Things Ain't What They Used to Be

Recording by Duke Ellington.

Recording identifiers

ISRC
GBKPL2092412
CopyrightID (CopyrightChains transaction hash)
0xa0d02ed4ecf5c214d868586ee8d6ff71bc1bf74d4b3cdd7ba8c82622609f8d8d
Copyright registration time
2026-07-07T00:34:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:d7097f05c41f011856bfd2ca83c385a18fc6bf629a4534d734fd8b2a3aafdd10

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.