Répons: Section 4

Recording by Pierre Boulez.

Recording identifiers

ISRC
DEF059632605
Release date of the album this recording appears on
1998-01-01
CopyrightID (CopyrightChains transaction hash)
0x6152804a6e78c55ef7fabc18d12880b843f88d45c9586f506fdf9b82a7fc95d4
Copyright registration time
2026-07-30T00:57:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T01:10:20Z
Bitcoin block
960183
Canonical record hash
sha256:09c98eda5e8ecae91df272b23ef2c19e8ea0007a5d15889df395c1d98eef7682

What this proof establishes

This recording was released in 1998, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.