BitcoinIntermediate

Transaction ID

An identifier computed from a transaction's protocol-defined serialized data.

PLAIN-ENGLISH DEFINITION

In more detail

A TXID gives wallets and explorers a way to refer to a particular transaction. Bitcoin's TXID excludes SegWit witness data, while its witness transaction ID commits differently. Finding an identifier is separate from finding a confirmed payment: the transaction could still be pending or absent from the accepted chain.

IN THE WILD

How you might use it

"I have the TXID now; I'm checking whether the payment is actually confirmed."

WORD NOTES

Short name: TxID

Was this clear?

Got a way to make Transaction ID click?

Add your take

By Crypto Dictionary · Published Oct 9, 2026 · Updated Oct 10, 2026

Go to the source

Use the original reference to explore the details behind this entry.

Read the reference

An original explanation with a reference to follow. Protocol details and community usage can evolve. Sources & standards