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Ethereum Peer List

How Can I Get A Of List Live Enodes And Add Them With Addnode?

How Can I Get A Of List Live Enodes And Add Them With Addnode?

Thank you - this helps, although it is still a bit more high-level than I had hoped. It doesn't, for example, talk much about the strategies the Ethereum client uses in order to maintain a healthy list of peers after a certain amount of up-time - strategy that has come into question in various posts on this forum. Continue reading >>

Ethereum Wallet `geth` Client Not Syncing Possible Problems With Bootnodes

Ethereum Wallet `geth` Client Not Syncing Possible Problems With Bootnodes

Some people are experiencing problems getting their Ethereum Wallet, Mist or geth node client to synchronise with the Ethereum network. See the following posts for my temporary workaround: Please test this now and reply whether peers are found and the sync begins for you. In geth 1.4.12, I am now able to find peers and successfully start syncing. Ive tested and my previously non-syncing node now syncs automatically. I retested connectivity to the bootnodes below and the first 3 connect immediately. It would be interesting to know what caused this non-syncing situation for many geth nodes. Update the node software on their bootnode servers? Reboot their bootnode servers? Make available more connection slots on their bootnode server? This entry was posted in Blog and tagged Ethereum , Peer-to-peer . Bookmark the permalink . Continue reading >>

Is There An Up To Date Ethereum Peer List? : Ethereum

Is There An Up To Date Ethereum Peer List? : Ethereum

I mined ether using geth before, but now I'm running Mist/Ethereum Wallet for the first time on a different computer and it's only connected to one flaky node, if I'm lucky. I've tried googling for a recent list of good peers to connect to but I'm coming up short. Is there a good place to find this? Edit: I'm looking for a list like here, except up to date: Edit2: I rebooted my computer and geth had a much better time at connecting to peers and downloading the chain, but then it slowed to nothing and has trouble connecting to any peer again. There's some Windows related networking hiccups going on I believe. Continue reading >>

Eidoo Your Blockchain Asset Experience Erc20 Tokens List

Eidoo Your Blockchain Asset Experience Erc20 Tokens List

Here you will find a vast ERC20 tokens list. These - together with ERC223 tokens - are entirely supported in the Eidoo app, so you can use our wallet to store these tokens. This ERC20 tokens list has been filled automatically with all the tokens included in coinmarketcap . So, it is almost complete, but it might happen that some tokens may be missing. If you have any questions, feel free to contact us via email at [emailprotected] Continue reading >>

Global Peering On Ethereum Withazure

Global Peering On Ethereum Withazure

Blockchain Evangelist at ConsenSys, INFURA Master, Founder of Ethereum NYC At INFURA, one of the primary tenets of our mission is to be a source of truth to the decentralized world. To be that reliable source of truth, some of the most fundamental data elements we want to provide are accurate and timely block and transaction data. As an infrastructure pillar, we aim to peer as widely as we can across the global Ethereum network so that we are receiving the block and transaction data as fast as possible and relaying it as effectively as we can. To address these goals, we implemented the following: The default peer count limits for the two popular Ethereum clients take into account reasonable P2P limits so as not to overdo network traffic. For geth, the default is a max of 25 peers, for Parity, the default max is 50 peers. These max values are adequate for a single local node relaying transactions occasionally to the network. However, for a platform built for high throughput, such as INFURA, we target as many as several hundred peers to position us as widely as possible. With a goal of achieving several hundred peers, at times we found it difficult under the existing libp2p discovery mechanism to achieve that goal. To address this, we decided to deploy a single node under our own control in data centers around the world. We reached out to our partners at Microsoft and were able to identify 32Azure data centers as targets: Global Azure Datacenter Footprint, INFURA globalpeers Using the Azure CLI, we scripted the deployments making this a relatively painless process. As these nodes start, we record the enode for each and feed it into a central list. Then, as we start our primary INFURA nodes, we can feed all of the 26 remote enodes to our primary using the command-line arg Continue reading >>

