4 Motets pour un temps de pénitence, FP 97: III. Tenebræ factæ sunt

Recording identifiers

ISRC

FRU621736610

Release date of the album this recording appears on

2018-09-21

CopyrightID (CopyrightChains transaction hash)

0x0e564600a37f39247bef3eafcfbe336059da1d96fcae1669ad1a15c2097f9dd1

Copyright registration time

2026-07-31T13:25:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T13:50:38Z

Bitcoin block

960410

Canonical record hash

sha256:2de145ac6e0fc02d418ff82a7d6e0e337b89fdc4f9524fd3d67e60e1d4e36098

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRU621736610

What this proof establishes

This recording was released in 2018, 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.