Il trovatore, Act II: "Il balen del suo sorriso...Qual suono! o ciel!"

Recording identifiers

ISRC

GBF077640516

Release date of the album this recording appears on

1977-01-01

CopyrightID (CopyrightChains transaction hash)

0x25bae8d952913aad7898d5e2ab50dcf3c6a313e7e08f0568392020da57ebbb54

Copyright registration time

2026-06-19T12:26:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:81b29a59d71ec1e0a6a774d3385740ea772b49475b3df6b833182d8984357c18

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF077640516

What this proof establishes

This recording was released in 1977, 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.