California Campground

Recording by John Mayall.

Recording identifiers

ISRC
USUM70969155
CopyrightID (CopyrightChains transaction hash)
0x30cf27de988ade619fff0db37ed3ebe2c5378fa94c150584d5b42d1f713124be
Copyright registration time
2026-06-24T06:14:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T05:09:12Z
Bitcoin block
956312
Canonical record hash
sha256:3642ea3bb06e7e3c78f47e57f8507edcc7770d67eb8dfb2d5a0984171311f56a

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.