Questions tagged [network]
a network allows computers to communicate and exchange data
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Structure of p2p network in Ethereum
We now know that the blockchain runs on a p2p network and that the information is driven by gossip algorithms. Is the structure on p2p used in ethereum a simple structure like you can find on simple ...
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Ethereum network on TCP vs QUIC protocol (UDP-based) on data transferring
I'm new to the Geth p2p network (devp2p). Devp2p uses both TCP and UDP to run it's networking protocol. The TCP is for the data transferring between each node and the UDP is for nodes discovery. I ...
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How to check if a certain hard fork is enabled in your network?
We are running a private PoW (Proof of Work) network on geth
I would like to know, how can i determine if a certain hard fork is enabled on my network ?
For instance, how will i check if the London ...
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Is there any other use-case of having a decentralised network other than majorly DeFi and GameFi?
I have been familiar with the Web3 ecosystem for almost 2-years now. But I still fail to understand if there is any other real world use-case for a decentralised network other than DeFi, ICOs and NFTs ...
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Is it possible to transfer USDC from Fantom Opera network to BEP-20 network?
I have tried couple of bridging websites like Anyswap, Spookyswap but it failed badly. My coins are stuck in Fantom network. I want to switch them to other network, any suggestion?
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How can I determine which node mined a specific block in Ethereum?
I've amassed a collection of detailed information about various Ethereum nodes, as shown in the example below.
Given this data and a particular block (either by its number or hash), how can I identify ...
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how can i connect to ethereum p2p network without node? [closed]
Is it possible to connect to an Ethereum P2P network without running a node, and if so, how can one accomplish this?
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Is adding a new feature to a Ethereum client, without altering consensus rules, a creation of a new fork?
So, if I add new features to my Ethereum client like new ways to Incentivize validators and nodes without altering the consensus rules, and 5 people start trying my Ethereum client, becoming nodes, ...
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Stuck Transaction: Receiving USDT from Binance Smart Chain to Coinbase Ethereum Address
I hope you can assist me with a transaction issue I'm currently facing. I received USDT to my Coinbase Ethereum address from Binance Smart Chain, but the transaction is on hold, and I am unable to ...
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What motivates Ethereum validators to accept new members of the network?
Among existing members of the validator network, it's clear what motivates them to accept blocks by other validators: not accepting a verifiably valid block could result in slashing.
But what about ...
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Error: network does not support ENS (operation=“ENS”, network=“maticmum”, code=UNSUPPORTED_OPERATION, version=providers/5.5.3 this error is comingabc
When I try to access address as endpoints on getstaticpaths the error is coming
Error: network does not support ENS (operation=“ENS”, network=“maticmum”, code=UNSUPPORTED_OPERATION, version=providers/...
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108
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Sent ETH to a multisig wallet of wrong network
I made a mistake to sent 4.32ETH from Arbitrum One to a Ethereum safe wallet(eth address: 0xb393D80cAB42233Ba1E2EE1d0cac18e10e20ADD6),
the safe wallet creation hash is ...
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How to build a ethereum private chain after the Merge?
I want the build an ethereum private chain that similars toward the exsiting ethereum network. But i find there were not any documents about how to build the ethereum private chain after the Merge
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Both L2 and gasless
I need a network that is both L2 (Validium or ZK-rollups) and provides a gasless platform (for the L2 smart contracts).
Which L2 networks provide such the capability?
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How to deploy all my contracts from same address (without writing .connect() a bunch of times)?
I have a mnemonic in my .env.
I added it to my hardhat.config.js as such:
accounts: {
mnemonic: process.env.MNEMONIC,
path: "m/44'/60'/0'/0",
initialIndex: 0,
count: 20,
...
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Changing the private network to the main one
I connected to the Metamsk wallet with geth software to the private network of localhost 8545 and I'd; 1337, now I have ether balance in the Metamsk wallet, but when I change the network to the main ...
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could not detect network Error
I have deployed my contract in vs code with hardhat same as the https://ethereum.org/en/developers/tutorials/how-to-write-and-deploy-an-nft/
but I got network error like bellow :
How can i solve this ...
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Is there any cell phone network being run on blockchain?
Is there any service like an ordinary cell phone service provider (i.e., pay or subscribe for cell phone network) which is somehow run on blockchain? Instead of there being a company whose services ...
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How to recover from intermittent 'the resource eth_call is not available' during runtime?
When I call a contract function using a block_identifier from the past,
I get error code -32002 the resource eth_call is not available in ~4/5 times
when using a public RPC using Python web3.
~1/5 ...
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Accidently sent TRC20 Tether to an ERC20 wallet, what do I do?
Used Kraken to Send TRC20 to an ERC20 wallet and i do not see funds in erc20 wallet
trans id: 0x60f487f0e36b8be315b3955188bba8b3e62ab60b8f41e1fea256a304ecf0acee
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Where to find information on handshake messsages a new node needs to exchange with a peer?
So I am looking to dig further into how new nodes join the ethereum network. I am looking at studying this for both the execution and consensus layer.
Specifically I am interested in knowing:
How do ...
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Which commit should be used when deploy gnosis safe to a new network
I will deploy gonsis safe(https://github.com/safe-global/safe-contracts) to a new network. Shall I use the lastest commit, or use the lastest release(current version is v1.3.0-libs.0)?
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Is it a requirement that RPC providers (Infura, Ankr, Pocket, etc) collect a wallet's IP address?
If you do not run your own node and must interface with Ethereum network through an RPC like Infura, is it a requirement they collect your IP address in order to route the response back to you?
Of ...
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How to find an address network?
