Le nozze di Figaro, K. 492: Atto Terzo: Sull'aria... Che soave zeffiretto (No. 21, Duettino: Susanna, La Contessa)

Recording identifiers

ISRC

USSM11303855

Release date of the album this recording appears on

2014-10-17

CopyrightID (CopyrightChains transaction hash)

0xac2b5de1c7868416edbf6f462bc5baebe8751acaef80a146b59073450a423520

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T00:26:26Z

Bitcoin block

960327

Canonical record hash

sha256:34d7f4cc10f415377a9881ec5fbffc29c6bc294201814d08c552c98e881dff73

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM11303855

What this proof establishes

This recording was released in 2014, 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.