wtxid
The witness transaction ID (wtxid) of a transaction is calculated by taking the double SHA-256 hash of a serialized transaction, including its SegWit marker, version, and witness.
The witness transaction ID (wtxid) of a transaction is calculated by taking the double SHA-256 hash of a serialized transaction, including its SegWit marker, version, and witness. When a normal txid is calculated, it excludes witness information, and thus if a transaction has no SegWit inputs, its wtxid is identical to its txid. Wtxids are used by miners to build a Merkle tree, which is included in a output of the coinbase transaction.
This removes any malleability of the witness of a transaction once the transaction is included in a block.
wtxid is a concept relevant to Bitcoin, finance, or blockchain technology that investors should understand. Onramp's comprehensive Bitcoin glossary provides clear explanations of wtxid and hundreds of other terms to support informed investment decisions.
Frequently Asked Questions
What is wtxid?
wtxid is a term used in Bitcoin, finance, or blockchain technology. Understanding wtxid helps investors and enthusiasts build a stronger foundation of knowledge about digital assets and financial markets.
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wtxid is relevant to understanding how Bitcoin, financial markets, or blockchain technology operates. Knowledge of such concepts helps investors make better-informed decisions about their portfolios.
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Onramp's Bitcoin glossary offers detailed, accessible explanations of wtxid and over 500 other terms related to Bitcoin, finance, and blockchain technology for investors at all experience levels.
