All Questions
Tagged with addresses transactions
84 questions
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Etherscan.io Verification Addresses
It's taking me a long time to verify addresses on Etherscan.io Can someone give me a solution for verifying contract addresses?
1
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1
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120
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fetching address label from transaction info
while fetching transaction JSON for the given address, I want to fetch the address label associated with the address, for example, here's an example of how Moralis streams provide it for EVM chains,
{...
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0
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45
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Nethereum listen to an event after send transaction
Solidity code for creating a new contract calling createRainfallPolicy:
event PolicyCreated(address _policy, string _insuredId);
function createRainfallPolicy(/*Params*/) public {
RainfallPolicy ...
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0
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1
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426
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Retrieve sender public key from ethereum transactions
I have tried using the eth_account library but it doesnt work on newer transactions (type 0x02 transactions). What is a method of retrieval that would work on those transactions?
from eth_account....
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2
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69
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Get addresses of transfers from transactions Web3Py
I am facing issue while trying to retreive data from Goerli (basically, Ethereum). I am trying to fetch transaction from this contract. For every transaction it creates a new airdrop by creating a new ...
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187
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Checking for a transaction on a large number of bsc addresses
I need to frequently check a large number of addresses for transactions on the bsc network (at least a thousand per second), what is the best way to do this? The only solution I know of is to run my ...
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2
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518
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A quick way to check if there are transactions at an address
I need to frequently check a large number of addresses for transactions on them (i.e. whether the address is active) and do it as quickly as possible. I plan to download a dump of addresses with ...
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1
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1k
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Checking new transactions for a specific wallet using Web3py
I am trying to make a piece of code that scans a wallet for new transactions. When a new transaction is detected my code should print the transaction hash.
I looked online and saw stuff about the ...
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104
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Why is the TransactionByHash function in the go-ethereum client unable to return the sender?
I learned how to get the sender's address from this question. JSON-RPC returns a result with a from field, which we can unmarshal in our struct.
But I'm curious why go-ethereum didn't return ...
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1
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34
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Transactions with my contract are older than the contract itself
I have recently started my blockchain development journey and I can't seem to find an answer to my question.
I have deployed a new contract (the same way as I did a few before) on 19.09.2022 13:25 yet ...
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1
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145
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How to prove that a certain payment has been made by a certain user?
I have a website in the beta stage, on which users will be able to pay by crypto. Out of simplicity and for now, I want to use a single address and verify the payments manually because there won't be ...
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3
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6k
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The same wallet address on the Mainnet Ethereum network and on the Polygon network. Are these two different wallets with two different owners?
I want to transfer some matic (Polygon network) to an Ethereum wallet address I know. But I don't know the address of this wallet on the Polygon network, I know its address on the Ethereum Mainnet.
...
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1
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504
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Why is the method in receive() external payable{this.withdraw Funds();} not called in Solidity?
I wrote a smart contract that, when receiving money to my address, should automatically transfer 50% to the 1st wallet address, 25% to the second, 25% to the third.
For some reason it doesn't do it ...
- 129
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45
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How to make it so that when money comes to the Metamask wallet, they are automatically redirected to this smart contract? [duplicate]
I wrote a smart contract on Solidity, which, when receiving money to its address, redirects 50% to the first wallet, 25% to the second wallet.
How to make it so that when money comes to the Metamask ...
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1
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1
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760
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How to transfer ethers from a contract to another SPECIFIC address?
I want to write a smart contract that, when receiving money, transfers 50% to a specific address of the first wallet (0x583031D1113aD414F02576BD6afaBfb302140225)
and transfers 25% to a specific ...
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1
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26
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I am trying to write a smart contract for a defy-Bank as a project. i can't figure out why hasTransfered() function not getting executed?
Smart contract code:
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.7.0 <0.9.0;
contract AddressWallets {
// variables
address owner;
uint funds;
bool transferFund;
...
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1
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220
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I don't know where my Ethereum went, or what wallet I created... how can i transfer it to a new wallet?
