcrypt to blackcoin [link] [comments]

Groestlcoin Christmas Release!

Groestlcoin Dec 2018 Christmas Release Update

As per usual the 3 months has been all hand-on-deck, helping to bring further adoption utilities to Groestlcoin. The markets have been red but as always that doesn't stop the show from going on with regards to the development since the last release update on 24th September. Here's a recap of what has happened so far:

Recap:

What’s New Today?

Groestlcoin on Trezor Model T

As of the latest version of the Trezor Model T firmware, Groestlcoin is now officially supported! The Trezor Model T is the next-generation cryptocurrency hardware wallet, designed to be your universal vault for all of your digital assets. Store and encrypt your coins, passwords and other digital keys with confidence. The Trezor Model T now supports over 500 cryptocurrencies.

Blockbook MainNet & TestNet Block Explorer

Blockbook is an open-source Groestlcoin blockchain explorer with complete REST and websocket APIs that can be used for writing web wallets and other apps that need more advanced blockchain queries than provided by groestlcoind RPC.
Blockbook REST API provides you with a convenient, powerful and simple way to read data from the groestlcoin network and with it, build your own services.

Features:

Blockbook is available via https://blockbook.groestlcoin.org/ Testnet: https://blockbook-test.groestlcoin.org/ Source code: https://github.com/Groestlcoin/blockbook

Edge Wallet

Groestlcoin has been added to the Edge wallet for Android and iOS. Edge wallet is secure, private and intuitive. By including support for ShapeShift, Simplex and Changelly, Edge allows you to seamlessly shift between digital currencies, anywhere with an internet connection.

Features:

Android: https://play.google.com/store/apps/details?id=co.edgesecure.app
iOS: https://itunes.apple.com/us/app/edge-bitcoin-wallet/id1344400091?mt=8
Direct Android: https://edge.app/app

CoinID Wallet

We are excited to announce that Groestlcoin has been added to CoinID! With integrated cold and hot wallet support, and a host of other unique wallet features, CoinID can easily become your go-to wallet for storing Groestlcoin. More details can be found here: https://coinid.org/s/groestlcoin-wallet-overview.pdf

Features

Android: https://play.google.com/store/apps/details?id=org.coinid.wallet.grs
iOS: https://itunes.apple.com/us/app/grs-wallet-for-coinid/id1439638550

Groestlcoin Sentinel - Windows Released

Groestlcoin Sentinel is the easiest and fastest way to track balances of your Groestlcoin addresses.
Features
You can download it using the links below.
Download the Windows Wallet (64 bit) here: https://github.com/Groestlcoin/Groestlcoin-Sentinel-Windows/releases/download/1.0/SentinelSetup_x64.msi
Download the Windows Wallet (32 bit) here: https://github.com/Groestlcoin/Groestlcoin-Sentinel-Windows/releases/download/1.0/SentinelSetup_x86.msi
Source code: https://github.com/Groestlcoin/Groestlcoin-Sentinel-Windows/

Groestlcoin BIP39 Tool 0.3.9 Update

The Groestlcoin BIP39 tool is an open-source web tool for converting BIP39 mnemonic codes to addresses and private keys. This enables the greatest security against third-party wallets potentially disappearing – You’ll still have access to your funds thanks to this tool.
What’s New
Download the Groestlcoin BIP39 tool here: https://github.com/Groestlcoin/bip39/archive/master.zip
Source code: https://github.com/groestlcoin/bip39
Or use hosted version: https://groestlcoin.org/bip39/

Electrum-GRS 3.2.3 Update

Electrum-GRS is a lightweight "thin client" Groestlcoin wallet Windows, MacOS and Linux based on a client-server protocol. Its main advantages over the original Groestlcoin client include support for multi-signature wallets and not requiring the download of the entire block chain.
What’s New

Electrum + Android Version 3.2.3:

Android: https://play.google.com/store/apps/details?id=org.groestlcoin.electrumgrs
Windows & OSX: https://github.com/Groestlcoin/electrum-grs/releases/
Linux:
sudo apt-get install python3-setuptools python3-pyqt5 python3-pip python3-dev libssl-dev sudo pip3 install groestlcoin_hash sudo pip3 install https://github.com/Groestlcoin/electrum-grs/releases/download/v3.2.3/Electrum-grs-3.2.3.tar.gz electrum-grs
GitHub Source server: https://github.com/Groestlcoin/electrumx-grs
Github Source server installer: https://github.com/Groestlcoin/electrumx-grs-installer
Github Source client: https://github.com/Groestlcoin/electrum-grs

