All Questions
Tagged with transactions ether
204 questions
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Recover Lost Funds from Botched ETH Deposit Without Access to Private Keys?
I'm using the wei approach (4 right-most zeros) as a marker to track user deposits on my site. In short, every user on the site is told to append a custom amount of "wei" to every deposit ...
- 191
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1
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66
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Why is sending ETH from multiple accounts in a single transaction deemed a "security hole"?
A user on Ethereum SE posted the following
As you noticed, there is no way to send a single from multiple
addresses. There is always just one sender.
For Ether transfers the Ether value is always ...
- 30.3k
1
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1
answer
3k
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Is 21,000 Gas Limit Fixed Only for Ethereum?
I was reading a comment on another post on Ethereum SE and found the following statement:
21,000 is for sending Ether, not anything else.
The user suggested to "just set it to a large enough ...
- 6,082
1
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1
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134
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Pros & Cons of Using the "wei" Method to Track User Deposits in Ethereum
With Ethereum it's notoriously difficult to accept deposits from many users due high operational costs for making new ETH addresses. On the other hand, if all users of a service send ETH to one ...
- 30.3k
1
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1
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124
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Maximum GAS price
When I launch an Ethereum transaction, I have to choose how much WEI I am able to pay for one GAS.
This is a "bid" concept: If my transaction is very important and if I want to run it ...
- 18.3k
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0
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22
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How to find out what happened with a contract transaction
I have a question regarding one transaction which happened at the 17th of January 2018: https://etherscan.io/tx/0xabe5ac6176e1096bf4fbfa983cb8b04262ae1d57daf94ebb1668b5d45e3145f4 It should be ...
- 101
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1
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132
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Trying first transfer contract in solidity
So i´ve been experimenting with Solidity and Remix and i wanted to and a simple while loop to the .transfer and .balance method. While being able to deploy the contract, I can´t seem to be able to ...
- 30.3k
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39
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Do I absolutely have to do mining to make transactions done on testnet?
As I know, we don't have to mine to make transactions done in Bitcoin testnet, but in ethereum testnet, we need to mine to make them done.
Are there any ways to make them done without mining?
CommunityBot
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1
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what is the cheapest way for sending ethereum from 10 account addresses to 10 account addresses?
What is the cheapest way to send ether to 10 addresses? By using smart contract or using externally owned account to send one by one...? I know that the gas limit of a normal transaction is 21,000......
- 18.3k
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1
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771
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What is mined? Transaction or block?
Until today, I thought the transactions are just gathered until big enough to construct a block. Once it is constructed, the ethereum miner will race to find a secret nonce, and the block will be ...
- 4,352
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How to get the type of transaction (Send/Receive/Approve/Swap) and the ERC20 tokens involved in that transaction?
I', getting to know the Ethereum technology (so rookie level). By far, with the free APIs (etherscan.io, ethplorer.io, coingecko) I have been able to build a "watch wallet". It looks like ...
- 542
4
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1
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2k
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What means relay in ethereum?
What is relay in ethereum?For doing transactions, any difference? I am not sure the concept of relay, it looks like one account can pay gas for transaction on another account.
CommunityBot
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6
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4
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12k
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Getting notified after receiving tokens
Is there any way to get a notification(PN, Email etc.) when one receives ETH or tokens issued on ethereum?
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1
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1k
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Ethereum transaction with multi input and multi output like bitcoin
What happens to my wallet when I only 1000 accounts with 0.0001 ether and the tx-fee is about the same, I can't spend anything anymore?
- 30.3k
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1
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130
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How to send ethers from multiple accounts to a single recipient?
I want to transfer 1 ETH distributed to three addresses to a single recipient address. How can I achieve this in ethers.js
eth♦
- 86.5k
4
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1
answer
3k
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Calculate transaction costs for storing data
I'm trying to figure out how the transaction costs are calculated for a transaction that is storing data on the Ethereum Blockchain. It seems I'm always off. Here is my way of calculating (I'm using ...
- 26.2k
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1
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2k
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multiple transfer?
First of all, hello. we will write a token for a project we have developed. We are creating new tokens, we want to write a simple contract on remix ethereum. We will distribute a large portion of the ...
