Puccini: Tosca, Act 1: "È buona la mia Tosca" (Cavaradossi, Angelotti, Sagrestano, Coro)

Recording identifiers

ISRC

GBAYC8000148

Release date of the album this recording appears on

1981

CopyrightID (CopyrightChains transaction hash)

0xdb57077233f03869e95b66723b7d2b488960be6d960d230223e87f8e73f003d8

Copyright registration time

2026-07-07T13:03:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:96535e115d64ab612952fcd34c7cb6ef0adba4b4ab3198b5399b447f1b704023

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC8000148

What this proof establishes

This recording was released in 1981, 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.