Mozart: Le nozze di Figaro, K. 492, Act 1: Duettino. "Cinque, dieci, venti" (Susanna, Figaro)

Recording identifiers

ISRC

GBAYC8600625

Release date of the album this recording appears on

1987-01-01

CopyrightID (CopyrightChains transaction hash)

0xe288b3d6f25cc3c6b2999685a54a62650e8cb3818a67e1a9e204a2f37e116321

Copyright registration time

2026-06-19T09:06:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:e80a730b10af408251cd078a14b9deb9a39ef65608ea488b093115d6ece06c5f

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC8600625

What this proof establishes

This recording was released in 1987, 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.