Puccini: Tosca, Act 2 Scene 4: "Ed or fra noi parliam da buoni amici … Sciarrone, che dice il Cavalier?" (Scarpia, Tosca, Sciarrone, Voce di Cavaradossi)

Recording identifiers

ISRC

GBAYC9701407

Release date of the album this recording appears on

1965

CopyrightID (CopyrightChains transaction hash)

0xdccbd115bcc0a1125975044357d2f3bf51d46fcf6377f284f767010ea2d661fc

Copyright registration time

2026-07-30T05:59:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T06:39:12Z

Bitcoin block

960216

Canonical record hash

sha256:25afcaf2e0ccd92b34247b0d4dc45305188743598431731c37c66296a6560a5f

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC9701407

What this proof establishes

This recording was released in 1965, 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.