Les Contes d'Hoffmann / Act 2: "Les oiseaux dans la charmille"

Recording identifiers

ISRC

DEF057239119

Release date of the album this recording appears on

1972-01-01

CopyrightID (CopyrightChains transaction hash)

0x01aa8af413fc94915d5b00f81a4150212ef24fba6704e658d6ac80e4c64f69b5

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T00:10:46Z

Bitcoin block

960485

Canonical record hash

sha256:287080fadfca93f98871b4650649ffcbc442365b68dc50dfd04320635349c9b5

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF057239119

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.