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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2answers
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Is it possible to send transactions to multiple recipients?

In other blockchain based platforms, it's possible to send transactions to multiple recipients. For instance, if I want to send 13 ETH to Alice and 7 ETH to Bob, Bitcoin has sendmany. Is it possible ...
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1answer
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Account is locked. How to unlock it using json-rpc? [duplicate]

When trying to send a transaction through json-rpc interface on a geth node (version 1.4.10-stable-5f55d95a, running on testnet) using eth_sendTransaction I got this error message: -32000 [message] ...
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2answers
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If someone gets my geth keystore files, can they spend my ETH without knowing my password(s)?

I always assumed so, since geth requires a new password for every account, but just want to be sure.
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Which Ethereum accounts have the most Ether?

Where can someone get a list of all the ethereum accounts and sort it by the # of ether they have?
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1answer
3k views

How to get address from private key in java

I use generate a private key in java code HashUtil.sha3("cow".getBytes()) Write to a new private key file: c85ef7d79691fe79573b1a7064c19c1a9819ebdbd1faaab1a8ec92344438aaf4 Then, I use geth account ...
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1answer
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Lockout time for Ethereum accounts

What is the default lockout time for Ethereum accounts? I know that we can mention the time until which we need the account in unlocked state: personal.unlockAccount(addr, pswd, duration) This ...
7
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3answers
3k views

How to import a plain private key into Parity?

Basically the parity version of this. Can Parity import raw private keys or Geth keystore files?
7
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1answer
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How to import a account from testnet?

I recently traded BTC for 1 Ether using shapeshift.io The transaction was successful, but there is no record of Ether in my local account. Here is the tx reference. I fear that I have made a ...
6
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3answers
328 views

Can I transfer the funds from an account with just the account number and password?

I have lost all the files from an Ethereum node where I had an account with some ether in it (I know I should have backed it up). Given than I know the account number and the password, can I transfer ...
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2answers
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How can contract ownership be transferred from one account to another?

I have a contract belonging to one of my accounts. How can I transfer ownership to another account?
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2answers
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How to list accounts / addresses?

I'm working on some code right now that scans the blockchain block by block. During that process I catalog new addresses as I encounter them in the TX list with each block. Is there any other way to ...
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0answers
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Ethereum wallet shows “no accounts yet” and 0.00 balance [duplicate]

I last used Ethereum wallet in June or July this year. Yesterday I upgraded on macOS to 0.8.7. It is syncing very slowly; at this rate it will take a week to finish the remaining 189,000 blocks. In ...
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1answer
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Is it possible to get the transaction count for a contract in Solidity?

Is there built-in functionality for getting the transaction count (nonce) for an account in Solidity?
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5answers
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How to spend ether from multiple accounts?

I would like to know how to send ether from multiple accounts. For example, suppose I have 3 accounts with 5 ether in each account, how do I send the total (15 ether) to an account in a single ...
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Accounts can't display incoming transactions

In Ethereum-Mist_wallet, Under accounts, I see: Accounts can't display incoming transactions, but hold and send ether. To see incoming transactions create a wallet contract to store ether. What ...
7
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1answer
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MIST - How to send all coins in account

Mist shows that I have 1 ETH in my account. When I check etherscan see exactly 0.99895 ether in my account.... I would like to send all 0.99895 ether to another address. When I try to send exactly ...
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2answers
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Recieve payments in Ethereum ERC-20 tokens in web-services

I want to receive payments in my web-service in ethereum tokens, for example, Eos or Rep. And, of course, I must provide each user with different addresses for payment to determine who is the payer, ...
3
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1answer
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How do I get a list of accounts from my Ledger Nano S wallet, including unused accounts?

geth lists the non-zero balance accounts and the next zero balance account from your Ledger Nano. How can I get a list of accounts from my Ledger Nano S wallet, including the next block of unused ...
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Do I have to unlock my account in geth to call a web3.eth.sign() in JavaScript?

I have: A geth account Access to web3 API I want to: Invoke the function, web3.eth.sign(coinbase, sha) If I put this in a javascript file sign.js, and I call node.js, will it sign my message? Or ...
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825 views

What happens if you transfer real tokens to a test account?

What happens if you transfer real tokens to a test account? The Ethereum wallet says that you shouldn't do it, but it doesn't say why.
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1answer
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Different way of creating account

I have created one account using the command geth account new , name acc1 and another under the geth console using the command personal.newAccount() name it acc2. Now i am not able to see the acc1 ...
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2answers
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web3.accounts.create() is not a function

I want to create a new account via code (Node.js), so I ran the following code, which was copy-pasted from the docs: web3.eth.accounts.create(); How ever accounts' value is an empty array, and ...
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2answers
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What is an 'EOA' account?

Cointelegraph has recently written about 'EOA' in relation with contracts and accounts. As an EOA, the state simply stores the account's balance in ether and a sequence number is used to prevent ...
11
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1answer
780 views

Parity account addresses all having prefix 0x00

After creating multiple new accounts with the Parity wallet (v1.6.6), I notice they all have the address prefix 0x00 (the 0x part being the obvious hexadecimal prefix), for example ...
11
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1answer
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Is an Account in MetaMask the same as an Ethereum Account (EOA)?

First, my setup: I use the Azure Ethereum Consortium Template, which creates one transaction node and two mining nodes in my configuration. I use MetaMask Chrome plugin to accept transactions, which I ...
8
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1answer
547 views

Testnet First Transaction Nonce

I'm implementing a back end with different Ethereum features. I need to be able to create raw transactions. I've successfully did it using Web3 sendRawTransaction from Node.JS, but I wonder how should ...
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1answer
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How can I generate a V3 of the Ethereum wallet file format in js, from strings: 'Passphrase' and 'Email or username' required by Quorumwallet?

