Bleu blanc blues

Recording by Claude Nougaro.

Recording identifiers

ISRC
FRZ018500580
CopyrightID (CopyrightChains transaction hash)
0x78320e3c6702f2d37fd6c2f5d25d3df36413a0f2ddec4f6357680ea5fc87b9f1
Copyright registration time
2026-07-07T11:24:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:1dd611e2a86a894e8df2f890dbe623d0444925bbc43ba052c454c5e32450fe51

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.