Le Nozze di Figaro: Atto secondo: No. 10 Cavatina (Contessa): Porgi amor qualche ristoro

Recording identifiers

ISRC

DEP620001403

Release date of the album this recording appears on

1999-12-30

CopyrightID (CopyrightChains transaction hash)

0x17128c2af17b1832ad86c34e90be43cd58b2e9c93a0371e6b70c1495361b2407

Copyright registration time

2026-07-07T07:46:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:420c44cf5b7e3160e398242f91f855d058be2961674526f8cc1e4efb9e4c4fb9

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEP620001403

What this proof establishes

This recording was released in 1999, 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.