Quorum Wallet prompts for a Passphrase and a Email or username to generate the account. On the FAQs there is a description of the algorithm to generate the account: What is the algorithm used to ...
7
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1answer
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Is there a recommended / secure way to unlock an account through Web3 interface / HTML page securely?

This question was asked on Reddit: Is there a secure/recommended solution to unlock an account and send a tx through the Web3 interface (from a Html page)? One of the alternatives that I have ...
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2answers
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How many Ethereum contracts have been published?

Is there a place to see how many Ethereum contracts have been published? If someone wanted to calculate that, it would just be total number of accounts minus accounts with code, right? Any ...
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2answers
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Is it safe to generate an account with 256 coin flips?

Suppose one generates an account with the following procedure: Flip a coin 256 times; On a paper, write each heads as 1 and each tails as 0; Convert the 256-bit string to hex by mapping each 4-bit ...
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1answer
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List all ethereum accounts using geth [duplicate]

Etherscan displays all accounts in ethereum being used in the following section https://etherscan.io/accounts Question: How can I get a list of all active ethereum accounts using geth? Possible ...
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2answers
870 views

How do I transfer funds to another account from a lightwallet.dat file

I have a lightwallet.dat file which I exported from ujomusic.com. It's in a different format to that used by geth. I don't expect geth will import it so can I create an account with the same number as ...
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1answer
477 views

How to setup the account manager type to sign transactions in Go?

TL;DR: I've setup a private Ethereum node, and I want to send a signed transaction to it. By reading the docs I know that there's an account Manager type which can access a Wallet type which has a ...
2
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1answer
968 views

Can I deploy a contract to an arbitrary address that I choose?

If I want to create a smart contract by executing a raw tx, is it mandatory to compute the new contracts address the way it's been defined, or could I pick my own address arbitrarly? Why?
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1answer
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code -32000 message: account is locked

I am trying to withdraw some coins from my wallet (as I have done several times prior) but this time I am prompted with the error: {0x0000000000000000000000000000000000000000", value: web3.toWei(1, "...
0
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1answer
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Does the latest version of geth does not create geth.ipc? [duplicate]

I have seen similar question about the geth.ipc file (I can't find my geth.ipc), I am on Windows 7. I am not able to see geth.ipc file after running geth as said in the other question thread, ...
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1answer
264 views

How was the state-bloat attack that led to the EIP 150 hardfork performed?

I understand that SELFDESTRUCT and mispricing of opcodes allowed many empty accounts to be created cheaply as explained in Why were empty accounts allowed to be on the blockchain? The answer to that ...
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1answer
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Why aren't my accounts / keystore files showing up in Mist / Etheruem Wallet?

I recently upgraded to 0.7.4 (Windows) and all my accounts are gone. In the keystore folder, I can see what I think are my keys. However they are not being auto loaded. When I went from 0.6.1 to 0.7....
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2answers
4k views

Error: account is locked. Attempting to send ether from one account to another, Local Node on Private Blockchain

What is the correct process to unlock an account? I was able to do this successfully in the geth console(see this post for more details on what I've tried Why does account show 0 balance, after ...
5
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1answer
697 views

During which blocks did the DDos attack create millions of empty accounts?

This post (Why were empty accounts allowed to be on the blockchain?) discusses the Ddos attack from fall 2016. It mentions that nearly 20,000,000 account were created and then immediately deleted ...
5
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1answer
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How compatible are ICAP addresses with HD wallets?

A Hierarchical Deterministic (HD) wallet has some nice features such as easier backup (instead of needing to backup multiple keystore files and the passwords for each of them). Since ICAP addresses ...
5
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1answer
208 views

Can a user send a transaction using my website frontend with an account which is not in my node?

Can a user send a transaction using my website frontend with an account which is not in my node? The solution to this problem could be create an account for every user in my platform, but I think ...
5
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1answer
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Does ethereum support something like bip32 extended public key?

Bitcoin and Litecoin have something called XPUB key or Extended Public Key that essentially allows to track all generated public addresses, so think monitor your total balance in one key. I was ...
4
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1answer
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How can empty accounts with a nonce of zero appear on the blockchain?

Recently I have heard about zero balance accounts with a nonce of zero appearing on the blockchain. My understanding is that any account that has been used in a transaction must have a nonce greater ...
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2answers
3k views

Is it possible in theory to generate the private key for the 0x0000000000000000000000000000000000000000 wallet?

Is there any chance, although extremely low, to generate the private key for the 0x0000000000000000000000000000000000000000 wallet? Does the system allow it at all?
4
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1answer
649 views

Contract size limit after creation?

For example, lets consider the basic example of issuing a token: ...string public symbol; uint8 public decimals; uint256 public totalSupply; mapping (address => uint256) public balanceOf; ...
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1answer
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What options are suitable for Ethereum addresses with checksums?

Since Ethereum addresses don't have checksums, should ICAP addresses (which do have a checksum) be proliferated? Or are there other options more suitable for the proliferation of checksummed ...
3
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1answer
990 views

What is the purpose of multiple addresses in a wallet?

In eth-lightwallet from consensys there is a function generateNewAddress. What is the purpose of having multiple addresses for the same account? I can think of a few usages: accounting solution: 1 ...
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0answers
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What is an empty account if the state root is not empty?

"State-bloat" attacks led to an empty account being defined as an account that has zero balance, nonce and code. There was a disagreement on EIP 161: I disagree. An account should be considered ...
2
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1answer
180 views

How can I use Internet to carry out transactions that I do from geth console?

I have read RPC communications from Internet can be forwarded to geth console. But I have no hint on How? How can I use rpc port to carry out transactions over Internet that I performed using geth ...