On the choice of a new difficulty algorithm for Bitcoin

03-12 06:17 - 'Fees are already going through the roof and people are still using Bitcoin. And if they stop using Bitcoin fees will automaticly go down. / And after those 2 months of waiting for the next difficulty adjustment we will finally ge...' by /u/aziuy removed from /r/Bitcoin within 31-36min

Fees are already going through the roof and people are still using Bitcoin. And if they stop using Bitcoin fees will automaticly go down.
And after those 2 months of waiting for the next difficulty adjustment we will finally get Segregated Witness which will increase capacity and get us all sorts of cool stuff.
And I wouldn’t be surprised if Bitfury and some other pools fire up some old hardware after the fork. This way we will have a difficulty adjustment much sooner. It will also be very profitable for them to do so because they can be sure the difficulty won’t change as fast as it usually does. :)
Besides, most trade happens off-chain on the exchanges, so the people that determine the price will feel no effect of this decrease in transaction throughput. That’s why you never see the price of Bitcoin decline when there are a lot of unconfirmed transactions.
No sane user would stay unless they are doing it out of spite, which is stupid. 
I will keep using the original chain as long as it has more than 5% of the hashrate.
Context Link
Go1dfish undelete link
unreddit undelete link
Author: aziuy
submitted by removalbot to removalbot [link] [comments]

I bought a bitcoin miner from a small business, and instead of sending it to me they used it for 8 months under the pretense of "burn-in-testing"! With the rise in difficulty the miner is useless, but they are happily marketing their next tier in miner tech. Should I double down and order a monarch?

I bought a bitcoin miner from a small business, and instead of sending it to me they used it for 8 months under the pretense of submitted by Cheekio to libertyworldproblems [link] [comments]

How to kill Bitcoin in 4 weeks

How to kill Bitcoin in 4 weeks:
A nation like China or a couple nation's cooperate and seize their in-country mining operations to the point they have 51% hashpower. They immediately cease all mining at the next difficulty adjustment. With half the hashpower gone, it will take the remaining miners 4 weeks to reach the next difficulty adjustment.
When the miners finally reach the difficulty adjustment, China releases the longer chain they have been mining without broadcasting. This erases all activity for the past 4 weeks and all the mining rewards. The miners get nothing for 4 weeks of work. All transactions are reverted and it's chaos.
China immediately goes dark again, mining offline. Everyone knows they cannot make any transactions that won't get reverted. Miners know they will get paid nothing for the next 2 weeks of mining. Miners have no rational reason to turn on the next day. All exchanges with their cold wallets with thousands of coinz are now completely worthless. They cannot be moved. All customer accounts are now worthless. They cannot check out with their coinz. All cold wallets are now worthless.
Bitcoin is effectively dead. China can mine the chain out for 8-30 weeks, whatever they are comfortable with. If any entity does after a few years manage to get to the next difficulty adjustment, China can immediately release the longer chain they've been sitting on.
Pretty cool huh? I do have one question, could my theoretical China create "save states" at each difficulty adjustment, so they they could mine out so many blocks into the future, but just release each fresh "2 week" version when the public chain manages to slog its way there?
submitted by thehoesmaketheman to Buttcoin [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:
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.
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]

RIP HAL FINNEY "His last post on a BTC Forum"

