Les Contes d'Hoffmann / Act 3: Jour et nuit je me mets en quatre

Recording identifiers

ISRC

GBF077140513

Release date of the album this recording appears on

1972-01-01

CopyrightID (CopyrightChains transaction hash)

0xa36210ca02a76eae87f0b280cff64001d61617eea85b1c4d86d54d3e8ff4c9f2

Copyright registration time

2026-07-30T04:46:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T05:15:54Z

Bitcoin block

960209

Canonical record hash

sha256:5ec927c365b417c3b9c3d46275aa046c96049b8b15874bf3d9766641713a750b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF077140513

What this proof establishes

This recording was released in 1972, 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.