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Definition · Keys & custody

O que é Private key?

The secret number that authorises spending from an address. Whoever holds it controls the coins, unconditionally.

A private key is a 256-bit number. The corresponding public key and address are derived from it one-way, so publishing an address reveals nothing about the key.

There is no recovery mechanism. This is the whole point — nobody can seize or reverse what only you can authorise — and the whole risk.

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Esta definição faz parte do glossário da Bitcoin Logical. Para a explicação completa, comece por Aprender, ou veja os números ao vivo em O Sinal Bitcoin.