I thought I'd write about the last four years, an eventful time for Bitcoin and me.
For those who don't know me, I'm Hal Finney. I got my start in crypto working on an early version of PGP, working closely with Phil Zimmermann. When Phil decided to start PGP Corporation, I was one of the first hires. I would work on PGP until my retirement. At the same time, I got involved with the Cypherpunks. I ran the first cryptographically based anonymous remailer, among other activities.
Fast forward to late 2008 and the announcement of Bitcoin. I've noticed that cryptographic graybeards (I was in my mid 50's) tend to get cynical. I was more idealistic; I have always loved crypto, the mystery and the paradox of it.
When Satoshi announced Bitcoin on the cryptography mailing list, he got a skeptical reception at best. Cryptographers have seen too many grand schemes by clueless noobs. They tend to have a knee jerk reaction.
I was more positive. I had long been interested in cryptographic payment schemes. Plus I was lucky enough to meet and extensively correspond with both Wei Dai and Nick Szabo, generally acknowledged to have created ideas that would be realized with Bitcoin. I had made an attempt to create my own proof of work based currency, called RPOW. So I found Bitcoin facinating.
When Satoshi announced the first release of the software, I grabbed it right away. I think I was the first person besides Satoshi to run bitcoin. I mined block 70-something, and I was the recipient of the first bitcoin transaction, when Satoshi sent ten coins to me as a test. I carried on an email conversation with Satoshi over the next few days, mostly me reporting bugs and him fixing them.
Today, Satoshi's true identity has become a mystery. But at the time, I thought I was dealing with a young man of Japanese ancestry who was very smart and sincere. I've had the good fortune to know many brilliant people over the course of my life, so I recognize the signs.
After a few days, bitcoin was running pretty stably, so I left it running. Those were the days when difficulty was 1, and you could find blocks with a CPU, not even a GPU. I mined several blocks over the next days. But I turned it off because it made my computer run hot, and the fan noise bothered me. In retrospect, I wish I had kept it up longer, but on the other hand I was extraordinarily lucky to be there at the beginning. It's one of those glass half full half empty things.
The next I heard of Bitcoin was late 2010, when I was surprised to find that it was not only still going, bitcoins actually had monetary value. I dusted off my old wallet, and was relieved to discover that my bitcoins were still there. As the price climbed up to real money, I transferred the coins into an offline wallet, where hopefully they'll be worth something to my heirs.
Speaking of heirs, I got a surprise in 2009, when I was suddenly diagnosed with a fatal disease. I was in the best shape of my life at the start of that year, I'd lost a lot of weight and taken up distance running. I'd run several half marathons, and I was starting to train for a full marathon. I worked my way up to 20+ mile runs, and I thought I was all set. That's when everything went wrong.
My body began to fail. I slurred my speech, lost strength in my hands, and my legs were slow to recover. In August, 2009, I was given the diagnosis of ALS, also called Lou Gehrig's disease, after the famous baseball player who got it.
ALS is a disease that kills moter neurons, which carry signals from the brain to the muscles. It causes first weakness, then gradually increasing paralysis. It is usually fatal in 2 to 5 years. My symptoms were mild at first and I continued to work, but fatigue and voice problems forced me to retire in early 2011. Since then the disease has continued its inexorable progression.
Today, I am essentially paralyzed. I am fed through a tube, and my breathing is assisted through another tube. I operate the computer using a commercial eyetracker system. It also has a speech synthesizer, so this is my voice now. I spend all day in my power wheelchair. I worked up an interface using an arduino so that I can adjust my wheelchair's position using my eyes.
It has been an adjustment, but my life is not too bad. I can still read, listen to music, and watch TV and movies. I recently discovered that I can even write code. It's very slow, probably 50 times slower than I was before. But I still love programming and it gives me goals. Currently I'm working on something Mike Hearn suggested, using the security features of modern processors, designed to support "Trusted Computing", to harden Bitcoin wallets. It's almost ready to release. I just have to do the documentation.
And of course the price gyrations of bitcoins are entertaining to me. I have skin in the game. But I came by my bitcoins through luck, with little credit to me. I lived through the crash of 2011. So I've seen it before. Easy come, easy go.
That's my story. I'm pretty lucky overall. Even with the ALS, my life is very satisfying. But my life expectancy is limited. Those discussions about inheriting your bitcoins are of more than academic interest. My bitcoins are stored in our safe deposit box, and my son and daughter are tech savvy. I think they're safe enough. I'm comfortable with my legacy.
submitted by Cxesar to Bitcoin [link] [comments]