2
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3
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764
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understanding value on token transfer transaction
When a token transfer transaction has an ether price associated with it, is it fair to assume that that transaction used ether to buy the tokens?
For example, this transacion triggered by account A ...
CommunityBot
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6
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1
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2k
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My friend sent me a screenshot of a transaction hash, but when I search for it I find divergent data. What happened?
This is the transaction hash:
0x90e923ee01d9dfeb95ee176819eeec67d247fc6cb009c8cdc4d8ae1939e5ecc6
And this is the screenshot my friend sent me:
If you check the hash in Etherscan, some informations ...
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2
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1
answer
1k
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Why do transaction receipts not include the value of Ether transferred?
I'm writing some logic to identify the currency used in an ethereum transaction, and am wondering the following:
web3.eth.getTransaction returns a value field that indicates the value transferred in ...
eth♦
- 86.5k
8
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2
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2k
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Smart contract based betting — protection against depreciation
Let’s say I want to enter into a bet with my friend — if it rains 10 days from now, I will pay him $100; if it doesn’t, he will pay me $100.
Would it be possible to take advantage of smart contract ...
0
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0
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264
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How to know weather ETH or some token like USDT is transfered in smart contract transaction
From last two weeks I am stuck on, I want to know in smart contract transaction either ETH is transfered or some token like USDT below is the JSON of transaction hash.
I am working with DotNet core ...
2
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1
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2k
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How to split funds in single send transaction
Scenario:
Alice Account = 2 ETH
Admin Account = 0 ETH
Bob Account = 0 ETH
Alice wants to send 1 ETH to Bob using my application. Application will charge 0.01 ETH as it's commission and will be ...
1
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1
answer
107
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Gas cost for contract transaction called form external
If I call my contract and ask it to send x amount of ether to another account y, I know i have to pay a transaction cost.
Will the contract also have to pay any amount while sending the ether to the ...
- 18.3k
1
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1
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532
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I've given Gwei less than 0.1 for a transaction, and it's been an hour, and it is not showing up in etherscan!
I know I pretty much messed up with Gwei, I've given it < 0.1. My doubt is if the transaction gets failed will the funds get back to my wallet or lost forever and how much time will it take for the ...
- 59
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2
answers
3k
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Reason for check of msg.value > 0
I came across published smart contracts (like this one from ConsensSys) that check whether msg.value is strictly larger than zero in their payable functions.
After wondering whether msg.value can be ...
- 26.2k
1
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1
answer
584
views
Can I get the timestamp for a transaction added to mempool?
Can I get the time stamp on when a transaction was added to the mempool and when it was successfully added to a block?
Is there an API to do this?
- 18.3k
1
vote
1
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1k
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Ethereum transaction fails in simultaneous calls
I am making two calls simultaneous call with a single wallet. First I am making a contract call then I am making a ether transaction call. The first call succeeds, but the next call fails. I got this ...
- 18.3k
0
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1
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197
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Using web3js apis for ethereum transactions
I want to use Web3.js APIs to create an Ethereum transaction from an address (not a smart contract) to another address using sendTransaction method (https://web3js.readthedocs.io/en/1.0/web3-eth.html#...
CommunityBot
- 1
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1
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60
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Ethers in a light node
Since a light node makes transactions from a connected full node, does a light node need ethers to make transactions or it uses the ethers from the full node?
- 28.1k
0
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1
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70
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How to make transaction of some ether in Buyer Seller type of contract?
In this I have set modifier (msg.sender == sellerAddress) which is not valid.
But in this scenario, I want to allow only and only sellerAddress to take ether from my contract. How can I allow only ...
- 2,147
2
votes
1
answer
1k
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Transfer from multiple inputs
Is there a way to send ether from several input addresses in one transaction WITHOUT the use of smart contracts? I wish that different transactions could not be linked to each other. A similar ...
- 10.5k
1
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1
answer
734
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Smart Contracts without ETH Transactions
Maybe I'm wrong, but I understand that Smart Contract Transactions must always contain a "VALUE" field, that's to say, the amount of Ether Alice will transfer to Bob in case certain condition ...
