Blues in G Flat

Recording by Warne Marsh.

Recording identifiers

ISRC
DKEFA9703001
CopyrightID (CopyrightChains transaction hash)
0x99db3b1efded4a39d83ad28261b1298cca8d873fbf707647d79e050e1e1265e2
Copyright registration time
2026-06-19T09:44:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:81ef6b307aa7e7c3afbbd105c3c188b55f213f3d2e723bae9779ce5310fd7168

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.