Testing the Tide | Monthly FIRE Portfolio Update - June 2020

We would rather be ruined than changed.
-W H Auden, The Age of Anxiety
This is my forty-third portfolio update. I complete this update monthly to check my progress against my goal.
Portfolio goal
My objective is to reach a portfolio of $2 180 000 by 1 July 2021. This would produce a real annual income of about $87 000 (in 2020 dollars).
This portfolio objective is based on an expected average real return of 3.99 per cent, or a nominal return of 6.49 per cent.
Portfolio summary
Vanguard Lifestrategy High Growth Fund – $726 306
Vanguard Lifestrategy Growth Fund – $42 118
Vanguard Lifestrategy Balanced Fund – $78 730
Vanguard Diversified Bonds Fund – $111 691
Vanguard Australian Shares ETF (VAS) – $201 745
Vanguard International Shares ETF (VGS) – $39 357
Betashares Australia 200 ETF (A200) – $231 269
Telstra shares (TLS) – $1 668
Insurance Australia Group shares (IAG) – $7 310
NIB Holdings shares (NHF) – $5 532
Gold ETF (GOLD.ASX) – $117 757
Secured physical gold – $18 913
Ratesetter (P2P lending) – $10 479
Bitcoin – $148 990
Raiz app (Aggressive portfolio) – $16 841
Spaceship Voyager app (Index portfolio) – $2 553
BrickX (P2P rental real estate) – $4 484
Total portfolio value: $1 765 743 (+$8 485 or 0.5%)
Asset allocation
Australian shares – 42.2% (2.8% under)
Global shares – 22.0%
Emerging markets shares – 2.3%
International small companies – 3.0%
Total international shares – 27.3% (2.7% under)
Total shares – 69.5% (5.5% under)
Total property securities – 0.3% (0.3% over)
Australian bonds – 4.7%
International bonds – 9.4%
Total bonds – 14.0% (1.0% under)
Gold – 7.7%
Bitcoin – 8.4%
Gold and alternatives – 16.2% (6.2% over)
Presented visually, below is a high-level view of the current asset allocation of the portfolio.
The overall portfolio increased slightly over the month. This has continued to move the portfolio beyond the lows seen in late March.
The modest portfolio growth of $8 000, or 0.5 per cent, maintains its value at around that achieved at the beginning of the year.
The limited growth this month largely reflects an increase in the value of my current equity holdings, in VAS and A200 and the Vanguard retail funds. This has outweighed a small decline in the value of Bitcoin and global shares. The value of the bond holdings also increased modestly, pushing them to their highest value since around early 2017.
There still appears to be an air of unreality around recent asset price increases and the broader economic context. Britain's Bank of England has on some indicators shown that the aftermath of the pandemic and lockdown represent the most challenging financial crisis in around 300 years. What is clear is that investor perceptions and fear around the coronavirus pandemic are a substantial ongoing force driving volatility in equity markets (pdf).
A somewhat optimistic view is provided here that the recovery could look more like the recovery from a natural disaster, rather than a traditional recession. Yet there are few certainties on offer. Negative oil prices, and effective offers by US equity investors to bail out Hertz creditors at no cost appear to be signs of a financial system under significant strains.
As this Reserve Bank article highlights, while some Australian households are well-placed to weather the storm ahead, the timing and severity of what lays ahead is an important unknown that will itself feed into changes in household wealth from here.
Investments this month have been exclusively in the Australian shares exchange-traded fund (VAS) using Selfwealth.* This has been to bring my actual asset allocation more closely in line with the target split between Australian and global shares.
A moving azimuth: falling spending continues
Monthly expenses on the credit card have continued their downward trajectory across the past month.
The rolling average of monthly credit card spending is now at its lowest point over the period of the journey. This is despite the end of lockdown, and a slow resumption of some more normal aspects of spending.
This has continued the brief period since April of the achievement of a notional and contingent kind of financial independence.
The below chart illustrates this temporary state, setting out the degree to which portfolio distributions cover estimated total expenses, measured month to month.
There are two sources of volatility underlying its movement. The first is the level of expenses, which can vary, and the second is the fact that it is based on financial year distributions, which are themselves volatile.
Importantly, the distributions over the last twelve months of this chart is only an estimate - and hence the next few weeks will affect the precision of this analysis across its last 12 observations.
Estimating 2019-20 financial year portfolio distributions
Since the beginning of the journey, this time of year usually has sense of waiting for events to unfold - in particular, finding out the level of half-year distributions to June.
These represent the bulk of distributions, usually averaging 60-65 per cent of total distributions received. They are an important and tangible signpost of progress on the financial independence journey.
This is no simple task, as distributions have varied in size considerably.
A part of this variation has been the important role of sometimes large and lumpy capital distributions - which have made up between 30 to 48 per cent of total distributions in recent years, and an average of around 15 per cent across the last two decades.
I have experimented with many different approaches, most of which have relied on averaging over multi-year periods to even out the 'peaks and troughs' of how market movements may have affected distributions. The main approaches have been:
Each of these have their particular simplifications, advantages and drawbacks.
Developing new navigation tools
Over the past month I have also developed more fully an alternate 'model' for estimating returns.
This simply derives a median value across a set of historical 'cents per unit' distribution data for June and December payouts for the Vanguard funds and exchange traded funds. These make up over 96 per cent of income producing portfolio assets.
