Improvisation #2

Recording by Greg Sheehan.

Recording identifiers

ISRC
AUQQM2000006
CopyrightID (CopyrightChains transaction hash)
0x21a3c569e768e07cfeadfdb794f692ccc861206e86ebf2edd5861e291b8d18d9
Copyright registration time
2026-07-06T18:09:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T09:18:01Z
Bitcoin block
957020
Canonical record hash
sha256:5549e4e6057b9e622006540ea8e738ef9cb91e404940cd59364399bc587caa08

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.