Transaction Id in Bitcoin Blockchain

0 votes

Hi, I am pretty new to the concepts of Blockchain and its development. I want to ask if I have to fill in the transactionId value before sending the coin? And why?

In the below code, where is this value e44587cf08b4f03b0e8b4ae7562217796ec47b8c91666681d71329b764add2e3 found from?

ar bitcoinPrivateKey = new BitcoinSecret("cSZjE4aJNPpBtU6xvJ6J4iBzDgTmzTjbq8w2kqnYvAprBCyTsG4x");
var network = bitcoinPrivateKey.Network;

var address = bitcoinPrivateKey.GetAddress();

Console.WriteLine(bitcoinPrivateKey); // cSZjE4aJNPpBtU6xvJ6J4iBzDgTmzTjbq8w2kqnYvAprBCyTsG4x
Console.WriteLine(address); // mzK6Jy5mer3ABBxfHdcxXEChsn3mkv8qJv

var client = new QBitNinjaClient(network);
var transactionId = uint256.Parse("e44587cf08b4f03b0e8b4ae7562217796ec47b8c91666681d71329b764add2e3");
var transactionResponse = client.GetTransaction(transactionId).Result;

Console.WriteLine(transactionResponse.TransactionId); // e44587cf08b4f03b0e8b4ae7562217796ec47b8c91666681d71329b764add2e3
Jul 13, 2018 in Blockchain by sabby
• 4,370 points

1 answer to this question.

0 votes

The TransactionId comes from sending the coin. So sending the coin from one address to another will generate a transactionId. Might get more help on

Looking on a testnet block explorer you can see this transaction: sent coins from muxdaneQGxjcvdX5TMpw3vtAYbb7rmjhZz to mzERr7ZPXC1vThsJ74odTn1fuGvASGpQjz and mzK6Jy5mer3ABBxfHdcxXEChsn3mkv8qJv 

answered Jul 13, 2018 by Christine
• 15,830 points

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edited Mar 26, 2018 by Christine 745 views