In other words, this model essentially assumes that each Vanguard fund and ETF owned pays out the 'average' level of distributions this half-year, with the average being based on distribution records that typically go back between 5 to 10 years.
Mapping the distribution estimates
The chart below sets out the estimate produced by each approach for the June distributions that are to come.
Some observations on these findings can be made.
The lowest estimate is the 'adjusted GFC income' observation, which essentially assumes that the income for this period is as low as experienced by the equity and bond portfolio during the Global Financial Crisis. Just due to timing differences of the period observed, this seems to be a 'worst case' lower bound estimate, which I do not currently place significant weight on.
Similarly, at the highest end, the 'average distribution rate' approach simply assumes June distributions deliver a distribution equal to the median that the entire portfolio has delivered since 1999. With higher interest rates, and larger fixed income holdings across much of that time, this seems an objectively unlikely outcome.
Similarly, the delivery of exactly the income suggested by long-term averages measured across decades and even centuries would be a matter of chance, rather than the basis for rational expectations.
Central estimates of the line of position
This leaves the estimates towards the centre of the chart - estimates of between around $28 000 to $43 000 as representing the more likely range.
I attach less weight to the historical three-year average due to the high contribution of distributed capital gains over that period of growth, where at least across equities some capital losses are likely to be in greater presence.
My preferred central estimate is the model estimate (green) , as it is based in historical data directly from the investment vehicles rather than my own evolving portfolio. The data it is based on in some cases goes back to the Global Financial Crisis. This estimate is also quite close to the raw average of all the alternative approaches (red). It sits a little above the 'adjusted income' measure.
None of these estimates, it should be noted, contain any explicit adjustment for the earnings and dividend reductions or delays arising from COVID-19. They may, therefore represent a modest over-estimate for likely June distributions, to the extent that these effects are more negative than those experienced on average across the period of the underlying data.
These are difficult to estimate, but dividend reductions could easily be in the order of 20-30 per cent, plausibly lowering distributions to the $23 000 to $27 000 range. The recently announced forecast dividend for the Vanguard Australian Shares ETF (VAS) is, for example, the lowest in four years.
As seen from chart above, there is a wide band of estimates, which grow wider still should capital gains be unexpectedly distributed from the Vanguard retail funds. These have represented a source of considerable volatility. Given this, it may seem fruitless to seek to estimate these forthcoming distributions, compared to just waiting for them to arrive.
Yet this exercise helps by setting out reasoning and positions, before hindsight bias urgently arrives to inform me that I knew the right answer all along. It also potentially helps clearly 'reject' some models over time, if the predictions they make prove to be systematically incorrect.
Progress against the objective, and the additional measures I have reached is set out below.
Measure Portfolio All Assets
Portfolio objective – $2 180 000 (or $87 000 pa) 81.0% 109.4%
Credit card purchases – $71 000 pa 98.8% 133.5%
Total expenses – $89 000 pa 79.2% 106.9%
The current coronavirus conditions are affecting all aspects of the journey to financial independence - changing spending habits, leading to volatility in equity markets and sequencing risks, and perhaps dramatically altering the expected pattern of portfolio distributions.
Although history can provide some guidance, there is simply no definitive way to know whether any or all of these changes will be fundamental and permanent alterations, or simply data points on a post-natural disaster path to a different post-pandemic set of conditions. There is the temptation to fit past crises imperfectly into the modern picture, as this Of Dollars and Data post illustrates well.
Taking a longer 100 year view, this piece 'The Allegory of the Hawk and Serpent' is a reminder that our entire set of received truths about constructing a portfolio to survive for the long-term can be a product of a sample size of one - actual past history - and subject to recency bias.
This month has felt like one of quiet routines, muted events compared to the past few months, and waiting to understand more fully the shape of the new. Nonetheless, with each new investment, or week of lower expenditure than implied in my FI target, the nature of the journey is incrementally changing - beneath the surface.
Small milestones are being passed - such as over 40 per cent of my equity holdings being outside of the the Vanguard retail funds. Or these these retail funds - which once formed over 95 per cent of the portfolio - now making up less than half.
With a significant part of the financial independence journey being about repeated small actions producing outsized results with time, the issue of maintaining good routines while exploring beneficial changes is real.
Adding to the complexity is that embarking on the financial journey itself is likely to change who one is. This idea, of the difficulty or impossibility of knowing the preferences of a future self, is explored in a fascinating way in this Econtalk podcast episode with a philosophical thought experiment about vampires. It poses the question: perhaps we can never know ourselves at the destination? And yet, who would rationally choose ruin over any change?
The post, links and full charts can be seen here.
submitted by thefiexpl to fiaustralia [link] [comments]

