Largo al factotum from The Barber of Seville - Vocal

Recording identifiers

ISRC

USSM19925179

Release date of the album this recording appears on

1994-12-06

CopyrightID (CopyrightChains transaction hash)

0x2076888f53ae978203e8b35e1bea1a4c5a2be5cc3a04198c8d816e2cc28abc57

Copyright registration time

2026-06-18T13:55:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:a12bea44b419fe258c0d8753ed4a138dd53e261bb9617e652d98bd437782bc4b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM19925179

What this proof establishes

This recording was released in 1994, 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.