Things Ain't What They Used To Be

Recording by John Coltrane.

Recording identifiers

ISRC
USFI85800402
CopyrightID (CopyrightChains transaction hash)
0x74fa698daa748f18e3e55753038163dfbf8fceffd8e76ddd54a1015b39e77ffe
Copyright registration time
2026-07-06T08:31:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:b50cc1702e9d5ef38b2cb8bd4d2af9c4f6fb004cea7b7e2234cb562ccf2137d7

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.