BitLicense: Das Bitcoin-Regulierungsmodell in den USA ...

Electrum - Simply the best thin Bitcoin client

The best, cutting edge thin Bitcoin wallet.
[link]

Free Bitcoin Icons (MIT License)

Free Bitcoin Icons (MIT License) submitted by Christelleorangee to Bitcoin [link] [comments]

Bitcoin Association is pleased to provide the "Open BSV License." A modified version of the MIT license, available for use only on BSV.

Bitcoin Association is pleased to provide the submitted by btcnewsupdates to bitcoincashSV [link] [comments]

#crypto #cryptonews #bitcoin #Free Bitcoin Icons (MIT License)

#crypto #cryptonews #bitcoin #Free Bitcoin Icons (MIT License) submitted by nrposter to Cryptoandme [link] [comments]

Bitcoin Core devs discussing possibility to change MIT license to forbid other forks of using the word 'Bitcoin'

submitted by mc_kingjames to CryptoCurrency [link] [comments]

Mercury FX XRP Success - Coinbase Acquires Blockspring - MIT Creating Their Own Bitcoin - Thailand Stock Exchange Crypto License - Wyoming Crypto Bill - ErisX Joseph Lubin

Mercury FX XRP Success - Coinbase Acquires Blockspring - MIT Creating Their Own Bitcoin - Thailand Stock Exchange Crypto License - Wyoming Crypto Bill - ErisX Joseph Lubin submitted by PrimeCoinz to CryptoCurrency [link] [comments]

Bitcoin Core devs discussing possibility to change MIT license to forbid other forks of using the word 'Bitcoin'

submitted by 6b88c to linuxunplugged [link] [comments]

Why was Bitcoin licensed under MIT not GPL like ethereum? /r/btc

Why was Bitcoin licensed under MIT not GPL like ethereum? /btc submitted by ABitcoinAllBot to BitcoinAll [link] [comments]

Why was Bitcoin licensed under MIT not GPL like ethereum? /r/btc

Why was Bitcoin licensed under MIT not GPL like ethereum? /btc submitted by cryptoallbot to cryptoall [link] [comments]

Bitcoin's MIT license, the reason why there will never be any legal grounds against forks of Bitcoin.

Bitcoin's MIT license, the reason why there will never be any legal grounds against forks of Bitcoin. submitted by arcral to AlternativeCoin [link] [comments]

Bitcoin's MIT license, the reason why there will never be any legal grounds against forks of Bitcoin. /r/btc

Bitcoin's MIT license, the reason why there will never be any legal grounds against forks of Bitcoin. /btc submitted by HiIAMCaptainObvious to BitcoinAll [link] [comments]

[uncensored-r/CryptoCurrency] Bitcoin Core devs discussing possibility to change MIT license to forbid other forks of using the...

The following post by mc_kingjames is being replicated because some comments within the post(but not the post itself) have been openly removed.
The original post can be found(in censored form) at this link:
np.reddit.com/ CryptoCurrency/comments/7xb36g
The original post's content was as follows:
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2018-February/015733.html
submitted by censorship_notifier to noncensored_bitcoin [link] [comments]

Bitcoin Core devs discussing possibility to change MIT license to forbid other forks of using the word 'Bitcoin'

submitted by unitedstatian to ethereum [link] [comments]

Bitcoin Core devs discussing possibility to change MIT license to forbid other forks of using the word 'Bitcoin'

submitted by HiIAMCaptainObvious to BitcoinAll [link] [comments]

New LN wallet "ln-pay" integrated with Firefox with protocol handlers, only 532kb on disk, fastpay with whitelisted pubkeys, MIT licensed. (by @alexbosworth) /r/Bitcoin

New LN wallet submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Hey BCash, BU and BGold aka Bitmain aka BitcoinABC: Using code forked from the Bitcoin Project requires that you credit the original authors under the MIT license. Don't be afraid of being a fork ;) /r/Bitcoin