I am trying to create a UI to send and receive multiple cryptocurrencies (BTC, ETH, USDT, USDC,...) in different networks (Bitcoin, Ethereum, ERC20, BEP20, TRC20,...).
How can I check whether an ...
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Testing smart contract on network with multiple nodes
Newbie here, wondering if this is possible:
I’m doing research on implementing a smart contract on a network with multiple nodes. I need to be able to deploy the contract (on a test network) and ...
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Sync geth from a trusted execution-layer peer instead of beacon node
I have an existing hierarchical setup of my geth nodes, where the mission-critical Private node runs in a hardened environment only being able to talk to the Border node, which in turn talks to the ...
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Can I make a bridge without liquidity?
I started developing what it meant to be a bridge to learn and settle down my Solidity knowledge. I thought it could be done by one person and from what I understood I just needed smart contracts to ...
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Why the network request of web3 interaction through react or any other frontend framework or library is not showing in the network tab of browser?
All network request we make from browser is shows in the network tab , but the web3 request is not showing in the web browser. Web3 library uses network RPC to interact with the blockchain. The RPC is ...
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How i can send my Ethereum from kovan test network to Ethereum main network
I have Ethereum in metamask which is in kovan test network so now I want to withdraw them so I want send Ethereum in Ethereum main network so I send to any crypto application
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How do clients and nodes download their data from the decentralised network?
I have always just take it that the nodes and clients will download the data from the "network". The full nodes will download the entire blockchain state while the light clients will ...
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How to establish a private network using nethermind client?
So I have 5 ubuntu 20 nodes on a single network with sudo access. I want to spin up a private Ethereum network using nethermind client (not geth). How one may do such a thing - where to start is there ...
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Term of winning mining [duplicate]
I'm new to the ethereum network and read official documents on the site(https://ethereum.org/).
But,I could't find out the term of of winnning mining like getting leading 4-zero or 6-zero hash.
Before ...
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How to add all the EVM chains to brownie?
I am able to add particular RPC url for that particular chain for eg. Binace Smart Chain to brownie using "brownie networks add".
But I want to multiple networks to brownie, how can I ...
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Question about finding token addresses to insert into a .sol Contract function
Ok so I have a .sol Contract that is trying to find arb between 2 dexes
I'm utilizing the Kovan Test Network -
this is the function
function estimateDualDexTrade(address _router1, address _router2, ...
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Does an Ethereum Node need to be accessible from the internet?
Suppose I want an Ethereum/BSC node running on my network using GETH. I want to be able to access the node and run any sort of API calls against via Web3 from a locally running software.
The node has ...
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How does a node know the consensus and reconcile the differences?
There are a lot of similar questions like this, but I could not find satisfactory answers specific to my questions.
1.Purely from a single node's perspective, how does it know that the block it ...
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how to deploy the smart contract in brownie
Error: Final argument must be a dict of transaction parameters that includes a `from` field specifying the address to deploy from
Terminating local RPC client...
smart contract:
pragma solidity ^0.5....
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How does a new node register in the network? [duplicate]
I am just trying to get into the topic of Etherium and Blockchain and currently I do not understand the following.
Etherium network is decentralized p2p network. But if I start a node, the network ...
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raise ValueError("Explorer API not set for this network") ValueError: Explorer API not set for this network
I run this code in brownie:
brownie run scripts/deploy.py --networks Rinkeby
deploy.py:
from brownie import network, config, accounts
from brownie import FundMe
def deploy_fund_me():
account = ...
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How to ask the metamask user to switch its network?
Some web3 enabled websites ask you to switch your network on metamask. How can I do so?
Some other websites also allow you to add a network you don't have (for example https://chainlist.org/). I would ...
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How to know if i can connect to a network?
I deployed to Rinkeby, when I connect to Rinkeby everything is ok, but if I change the network (for example Ropsten), I am getting an error that is ok as well because my contract is for Rinkeby.
my ...
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Understanding performance optimizations of View Functions
First I understand that view functions cost no gas and they are run locally on the node that gets the call. I am curious about practical optimizations of view functions.
To make things simple maybe a ...
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Network ropsten doesn't show in metamask
Why I can't change the network to Ropsten Test Network? It doesn't show up in pop up menu.
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i accidentally send usdt-trc20 into the usdt-trc20 contract itself... is there any way i could get it back?
In tron network, I have mistakenly send USDT token to the USDT contract (TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t). Is there anyway I could get my fund back? Thanks!
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Access control in ethereum
Can you let some nodes in ethereum network have only view access while others can to mine blocks and add them to blockchain? Can the miners be authorized nodes only?
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What type of validation happens in transaction propagation?
I am reading the Mastering Ethereum book and came across this piece:
On average, each Ethereum node maintains connections to at least 13 other nodes, called its neighbors. Each neighbor node ...
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When we send transaction to a network we only send the signature of the transaction then how is the miner able to decrypt the message?
When we send transaction to a network as shown below we only send the signature of the transaction then how is the miner able to decrypt the message?
If only the signed transaction is sent to the ...
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Embedding metamask or a wallet on a network in a webpage
just a random thought. Is it possible to embed a wallet on a network in a webpage? Sort of like moving part of metamask and making it a permanent built-in module in a webpage. This way, users do not ...
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I'm connecting to the wrong network but my configuration seems right
Trying to run truffle console I got this typical error:
I've checked my configuration and it seems OK to me (I don't know why truffle is trying to connect to 127.0.0.1). Here you can see my project:
...
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Getting LINK for Ropsten network
I'm trying to get LINK for Ropsten. I'm using this faucet: https://ropsten.chain.link/ and, when I've added the new token, I've used this address 0x20fe562d797a42dcb3399062ae9546cd06f63280 (Chainlink ...
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