Norma, Act I Scene 1: Casta diva (Norma/Coro)

Recording identifiers

ISRC

GBAYC9701116

Release date of the album this recording appears on

2016-10-19

CopyrightID (CopyrightChains transaction hash)

0x700720f301080a04c70a406dd0c5e22cdb1643655dd8aa45e493f465b515c6e7

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T02:51:48Z

Bitcoin block

960337

Canonical record hash

sha256:2dfb22423e5d61d37ac9fe9b0b5d52fa1870fcf0d2be06cb137e0c5efdf60e63

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC9701116

What this proof establishes

This recording was released in 2016, 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.