Things Ain't What They Used to Be

Recording by Duke Ellington.

Recording identifiers

ISRC
DKEFA2400410
CopyrightID (CopyrightChains transaction hash)
0x5dee4b6d17166a84cb296832c6f08c0fec2bfe7a4c512c83db5c0391a3f22ac5
Copyright registration time
2026-07-06T21:02:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:832029cf20b4746b72308e8fba99194867ec4da1d8bbea95ad893b8c19613af0

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.