The Devil Must Be Laughing

Recording by John Mayall.

Recording identifiers

ISRC
QMBPJ1700003
CopyrightID (CopyrightChains transaction hash)
0x64ed89ebfaa95b359166ce793b2ff2d7ca84fbc77941d651786a2e917abbaa00
Copyright registration time
2026-06-05T12:27:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:ce1df0b85c9092c1f75a65ae9f20c7db20ab422adf6a53c91751f282a9cc0608

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.