July 2, 2026

Glossary

Protocol Fee

A fee charged by a DeFi protocol on transactions flowing through its smart contracts.

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Proof of Work (PoW)

A consensus mechanism requiring miners to expend computational energy to solve mathematical puzzles in order to earn block rewards.

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Proof of Stake (PoS)

A consensus mechanism where validators are chosen to create new blocks based on the amount of cryptocurrency they hold and lock.

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Proof of Reserves

A cryptographic audit conducted by cryptocurrency exchanges to prove they hold sufficient assets to cover customer deposits.

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Proof of History

A cryptographic technique used by Solana that creates a historical record proving events occurred at a specific moment in time.

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Proof of Burn

A consensus mechanism where participants destroy cryptocurrency to gain mining rights or protocol participation privileges.

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Private Key

A secret cryptographic key that proves ownership of a cryptocurrency wallet and is required to authorize transactions.

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