Sonny Boy Blow

Recording by John Mayall.

Recording identifiers

ISRC
GBF076721340
CopyrightID (CopyrightChains transaction hash)
0x42991f58d8a89680a6079d6cf51d1e3817d73d9253fdc0b599ee63f5286db64f
Copyright registration time
2026-06-19T11:06:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:b119750a93d77b29c754351d86496551b1bbe173d6d8491bb4adb7dbbe74c03b

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.