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Blockchain fundamentals

UTXO selection

A Bitcoin transaction consumes prior outputs and creates new ones.

Reference note · Sources below

Research articles and reference entries are published in English. Navigation is available in seven languages.

In this article
  1. Overview
  2. Why it matters
  3. What to check
  4. Sources

Overview

A Bitcoin transaction consumes prior outputs and creates new ones.

Why it matters

Coin selection changes fees, privacy and change outputs.

What to check

Trace complete inputs and outputs instead of account-style assumptions.

Sources

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