Message to all of my followers:

Hope everyone is having a good ass day today. This might be long. Please upvote so others are more likely to see in their feeds.
I have really wanted to start sharing my other forms of trading with you guys. I trade forex and did well this week betting on usd strength against the safe haven currency Japanese yen.
I’m also invested at $2,200 into a crypto currency called cindicator. I have 392,197 shares. Trying to get to 700,000 for access to their highest tier of trading indicators. I’ve followed this company for a long ass time and their product is great. If the price gets back to its high of $0.37, it’s a 6,959% profit for me. I’m expecting it to hit AT LEAST a dollar during this next bull run due to cnd/btc charts. Crypto currencies are similar to pennystocks in their volatility.
I also have very good evidence that bitcoin is about to start moving up very rapidly. The halving event that pushed it up to $20,000 just happened again two weeks ago. I and probably everyone else are expecting $100,000 bitcoin by October 2021 due to bitcoin stock to flow model. That indicator was designed by some billion dollar hedge fund manager and its accuracy is something I’ve never seen before. Please read the bottom half where it explains how that indicator works. Truly impressive.
I’m also learning how to trade SPY options, and I just made my first winning trade after a week of losing by buying SPY 298c 5/29
So my question is, are you interested in learning other forms of trading? By order of difficulty, we’d start with crypto currency. Mainly bitcoin and a handful of others. It’s pretty straightforward until you get into cold storage. Then forex which is complicated, and options further down the line after I understand them fully. Or if the consensus is forex or options, we’ll start there.
My main goal in Reddit is to make you guys better traders/ investors. One of my next personal goals is to get my series 7 and 65 licenses and do this shit professionally.
I’ve done the math, and if my average return in forex at ~10% per month stays consistent, managing $5,000,000 in client money and charging 20% would mean I make $80,000 a month. I’m currently building my trading history on Oanda as the first step in this process. So if you start seeing me in suits and ties on my streams, you’ll know what’s up.
Let me know if you’re interested. I’m not sure how I would do it. Maybe just include [BTC] in my headlines about crypto currency stuff when I post so that it’s easy to skim over for those not interested. I don’t want to start an isolated subreddit or anything like that.
submitted by trevandezz to u/trevandezz [link] [comments]