Groestlcoin ivendPay Integration

ivendPay and Groestlcoin cryptocurrency have announced the start of integration.
IT company ivendPay, the developer of a universal multicurrency payment module for automatic and retail trade, intends to integrate Groestlcoin cryptocurrency — one of the oldest and the most reputable Bitcoin forks into the payment system. Groestlcoin is characterized by instant transactions with almost zero commission and is optimal for mass retail trade where micropayments are mostly used.
According to Sergey Danilov, founder and CEO of ivendPay, Groestlcoin will become the 11th cryptocurrency integrated into the payment module. The first working vending machines for the sale of coffee, snacks and souvenirs, equipped with ivendPay modules, served the visitors of the CryptoEvent RIW exhibition at VDNKh in Moscow and accepted Bitcoin, Go Byte, Dash, Bitcoin Cash, Ethereum, Ethereum Classic, Zcash, Bitcoin Gold, Dogecoin and Emercoin. ivendPay terminals are designed and patented to accept payments in electronic money, cryptocurrencies and cash when connecting the corresponding cash terminal. Payment for the purchase takes a few seconds, the choice of the payment currency occurs at the time of placing the order on the screen, the payment is made by QR-code through the cryptocurrency wallet on the smartphone.
The interest in equipping vending machines with ivendPay terminals has already been shown by the companies of Malaysia and Israel, where first test networks would be installed. ivendPay compiles a waiting list for vending networks interested in buying terminals and searches for an investor to launch industrial production. According to Sergey Danilov, the universal payment terminal ivendPay for the vending machine will cost about $500. The founder of ivendPay has welcomed the appearance of Groestlcoin among integrated cryptocurrencies, as it is another step towards the realization of the basic idea of digital money - free and cross-border access to goods and services for everybody.
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

How to synchronize QT WALLET with network Windows How To Mine 1 Bitcoin in 10 Minutes - Blockchain BTC Miner ... Syncing bitconnect wallet with network. Bitconnect wallet (not sync) *fix*. How To Quickly Sync A Wallet with Bootstrap (Litecoin/Bitcoin) Syncing and Depositing - Zap Lightning Network Wallet Tutorial (Video 1)

Technically speaking, synchronizing is the process of downloading and verifying all previous Bitcoin transactions on the network. For some Bitcoin clients to calculate the spendable balance of your Bitcoin wallet and make new transactions, it needs to be aware of all previous transactions. This step can be resource intensive and requires sufficient bandwidth and storage to accommodate the full ... However, if you have still problem, you can find out the possible issues that can affect the Bitcoin wallet synchronizing. First of all you need to check your broadband connection and internet connection issues. Maybe your firewall or antivirus software is blocking the wallet from synchronizing. As your wallet need to be connected with network to download the Blockchain. So, here you need to ... Can Bitcoin scale to become a major payment network? Are bitcoin transactions anonymous? Why Do Bitcoin Transactions Take 10 Minutes? How Much Will The Transaction Free be for Bitcoin Transfers? What if I Receive a Bitcoin and my Computer is Powered Off? What if I Receive a Bitcoin and my Computer is Powered Off? What does “synchronizing” in bitcoin mean and why does it take so long? What ... Synchronizing Bitcoin Wallets – What Is Bitcoin Synchronization? Bitcoin’s main difference from other virtual money systems is the anonymity of transactions between wallets. Additionally, a decentralized network blockchain architecture provides a high level of data protection. Bitcoin synchronizing with network. Noch Anfang April notierte der Bitcoin knapp über einem Wert von 6.000 USD. Kein Wunder, dass bitcoin als gehalt die momentane Dynamik die Krypto-Welt in einen aufgeregten Zustand versetzt. Der Run mag nicht das Niveau aus dem eindrucksvollen Bullenmarkt in 2017 erreichen. Dennoch sind sich viele Bitcoin-Jünger einig, dass ein dash kryptowährung bewertung ...

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How to synchronize QT WALLET with network Windows

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