Le nozze di Figaro, K. 492, Act III: Duettino: Canzonetta sull aria… Che soave zeffiretto

Recording identifiers

ISRC

HKI190348218

Release date of the album this recording appears on

2010-12-14

CopyrightID (CopyrightChains transaction hash)

0x29e42d45aa3a49d8a1a4144138b4d0ef852a8e0b8fd995f45dd8d39675e4e8d3

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T13:04:34Z

Bitcoin block

960403

Canonical record hash

sha256:91d0e7226fc9b1be6a2b14a67589691f433635112650b04ceccbd5ff5834702d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI190348218

What this proof establishes

This recording was released in 2010, 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.