Verdi: Don Carlo, Act 2: "Perduto ben, mio sol tesor" (Don Carlo, Elisabetta)

Recording identifiers

ISRC

GBAYC0001349

Release date of the album this recording appears on

1971

CopyrightID (CopyrightChains transaction hash)

0xb7fbbdae4ed109889145b91639428d5c3497b8d5135cb5fc05bd7c2ef5e2abfd

Copyright registration time

2026-07-07T08:09:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:be1781e0494efb790f630437aa09258a81ae29a8b1966b6207f05bcfda01eb27

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC0001349

What this proof establishes

This recording was released in 1971, 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.