ATOMIC WALLET TO SUPPORT ETHEREUM CONSTANTINOPLE HARDFORK
Following the previous postponement of the Ethereum Constantinople hardfork, a lot has has been anticipating the new scheduled date for the fork and also the wallets that would support the fork.
Alas, I bring an interesting news to you. Atomic Wallet supports CONSTANTINOPLE fork. This is an opportunity to get your wallet while anticipating the fork https://atomicwallet.io/
Let me quickly roll out on what the Ethereum hardfork would entail.
Ethereum Constantinople and St.Petersburg hard forks are required to be on 7,280,000 square tallness, on February 28. They will overhaul Ethereum codebase, diminish savvy contracts execution cost and mining reward, will include off-chain exchanges backing and ETH holders will get 1 Ethereum Nowa coin for 1 ETH on their wallet. It's difficult to confide in the task as on their site to purchase ETN tokens you have to move your ETH to their records and they will trade it to ETN rather and the venture objectives appears to be unsure and hazy. Likewise we can't make sense of who is remaining behind their group. On BitcoinTalk you may see examination, that colleagues were simply stock pictures and nothing more.
WHAT IS HARDFORK?
Hardfork is a codebase refresh. To determine the blockchain issues or include upgrades, you have to roll out the improvements in the center code.
Normally, there are three fundamental purposes behind making a hardfork:
Some security dangers found in the past form (for example that is the reason Constantinople hardfork has been delayed).
You have to add new usefulness to the blockchain.
Now and again, you can make a fork to turn around exchanges. (for example renowned DAO break).
Hardforking requires code changing without in reverse similarity. After the hardfork all the past blockchain with every one of the exchanges will be replicated and changed to the new standards.
EIP 145: Make utilization of brilliant contracts a lot less expensive, shrewd contacts will utilize gas sum 10x time lower than previously. (3 gas with EIP 145 and 35 gas before the improvement). This refresh will improve the data handling on the ETH blockchain the procedure itself called the "bitwise moving".
EIP 1052: Code execution will be upgraded. Hash selection will make contacts confirmation progressively less demanding and rather compelling.
EIP 1283: The estimating technique will be made more attractive and easier in the event of agreement stockpiling (SSTORE opcode).
EIP 1014: Off-chain exchanges support. State installment channels will consequently improve the execution of the system.
EIP 1234: Block mining reward diminished to 2 ETH rather than 3. It will include additional a year of mining before the Ethereum Ice Age will come. It implies when there will be nothing to mine, it will solidify the system or make mining productive on the blockchain. The decrease in square mining prize would postpone the trouble bomb for a time of a year. The designers would continue improving and the mineworkers needs to receive the refresh, else wouldn't most likely benefit from mining.
STORE YOUR ETH IN ATOMIC WALLET
Where to store ETH?
Atomic Wallet underpins Ethereum hardforks and over 300+ different coins and tokens, including BTC, LTC, XRP and so on. You can without much of a stretch secure, oversee, trade and purchase Ethereum in one interface. You can likewise follow your portfolio, screen the rates and exchange history. Atomic gives you full authority over your assets by scrambling private keys on your gadget with no care dangers.
Download Atomic Wallet here: https://atomicwallet.io/
Stay tuned and tail us on:
previous days Question:
the 3 days of devcon are over. Are people interested in reports on the next 3 days of international Blockchain week (demo day + 2 days of global Blockchain summit) http://www.blockchainweek2016.org
The buzz during the day was around the "stick puzzle" that Bok Khoo was giving out to people. It is just a stick, with a loop of string. He gets you to turn away, he uses "the trick" to put it onto your bag and then you try to get it off.
The WeChat channel was just filled with everyone asking where they can get it, and the screaming that they can't figure it out. Only about 5 people reported they were able to solve it (I haven't yet) http://imgur.com/mYfJQP4 http://imgur.com/4Euka1a
I'm biased, but I thought the announcement from Microsoft with the update of cryptlets was a big deal. The morning sessions covered a few different oracle systems, the afternoon had lots of IPFS sessions. Microsoft - A Lap around Cryptlets https://azure.microsoft.com/en-us/blog/cryptletsdd/ https://azure.microsoft.com/en-us/documentation/templates/ethereum-consortium-blockchain-network/ https://azure.microsoft.com/en-us/blog/authomarleyg
Microsoft was a sponsor of Devcon1 & 2 Ethereum is a 1st class citizen Support for community & partners - Bizspark, Meetups, Workshops
Announcing: Bletchley v1 Distributed Ledger stack V1 is a private Ethrerum consortium, that you can spin up for your own enterprise / group http://imgur.com/olwwd36
Cryptlets are being developed to help with security, identity, etc. How do you get trusted external data feeds injected into the Blockchain? Doing things on a specific interval (every 15 mins) When price of something hits a threshold (oil goes above $40/barrel) Secure IP protected algorithms, but still share with blockchain network. Use libraries for common platforms (.Net, Java, etc)
Cryptlets vs Oracle Cryptlets will have a marketplace on Azure that will allow you to purchase and utilise
Use case: Trigger on an event Wake up on 4pm, if market was open that day, then give me the price of gold for that day.Get signature of attested server, attested sender.
