Le nozze di Figaro, K,.492 / Act 1: "Non so più cosa son, cosa faccio"

Recording identifiers

ISRC

GBF076211040

Release date of the album this recording appears on

2004-01-01

CopyrightID (CopyrightChains transaction hash)

0xeca4a1a4267af2bda61b3828e7ac4fcc35dc540081b236f5ee5d3312c5c25978

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T06:42:11Z

Bitcoin block

960360

Canonical record hash

sha256:2f1e709de3f55a5545c72a3a49facd2edbd16d1f5b4096b3dbfeb5a83bd71521

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF076211040

What this proof establishes

This recording was released in 2004, 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.