Old Man Blues

Recording by Duke Ellington & His Harlem Footwarmers.

Recording identifiers

ISRC
USSM10021571
CopyrightID (CopyrightChains transaction hash)
0x3c2d04a18bb6d9490b189a05c5b45fbbc2e978cda8c8bc168ec8c4cc7282c6a7
Copyright registration time
2026-07-07T11:21:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a46c0884d02e13f5524082a41730ad05758cc68e6cb5f9d74446fe455d50762b

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.