Hey BCash, BU and BGold aka Bitmain aka BitcoinABC: Using code forked from the Bitcoin Project requires that you credit the original authors under the MIT license. Don't be afraid of being a fork ;) /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

1 day left for this game-changing project

1 day left for this game-changing project

Integration broker for P2P apps on BCH Chain
Alright guys, I apologize for all the shilling on this sub for this project, but it was suggested by the admin.
This flipstarter has 1 day left before it expires, and needs one last push to get it through.
CashSQL: the integration broker helps you get data out of (and put data into) the BCH chain through a nice and easy SQL database of your choosing. It's designed to help build P2P apps rapidly. Enveloping data transactions inside layer-1 BCH is tough. If apps could rely on a simple SQL DB, with community developed data-transformers, life is easier for all apps using those layer-2 protocols. This means more devs, more apps and more activity on BCH.
If this project makes sense to you, consider a PLEDGE NOW!

CashSQL Vision

DELIVERABLE SUMMARY

  • Full Blockchain Database: the entire BCH blockchain available as SQL database. Useful for chainalysis, data analytics, etc. This database can be optionally deployed by users.
  • Light-weight Database: lean and mean database for tracking user-specific blockchain data. Most applications will only need to use this.
  • DBMS support: SQL Server, MySQL/MariaDB and SQLite (has plug-n-play design, others can be added later).
  • Mempool Integration: JSON/XML/Web-Socket API for real-time event data.
  • Simplified Schema Design: blockchain data is extracted and processed into higher-level data abstractions that developers can easily use. For example, account balances, debits and credits for BCH and SLP addresses, confirmations for transactions, etc.
  • Extensible Schema: users can extend scheme with custom columns and tables that suit their applications.
  • Transformable Data: users can plug-n-play custom data-transformations that extract meaningful high-level data from compressed blockchain data.
  • Real-Time Capability: databases are maintained in real-time with minimal locking.
  • Send Capability: includes “outbound” tables for users to push out transactions onto the network. Includes send receipts and history tables.
  • High-performance: expertly-tuned database design for large and small deployments.
  • Enterprise-ready: Written in latest C#/.NET, a popular enterprise-class platform.
  • Cross-Platform: Target platform is .NET 5 which runs on Windows, Linux, macOS and Unix.
  • Simple GUI: an explorer-like GUI is shipped with the backend based on HTML5.
  • Open Source: Fully open-sourced under MIT license.
A prototype is currently available at http://blockchainsql.io.

WHO WE ARE

Sphere 10 Software (ABN: 39600596316) is an Australian based LLC led by Director and Chief Software Architect, Herman Schoenfeld. Herman has been involved in cryptocurrency since 2011, and was the "retrospective co-founder" of the PascalCoin cryptocurrency. Herman has appeared in commercial programming aired on Bloomberg and Fox Business News as well as radio broadcasts in the NYC area. Herman has been a long-time supporter of Bitcoin Cash and has always promoted it as the true, original Bitcoin as laid out in the Satoshi whitepaper. However, due to certain personalities dominant in BCH, Herman was de-motivated from participating until now. Since the BSV split and with the prospect of BCHN taking node leadership in November, Herman is very bullish on BCH and motivated to support BCH into the bright future and imminent explosive growth it was destined for. Sphere 10 Software will allocate 2 developers to work on CashSQL (one of them Herman). All the funds from this fund-raiser will be used for paying the time and material of development.


https://preview.redd.it/gy7wn4olw8u51.png?width=245&format=png&auto=webp&s=9189d2319f2e1fdd5e2567865e8610c4cbbb729a
submitted by HermanSchoenfeld to btc [link] [comments]

Mainnet project: an important change. If you are a donor, please read.

