I can help you understand the Ethereum txid and vout values in the context of multisig transactions.
Understanding txid:
The “txid” (short for transaction ID) is a unique identifier assigned to each transaction in the Ethereum blockchain. It is a single block of the chain that contains multiple input transactions.
When you create an input transaction using the multisig function, it includes two inputs: “txin0” and “txin1”. We are interested in finding the “txid” values of these inputs.
Finding the input txid:
To find the “txid” of the input transaction, you can do the following:
- Check the multisig wallet for any pending transactions or outputs that have not been spent (i.e. their “txout” values). You can do this by looking at the wallet balance and checking for any unused results.
- If there are no unused outputs, you will need to check the blockchain for blocks that have been mined since your wallet was last updated. The first block after a new transaction is confirmed on the Ethereum network usually contains the input transaction “txid”.
- Once you find the “txid”, you can look up the corresponding output value in the block’s “txout” array.
Finding vout values:
“Vout” (short for output) is how much you are actually spending on your transaction. To find the “vout” values, you will need to:
- Check the blockchain for blocks that have been mined since your wallet was last updated.
- Check the “txout” array for each block to see if it contains an output value with a corresponding “vout” value.
Example:
Let’s say you want to spend 10 Ethereum (ETH) for your input transaction using the txid 0x1234567890abcdef. You can do the following:
- Check your wallet for unused outputs:
- Check your balance and look for unused outputs.
- Check the blockchain for the first block after the new transaction (usually 10-15 blocks):
- Look at the “txout” array for the first block to see if it contains an output value with a corresponding “vout” value.
Assuming you checked your wallet balance and found no unused outputs, and then looked at the blockchain for the first block after the new transaction (block 10), you will see that:
- The “txid” of the input transaction is actually “0x1234567890abcdef.”
- In block 10, the values for vout are: “0x00000000000000001”, “0x0000000000000000002”, etc.
- This corresponds to two unused results that will be used for your spending operations.
Please note that the Ethereum blockchain is constantly updated, so it may take some time to find the correct values for txid and vout for a multi-sig input operation.