The Marriage of Figaro: Part IV, "Contessa, perdono" (Count, Countess, Ensemble)

Recording identifiers

ISRC

USY9R0801298

Release date of the album this recording appears on

2008-08-22

CopyrightID (CopyrightChains transaction hash)

0xf941c05513772a7786c103083bb9c96902a5c6daff345fbbcc9585fc6ba22202

Copyright registration time

2026-07-06T10:49:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T09:18:01Z

Bitcoin block

957020

Canonical record hash

sha256:1c2abf84aa329b76ccf3335015c659192ce7d84ff9b92de9505176caf5712b3e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USY9R0801298

What this proof establishes

This recording was released in 2008, 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.