12 Notations for Piano: VII. Hiératique

Recording by Pierre Boulez.

Recording identifiers

ISRC
DEF059331207
CopyrightID (CopyrightChains transaction hash)
0xd233b4dda95d1510615e991295ce6cdfcb8e8bc818d6fade2665376b0401fcae
Copyright registration time
2026-07-07T11:30:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:eff9568d3a31a341e835647907eb780a261bb93b2345f65af689f709c350aa6c

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.