Going back a few years I made a purchase that is visible in Etherscan. But I am clueless as to where it went, what I bought or where it is now? All I've realised is that I'm as naieve now as I was ...
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2
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1
answer
1k
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How to encode empty transaction fields?
I want to RLP-encode a(n unsigned) transaction. Some fields of the transaction can be empty/null/zero. I want to know how they are encoded, though.
Let's assume the following transaction fields:
...
- 33k
0
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1
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329
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What is and where to see in transaction in Etherscan the fields result.contractAddress and result.confirmations in API?
When I download data from a contract using API there are 2 fields that i cannot understand in which part of transaction in Etherscan are these numbers and maybe give me the definition of those fields:
...
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1
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59
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Someone sent me .69 eth from a coinbase account. Should I be concerned? [closed]
Im noobish tbh, should I move everything to a hardware wallet? Should I move the eth out of the act so they cant take anything? Im sure I couldve been hacked somehow and someone got my keys. Any ideas?...
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1
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121
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Handing over an address in solidity an saving it
pragma solidity 0.5.1;
contract WissenschaftlicheArbeit {
string titel;
string autor;
string pfad;
string hashcode;
bool isSignt = false;
address adresseDesPruefers;
...
1
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1
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117
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How can a customer prove me that he owns a certain address and made a certain transaction?
In my e-shops there may be situations when a customer sent me coins but forgot to add secret order pin code in the memo. In such cases he'd contact me via email and claim that a certain transaction ...
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1
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319
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I sent a token to a contract address by mistake. can I recover, and how to recover if I can
I sent some CryptoPunk Tokens to it's contract address, while I was traying to move it to my trust wallet from coinbase wallet. Here is the details of the transaction https://etherscan.io/tx/...
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1
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566
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Transaction works or fails depending on the destination address
I was trying to make a deal with another user and he sent me this address:
0xb1f4c727afa220eec5d218399eb443662ab2610e
But when I tried to do the transfer I received this error
TypeError: Transaction ...
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2
votes
1
answer
629
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Cancelled Transaction in MetaMask USDC leads to loss of funds
I had attempted to transfer 992 USDC from MetaMask to a Ledger Account but had decided to cancel the transaction. On cancelling, MetaMask reports that the cancellation succeeded, but my MetaMask USDC ...
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2
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1
answer
631
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How is it possible for Centre and the like to blacklist Ethereum addresses when they themselves are not miners/validators?
There is no shortage of the news on stablecoin censorship, in particular blacklisting of Ethereum addresses:
Tether has been blacklisting Ethereum addresses that hold USDT for a couple of years now—...
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1
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0
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98
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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 ...
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1
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1
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231
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How do I retrieve funds sent to wrong address that doesn’t exist [duplicate]
I sent some funds to my MEW wallet but I fat fingered the address and sent it to a different address that does not seem to exist. How do I claim that address to retrieve funds I see sitting in the ...
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1
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42
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any 3rd party service that can get all transaction?
3rd party service recommended
have any 3rd party service that can get all transaction of address?
because from my research the web3 cant get the full transaction by account.
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4
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1
answer
4k
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Uniswap v2 pair before liquidity add
I have a token contract and I want to add liquidity to Uniswap (mytoken + ETH).
Before that, I would like to know the pair address in order to set it in my contract.
Is it possible to create a pair on ...
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14
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1
answer
21k
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how to get list of transactions history about specific contract address using web3?
I really don't know how to get a list of transactions history about specific contract address using web3.py
and I use Infura HTTPProvider
I just have only one 'contract address'.
Can i get information ...
- 143
4
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3
answers
3k
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Simple way to find the exact address / transaction by the part of the address / transaction hash?
Imagine I have only a part of the address, for example, 0xa2793n. The rest of the address is unknown. Is there any indexer, that stores this information in any suitable format, so I can find the list ...
- 1,360
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1
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375
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How msg.sender address gets generated in smartcontract?
msg.sender (address): the sender of the message (current call).