Use case: Control Using smart contract like a traditional DB. Declare data you are keeping track of, and the functions/"stored proc" to update that data. Cryptlet runs off chain, and can be scaled up. http://imgur.com/ysgL8S2
Utility cryptlet. Use an attribute in solidity contract with cryptlet details Developer references at design time the cryptlet they want the contract to call Contract cryptlet, deploy the cryptlet at same time as contract.
Why would you want Azure to do this? SGX allows you to create "secure enclaves", can have complete isolation on the hardware chip where it is not modifable. Provides a secure enclave at the CPU level. Can give full attestation right down to the silicon. Will be provided as a enclave container on Azure. Will be released for .NET core CLR first, then other languages. Can create cryptlet libraries that you can scale and put into the Azure marketplace. An ecosystem for developers & ISVs to consume and publish.
Bletchley v1 released today will let you spin up a private consortium. Before today, it took a long time to try and deploy a private consortium (can take weeks to read doco, Now takes 5 minutes to deploy! Creates a private consortium, puts each member in its own separate subnet http://imgur.com/w4yUsqE
Mist Vision and Demo I was too busy sharing the release posts of Microsoft project bletchey v1, missed this talk. It did look interesting, I will watch this one later. Idea: Reward for bandwidth. Providing connection could replace mining as entrance point for desktop computers. Allow you to have a trickle so you can trigger smart contracts. Standardised backends, so that you can swap out the underlying node between geth, blockapps, etc. Web3.js https://github.com/ethereum/web3.js
Etehereum JS API Smart conracts are EVM opcodes, Helps translates calls to JSON RPC calls. Helps do the ABI encoding when sending data from JS to EVM It kept on growing, many different utility functions being thrown in. Is time to clean it up and be refactored.
They are now building a NEW web3.js The communication will be socket based, will enable subscriptions. Everything will be based on promises to subscribe to events, like log events. Bunch of other newer cleaner methods and ways to do things like deploying contracts. Smart contract security
Was a very good postmorteum of The DAO and things that could be done to mitigate it in the future.
An issue with The DAO was trying to do a massive jump from centralisation all the way to full decentralisation. Meant no one could step up and make a decision on how to save it. We need to make smaller steps towards full decentralisation as we learn as a community how to do this. Same security patterns as yesterday's talks: check invarients, beware 1024 call stack depth, reentry exploit (update state BEFORE executing calls), timestamps are manipulatable. Updateable contracts. Who can update it? Community multisig? We need better rools: formal verification, compiler warnings, improved IDEs, trusted libraries, excape hatches
Conclusion: It is still very early days in this space, be careful. A Provably Honest Oracle Model: Auditable Offchain Data Gathering & Computations
Oracalize is the most widely used oracle (until everyone starts using Microsoft Azure cryptlets ;-) ) Contract calls Oracalize contract with the data they want, off chain they see this get the data, Oracalise then trigger their contract externally, which does a callback to your contract with the data. Can use external notary servers. Can get proof from multiple external services to get a higher level of confidence about data (e.g. stock price from a few feeds). Off-chain (auditable_ computation) AWS sandbox 2.0. Put the execution package onto IPFS, AWS gets it and executes it, signs it. iEx.ec: Fully Distributed Cloud Thanks to the Ethereum Blockchain http://iex.ec/
Provides blockchain based execution environments Global market for computing resources. Idea is to do what we did before with "grid computing" use the idle capacity of computers. But this time do a trickle of micropayments. Allows people to harness this global power to execute their tasks in a global "distributed cloud". The Final frontier: The company smart conract http://otonomos.com/
Helping companies to incorporate on the blockchain. Smart oracles https://github.com/smartoracles
Connecting to external resources is difficult. Hard to try and use external currencies (like a bank account / fiat money) to make transactions. Could hook in paypal, HSBC, wells fargo, etc. Can provide your own payment services as an API to a smart oracle for smart contracts to consume. Do off chain data storage by calling smart oracle API Roadmap: more data sources & more payment methods IPFS & Ethereum: Updates https://Ipfs.io
IPFS is AMAZING, seriously go watch the full 1 hour talks Juan has given in previous years.