The Mysterious Entity that Caused the Bitcoin Network fees to Jump 146% in May

The Mysterious Entity that Caused the Bitcoin Network fees to Jump 146% in May
May 25, 2020
Bitcoin price has yet again taken a dive to $8,800, recording a drop of 4%.
Meanwhile, Network Demand Score which is a metric incorporating network velocity, transaction value, fees, and miner’s rolling inventory, climbed to 6/6 following the bitcoin halving meaning the network is growing stronger which could also be a sign that “we’re in a longer-term bull market.”
Since March 12th, just before the massive sell-off, this score has remained above a 3/6 reflecting growing strength in network activity and instilling confidence in the ongoing uptrend for the bitcoin price.
3 Reasons why fees skyrocketed
One component of this indicator, bitcoin on-chain fees has been surging like crazy.
Last week, Bitcoin average transaction fee climbed to $7, last seen in February 2018. This has the miner revenues from fees rising to the levels not seen for more than 2 years. But this week, it also dropped 55% to $3.13.
The increase in transaction fees, which is increasingly becoming more important for Bitcoin network security, has been because of the unconfirmed transactions piling on in mempool.
A decline in hash rate following halving caused fewer blocks to be found and will continue until the next difficulty adjustment has been one of the reasons behind this jump in fees.
The other reason is the large fluctuations in bitcoin price which has traders sending coins between exchanges.
Ather reason is a “mysterious entity which has been consolidating outputs at the highest fee rates, driving up fees for everyone,” pointed out Serrrgej Kotliar, CEO Bitrefill.
Who is this “Crazy1o1”?
Over the weekend Kotliar shared how, for the past 14 days, this mysterious entity has consolidated a lower-bound of 720 thousand outputs, 5 MB per day, more than BitMEX.
Since May 1st, this entity named “Crazy1o1” has spent around 804k UTXOs and has paid more than 104BTC in mining fees during this time, noted Laurent.
“On some days, these fees are equivalent to 10-12% of all the fees received by miners,” he said.
Laurent along with others suspect this entity to be the cryptocurrency exchange Coinbase.
Earlier this month, it was also found that crypto derivatives exchange BitMEX is making the bitcoin network expensive for everyone and its own users are paying 6.8% of total daily transaction fees.
Prepare for the next bull market
All of this a “decent fire drill for what might happen if we see another bull market,” said Kotliar. Grubles from Blockstream said,
The fees reached its all-time high at over $55 during the peak of the bull market in December 2017. As such in the next bull market, a 5x growth in on-chain transactions should be expected.
But given that batching, one of the many ways the network has been scaled is here, it will prevent the pressure on the network from getting worse than 2017. But exchanges will need to be prepared for this.
submitted by kealenz to BitcoinMarkets [link] [comments]

Warning: Blockchain difficulty adjustment affecting price movements

Below are notable difficulty adjustments when hash rate fell and block times become slower for Bitcoin.
  1. 26 Mar 2020 [difficulty adjustment -15.95%, avg block time 11min 54secs]. On the 28th price crashed from $6674 to $6138 ( -8%).
  2. 8 Nov 2019 [difficulty adjustment -7.1%, avg block time 10min 46secs]. On the same day price crashed from $9234 to $8783 ( -4.88%).
  3. The next big adjustment was around Nov to Dec 2018 and there were 3 big adjustments with high block times.

Current situation:
We are 1 day 10 hours from the next difficulty adjustment. Projected difficulty adjustment is -5.61% (https://fork.lol/pow/retarget), which could indicate a small dip. However, take note that the date of last adjustment was the 5th and the 3rd halving was on the 11th, between the 5th to the 11th there was increased hashrate from miners trying to mine the final week of 12.5btc that offset the really slow block times after the halving. Therefore it will be the next difficulty adjustment after the one on the 20th that will completely reflect the slower block times after the halving. Currently the median block time taken on the 17th was around 14min (-28.5% difficulty adjustment).
For people who do not understand blockchain, basically with the Bitcoin 3rd halving, mining profitability fell for a lot of miners and they probably turned off their miners therefore the blockchain mining time became considerably slower which is reflected with slow transaction speed and higher fees as seen currently. Bitcoin sellers moving their BTC from wallet to an exchange are faced with slow transaction speed and therefore the sell pressure of BTC fell considerably which will attribute to the current price increase. There is a correlation between sell pressure and blockchain congestion (the size of the correlation is undetermined).
There is going to be a race. A race between BTC price hiking high enough to attract more miners to reduce avg block times versus the closing window of roughly 2 weeks before the next difficulty adjustment. If the price does not jump high enough, the next difficulty adjustment in the first week of June could signal a huge dip.
I am not an expert. I just did some research on the above and wanted to share with fellow Bitcoin compatriots so that we can tread with caution and not lose our shirts. I do not plan to short BTC but I will exit my BTC positions if I expect double digit negative difficulty adjustment in early June.
Please visit the original post here https://www.reddit.com/Bitcoin/comments/gm23pe/warning_blockchain_difficulty_adjustment/
There are pictures in the original post as well as 2nd halving evidence with pics. I could not post pics here. If possible please upvote the original post, a lot of people downvote it. Not sure why people downvote it, maybe veterans attempting to hide information from newcomers to fleece them of their shirt.

