Yo Yo Man

Recording by John Mayall.

Recording identifiers

ISRC
GBCBR0400964
CopyrightID (CopyrightChains transaction hash)
0x42f52bcb7436ddbadd91fbfe644f837f0a7050f34a6254ab0733253ea855eed0
Copyright registration time
2026-06-26T18:11:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:4f338928347baccb5d99f23e0ef8b395bf6320e013b4dc11d993529451591c72

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.