Les Contes d'Hoffmann, Act II: Là! dors en paix (Spalanzani/Hoffmann/Cochenille)

Recording identifiers

ISRC

GBAYC0300108

Release date of the album this recording appears on

2002

CopyrightID (CopyrightChains transaction hash)

0x3765f88f3bc0d80cbc33aa7c2f6f0012f74f0537455c44a036d9f119f5481cd6

Copyright registration time

2026-07-29T23:14:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T23:23:05Z

Bitcoin block

960164

Canonical record hash

sha256:d7f32db19f48f86b161d227b8f6e6351fc3b792e09f0e18fec5e98ff1a9110f1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC0300108

What this proof establishes

This recording was released in 2002, 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.