Crescendo in Blue

Recording by Duke Ellington.

Recording identifiers

ISRC
USSM10502237
CopyrightID (CopyrightChains transaction hash)
0xd122bd694315a9740ee660163f5965b0d619424aa5c9ae32d1d46f86620e1efc
Copyright registration time
2026-06-20T22:47:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T16:07:00Z
Bitcoin block
957061
Canonical record hash
sha256:db6bc97178687f55d11ee15388ef4e82bea8bb9a496773c82976aeb2d3bec1ac

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.