Looking Back

Recording by John Mayall & The Bluesbreakers.

Recording identifiers

ISRC
GBF076521660
CopyrightID (CopyrightChains transaction hash)
0xb3004b507159232c46eea33e5f8ece90f3536c37f9303d5452f79eb8f0263668
Copyright registration time
2026-06-21T04:17:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:04dd2e13306229baac0b1a195ca0877a117fccd1fa4453fa8f92fa2fa016e102

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.