How To: Create Your Own Private Ethereum Blockchain

How To: Create Your Own Private Ethereum Blockchain

How To: Create Your Own Private Ethereum Blockchain Releasing a Dust Server update today to include client local time zone based login rewards Android and iOS client updates are currently in QA and will release next week including promoted blasts now marked as promoted, legacy Dusters will now get rewards, and other performance enhancements and bug fixes. Designing analytics of rewards in preparation for switching to mainnet Developing method of paying Ethereum gas costs with an ERC-20 token Researching different mechanisms for storing content on the blockchain This post marks the first in a new How To series were starting in an effort to provide some easy to read instructions covering topics our developers found particularly ill-documented online. As we move beyond the token sale, our focus now is helping other developer teams interested in integrating GMT into their apps. To that end, were ramping up our technical content production to make it easier to onboard new developers looking to try their hand with blockchain technology. If you have a particular topic youd like to see detailed in a How To post, wed love to hear from you at [email protected] This is a guide for starting your own custom Ethereum blockchain on Mac, not to be confused with starting a node on the main Ethereum blockchain. Here we are starting an entirely new and separate blockchain that cannot interact with Ethereum mainnet. Starting your own Ethereum blockchain is useful, educational, and safer than the public testnet. Learning to set up a private testnet provides tangibility to otherwise abstract concepts such as mining, network peers, and even the geth datadir. ruby -e $(curl -fsSL chainId this is your chains identifier, and is used in replay protection. homesteadBlock, eip155Block, eip Continue reading >>

Dether, The Worlds First Peer-to-peer Ether Network, Will Change The Game For Ethereum Mass Adoption

Dether, The Worlds First Peer-to-peer Ether Network, Will Change The Game For Ethereum Mass Adoption

Paris, France August 4th, 2017Powered by Ethereum smart contracts, Dether is a revolutionary new way for anyone on Earth to buy ether using cash and spend it at physical stores nearby. Unlike existing solutions, a user doesnt need a bank account, only a mobile phone with internet access. While the Ethereum blockchain opens the doors to a trustless digital world where its applications dont have any kind of censorship, fraud or third party interference, its hurdle is mass adoption. Buying ether is currently a long and difficult process. Dether wants to change that. For the first time, a decentralized application (Dapp) is creating a worldwide ecosystem of ether buyers, sellers and physical stores willing to trade ether for fiat cash and accept it as a means of payment. Creating a peer-to-peer bridge between fiat currency and Ethereum cryptocurrency With Dether, any ether owner can become a teller and have an accessible way to make money. Ether sellers can become mobile ATMs by being on the Dether map and selling ether for fiat currency anywhere in the world at any time. Users interested in buying ether can discover ether sellers near them on the Dether map, the apps built-in location system. Users can view a sellers ether/fiat rate and fees and chat anonymously via an encrypted peer-to-peer messaging solution to agree on the trading conditions and the meeting point to carry out the exchange. On the Dether map, users can even locate physical stores that accept ether as a means of payment, or who wish to trade ether for cash. This represents a unique opportunity for merchants. As Ethereum popularity explodes across the globe, more and more businesses are accepting ether. Our mission is to break barriers to foster Ethereum mass adoption, said Hamid Benyahia, Dether co-found Continue reading >>

