21MERIDIAN 2140
24 / 104HASH

Cryptographic hash

A fixed-size fingerprint used throughout Bitcoin for identifiers, commitments and proof of work.

A fixed-size fingerprint used throughout Bitcoin for identifiers, commitments and proof of work.

A fixed-size fingerprint used throughout Bitcoin for identifiers, commitments and proof of work. This coordinate is placed in the wider system through its protocol, economic and historical relationships.

Understanding Cryptographic hash helps distinguish a verifiable Bitcoin mechanism or historical record from slogans, products and market narratives.

01

Linked to related atlas coordinates

02

Grounded in a source record

03

Explains function and trade-offs

04

Part of the open Bitcoin knowledge graph

DOC · 001FIPS 180-4 Secure Hash StandardSpecification
Reviewed 25 July 2026Source-first · No investment advice