The Blues Ain't

Recording by Duke Ellington.

Recording identifiers

ISRC
DKEFA1700113
CopyrightID (CopyrightChains transaction hash)
0xed6f935e5dd03b56d596e045d52ddf9e091da596673e398557c6b8ba2d1b120b
Copyright registration time
2026-07-07T11:25:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:61b154d578f0373f3f074bee42dec5fc13d4c22271bcb0798e23c1a6bb303bc8

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.