Madama Butterfly, SC 74, Act II: Un Bel di vedremo

Recording identifiers

ISRC

GBAYC1002072

Release date of the album this recording appears on

2019-04-12

CopyrightID (CopyrightChains transaction hash)

0x2c67ce7dbdcae32eb39202c7fbce3ec2ab9a7359c51a09517da561efde042be8

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T05:15:54Z

Bitcoin block

960209

Canonical record hash

sha256:adf611d5fd1a85297647e7931c26f985ac375e31c7efda9e6ff5cc5054e99af1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC1002072

What this proof establishes

This recording was released in 2019, 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.