Mozart: Le nozze di Figaro, K. 492, Act III: "Hai gia vinto la causa?" (Il Conte d'Almaviva)

Recording identifiers

ISRC

GBAYC2002704

Release date of the album this recording appears on

2021-09-24

CopyrightID (CopyrightChains transaction hash)

0x69703ecb81ecccb1b20f6522662a82fe821c7630968fc9baade256c6f1dc77f0

Copyright registration time

2026-07-29T12:25:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T12:41:21Z

Bitcoin block

960106

Canonical record hash

sha256:c8ed44a19a2483d7d1ab40064631dd8f596185790fafadee4aa0d01100240938

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC2002704

What this proof establishes

This recording was released in 2021, 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.