Dejection Blues

Recording by The Milt Jackson Quartet.

Recording identifiers

ISRC
USFI88400206
CopyrightID (CopyrightChains transaction hash)
0xc0ea6ccf358d3713135ea0230ad3d9c6decd382af5a40ae8ea857aba0fc527fc
Copyright registration time
2026-06-26T06:52:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T05:09:12Z
Bitcoin block
956312
Canonical record hash
sha256:94ca7447a44d9e89fd775b24557d7ac2ff083db2d7ed7a9abe1ce49028a0913d

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.