Update 1:>! As of writing, I have opened a small short position on Bitcoin. Stop loss around 10k, estimated take profit around 8500. The reason is because the difficulty adjustment in the next 20 hours, even though is just -5% roughly is still significant. I direct you to look into all the difficulty adjustments in the last 2 years and you will know how rare it is. The ones I caught were all listed at the very top of the post. Since it is my first time shorting BTC, I take this as a learning opportunity so that I will have some experience to face the bigger difficulty adjustment in the first week of June. Analysis into execution, even in failure I am happy.!<
Update 2: The difficulty adjustment (DA) happened roughly 6 hours ago and the sell pressure from -6% DA did not seem to be affecting the market much. However, please take a look now at the estimation for the next DA.
On https://bitcoin.clarkmoody.com/dashboard/ it is estimated to be -25%.
On https://fork.lol/pow/retarget estimated to be -18%.
On https://www.blockchain.com/charts/median-confirmation-time the median block time for the last day was 16.8min.
My original proposition that the true DA of the halving can only be realized in the next DA stands and that it will be considerable. The increased sell pressure from that DA will be highly significant. That is why there is a race by current miners to get the BTC price up high enough to attract more miners to not have the DA drop too much.
Update 3: Current BTC price at $9100 ( ~39 hours after DA). Then again BTC could have dropped from all sorts of reason. However the coincidence with the DA and with all the past DA is just too high to simply shrug off as irrelevant. Anyways past result cannot predict future ones, stay safe with the trading. Will no longer check on this post.
Difficulty adjustment dates taken from https://btc.com/stats/diff
Bitcoin graph history for price movement taken from coinmarketcap.
Median confirmation time (block time) taken from https://www.blockchain.com/charts/median-confirmation-time

Credits to people who assisted the analysis:
kairepaire for pointing out faster block times between 5th-11th.
babies_eater for https://fork.lol/pow/retarget
moes_tavern_wifi for https://bitcoin.clarkmoody.com/dashboard/
Pantamis for https://diff.cryptothis.com/
submitted by theforwardbrain to BitcoinMarkets [link] [comments]

You can have a market for blockspace without full blocks

In a recent comment, an bitcoin mod claimed that you need full blocks for a fee market.
That is simply not true. Over a year ago I estimated the marginal cost of Bitcoin BCH/BSV transactions. I got a number of about 2 cents/kB: a number greater than 0, mostly dominated by bandwidth costs.
What the Core developers are doing with their "fee market" is gaming the metric. By artificially restricting the supply of blockspace, they made the supply of blockspace inelastic. Goods with inelastic supply tend to have very volatile prices in response to small changes in demand. Wildly varying fees are not a quality you want in a payments system.
But it is even worse than that. Note in my analysis that I list POW as a fixed cost. The reason is that due to the nature of hashing, each block header can represent an arbitrary number of transactions for almost no additional work. The asymptotic growth rate of POW with more transactions is O(1). That makes the overhead of processing transactions rounding error for miners.
BTC on the other hand, makes POW a marginal cost of transactions. The POW becomes O(n): increasing with the number of transactions processed. The way the BTC "fee market" works: users can bribe miners to spin up more hash-power by spending at least $50/kB (at current prices) to get their transaction in the next block.
However, even such a bribe still only provides temporary relief. If too many people do it: the difficulty adjustment algorithm will kick in and re-reduce the supply of blockspace after 2 weeks.
Note: this comment was originally a PM to the mod in question. I removed identifying information and link to the other sub.
submitted by phillipsjk to btc [link] [comments]

Question about 51% attacks in PoW systems

I think everyone knows what 51% attack is. One single entity like a person or a mining pool owns 51% of the hashrate. Some questions came in my mind regarding this situation.
I read in a lot of online blogposts and websites that it would be possible to double spend if you own the majority of hashing power in Bitcoin. I don't understand that point, because if your transaction is confirmed and included in a block it is not possible to get it out of it again. So you are still unable to double spend just because you find 51% of all blocks, because your consensus rules are still the same?
The next point I don't understand is the argument that you can produce a longer chain than the "original" (provided that you own 51% for a very long time), because in your chain you will still just find a new block every 10 minutes on average, because of the difficulty adjustment. So your chain won't get longer and will be unable to become the "original one" than.
The only thread which comes in my mind is that you could censor the network transactions, because you can select which transactions getting confirmed for the most blocks.
I hope you can help me and clarify this. Thanks
submitted by MahatmaGonnDir to Bitcoin [link] [comments]

An In-Depth Guide to: How do I Fix my Ledger Nano’s Stuck Ethereum Transaction?!?!?! (It’s Been Stuck for Weeks and NOTHING Traditional has Worked!!!!) As Well as: How Do I Choose My Nonce??? I’ve Tried MetaMask, MEW/MyEtherWallet, and Others, but Nothing is Working Correctly!!! I’m Dying by Stress!