Hi everybody.
It has been one week since the mainnet project got the funding and I have an important update to make.
A little bit about the progress: I've found a wonderful developer, who is helping with the library, so it is starting to take some shape. I'm ironing out our REST API, got some useful feedback, continuing to do so. About 0.17% of the total funding spent so far.
The important update though is that I have decided to take the development and spending private, instead of public. Before I explain what that means and why, I understand that it might upset some donors. So, if you have pledged any amount and disagree with my change for any reason - please contact me (DM, or [email protected]) and I'll refund your pledge completely, no questions asked.
(Please sign any message using the address that you used to prove that you sent the funds, see the list of donors here to find your pledge and the link the the funding donation to find which address you sent from).
If more than 50% of pledges ask for money back, I'll just return everything to everybody in full and we'll consider the project cancelled. At that point anyone willing to take on the project (via a new Flipstarter or something), I'll donate the domain to them. Everything that is done so far is MIT licensed, so anyone is free to take it at any moment.
Let the market decide!
I've got to tell you that I'm a bit disappointed with our progress so far. I expected a lot of people willing to earn some money, but I've got only 4 relevant developers, 3 of them passed a very simple test, only one is actually doing anything.
This was not expected by me, when I had promised to work publicly and with BCH developers.
Another problem is that I have a certain vision that I described in the project description. In addition to that vision there is also a lot of experience talking to read.cash users. A lot of them are in countries with very bad Internet (2G, few kilobytes per second), using very old Android phones (10+ years, the size of an iPhone 4 and the speed half of that of iPhone 4).. And I also really hope that someday we will have 100MB blocks, 1GB, 1TB blocks. But now I'm tied in arguments with BCH developers who argue that many current solutions are good enough already and we don't need to change them - just build on top of a few convoluted and complex protocols, just download a block when needed (again, Africa, 2G, 100MB blocks), just download 640,000 block headers, listen to the whole mempool (with 1TB block we'll have 1TB mempool) - it's fine, blocks are tiny... Just send a few queries (now)... Just download a mempool fully.
(To those of you that know what this is about, please don't name names, I'm not here to play the blame game, everybody is entitled to their own opinions. It's fine.)
If your wallet becomes too big - create a new one. It's fine.
Sidenote: my read.cash wallet that gets the fees takes a few hours to open now, and it's barely 9 months old! I find current solutions unacceptable, I want my wallet to open up immediately and handle 100MB blocks as well as 60KB blocks.
I don't want to develop for tiny blocks or tiny wallets that need to be changed every few months.. I want huge blocks! I don't want mainnet to be as brittle as to break at the first sight of success.
A few of these discussions got me really tired and I have no leverage on these guys. They have money now, they have their vision, I have mine, described on the site, they don't want to do it my way. I didn't collect the funds to do it their way.
Yet I have made a commitment to work with them.
This is very tiresome. I feel like I've got myself into a trap - I have to work with these people, they don't want to work on my stuff.
This is just stupid.
One more thing is that now that I have Slack - I'm caught in endless private discussions of people trying to sell me their vision of how stuff should be done or questions about me or read.cash... I didn't sign up for that, I barely have any time to do the work, I don't have time for this, sorry.
Change #1: Private development
Having said that, I'm moving the project to private development.
Frankly, all I care about is to get this project done. I added an additional burden on myself to be do the public development. And it's tiresome.
The plan would be to hire some outside developers, using regular contracts, so that they don't have THEIR ideas on how to do the project and they'll just do what I described.
I think everybody cares about the end result - library working, document being written, etc...
Change #2: Private spending
Hired developers also means salaries. When people (in the real world) know salaries of other people, it leads to conflicts. I went through this experiment (public salaries) once in my life, I won't go through that again. Even people knowing your budget become a problem, since they start to bargain with you. (Again, we're talking about outside developers, they are not interested in BCH success, they are interested in getting as much money as possible)
By private spending I mean that I'll post periodically how much is done and how much funds is approximately left, but no details on who got what for what. Right now there's 99.83% funds left.
Some of you might see it as a money grab or something else - I can't blame you, but I'd rather see this project cancelled by market forces than drown in endless fights about why we should do exactly nothing or their idea, hope for small blocks and use what we have no matter how convoluted or hard it is, or why somebody's hourly rate should be bigger than that guy's.
Will this lead to everyone cancelling their donations? It sure could! It's voluntary funding after all, I can't force anyone to love what I do or how I do it.
If you donated and want a refund to your original address - just ping me.
When this post is 48 hours old, if more than 50% pledges remain, the project will move on as described above. If 50%+ cancels - everybody gets refunds to their original addresses.
submitted by readcash to btc [link] [comments]

This November...

