La Fanciulla del West / Act 1: Mister Johnson, voi m'avete seccato!

Recording identifiers

ISRC

DEF057730530

Release date of the album this recording appears on

1978-01-01

CopyrightID (CopyrightChains transaction hash)

0xbd2edec703ecd5f06403d8a518b205c474a49648ba761c314f3ad1d7ce41d1c6

Copyright registration time

2026-07-29T18:51:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T21:13:37Z

Bitcoin block

960145

Canonical record hash

sha256:62f283726a584e7fba8f3ae0e8d91240b0a5b48817a3919883296e2d5f9e5cf1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF057730530

What this proof establishes

This recording was released in 1978, 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.