The transaction merkle tree root value in a bitcoin block is calculated using Harsh of transaction.
What is the Merkle root in a block of transactions in Bitcoin?
A Merkle root is the hash of all the hashes of all the transactions that are part of a block in a blockchain network.
How is Merkle tree root calculated?
A merkle root is created by hashing together pairs of TXID s, which gives you a short yet unique fingerprint for all the transactions in a block. This merkle root is then used as a field in a block header, which means that every block header will have a short representation of every transaction inside the block.
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