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Questions tagged [accounts]

Ethereum has two types of accounts: externally owned user accounts, controlled by private keys, and contract accounts, controlled by their contract code.

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Error while generating Mnemonic

I want to generate Mnemonic for creating an account, I was using the following code and I got the error as TypeError: Cannot read property 'entropyToMnemonic' of undefined I am sure I am missing ...
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Running 'parity account new' - is the generated account suitable for all networks (mainnet, ropsten, kovan, etc)?

From a command line, I run parity account new. I am then asked to enter a password (twice), and an account-address is printed. In addition to that, a JSON file is created. Finally, I use this ...
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Golang Equivalent to list accounts on node - web3.eth.Accounts()

Does anyone know if its possible to get a list of the accounts on a node using golang, after Dialing to the node, basic PoC would be assuming the accounts are already unlocked via the CLI Basically ...
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Accounts and Wallets

Testing the GethJS console commands. I put in practice the personal.listWallets and personal.listAccounts. The first return me this value: And the second command return me this: It seems that are ...
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Constructor set the account to the first trasaction address

I,m trying to block the call to the getOrigin function to accounts that are not equal to the account that is set in setOrigin function. Now the first account that call to setOrigin is the unique that ...
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38 views

Creating wallets with Web3j

I generate a code to create wallets for a private chain made with ethereum. String password = unlockAccountParameter.getPass(); ECKeyPair keyPair = Keys.createEcKeyPair(); WalletFile ...
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47 views

Create account with web3j

Im trying to create a account using the web3j library. But i can´t find the method that create accounts. My idea is to make this judgment but not in the Geth console, but yes in the Java application ...
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32 views

GETH accounts imported without my knowledge

I expose only port 30303, not 8545. But when I issue commands eth.accounts. I found these accounts were imported without my knowledge: "0xe4fe1fb7e693c529f5a95dd8b1714d1acfdbd058", "...
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31 views

Importing accounts into geth from metamask

I Have entered into my geth console geth eth.accounts ["0xf844f0d7acb0d01bf66ffd81809fb96b2236abce", "0xc8d94cb87173fc94c4b165e44a5fc0b047618044", "0x6a0ef1a429c3570cb342963d309dd5aaa9e49cd4", "...
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28 views

Is there a way to generate an account (private/public key) using direct go-ethereum function calls?

I am trying to run a standalone EVM and need to create accounts to interact with it, without hardcoding keys into the code. Also for security purposes I would like to regenerate the keys everytime the ...
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where does Etherscan gets account name from? [duplicate]

Where does Etherscan gets names of accounts from? Is it ENS? Token name ? Or do they collect input data from users? For example, this address bleongs to F2Pool : https://etherscan.io/address/...
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Getting Addresses using a Path causes the error: Could not derive hardened child key

I am using ethereumjs-wallet npm package to generate a unique wallet address for each user. However instead of using the mnemonic/seed, a public extended key xpub will be used instead to keep the ...
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2answers
30 views

Does a transaction always require a smart contract to be executed?

I had a discussion with someone explaining that every time a transaction occurs (e.g. ICO token or ETH) on Ethereum it would pass via a smart contract or would require one. I would like to know what ...
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48 views

Receive Ether to multiple addresses best practice

Say I am an exchange that has many users. When I ask a user to deposit ETH I give him a unique address so I can attribute the ETH to him. With Bitcoin this is easy. The bitcoin wallet software ...
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2answers
32 views

Is there any way to fund a new account privately via a randomising pool?

It isn't currently possible to create a new HD wallet account and privately fund it, is it? I'm aware of this thread, but I'm not asking about SNARKs. Instead, I'm curious if there's any way to send ...
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3answers
55 views

how do you check if the account exists in current state?

Currently there is no way to check somehow that an account exists in the trie. I am looking for something like this: > web3.eth.accountExist("0x743623152a53b53be5f3463746726373") true > Is a ...
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What actually happen when we unlock an account?

I know the purpose of personal.unlockAccount() function is to unlock account i.e. when I want to send ETH or tokens. After reading the documentation, I'm still not sure what is actually happening ...
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1answer
139 views

How to initiate a transaction with address and privateKey using web3js

I have a list of ethereum addresses and private keys, I need to write an automation script which checks for the balance in each address and transfer the balance funds to another ethereum address. My ...
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52 views

Is it possible to create an account from a seed phrase on a Private Blockchain?

On a private Ethereum BC run through Geth, is there anyway that I can generate accounts based on strings? The behavior I am looking for is similar to how Ganache (TestRPC) & Truffle can generate ...
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1answer
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Block an account in a permissioned blockchain environment

We are developing a permissioned blockchain environment with Ethermint. Companies have to apply to join the blockchain environment, we create and give them their Ethereum account. One of the main ...
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2answers
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Curious questions for mastering accounts

I am curious that some companies give each customer an eth address for making payment and how to redirect the payment to one master account? Save the private key of each customer? Any example? I think ...
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Ethereum unlock account

Is there any way to unlock the ethereum account when using the infura api. Can only metamask do it? I would not like to use metamask because not every user has it on the browser
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How do other nodes handle the accounts of a deleted node?

In Ethereum Blockchain, the accounts created on one node stay with it and are not replicated into other nodes. If that node is deleted and hence is not a part of that network, then what happen to the ...
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1answer
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duration limit for unlockAccount()

When I use personal.unlockAccount(), there is an option to pass a parameter for duration. What is the maximum duration to which i can unlock the account? I have searched through its documentation. It ...
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UTXO vs Account scalability paradigms and Merkle proof of ownership

From Ethereum's design rationale: Potential scalability paradigms: UTXOs are more theoretically compatible with certain kinds of scalability paradigms, as we can rely on only the owner of some ...
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Can private keys change once created?

