Protocol & Consensus • Estimated 35m

Proof of Payment

protocol.proof-of-payment

Proof of Payment is a wallet-generated transaction-shaped proof that demonstrates control of the credentials needed to spend the inputs of a prior payment, without exposing a password or personal identity.

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Curated resources (3)

• BIP 120: Proof of Payment (article) Specification for generating and validating a one-time proof tied to a previous payment.
• BIP 121: Proof of Payment URI Scheme (article) Historical companion for transporting proof-of-payment requests.
• Mastering Bitcoin (book) Background on transaction authorization, signatures, and wallet-controlled credentials.

Direct prerequisites (1)

• Transaction Lifecycle

Direct dependents (0)

• None

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