Le nozze di Figaro, K.492 / Act 3: Cosa mi narri?...Che soave zeffiretto

Recording identifiers

ISRC

DEF056830234

Release date of the album this recording appears on

2011-01-01

CopyrightID (CopyrightChains transaction hash)

0xdcb8fe48bab1621cbb42666b37c533cd64ef31519e84b7fae8372f7fd89b3f87

Copyright registration time

2026-06-20T22:32:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:0103590cb84ca3749f504346fc7a6d5f10f6e182a1b9eb592800df403da8339f

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF056830234

What this proof establishes

This recording was released in 2011, 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.