New answers tagged transactions
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I think i have a sweeper bot on my account
How come the coinbase transaction does not appear on etherscan?
Coinbase is sending you the ETH from a smart contract. Because of that, the ETH transfer appears under the "Internal Transactions&...
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Can you schedule an eth transfer in the future?
Signing a transaction, and broadcasting it to the network are 2 distinct steps, so it is possible for the broadcast to be done 1 week later.
But if A sends the signed transaction to B, A cannot ...
eth♦
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abi-decoder's decodeMethod returns undefined
The problem seems related to how abi-decoder computes the function identifier (the hash of the function signature); in particular, it associates swap function to the 0x899a73f4 ID and not to the ...
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How to retrieve the logs of transactions on one contract and multiple addresses
dev advocate at Chainstack here.
Here you can find a good explanation and examples of how to use eth_getLogs.
Those are the parameters accepted by eth_getLogs
object — the filter parameters:
fromBlock ...
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Accepted
How to keep track of each account's ETH balance when parsing all historical transactions
Dev Advocate at Chainstack here.
This task is relatively complex if you want to scrape and index the chain from scratch.
You can achieve this by tracing each transaction using trace_transaction
Let's ...
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How to keep track of each account's ETH balance when parsing all historical transactions
I use debug_traceBlockByNumber and specify callTracer as the tracer, so I get every internal call of the block. And track values of these calls
Also you can trace separate transactions same way
P.S. ...
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Same block Swap before an Approval is allowed?
Here's what happened:
The first transaction is swap from some ETH to the iGP token.
The second transaction is approval for subsequent iGP trading.
The swap does not need an approval because the ...
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TopsvilleNFT ,took 2000.00 and suspended my account for asking where was the 50eth they sent to paypal om 11/16/23
I'm sorry to hear about your experience. Unfortunately, fraudulent activities like this are prevalent in the crypto space, the money is hard to recover.
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Send selected token (the one you deployed) with web3js
To interact with a contract on a blockchain, you must have to communicate with a RPC or any other endpoint prefer. To that you may have to use a direct API call, a library like web3 or ethers from a ...
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'value at "/0" is required'
Find the problem and fixed it.
The part I fixed: Instead of rawTransaction after you write signedTx and put dot it shows you raw but I saw in an example of people doing it they wrote rawTransaction so ...
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Tracking the spedup transactions from metamask
There is one way of tracking this. Follow these steps.
Fetch the nonce of the last transaction submitted by the account. In this case, the nonce of increaseAllowance called.
Subscribe for pending ...
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Which contract should execute the approveAndTransferFrom function under one transaction?
As only the owner of the tokens can approve the spending of their tokens, yes it should be Contract A that call the approveAndTransferFrom function, with the spender being the TokenTransferContract ...
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Weak RNG vulnerability proving
The writeup for First Flight Puppy Raffle is here: https://www.codehawks.com/finding/cloogzlbq01miw9xtmfcfpded
The Attack contract aims to exploit the weak PRNG in the selectWinner function to ...
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