Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III: Duettino: Canzonetta sull aria … Che soave zeffiretto

Recording identifiers

ISRC

DEFG21071104

Release date of the album this recording appears on

2010-08-24

CopyrightID (CopyrightChains transaction hash)

0xf36ff6b03ddca0e8d3a9af1f09834992db95420df09cbe70a42b8c2d4ad1620b

Copyright registration time

2026-07-31T23:03:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:30:38Z

Bitcoin block

960478

Canonical record hash

sha256:d150098849cee67c214bffe640f6e1e9635bf01873422d75950f80243efdd464

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEFG21071104

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.