So, if you were like me 1-2 months ago, you’ve probably already gone through 2,or 3, ...or 40 articles and guides that probably say something like:
“YeP, eVeRy EtHeReUm UsEr WiLl EvEnTuAlLy HaVe ThE LoW-gAs ExPeRiEnCe, YoU’rE nOt AlOnE! DoN’t FrEaK OuT tHoUgH; ThErE iS a WaY tO fIx It!”
Chances are, every time you read another useless article, you want to kill the nearest inanimate object, even though it was never alive in the first place. Nonetheless, you’re gonna kill it as much as it can be killed, holding nothing back; or, you’re just plotting to and slowly getting closer to executing the plan (and the object) every time you are insulted once again.
However, if you have the ability to download software (MyCryptoWallet) on a PC, it should be safe to relax now. I think you’ve finally found some good news, because I am 99.99...% sure this will work for the issue that so many people are having at this time, around the end of the month of May, year 2020.
More and more people are likely to be having this issue soon, since Ethereum's gas prices have been insanely high lately as well as having 300% price changes in a matter of minutes; Etherscan’s Gas tracker is nearly uselessly-inaccurate at this time. I've heard that there's a congestion attack; that was said a week ago, and it appears to be ongoing... (I can't think of any other suspect besides Justin Sun to blame it on... it must be incredibly expensive to overload the blockchain for this long... I may be wrong though...)
Let’s begin
For myself, I was trying to send an ERC20 token when this dreadful issue attacked. Specifically, the token was either BSOV or GRT; I sent them 1 after the other and the first succeeded, and the second one took over a week.
(They’re both great tokens in my opinion and deserve much more attention than they’ve been getting. BSOV is nearing its 1 year anniversary as I write this, and GRT is still in its 90 day community-development progress test, so of course I'm gonna take this opportunity to "shill" them; they are great tokens with great communities).
I was able to finally fix it, after a week of mental agony (also the txn finally processed 1-2 hours before I found the solution, robbing me of the gratitude of fixing it myself... (╯‵□′)╯︵┻━┻ ...but now I guess I can hopefully save some of you the headaches that I endured... ) I’m providing the ability to do the same, in a step by step guide.
Why did I go through all of this trouble? I'd fault the fact that I have ADHD and autism, which in my case can multiply each other’s intensity and cause me to “hyper-focus” on things, much much more than most with the same qualities, intentionally or not. Adderall is supposed to give me a bit of control over it, but except for in a very-generalized way, it’s still 90% up to chance and my default-capabilities to allow me control over my attention with self-willpower. But also Karma and Moons pls... ʘ‿ʘ
  1. In MyCrypto, (I'm using the Windows 10 app, version 1.7.10) you will open to a screen that says "How would you like to access your wallet?". Choose Ledger, of course. (Unless your here for some non-ledger issue? Idk why you would be but ok.)
  2. On the next screen (having your nano already plugged in, unlocked, and opened into the Ethereum app) click "Connect to Ledger Wallet"
  3. A screen overlay should appear, titled: "Select an Address". Here is where it may get confusing for some users. Refer to "AAA" below to know how to find your account. (Geez, sorry lol that was a huge amount of info for a reddit reply; I might've over-elaborated a little bit too much. but hey it's valuable information nonetheless!)
  4. After escaping the "AAA" section, you'll have accessed your account with MyCrypto. Awesome! To find your ERC20 tokens, (slight evil-laughter is heard from an unidentifiable origin somewhere in the back of your mind) go to "AAB".
  5. (You may have decided to find the token(s) on your own, rather than daring to submit to my help again; if so, you may pity those who chose the other path... ~~( ̄▽ ̄)~~) Now, once you've added your token, you should revert your attention to the account's transfer fill-out form!
  6. I'll combine the steps you probably understood on your own, already. Put in the address that your stuck transaction is still trying to send currency to. If an ERC20 token is involved, use the drop-down menu to change "ETH" to the token in trouble. Input your amount into the box labeled... wait for it... "Amount". Click on "+Advanced".
  7. Refer to Etherscan.com for the data you will need. Fi