The Marriage of Figaro, K. 492: "Overture"

Recording identifiers

ISRC

ITD542300130

Release date of the album this recording appears on

2023-10-13

CopyrightID (CopyrightChains transaction hash)

0xa3dd5d92dd2d5ae0410121367aa063e662472fc5678b573c6b8b39574fac27db

Copyright registration time

2026-07-06T07:19:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T18:39:05Z

Bitcoin block

957073

Canonical record hash

sha256:f11b076f3815921554ec0597c28c6c978abe93e9c48d028740168e5e5c46651e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC ITD542300130

What this proof establishes

This recording was released in 2023. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.