Current web has current issues. Centralisation, etc. IPFS is a new hypermedia transfer protocol Content can be retrieved not from specific servers, but instead via it's hash so that it can come from anywhere in the network (maybe from the person next to you who has cached it). It is highly modular, all of the transfer protocals, routing, naming, etc. are all swapable Is available as GO-IPFS & now JS-IPFS Means now you can run IPFS in the browser IPFS was great for static content, but not so great for dynamic content. Low latency pub/sub protocol will help with dynamic data. Created a distributed peer to peer chat app using this new dynamic content protocol. IPLD a common link-tree hash format Will be able to use IPFS to retrieve ethereum blockchain blocks DIRECTLY Can use IPFS as a package manager to retrieve them in a distributed manner.
Many projects are using Ethereum & IPFS Uport, Digix, Infura, Ujo, Eris, Blockfreight. Filecoin was created as a way to try and incentivize nodes to keep files longer time. People rent out hdd space to earn filecoin. Exchange bitcoin/filecoin. Use filecoin to store files in network. Filecoin is going to be built on top of the public Ethereum blockchain, as a virtual blockchain / token. IPFS Libp2p & Ethereum networking
Network connectivity between any 2 nodes can be difficult. Censorship, bandwidth, network issues, etc. Having to deal with different networking topologies and access. Libp2p & Devp2p is different. Devp2p is for Ethereum. LIbp2p is modular, can swap out components to change network access, encryption methods, etc. Can build up a MEGA mesh network, by utilising traditional wired internet, radio, bluetooth between some nodes. Web browser using web socket, to a node, which routes across network, to zigbee to a IoT device. Libp2p & Devp2p could merge and augment each other. Could create the libp2p components to replace the devp2p bits Any 2 nodes that speak the same protocol can communicate and be a part of the network chain. Experiment. They took the browser based version of EVM. Then used Libp2p to talk to the Ethereum network. Had a complete ethereum node running in a browser. Uport https://uport.me/
Universal identity platform Current challenges: key management. Ux for average person. Dapps via mobile. Identity and data ownership. How do you keep a consistent identity, even if you lose a key. Have some multisig contracts that you can use to keep track. Social recovery, use your friends to attest it is really you. Keep private key on mobile, do transactions on the desktop, scan a QR code to sign the transaction on your phone and send it off. A Deep Dive into the Colony Foundation Protocol
It is an open source governance protocol built on Ethereum Problem with voting is how to prevent Sybil attacks. Votes are weighted by a reputation score. Reputation is non-transferable that can only be earned. Total weighted voting helps mitigate this. Chain orchestration tooling & smart contract package management
Eris is tooling for developers. Package manager to build your own blockchain. Can compose a chain, e.g. geth + tendermint consensus. Init, install, do. Can easily install on Mac/bew, linux/apt-get, Windows/choco The Golem Project: Ethereum-based market for computing power http://www.golemproject.net/
Anyone can make an offer to sell computing power. e.g. Distributed rendering Want to create a standard framework that anyone can use to submit and process jobs. Status: Integrating Ethereum Into Our Daily Lives https://status.im
Want to get ethereum everywhere. "Mist for Mobile" Everyone is using their mobile phones for everything, but mostly using instant messaging. What would Ethereum in a IM window look? Created a IM mobile app that has a local geth node. tart up, it asks you to create a password, it generates a pub/private pair. Then can send messages via whisper, and the messages are signed with your public key. Can load Dapps up in the local webview and interact with them. Allows you to create "chat Dapps", that you interact with via text. Like chatbots Maker Ecosystem Overview www.Makerdao.com
Dai: seeking stability on blockchain. Stablecoin engine: smart contract that holds collateral reserves and controls the Dai lifecycle. MKR: open source community managing risk of the system In the last year, investing in a solid technical core. More slow and audit things. Moving into the next phase of stablecoin development. Their latest project is the "Simplecoin project" Meeting Thereum community's need for stability. An independent platform for creating centrally administered simple stablecoins. Issues create their own rule sets: Collateral types, participant whitelists, security parameters. Example: Shrutebucks. The only people who own it are Dwight, Jim & Pam. They backed it with 1/3 ETH 1/3 DGX 1/3 DUSD. Orbit. A distributed peer to peer app on IPFS https://github.com/haadcode
Created a full distributed chat room, itself distributed through IPFS. It is integrated with uPort for identification Using uPort allows you to verify that you are talking to the correct person in the chat channel. All their messages are signed with their public keys He also created a full distribited twitter clone, using uport for the identity as well. Orbit-db key value store DB that stores its data on IPFS. Eventually consistent Appends data to the DB, an event is sent to those subscribed on pub/sub so they can see the latest root hash. Based on CRDT Ethereum + Pubsub + CRDTs + IPFS = super power primatives to build dynamic distributed apps
Development considerations with distributed apps. Need to ensure that apps work offline. No centralised servers. No data silos. Provide integration path.
