Le nozze di Figaro, K.492 / Act 2: "Voi che sapete"

Recording identifiers

ISRC

DEN960130304

Release date of the album this recording appears on

2007-01-01

CopyrightID (CopyrightChains transaction hash)

0xf390eaa6bfee60976083cfd9dab358b96a504e0e70bad4588fc11abc96ed7f32

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T14:44:50Z

Bitcoin block

960266

Canonical record hash

sha256:2cd2300bee084fc9056e0c6c9d09ecb6229e149bf29b6b6c8a6e4d1ab95b381a

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEN960130304

What this proof establishes

This recording was released in 2007, 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.