Le nozze di Figaro, K. 492, Act II: Porgi amor

Recording identifiers

ISRC

GBF078111990

Release date of the album this recording appears on

1992-01-01

CopyrightID (CopyrightChains transaction hash)

0x484b2e2265a9c22430a472ff3702541a1d6c68f28e74230dda403b7cbd403291

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T14:36:16Z

Bitcoin block

960264

Canonical record hash

sha256:d8255f2b4a3988eab154ae929fc544929274406e3cb8113b7494497700aeacf6

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF078111990

What this proof establishes

This recording was released in 1992, 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.