U.s. Firm Backing Ether-based Etf Says To Refile Listing Application

U.s. Firm Backing Ether-based Etf Says To Refile Listing Application

September 7, 2017 / 9:10 PM / 7 months ago U.S. firm backing ether-based ETF says to refile listing application NEW YORK (Reuters) - The U.S. firm behind an effort to start an exchange-traded fund based on the cryptocurrency ether said on Thursday it planned to refile an application to list the security on Intercontinental Exchange Incs NYSE Arca exchange after an initial filing was withdrawn. NYSE withdrew the application with the U.S. Securities and Exchange Commission to list the EtherIndex Ether Trust ETF on Wednesday, according to a regulatory filing. The withdrawal came after EtherIndex LLC, which would issue the funds shares, amended its registration filing for the ETF on Tuesday. The delay is a timing issue and not at all a reflection of our commitment to the product, Joseph Quintilian, chief financial officer of EtherIndex, said in an email. The SEC began proceedings in April on whether to approve the ETF and was due to make a decision by Sept. 20. EtherIndex will refile the application the moment we see the appropriate developments in the marketplace, said Quintilian, who is also a partner at Axiom Markets LLC, a futures trading firm he co-founded in 2005 with Virtu Financial founder Vincent Viola. He did not give more details. A spokeswoman for NYSE declined to comment. Ether is a digital commodity based on the value token of the blockchain of the peer-to-peer Ethereum computer network, and the ETF would provide shareholders with exposure to the daily change in the U.S. dollar price of the token. The rapid rise in value of cryptocurrencies this year has driven fears of a bubble that could burst. That, along with a number of massive cybersecurity breaches affecting digital currency holders and the lack of consistent treatment of the assets by governments has Continue reading >>

Connecting To The Network

Connecting To The Network

Distribution of client implementations on the current live network - Realtime stats on EtherChain. Public, private, and consortium blockchains Most Ethereum projects today rely on Ethereum as a public blockchain, which grants access to a larger audience of users, network nodes, currency, and markets. However, there are often reasons to prefer a private blockchain or consortium blockchain (among a group of trusted participants). For example, a number of companies in verticals, like banking, are looking to Ethereum as a platform for their own private blockchains. Below is an excerpt from the blog post On Public and Private Blockchains that explains the difference between the three types of blockchains based on permissioning: Public blockchains: a public blockchain is a blockchain that anyone in the world can read, anyone in the world can send transactions to and expect to see them included if they are valid, and anyone in the world can participate in the consensus process the process for determining what blocks get added to the chain and what the current state is. As a substitute for centralized or quasi-centralized trust, public blockchains are secured by cryptoeconomics the combination of economic incentives and cryptographic verification using mechanisms such as proof of work or proof of stake, following a general principle that the degree to which someone can have an influence in the consensus process is proportional to the quantity of economic resources that they can bring to bear. These blockchains are generally considered to be fully decentralized. Consortium blockchains: a consortium blockchain is a blockchain where the consensus process is controlled by a pre-selected set of nodes; for example, one might imagine a consortium of 15 financial institutions, each of Continue reading >>

Ethereum Delirium: The Big List Of Things You Should Know

Ethereum Delirium: The Big List Of Things You Should Know

Ethereum implements a simplified version of GHOST which only goes down seven levels. Specifically, it is defined as follows: A block must specify a parent, and it must specify 0 or more uncles. An uncle included in block B must have the following properties: It must be a direct child of the kth generation ancestor of B, where 2 <= k <= 7. An uncle must be a valid block header, but does not need to be a previously verified or even valid block An uncle must be different from all uncles included in previous blocks and all other uncles included in the same block (non-double-inclusion) For every uncle U in block B, the miner of B gets an additional 3.125% added to its coinbase reward and the miner of U gets 93.75% of a standard coinbase reward. An important note is that the Ethereum virtual machine is Turing-complete; this means that EVM code can encode any computation that can be conceivably carried out, including infinite loops. The Ethereum network includes its own built-in currency, ether, which serves the dual purpose of providing a primary liquidity layer to allow for efficient exchange between various types of digital assets and, more importantly, of providing a mechanism for paying transaction fees. For convenience, and to avoid future argument (see the current mBTC/uBTC/satoshi debate in Bitcoin), the denominations for Ether are pre-labeled: In the future, it is likely that Ethereum will switch to a proof-of-stake model for security, reducing the issuance requirement to somewhere between zero and 0.05X per year. The current intent at Ethereum is to use a mining algorithm where miners are required to fetch random data from the state, compute some randomly selected transactions from the last N blocks in the blockchain, and return the hash of the result. This has two Continue reading >>

