> ## Documentation Index
> Fetch the complete documentation index at: https://docs.theblockchainlibrary.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 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.

# 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.

## Related knowledge

* [Bitcoin](/categories/bitcoin) — term
* [Mining](/generated/v2/glossary/mining) — term
* [Proof of Work](/generated/v2/glossary/proof-of-work) — term

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**Canonical knowledge ID:** `glossary:utxo`