Math

Recording by Etienne de Crécy .

Recording identifiers

ISRC
FRU981700550
CopyrightID (CopyrightChains transaction hash)
0xf1c5d1fa0e26296e5f974f19ccd31f22a7874ccc86cbbb46819c46c667bd5094
Copyright registration time
2026-06-20T09:35:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:fbfecb3d6ddb1e99764ebf3550e266a3b0865e2512e66bccc4a05e9bce94265d

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.