Go Ethereum - Get A Peer List For My Geth Node - Ethereum Stack Exchange

Go Ethereum - Get A Peer List For My Geth Node - Ethereum Stack Exchange

How can I use Geth (or any other client) to get a list of my peer nodes on the Ethereum network. I see there's a function to get the number of nodes using the web3 api, but I need a list of node IDs or IPs. Use admin.peers to get a list of the currently connected peers: > admin.peers[{ caps: ["eth/61", "eth/62", "eth/63"], id: "3f8f61999252251808972871bc810505d5b33f7de761c98810584279dce9ecabb0b7da0836978e6074f48e2b787048739c9dc1f734403c8adafc0716d16f4dcd", name: "Geth/v1.3.5-34b622a2/linux/go1.6", network: { localAddress: "192.168.0.105:49356", remoteAddress: "73.217.192.86:30303" }, protocols: { eth: { difficulty: 10197633442299193000, head: "8f2c1a08cfc80eff8e2aa601254d6f094e0e801b2e4f0bf2aefffaead93daa41", version: 63 } }}, { caps: ["eth/61", "eth/62", "eth/63"], id: "cae433c8f8890998f9a8694fae57e480ae1b65b40de1d0f6e823941c9d7ce1adae10c00772358e543487bf3b77a4ef9a34dd352b5ab085629df898071f42b8c6", name: "Geth/v1.4.0-unstable/linux/go1.5.1", network: { localAddress: "192.168.0.105:49340", remoteAddress: "122.114.96.120:30303" }, protocols: { eth: { difficulty: 10197633442299193000, head: "4269eb623e002975e9b097c936d004cdbb6fc4c0527c3ff824d257fc2c472b64", version: 63 } }}] This admin.peers property and other management APIs are documented on the go-ethereum wiki. Continue reading >>

Connecting To The Network

Connecting To The Network

Geth continuously attempts to connect to other nodes on the networkuntil it has peers. If you have UPnP enabled on your router or runethereum on an Internet-facing server, it will also accept connectionsfrom other nodes. Geth finds peers through something called the discovery protocol. Inthe discovery protocol, nodes are gossipping with each other to findout about other nodes on the network. In order to get going initially,geth uses a set of bootstrap nodes whose endpoints are recorded in thesource code. To change the bootnodes on startup, use the --bootnodes option andseparate the nodes by commas. For example: geth --bootnodes enode://[email protected]:port1,enode://[email protected]:port2,enode://[email protected]:port3 Sometimes you just can't get connected. The most common reasons areas follows: Your local time might be incorrect. An accurate clock is requiredto participate in the Ethereum network. Check your OS for how to resyncyour clock (example sudo ntpdate -s time.nist.gov) because even 12seconds too fast can lead to 0 peers. Some firewall configurations can prevent UDP traffic from flowing.You can use the static nodes feature or admin.addPeer() on the consoleto configure connections by hand. To start geth without the discovery protocol, you can use the --nodiscover parameter. You only want this is you are running a test node or an experimental test network with fixed nodes. To check how many peers the client is connected to in the interactive console, the net module has two attributes give you info about the number of peers and whether you are a listening node. To get more information about the connected peers, such as IP address and port number, supported protocols, use the peers() function of the admin object. admin.peers() returns the list of currently connected peers. > ad Continue reading >>

