Undernote

Recording by John Surman.

Recording identifiers

ISRC
DEB338736605
CopyrightID (CopyrightChains transaction hash)
0xc0e2873d8d7b9ead9a12c06a53e339cbb8e9d9af857742f811ed5c7f330584de
Copyright registration time
2026-07-30T02:10:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T02:30:29Z
Bitcoin block
960199
Canonical record hash
sha256:f56ea4cbf2e5b0e1e15c7a243498a0b5394344b0c8a89496fa379aa3ed9b3996

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.