Let's set aside the tickename issue for a second and think as scientists about the upcoming experiment. Assuming there will be a split, I think it's going to be interesting. (If the split is somehow avoided, then all of the following makes no sense, of course)
I frankly think the experiment of "hashrate-funded centrally-developed Bitcoin Cash" vs "hodler-funded multi-team-developed Bitcoin Cash" is very interesting. I don't mean "centrally-developed" as an offence here, it's just a fact - ABC will be developing it.
Before you start throwing in tomatos, let's think about it.
We all have front-row seats - each gets equal amount of both coins, so either coin wins - you have your cut.
It might even be that BOTH coins will be winners, since unlike the BSV situation, this is going to be probably developed under MIT license, so either side can copy code from other side. (Unless, of course, ABC goes BSV-way and protects their code with a restrictive license, while the other side will be using MIT/BSD licenses for sure)
Let's consider both sides' pros and cons.

ABC side

I don't really like IFP, but I think what Amaury did was pretty clever and worth considering. With this plan he gets to control his coin fully and impose any rules he sees as best for his coin, be it drift correction, 6-month releases or whatever else. He believes in his power to make this coin the best, so let's see if he can.
[+] Corporations are often pretty efficient at what they do. Usually, with capitalism and democracy they will perfect their game like no one, because of competition.
[-] But this won't be exactly like capitalism, more like socialism, because ABC/Amaury will get paid no matter their performance. They will always get 8%. That makes people lazy. Why bother if you get your salary anyway?
[+] ABC has a track record of 3 years and BCH didn't die, which gives them some credit that they could do it.
[+] Amaury and ABC will get paid in their own coin, so the more valuable it is, the richer they get. (Unless they sell for USD immediately) Also, they will get close to $8 million in funding in first year alone (at the current price), which would allow him to hire, well, best of the best in their class (cryptographers, developers, etc...). Amaury knows that and he's right - developers are freaking expensive ($100,000+/year). (Well, again, assuming Amaury will be hiring...)
[-] They don't have to listen to the community, so they have no force feedback if what they do is of any value or is it a useless distraction.

BCHN + others

[+] Hodler-funded means that you don't get paid unless you promise to deliver useful value and have proven to provide value in the past. So you have to perfect your game always - that's much closer to capitalism.
[-] Very hard to raise funds. Amaury will get $8m/year while BCHN and other nodes barely managed to collect $100-200K, probably for the next year or so. Hodlers don't want to give away their money too much, because it might 10x or 20x in very short amount of time.
[+] If BCHN/other nodes do their job well and the coin value raise - their money becomes more valuable, so $100K might become $1M in a year. Assuming they haven't sold for USD. Something tells me they didn't.
[-] Grass-roots things can be short-lived. People are free to join and leave any time, so eventually you get tired of everything.

