Puccini: Madama Butterfly, Act 2, Scene 2: Introduction. Andante sostenuto - Andante molto lento

Recording identifiers

ISRC

GBAYC0802931

Release date of the album this recording appears on

2009-02-27

CopyrightID (CopyrightChains transaction hash)

0x672ef0bd7aa101f25c47798360e42c1ee34d0a664fdbfe78c676787921125d29

Copyright registration time

2026-07-30T00:16:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T00:21:01Z

Bitcoin block

960177

Canonical record hash

sha256:a75ab7ccc99ec5ce6055a1292d2440a2410a2358349fd30e86293a5df1c877cb

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC0802931

What this proof establishes

This recording was released in 2009, 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.