Sighash

Flags that specify which parts of a transaction are covered by a signature.

Type:

bitcoin

scripting

definition

Sighash types (e.g., ALL, NONE, SINGLE, and ANYONECANPAY variants) control what a signature commits to, enabling multi-party construction and advanced contracts. Different chains may extend or modify sighash semantics.

Example 1.1

"Using SIGHASH_SINGLE|ANYONECANPAY, each participant signs only their own input and one output, making it easier to coordinate complex transactions."

Related Terms

Signature

→

A cryptographic proof that a message was authorized by the holder of a private key.

cryptography

Transaction

→

The fundamental unit of data exchange on a blockchain, representing transfers of cryptocurrency or executions of smart contracts.

blockchain

technical

All terms and definitions may update as the Cryptionary improves.

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