Potential problems with the experiment

  1. Tickename, obviously pretty bad issue;
  2. Reputation/community loss (BCH splitting again);
  3. Confusion for next few years about what Bitcoin Cash is (just like it was with BCH/BTC split);
  4. No replay protection (this one is nasty), so it's hard to split your money at fork time, you need to wait to get some miner dust to mix in with your coins to split them properly;
  5. Potential that one side might be without wallets at first (i.e. if all wallets and services like Fountainhead/rest.bitcoin.com, which are used by wallets, leave ABC - how would you transfer your money?) - that surely will be a blow, but it's fixable. BCH started this way too.
  6. EDIT: Merchant dis-adoption. Many will be tired of non-stop drama and leave. Maybe, stability of BCHN site will lure some back later. (comment about this)
I don't see miners as an issue (I explained why here and here)
I'm actually curious. Whether corporate efficiency (but with a bit of socialism) or grass-roots (barely with any funding in comparison) will get ahead.
Even though there is already a similar experiment going (BSV), but it's still interesting - each corporation is different and where Apple succeeded, many other phone/computer companies failed. Is listening to market critical? Remember Henry Ford: "If I had asked people what they wanted, they would have said faster horses." On the other hand we have plenty of coins with a lot of funding not even in Top 10.
Get your tickets (coins) ready, we're in for a ride!
submitted by readcash to btc [link] [comments]

Why isn't the Bitcoin.com wallet open-source yet?

submitted by 1MightBeAPenguin to btc [link] [comments]

Why i’m bullish on Zilliqa (long read)

Edit: TL;DR added in the comments
 
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, analyzed 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, decentralized and scalable in my opinion.
 
Below I post my analysis of 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 the end of January 2019 with daily transaction rates growing continuously. About a week ago mainnet reached 5 million transactions, 500.000+ addresses in total along with 2400 nodes keeping the network decentralized and secure. Circulating supply is nearing 11 billion and currently only mining rewards are left. The maximum supply is 21 billion with annual inflation being 7.13% currently and will only decrease with time.
 
Zilliqa realized early on that the usage of public cryptocurrencies and smart contracts were increasing but decentralized, 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 the amount of nodes. More nodes = higher transaction throughput and increased decentralization. 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 dissecting 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 synchronize 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, decentralized and scalable being low.
 
pBFT stands for practical Byzantine Fault Tolerance and is an optimization 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 the 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 decentralization.
 
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 (centralized 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 its 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% translate 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 decentralized too, Zilliqa qualifies for the label of decentralized 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. The 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, roadmap 2020 and afterwards a proper Scilla introduction.
 
Generalized: programming languages can be divided into being ‘object-oriented’ or ‘functional’. Here is an ELI5 given by software development academy: * “all programs have two basic components, data – what the program knows – and behavior – what the program can do with that data. So object-oriented programming states that combining data and related behaviors 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 behavior 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 recognized 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 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 or 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 organizations 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 suggests that Singapore tries to position itself as (one of) the leading blockchain hubs in the world.
 
Zilliqa seems to already take 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 built 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 don't 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 initiative (correct me if I’m wrong though). This suggests 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 of 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]

BSV

BSV
https://preview.redd.it/urpoegyjy2p51.png?width=1153&format=png&auto=webp&s=fa9af77daf73293714d33e7266aedda0a109e2b2
Bitcoin SV (Satoshi Vision). Un fork de un fork del Bitcoin Core (BTC) a partir de las discrepancias en escalabilidad y tamaño de bloque.
Veamos qué dice Coinpaprika:
Bitcoin SV – is a new coin splitted of Bitcoin Cash blockchain on 15 November 2018. Four fundamental pillars form the basis of Bitcoin SV’s roadmap to create the one blockchain for the world: stability, scalability, security, and safe instant transactions (a.k.a 0-confirmation). The Bitcoin SV project was created at the request of and sponsored by Antiguan-based CoinGeek Mining, with development work initiated by nChain. The project is also owned by the Antiguan-based bComm Association on behalf of the global BCH (SV) community, and the Bitcoin SV code is made available under the open source MIT license.
Qué tiene de bueno BSV? Estabilidad, escalabilidad, seguridad y transacciones seguras e instantáneas. Yo no tengo queja con ninguna de ellas. Las transferencias son muy rápidas (segundos) y con una fee razonable. Incluso asumidas en muchos casos por el proveedor.
La escalabilidad (banca) y el tamaño de bloque (multimedia) serán fundamentales a futuro.
“The existing Visa credit card network processes about 15 million internet purchases per day worldwide. Bitcoin can already scale much larger than that with existing hardware for a fraction of the cost. It never really hits a scale ceiling.” – Satoshi Nakamoto (April 2009)
The BSV network will ‘upgrade’ to Quasar and increase the block size from 128 MB to 2 GB on July 24, 2019.
https://preview.redd.it/w6voga5ly2p51.jpg?width=2256&format=pjpg&auto=webp&s=c08304e64764e01515c379b8d9bcac35f3c7c3f4
BTC podrá seguir añadiendo capas paralelas, parches y demás que ya contempla BSV de base. No sé si es una solución que pueda alargarse en el tiempo, por lo que no parece que compitan en la misma liga. Queda por ver si complementarias o excluyentes …

