Il Barbiere di Siviglia, Act I Scene 1: La ran la le ra, la ran la la...Largo al factotum (Figaro)

Recording identifiers

ISRC

GBAYC9701681

Release date of the album this recording appears on

2018-07-02

CopyrightID (CopyrightChains transaction hash)

0x188a19be9185765e73897c39c5dc2d65b9bae380b4ac576f05a51497d073e7bf

Copyright registration time

2026-06-11T03:56:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T14:41:13Z

Bitcoin block

957050

Canonical record hash

sha256:437c7ce6df1e92821c03cc92505a72911a060548f83609dafd9e9a7dd9a93391

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC9701681

What this proof establishes

This recording was released in 2018, 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.