Ask/Knowledge Atlas/Proof of work
Mining · Modern Bitcoin

Proof of work

Proof of work requires miners to expend computation and energy to propose blocks, giving nodes an objective way to compare competing valid histories by accumulated work.

Context

Why it matters

Proof of work requires miners to expend computation and energy to propose blocks, giving nodes an objective way to compare competing valid histories by accumulated work.

Canonical knowledge

What California Bitcoin maintains

  • Proof of work requires miners to expend computation and energy to propose blocks, giving nodes an objective way to compare competing valid histories by accumulated work.

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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Bitcoin miningMining difficultyHashrateHashcash
Machine accessAgent-ready
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