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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472 views

Ethereum wallet Vs Ethereum account?

I created an Ethereum node (geth) and this automatically created an Ethereum account. Is this account an Ethereum wallet? I then created 2 other accounts using personal.newAccount() command. Are these ...
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1answer
91 views

Both web3.eth.accounts.create() and web3.eth.personal.newAccount() not working

I'm making a dApp on reactjs. I wanted to create a new account and have done it trying 2 methods this.web3.eth.personal.newAccount() this.web3.eth.accounts.create() I have attached the code below(...
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3answers
151 views

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 ...
0
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1answer
829 views

How to use not personal account web3

In my previous post I got answer but still I need some clarifications let say when deploying contract with node js we have this line try { web3.personal.unlockAccount(web3.eth.coinbase, ...
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2answers
1k views

JSON RPC get address balance

I'm trying to get the ether balance for any ethereum address. I've set up a node with the Ethereum daemon, but as far as I can tell, using eth_getBalance you can only get the balance of your own ...
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1answer
1k 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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4answers
488 views

How to implement a watching wallet for thousands/millions of addresses

I need to check for customers' deposits and need to scan for receiving transactions for those addresses for Ether and in next step ERC-20 tokens. What's the most efficient way to do this with go-...
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2answers
46 views

Reinstalled MetaMask, account lost?

I had 3 accounts under my MetaMask Chrome extension. One of them had some small deposit. I have reinstalled the extension and used seed phrase to get access again. However, I can see only one account (...
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1answer
35 views

Where is storaged the publickey for any account?

I have been reading the Ethereum Yellow paperthat for any account there are four parameters: nonce balance storageRoot codeHash A transaction is signed using three parameters: r,s,v According to ...
112
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4answers
76k views

How are ethereum addresses generated?

What criteria does a valid Ethereum address need to fulfill? Is it just a random number in hexadecimal? Or does it need to be derived in a specific way, according to some cryptographic algorithms? ...
0
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1answer
395 views

Web3.js unable to unlock account to call smart contract

I am using web3.js 0.20.6 and I want to unlock an account to execute a smart contract method on a private blockchain. The account is used to pay for the gas. I have used the following code to unlock ...
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2answers
277 views

Ethereum wallet backup doesn't produce any files

I'm using ethereum wallet on windows 10. I have one account and I'm attempting to produce a backup of it. I do Accounts > Backup > Accounts and the file browser comes up, showing a directory ...
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1answer
16 views

private key vs seed

I made an extra account in Metamask for my GF, I kept Account 1 for myself and I gave only the private key of Account 2 to my GF. I kept the seed words only to myself. Since then, she has dumped me ...
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2answers
323 views

How to create unique contribution addresses for a referral system by smartcontract

I ran into some trouble with my smartcontract. I want to be able to allocate referral tokens to each person who participated in the ICO referral program. In order to do this, the smart contract must ...
1
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1answer
1k views

rinkeby balance says 0 after syncing even though transaction shows ether was sent

I'm using truffle to deploy a contract on the rinkeby testnet Here is transaction info saying that my address received ether however as shown below, the balance still shows as 0. truffle(rinkeby)...
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3answers
20k views

How to explore all transactions for a given account?

After beeing able to check account balances, I am looking for a method to list all transactions for a given Ethereum account through json-rpc protocol. I haven't found any method suitable for that on ...
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2answers
2k views

Error: etherbase address must be explicitly specified

When I make a RPC to geth running remotely, I cannot get the account list / balance of the account. It also says that the coinbase is not set. But as far as I know, isnt the coinbase supposed to be ...
4
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1answer
358 views

Create new account over IPC

I want to create a new account over IPC so I have started private chain with the below command geth --networkid=5 --datadir DataDir --ipcapi "db,eth,net,web3,personal" --ipcpath "/Users/smartSense/....
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4answers
4k views

How does a contract find out if another address is a contract?

Is it possible, from within a contract written in Solidity, to check if a contract is placed on a specific address or if this address does not contain any code?
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1answer
96 views

How many non-empty accounts are there?

I am researching into the statistics of Ethereum and I an looking for a datum of how many non-zero balance account currently exist in Ethereum? I know that in total 30M of accounts were created but ...
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2answers
2k views

How to preallocate multiple accounts with ether for geth --dev chain?

I'm trying to set up a private chain with geth using --dev that has several accounts with lots of ether. It seems unclear if this is possible anymore according to this. Here's what I tried on geth 1....
0
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1answer
25 views

Can I add my own fields to JSON files in the keystore directory?

I need to add a few fields to JSON v3 wallet file, can I do it ? What is Ethereum's policy on this? For example, to add account name I would do something like this: { "address": "...
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3answers
7k views

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 ...
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3answers
8k views

Difference between Ganache and Truffle

What is the difference between this two? I understand that Ganache is like a fake blockchain, but Truffle has that too ? What are the limitations of each and under which circumstance we use either ...
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0answers
39 views

Unable to Unlock Account Even After specifying allow-insecure-unlock

Software: Ubuntu on VirtualBox Update, tried putting two dashes, on allow-insecure-unlock, doesn't work solidity@solidity:~$ geth attach http://127.0.0.1:8545 --allow-insecure-unlock Incorrect Usage:...
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2answers
54 views

What do I need to log into Geth?

I had to reformat my OS since the last time I did any mining and so I don’t have any of the data originally on my HD. I do have my Geth account # and assuming I can remember my password is that ...
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1answer
40 views

How do i create account remotely?

