Mood Indigo

Recording by Duke Ellington & His Cotton Club Orchestra.

Recording identifiers

ISRC
USBB19900104
CopyrightID (CopyrightChains transaction hash)
0x445830b36662422b35e5f5bc8d053f879a234e9a9ee6fb7f83d34b25f85d0b78
Copyright registration time
2026-07-30T16:48:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T17:23:26Z
Bitcoin block
960284
Canonical record hash
sha256:6c83379ba42eafe18ad09a7d85b7108c2fe26b145ea2c629e24fa0daa11653fe

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.