Considering a scenario where a user uses a smart contract and try to perform a transaction. For that particular user msg.sender is the ...
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755
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How can a Smart Contract pull an amount of Ether equal to its own balance from an External Account?
I'm writing a 2 Player Game. Rules:
Player 1 must place a bet (and send some ether to the contract).
Then, Player 2 must match the bet placed by Player 1, and send the same exact amount of ether to ...
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1
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1
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529
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eth_getLogs was only return erc20 tokens
i have used below command to get every logs on the special blocks but its only return erc20 token logs and ethereum transactions was not listed.
my geth command:
curl --data '{"method":"eth_getLogs",...
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0
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126
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if "address public x = tx.origin", why does "require (tx.origin == x") work and "require (tx.origin==tx.origin) not
Below is a contract that i have commented on, hoping to understand the logic of the arguments.
Below in bold is the question in question. The .sol currently works fine.
pragma solidity ^0.5.11;
...
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253
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Transaction posted in “internal transactions” how do I add it to my wallet?
I transferred ETH from bitbuy to my ledger without realizing ledger did not support contracts. The transaction is posted on ether scan in internal transactions. I’ve contacted bitbuy and ledger both ...
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1
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430
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How can I Retrieve Wrong Transfer of Erc20 tokens [duplicate]
I mistakenly Transfer an ERC20 token to a scammer Like(I created the Token) then I saw the Write function on etherscan.io. Is it possible to transfer it back to my wallet or not and if it is possible ...
7
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1
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4k
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Generating multiple deposite address for one account
I want to create something like a Crypto exchange, in which I need to generate different unique deposit addresses for each user, so they can send funds to their accounts while I can keep track of how ...
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1
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237
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how to be notified about incoming transactions instantly?
I'm creating a platform which users are able to receive ETH on their own wallets (addresses). They will give the addresses to others, but the question is how can I be notified that new transactions ...
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1
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Execute transaction Approve directly against contract address (without ABI)
Solved
For now, you will always need the ABI to execute a call against the ethereum network with web3. A simple way is to reconstruct the function you wish to execute is to, either create a separate ...
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1
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144
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Problem with understanding Buyer address
My account address on Remix IDE is 0xCA3…a733c and wallet address is 0x147…C160C. Following is my code obtained from Solidity Tutorial. In this code, buyer address is passed as an argument. I have got ...
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79
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tracing new address on new wallet in Ethereum [closed]
I am just wondering how the new addresses are anonymous in Ethereum. Suppose that I have a wallet A including many addresses on it. Then I have a new wallet, say wallet B, and opening new address on ...
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1
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80
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How can I implement redactable chain for ETH?
I am trying to research about Redactable blockchain so my question is how can I implement a Redactable chain in Eth if someone has some idea about it I will be thankful
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3
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1k
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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 ...
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1
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589
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Quorum transaction not mined and no address
I am running a private Quorum chain consisting of 3 nodes with raft consensus. When I deploy a contract to the chain via web3 I get returned a hash and can then look up the transaction with the local ...
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1
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241
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How does Transactions work in Ethereum Virtual Machine?
While reading the transactions sections of EVM documentation many questions raised in my head:
If the target account is not set (the transaction does not have a
recipient or the recipient is set ...
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1
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1
answer
301
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Byte32 error, even after converting string to hex
I looked everywhere for people with similar problems, but I couldn't find anything.
I am confused why I keep getting this error (yes, I know others have had this error too, but not for the same ...
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3
votes
1
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496
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Create Accounts Using Web3.js in Browser
TL;DR - Replicated Ethereum Blockchain. Running Local Node. Connecting Local Node to Web3.js in browser using RPC. Want to create addresses & send transactions
Details -
I have a blockchain that ...
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2
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2k
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How is it possible for 0x0000000000000000000000000000000000000000 to send out ERC-20 tokens?
Isn't 0x0000000000000000000000000000000000000000 a burn address where no one has private key? If that is the case, how can this address send tokens to other addresses? If you look at Etherscan's ERC-...
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