Yesterday

Recording by Paul McCartney.

Recording identifiers

ISRC
USA370523838
CopyrightID (CopyrightChains transaction hash)
0xb2181bf88e5d6393247ae52f0b322a2e488128a296d92e70908d66f955f78e02
Copyright registration time
2026-07-07T03:21:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:a61b9c0d70675b4ded036257621dc2664df4cca2c4f1186442c1a872ad037911

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.