Tosca, Act I: "Ah, quegli occhi!" - "Qual occhio al mondo"

Recording identifiers

ISRC

USSM12405192

Release date of the album this recording appears on

2024-09-13

CopyrightID (CopyrightChains transaction hash)

0x81f13a429f8a10b977a3ed17a07b0116ac21a056a96687bb53c4f2de6685d733

Copyright registration time

2026-06-24T09:59:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:3b0c2d9cfe03f5610e2e1bd540e90c35130f383416613c8beed82dde6a9f0a89

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM12405192

What this proof establishes

This recording was released in 2024. 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.