Madama Butterfly, Act II: Che vuol da me? (Butterfly, Suzuki, Sharpless, Kate)

Recording identifiers

ISRC

GBAYC8600172

Release date of the album this recording appears on

1966

CopyrightID (CopyrightChains transaction hash)

0x9c1921f0400172b5d37ff04d4d80b1c0becb5707421c02bd716df944c44d4011

Copyright registration time

2026-06-24T10:02:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:9dd9b4534d016c57f6a2b3b1578fd4a1cec244f193e2edd37349c4e1a8068f81

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC8600172

What this proof establishes

This recording was released in 1966, 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.