Future work: could you use uPort for ACL like permissions? Mobile use cases, how to make it work nicely on mobiles Building scalable React Dapp architecture https://github.com/SilentCicero/react-dapp-boilerplate
React + Ethereum He has a configured boilerplate template. Has contract scaffolding. Enforced contract Linting/testing. Wallet generation/identity. Preconfigured web3 instance. UI: Mature react arhitecture "react boilerplate". Prices listed in USD with ETH/btc via kraken api. A basic multi-contract example Dapp. Offline first, dapp runs without internet. Uses Redux. State models in UI & blockchains work well. PostCSS, CSS Modules, sanitize.cs. Redux, immutableJS, reslect, redux-saga, i18n, redux-router. Web3, ethdeploy, dapple, solium, eth-lightwallet, chaithereum, ethereumjs0-testrpc Enforced contract testing in 2 languages. Ethereum for Enterprise (BlockApps Strato)
Trying to make sure that Ethereum stays relevent to enterprise development. Why do you need a blockchain WITHIN an org, shouldn't they trust each other? Well different departments may not, they may reconcile differently, and can help automate/orchestrate between them. Blockchain is the "killer app" for cloud financial services. Legacy infrastructure, batch prossing, etc are all restricting fintech from progressing. Blockchain can happen in real time, can replace legacy. Ethereum is very flexible and programmable, works well. There are others based on Bitcoin (like Hyperledger). Ethereum + Blockapps = Extreme productivity + Proven Technology. Blockapps is extending Ethereum for Enterprise. Runs very well on Azure Enterprises don't want all their data exposed on public chain. Blockapps helps solve data privacy and scaling with multichain fabrics.
Ethereum wouldn’t be where it is today without its older cousin, Bitcoin. Ever since it launched, there’s been critique about the requirement of launching a completely separate blockchain ... However, since Bitcoin is decentralized, the community may not always agree on some upgrades, and sometimes they decide to part ways, making one blockchain being split into two, and both continue to be used by the opposing camps of the community. Such an event is called a hard fork. Further Reading: Bitcoin Price 2017 vs Bitcoin 2019 Prediction Instead, you’d buy dozens of eggs in stock, one at a time, to avoid the nuisance of going to Costco on a daily basis. Bitcoin is intrinsically slow as a money transfer service, relatively speaking. Over the last 10 years, the Bitcoin ecosystem has attracted developers to dedicate thousands of hours to improve and revamp most of its underlying codebase. Yet, Bitcoin is largely the same.The reason for this is that its core set of consensus rules that define its monetary properties, such as its algorithmic inflation and hard-coded supply, remain unchanged. Hidden surprises in the Bitcoin blockchain and how they are stored: Nelson Mandela, Wikileaks, photos, and Python software Every Bitcoin transaction is stored in the distributed database known as the Bitcoin blockchain. However, people have found ways to hack the Bitcoin protocol to store more than just transactions. I've searched through the blockchain and found many strange and interesting ...
Bitcoin Cash Development video meeting January 3 2018 - 8am UTC Participants: Amaury Séchet, Andrea Suisani, Antony Zegers, Jason B. Cox, Chris Pacia, Emil O... Building on Bitcoin conference Lisbon, 3-4 July 2018 Thomas Kerin: Working with scripts with logical opcodes Transcript : http://diyhpl.us/wiki/transcripts/b... Here are two BIP drafts that specify a proposal for a Taproot softfork. A number of ideas are included: * Taproot to make all outputs and cooperative spends indistinguishable from eachother ... Learning Bitcoin 4 - Bitcoin Code Exploration - Block - Part 1. Você já deve ter se perguntado o que são os tais OPCODES. Ou pelo menos já deve ter ouvido falar do tal OP_RETURN ou OP_CHECKLOCKTIMEVERIFY. É difícil explic...