Ask/Knowledge Atlas/Confirmations
Transactions · Modern Bitcoin

Confirmations

A transaction gains confirmations as blocks are added after the block containing it, increasing the work an attacker would need to reorganize that history.

Context

Why it matters

A transaction gains confirmations as blocks are added after the block containing it, increasing the work an attacker would need to reorganize that history.

Canonical knowledge

What California Bitcoin maintains

  • A transaction gains confirmations as blocks are added after the block containing it, increasing the work an attacker would need to reorganize that history.

Primary and technical sources

Evidence before assertion
Bitcoin Developer Documentation

Bitcoin.org

Tier — · technicalBitcoin: A Peer-to-Peer Electronic Cash System

Satoshi Nakamoto

Tier 1 · primary

Related concepts

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MempoolTransaction feesUTXOInputs and outputs
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