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

Recording by Pierre Boulez.

Recording identifiers

ISRC
NLE422436004
CopyrightID (CopyrightChains transaction hash)
0xf6cc88bc52023601660f6652944f1f34778248531a354f3f870f35235dc6ce04
Copyright registration time
2026-07-30T04:12:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T04:47:22Z
Bitcoin block
960207
Canonical record hash
sha256:b4620a67d55e7b93630ebaef48002841d23fdf4866bf423665fbad4235f84e47

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.