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UTXO

An Unspent Transaction Output is a discrete unit of spendable value created by a transaction and consumed as an input to a later transaction.

Definition

An Unspent Transaction Output is a discrete unit of spendable value created by a transaction and consumed as an input to a later transaction.

Why it matters

Bitcoin-specific terms explain the architecture, monetary policy, and transaction model of the first major blockchain network.
Canonical knowledge ID: glossary:utxo