Blue Tune - Take A

Recording by Duke Ellington.

Recording identifiers

ISRC
USSM11005000
CopyrightID (CopyrightChains transaction hash)
0x31467233589c4c397550b64fa664034011c8710c96f4b66f562ccce5fd1d4711
Copyright registration time
2026-06-23T16:52:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:e610562bf7fe3ddea8a22f28bd9b41125a4bf5ba5fdbdca978a8590757c74502

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.