Madama Butterfly, Act II: Oh eh! Oh eh! Oh eh! (Coro)

Recording identifiers

ISRC

GBAYC8600166

Release date of the album this recording appears on

1966

CopyrightID (CopyrightChains transaction hash)

0x9c3084ecec0ed782555768a737a4b8e3ea528749b29a12f37ad4629dfb1f0b7d

Copyright registration time

2026-06-24T10:02:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:49dabbe7ca71f0ecad37b78dd2cca37429e051b15867e26b0226a98fc6a7987c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC8600166

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.