- 55.6k
0
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2
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154
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Can I have someone submit my transaction to the network, so I don't have to pay the gas fee (in ether)?
My account is a new account with 0 ether. I just received 100 of ERC20 tokens. I would like to send these 100 tokens to the other account. However, since this account does not have any ether in it, so ...
- 2,161
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0
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235
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How to call hash function in solidity to free a stuck smart contract?
I was selling an altcoin on Etherdelta using a sell order and 3 transactions went through however the ethereum did not show up in my wallet. I contacted support and they say that "your altcoin is ...
- 18.3k
2
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2
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196
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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 ...
eth♦
- 86.5k
3
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0
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2k
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Web3 - how to send transaction with some data and include Ether at the same time?
Using web3 0.20.3
I want to call function and send some Etherium at the same time.
JavaScript
Contract = web3.eth.contract(ABI);
Instance = Contract.at('0x162b74ea16da6ae9d7f7b349eaeab2fcadf4e835')...
CommunityBot
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4
votes
2
answers
4k
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RangeError: private key length is invalid (In New ETH Transaction pragmatically)
Followed this Ans
Ans1 and Ans2 but no solution got.
const web3 = new Web3('https://ropsten.infura.io/v3/3c52917848e945229c0d33d632b10490');
const account1 = '...
- 201
3
votes
1
answer
828
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Can't Send ETH out of my Mist ETH wallet
I tried to send some ETHs to another account (i tried different crypto based exchanges) from MIST Wallet but with no success. The amount of ETH in my wallet remains the same and no ETH show up in the ...
CommunityBot
- 1
1
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0
answers
18
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What happens to the missing coins in this transaction? Copy paste this code into remix to reproduce my original bug. Thank you
pragma solidity ^0.4.24;
contract TheCaseOfTHeMissingCoins{
string public name;
string public symbol;
uint8 public decimals = 18;
address public owner;
mapping (address => ...
- 55.6k
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1
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2k
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How to find, whose ETH address it is? [closed]
Is it possible to get personal information of a person using his ETH wallet address?
I did sell my ETH to one person, due to a technical glitch, multiple ETH transaction happened without my ...
- 10k
3
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1
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3k
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How much ether I should have in my wallet to send 1 ETH to an ICO
I need to send 1 ETH to an ICO. I have 1 ETH in my wallet. I am using myetherwallet.com
Question .
If I send 1ETH to the contract address, will it fail for insufficient fee amount ?
How much do I ...
- 5,819
5
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1
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2k
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what is difference between "gas" "gas price" and "fee"?
Can we say that gas is the unit of transaction fee ?
And gas price is the same transaction fee ?
If so, why we do not use ether and wei instead of gas ?
- 18.8k
2
votes
2
answers
4k
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How to send transaction to Infura node using Web3? [duplicate]
I want to send ETH from one account to another using Web3 interface and Infura node. I have tried like below, and I got error 405(). Error: Invalid JSON RPC response: ""
I test it in Rinkeby test ...
CommunityBot
- 1
2
votes
1
answer
76
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How does ether transfer processed [duplicate]
I want to understand deeply how ether transfer processed and how 21000 of gas determined. Is this a simple constant fee of the transfer transaction or ether transfer transaction is the some predefined ...
- 8,078
2
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3
answers
414
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What happens if already processed transaction is submitted to the network again?
I have a script that sends transactions automatically using JSON RPC API call eth_sendRawTransaction to a node that has RPC enabled.
My question is, what is going to happen if I send these ...
- 564
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2
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4k
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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 ...
- 163
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1
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505
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ERC20 Transactions - how to pay for the gas?
So I have an ERC20 token, which I'm creating a wallet to send it from one address to the other.
I understand that I have to pay for the gas in this transaction using Ether, but my question is: how is ...
- 4,230
0
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1
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92
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Ether transaction
I want email notification whenever any transaction happened in my ether wallet. Is it possible?
Is opt verification possible for any type of outgoing transaction from my ether wallet?
- 1,688
4
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1
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783
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Does an ethereum node save all transaction history?
I know that a full node keeps the record of a state tree, and in every block there's a list of transactions. My question is, does a full node have to keep all the tx lists? The state tree already ...
- 7,539