Researchers Explore Eclipse Attacks On The Ethereum Blockchain

Researchers Explore Eclipse Attacks On The Ethereum Blockchain

Researchers Explore Eclipse Attacks on the Ethereum Blockchain March 01, 2018, 12:06:59 PM EDT By Amy Castor, Bitcoin Magazine An eclipse attack is a network-level attack on a blockchain, where an attacker essentially takes control of the peer-to-peer network, obscuring a node's view of the blockchain. In a new paper titled " Low-Resource Eclipse Attacks on Ethereum's Peer-to-Peer Network ," Sharon Goldberg, an associate professor at Boston University; Ethan Heilman, a Ph.D. candidate at Boston University; and Yuval Marcus, a researcher at the University of Pittsburgh, describe a way to carry out an eclipse attack on the Ethereum network. (The researchers disclosed their attacks to Ethereum on January 9, 2018, and Ethereum developers have already issued a patch - Geth v1.8.1 - to fix the network.) In speaking with Bitcoin Magazine , Goldberg explained the research, how it compares to Bitcoin eclipse attacks and why she thinks the work is important. First, she emphasized that working with Ethereum developers to fix the vulnerability was a smooth process. "It was a very functional, easy disclosure," she said. In an email to Bitcoin Magazine , Martin Holst Swende, security lead at Ethereum Foundation - the nonprofit that oversees the development of Ethereum - explained that the recent Geth patch contains several modifications to the peer-to-peer layer and does not affect consensus-critical code. Users need not be concerned because "an eclipse-attack is a targeted attack against a specific victim," he wrote, adding, "Nevertheless, we recommend all users to upgrade to 1.8.1." As in Bitcoin, a node on the Ethereum network relies on connections to its peers to get a full view of the network. In an eclipse attack, an attacker takes control of all the connections going to and f Continue reading >>

Ethereum Introduction For Software Developers

Ethereum Introduction For Software Developers

Ethereum Introduction For Software Developers Poloniex ETH/BTC 1m chart. 0.00644 BTC to 0.0235 BTC = +264%. Peak 0.0310 BTC = +381%. I was talking to a colleague this morning and he was quite excited over the ETH/USDT chart on the main Ethereum exchange Poloniex , drawing imaginary lines while describing his trading strategies for ethers, include options positions. But he had not looked into using the Ethereum blockchain yet fundamental analysis rather than technical analysis. I suggested to my colleague that he first test runs the Ethereum technology before planning his advanced trading strategy. So, here is a short introduction to the Ethereum blockchain for him, a software developer not yet familiar with blockchains, and maybe you. I would like to show you how Ethereum is more than just a cryptocurrency it is a world computer that will execute your programs on its trusted blockchain network (in the next part). This guide only shows an example of CPU mining on the main Ethereum network (Mainnet). CPU mining is very inefficient compared to the thousands of mining rigs on the Ethereum network mainly running GPUs (Graphics Processing Units). This guide then shows you how to perform some transactions on the Dev blockchain, which only runs on your local computer. You can run the examples below on most Windows, Mac or Linux computers, servers, desktops or notebooks. No GPUs required. Youve got nothing to lose trying out these examples, except for software installation bloat, ~ 10.5 Gb of disk space for the Ethereum blockchain plus the DAG file which is use in the mining process, the 10.5 Gb downloaded via your broadband connection, and time. So give it a go. You can always delete any unwanted files later. No blockchains. Just chains of red cord so the shockwave acts togeth Continue reading >>

Simple Ethereum Ico / Token List

Simple Ethereum Ico / Token List

The Power of an Unstoppable Private Network The Mainframe network is the messaging layer for the new web. This goes beyond human-to-human messaging. There are many use-cases and applications for reliably, privately, and securely routing data packets through the Mainframe peer-to-peer network. Mainframe is resistant to censorship, surveillance, and disruption. With the exception of a catastrophic asteroid event or an aggressive alien invasion, the Mainframe network is simply unstoppable. We build with five fundamental principles as our guide. Weve had the privilege to work closely with the Ethereum Foundation, especially their Swarm/PSS teams. From that collaboration, our team was invited to present our work at Devcon3, the premier developer conference for the Ethereum ecosystem. We shared some of our technology and research on peer to peer messaging, including progress on the Onyx messaging client. The response was overwhelmingly positive. Though our technology is still early in development, many from the audience were requesting to have access as soon as possible. Onyx is an application we built internally to showcase some of the capabilities and ideas behind the Mainframe network. The end-user experience feels similar to Slack, a messaging tool for the workplace. Onyx stands apart because it is powered by a fully decentralized, censorship-resistant, and surveillance-resistant Mainframe network. All major platforms are supported (ev An application like Candy Crush wanting to tap into the $400B+ cryptocurrency market 1. Deploy a Scaffold on the blockchain using our Scaffold Generator and the OPEN API and SDKs. 2. OPEN State is created to track payment of Gems and later authorization of payment occurrence on blockchain. 3. Application receives new users payment and data Continue reading >>

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