Qué tiene de malo BSV? Es otro proyecto más? Si bien los números y la visión es ganadora, no siempre lo mejor es lo más extendido ni lo más adoptado. Lo peor que tiene BSV … es que no es BTC. Ni BCH. Hay multitud de haters atacando el proyecto y a su promotor principal Craig Wright. Autoproclamado como Satoshi Nakamoto, el promotor está envuelto en líos judiciales en el caso Kleiman (su socio fallecido) en el que los herederos de éste reclaman una fortuna (estimada en 1,1 millones de BTC) de cuando trabajaban conjuntamente. Más info:
https://es.cointelegraph.com/news/craig-wright-must-prove-access-to-11m-btc-fortune-by-april-17 
Noticias como ésa, unida a los haters de profesión (que lógicamente defienden “lo suyo”), ha convertido a BSV en una moneda controvertida que no deja indiferente a nadie. Para ver un ejemplo claro, Binance lo delistó arrastrado por la numerosa comunidad que atacaba a Craig Wright. Sin embargo, las pools de esa misma Binance están minando BSV mayoritariamente porque es una moneda rentable.
BSV no parece una moneda especulativa, ni intradía. Sigue las variaciones del mercado, con subidas y bajadas locas (como todas), pero apunta más a un largo plazo. Cinco, diez años.
Más info: https://bitcoinsv.com/
submitted by bbvedf to u/bbvedf [link] [comments]

PSA: Bitcoin.com's Wallet new releases do not currently have any publicly available source-code. Be very careful; do not trust them with funds you care about without this transparency

TL;DR: Bitcoin.com used to publicly release and track changes of their wallet's source code. Currently it is NOT true anymore for the most recent versions (5.x/6.x). Please be careful, trusting a closed-source/non-public source wallet is VERY risky for your funds.
This wallet is mainly an altcoin focused wallet nowadays, it has multiple other flaws and serious unresolved security issues.
But since it is still possible to store actual Bitcoin funds on it and it appears in the first results of a search for Bitcoin wallets (due to its name) on various App stores I've figured this post could be useful to new/unaware users.
This wallet is supposedly (hard to tell without source code) still a fork of Bitpay's CoPay wallet which is under MIT License. If this is the case authors have no obligation to publicly release the source code, but up until the last couple versions it was public and tracked on this GitHub repository.
Without any justification the new releases are now happening on a new GitHub belonging to apparently "bitcoin.jp", without any tracked source code in the repository and with only binaries available for download.
There are compressed files named "Source code" along the releases, which are empty (only containing a meaningless README file in them). Those files could easily be there to deceive people into thinking everything is like before and that the source code is still available but it clearly is not the case.
You should never use a close source wallet as it generally implies that nobody was able to independently review and audit it. Without this ability, you have no guarantee that this application is not going to leak and/or purposefully steal your private keys/seed/funds. When a wallet goes from a public open-source model to a closed source/non-public source like this wallet it is even more suspicious.
I've seen Roger Ver being asked about it multiple times on btc and he only directed users to the new GitHub, without further comments when people pointed out there was no source code there.
So please, be careful, and do NOT blindly trust this company with your funds. There are plenty of wallets that are actually open-source (with publicly available source code).
submitted by joeknowswhoiam to Bitcoin [link] [comments]

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