Black Swan

Recording by Duke Ellington.

Recording identifiers

ISRC
DKEFA1700117
CopyrightID (CopyrightChains transaction hash)
0x33b1508a68a9a14aae0f06628d53b37b7583308d537bd0ab72abe0403d808417
Copyright registration time
2026-07-07T14:56:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1e07c2278098d2999364648a0248a8e98691590531a921912f35670382e98dc0

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.