Can private keys change once the public key (address) is created?
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Ethereum Account and Address Term Used Interchangeably?

Are the terms Account and Address in Ethereum used interchangeably? i.e., an Account is an address. An address points to an account
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165 views

web3.eth.personal.newAccount + JSON RPC error connected to ropsten in metamask

Updated: I have a function where I init web3 and included web3.eth.personal.newAccount at the bottom of the function to create a new account. initWeb3: function() { if (typeof web3 !== '...
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1answer
108 views

My dApp can use Metamask accounts with givenProvider but not when setting Web3 object to Rinkeby provider URL?

Today is the first day I deployed to a test network (Rinkeby) and not my local Ganache client network. I think I need clarification on accounts when it comes to Metamask and Rinkeby. If I initialize ...
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61 views

Is there a way to use etherscan API (or another) to get a history of transactions for a specific ERC20 token for an ethereum account?

I want to be able to display the complete history of our token transfers in and out of users wallets. Is there an easy or established way to do this?
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1answer
33 views

Who owns the ETH in the zero account? [duplicate]

Per https://etherscan.io/address/0x0000000000000000000000000000000000000000 the zero account currently contains ETH worth about $3.3 million USD. I understand how the zero account is used in the EVM. ...
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93 views

Account nonce limit/maximum

I've been reading about an account's nonce, that it's supposed to be an incremental number that increments with every transaction. I found about transactions pool and queue, about what happen if you ...
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How to use key derivation and 'coin selection' to increase privacy, like in Bitcoin?

In Bitcoin, you can have increased privacy by never re-using addresses. A single private key can generate many addresses if you are using a key derivation scheme. In Ethereum, instead of UTXOs you ...
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What happens if the “balance” of the address which sends “address.transfer(amount) is ” zero "?

Consider the balance of the address that sends address.transfer(amount); to receive the amount is zero. For example we have following address with balance of zero: web3.eth.getBalance('0x123').then(...
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157 views

How can I transfer ownership to another contract?

I have a contract which inherits from contract Claimable by OpenZeppelin (see here): pragma solidity ^0.4.24; import "./Claimable.sol"; contract MyTestContract is Claimable { uint256 public id; ...
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How to give a non-zero balance to a contract at time of deployment using Remix?

In case we want to deploy a contract by web3.js we can easily determine the balance of the contract at time of deployment as follows: const thisContract = new web3.eth.Contract(abi); thisContract....
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Authenticating accounts in Ethereum using web3js

Is a there a way to authenticate accounts in Ethereum using Web3js? Or if there are any other ways to authenticate accounts? We are building an application where users can register in our system. ...
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1answer
566 views

How to get the balance of a contract using web3.js?

I have deployed a contract as follows and determined its balance to be 5000 wei (value: 5000): const thisContract = new web3.eth.Contract(abi); thisContract.deploy({ data: bytecode, ...
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135 views

UPDATED : How to determine “payer address” in “address.transfer(amount)”?

Consider we a function as follows : address public recipient; function settlement(uint256 amount) public { recipient = msg.sender; recipient.transfer(amount); } Then the ...
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Deploy contract page doesn't show accounts

I am new in ethereum and blokchain stuff. I want to make contract ,but the accounts are not shown on this page.Can someone tall what I am doing wrong?
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UPDATE: (I need to run testrpc before running the code) Problem with signing a message with “web3.eth.personal.sign” or “web3.eth.sign”

I use exactly the example of web3js (here) to sign a text. So, I generated a .js file asfollows : Web3 = require("web3") web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545")); ...
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1answer
125 views

How do the other nodes know which particular node has the account used in the transaction?

A brief about my setup. I am using a private Ethereum network with 3 nodes. I have made all the nodes as peers of each other by using: admin.addPeer("enode:1234abcd..") When mining takes place, all ...
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1answer
127 views

How can I create a wallet and display the address, public and private key using web3js?

I am using this as my source for web3js: <script src="http://raw.githubusercontent.com/ethereum/web3.js/0.16.0/dist/web3.min.js"> </script> In my HTML I want to display the account's ...
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1answer
128 views

Retrieve contract byte code

How may I find the byte code of an arbitrary contract? Preferably using a website and not writing my own client.
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475 views

Truffle test: How to test Ether transfer? Balance of specific account?

How is it possible to test if my contract actually transfers money to a specific account? function _transfer(address receiver_, uint256 payout) internal{ receiver_.transfer(payout); } Testing in ...
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154 views

how to make getAccounts() return a list of all 10 accounts?

I am using Truffle Development (or Ganache at times) and the problem is web3.eth.accounts is only one account and not the list of all 10 accounts I want to get hold of at least first two so that I ...
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Why does address.transfer(amount) cost the same when sent to a new or used address?

In the Ethereum yellow-paper, it's specified that creating a new account costs 25000 gas (Appendix G, entry for Gnewaccount). We can see this if, for example, we call a function that makes a transfer:...
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Paying for gas on behalf of users?

I'm exploring ways to enable contracts/dApp owners to pay for gas on behalf of users. I know contact abstraction should enable this eventually, and the first step has been done with EIP208 which ...
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1answer
143 views

How does Ethereum account state change? [duplicate]

Ethereum uses Accounts instead of UTXO (Bitcoin). I would like to know how does the ledger keep the account state (technical details if possible)? Does it modify the ledger (accounts) by incrementing ...
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2answers
90 views

Account created using web3 is not showing in geth console

I have created a new address using web3.eth.accounts.create() and it responds with { address: '0x9AA2767207d0aC9cCdD2e3B244210f630588F3E3', privateKey: '...