Tosca, S. 69, Act I: Mario! Mario! Mario!

Recording by Giacomo Puccini.

Recording identifiers

ISRC
GBAYC9701395
CopyrightID (CopyrightChains transaction hash)
0xb65583a522d6c6b8a70e44fa9cf9f9330fa6a03283bd7dce0833a39de45bd23e
Copyright registration time
2026-07-06T03:13:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:6120502ea5f67ca75f63182f8e71f59fc900bd7db7a1adca9cb42c8d445b7bfe

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.