Livre pour quatuor (2017 version, ed. Philippe Manoury): Ib.

Recording by Pierre Boulez.

Recording identifiers

ISRC
NLE422436002
CopyrightID (CopyrightChains transaction hash)
0xf63d806d95c250c58c857a494602f0350b3be216b49466195967df6d5b56811f
Copyright registration time
2026-06-28T05:09:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T16:51:38Z
Bitcoin block
956375
Canonical record hash
sha256:35ef68a84035a632d493bcd0b010649d18cb253b06783f1a977bb091c8d66cc9

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.