Madama Butterfly, Act II: “Un bel dì vedremo”

Recording identifiers

ISRC

AUAB00150028

Release date of the album this recording appears on

2001-01-01

CopyrightID (CopyrightChains transaction hash)

0xf67bbfffc42ec690692e6121a80aa4b7d36e01181701d9eb15ba0255297cd949

Copyright registration time

2026-07-06T23:16:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:44bbc6db0b23afdf5a2783d2156af110315fffb351ac46dabaa37cb4568ffe74

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC AUAB00150028

What this proof establishes

This recording was released in 2001, 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.