Piperspool

Recording by John Surman.

Recording identifiers

ISRC
DEB339041810
CopyrightID (CopyrightChains transaction hash)
0x090fc38961910c69401c18314e8a42d844bf35ce1164e0a4c147d6faeb065a4a
Copyright registration time
2026-07-29T17:09:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34Z
Bitcoin block
960138
Canonical record hash
sha256:73c6bf1e37778222f7ede16270a6f8b44e3def0f3a2e763b108b59c9f4e8d9ab

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.