I have two servers, one for eth-node, one for web api and user db. I want to send request to create account from web server to eth server, but i see it can be created by running command like geth ...
0
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1answer
82 views

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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1answer
247 views

Importing accounts into geth from metamask

I Have entered into my geth console geth eth.accounts ["0xf844f0d7acb0d01bf66ffd81809fb96b2236abce", "0xc8d94cb87173fc94c4b165e44a5fc0b047618044", "0x6a0ef1a429c3570cb342963d309dd5aaa9e49cd4", "...
0
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1answer
60 views

When closing node (geth ropsten) I cannot save created accounts

I am pretty new to this. I downloaded the ropsten blockchain using a geth command line. Then, using Truffle, I created an account, but when I closed my node (ctrl - c on the geth command line) and ...
0
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1answer
37 views

Unlock Ethereum account via infura

I am trying to connect my wallet (Metamask) via Infura, but I receiving an error. My code: [HttpPost] public async Task<IActionResult> LoginAsync([ModelBinder(typeof(AccountBinder))] ...
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2answers
273 views

Is there a way to set specific account when using truffle console rinkeby?

When I tested on ganache-cli at local, I could test on 'truffle console development' with some accounts which ganache-cli gave. But at rinkeby, I can't use function_name(argumets, {from: specific ...
0
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1answer
118 views

When I recreate an Account using a Mnemonic, will it also bring back its private key?

I guess my Question is straight-forward, I would like to know if using a Mnemonic to recreate or import an Ethereum (external) Account will actually make or "bring back" the whole KeyPair (public and ...
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2answers
205 views

Ethereum Miner validation

I have created a private block chain with three Peers. Peer A is having an account which is having 20 ether. Now I am trying send 21 ether from peer A's account to peer B's Account. It is not throwing ...
38
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3answers
16k views

Get public key of any ethereum account

Can I somehow get the public key of an ethereum account knowing just the corresponding ethereum address (e.g. 0x54dbb737eac5007103e729e9ab7ce64a6850a310)?
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2answers
132 views

Original genesis.json file for ethereum mainnet, which should have 314 accounts allocation?

314 accounts are created at the start of ethereum frontier release and some funds were alloted to them. https://www.etherchain.org/charts/totalAccounts where can I get the genesis.json file used to ...
0
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1answer
38 views

Geth + Web3 | web3.eth.getAccounts() returns undefined

I have follow this SO answer for sending ERC20 tokens from 1 address to another. I am running into an issue where I am receiving an error that my from address is invalid Error: Error: ...
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2answers
341 views

How can I synchronize account between geth servers?

I have setup geth in 2 servers as a private testing Etheruem environment. In the 1st server, I have created accounts. For the 2nd server, I would like to build as a node to attach the 1st server. ...
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3answers
196 views

Alternatives to Metamask

What are existing alternatives to metamask with that works online inside existing browsers, that don't require installing a browser extension? What are some of the tradeoffs between them?
0
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1answer
241 views

Local account to local node

If I create my wallet / accounts client-side with web3.eth.accounts how can I "publish" them on my local node? For example, I want to send some ether with an eth faucet to the first created account. ...
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0answers
34 views

getAccounts undefined recently

I've been using web3 v 0.20 and I recently noticed that getting accounts from web3.eth.getAccounts(function(error, accounts) { returns undefined. Is Metamask 7.2.1 forcing it to be undefined for ...
4
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1answer
2k views

Difference between Account Extended Private Key and BIP32 Extended Private Key

I was using this this useful tool to verify that my wallet generation process was accurate, however when I thought I was generating an Account Extended Private Key, I realized I was actually ...
0
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1answer
275 views

how to import UTC-JSON file through web3-eth methods

hey I am working on ethereum wallet. in this i want to import my account through UTC json file, but i didn't find any solution for this in web3-eth command someone can please help to find out the ...
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2answers
214 views

How to check Ethereum smart contract info?

I want to know 3 things: Is an address a smart contract? Is this smart contract an ERC20 or ERC721 token? Is the Solidity code public?
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0answers
18 views

Which one is more secure and easier to mange among eth.accounts.create, personal.newAccount & eth.accounts.wallet.add

Here are what I knew about them: eth.accounts.create: Generate an address and private key for transaction but did not stored in anywhere. personal.newAccount: Create an account under node, so that ...
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1answer
27 views

How to call a function with params and check them

I want to create a smart contract that users can send a number to and receive an amount of ether. function airdrop(uint val) public payable { require(airdrop == true); if (val == 0x31){ ...
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3answers
233 views

How smart contract transactions work?

I read that smart contracts don’t have a private key, so they can’t sign a transaction. My question is: when a smart contract starts a transaction to an EOA, how are we sure that the smart contract ...
0
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1answer
286 views

Unable to unlock account created by php script

I'm using geth over rpc in my php script for a website. In my script I've created a random passphrase that I store in a file so I can use it later to unlock the account. So, to keep thing simple I ...
12
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4answers
6k views

How to transfer the whole balance of an account?

If I have an account with 5 ETH, can I send the full account balance of 5ETH to another account and have exactly 5ETH received on the second account ? I understood that it will fail because I have no ...
2
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2answers
1k views

How to add a wallet to your geth account list

I just created a new account on myetherwallet.com and installed geth on windows. I opened cmd and typed in 'cd/' and typed 'geth account list'. In return, I got a warning saying there's no etherbase ...