Le Nozze di Figaro: Atto primo: Recitativo: Cosa stai misurando

Recording identifiers

ISRC

DEP620001385

Release date of the album this recording appears on

1999-12-30

CopyrightID (CopyrightChains transaction hash)

0x4a6238b982d7c21099e1c6d81a1ba3875a0db6836ed928802721d75f00d22505

Copyright registration time

2026-07-30T04:08:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T04:47:22Z

Bitcoin block

960207

Canonical record hash

sha256:8576bb8e4075b28092982e6d0203722bd43b751f59c7069854a33d637d77f6e2

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEP620001385

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.