La Fanciulla del West / Act 1: Un poker? Nick, gettoni!

Recording identifiers

ISRC

DEF057730523

Release date of the album this recording appears on

1978-01-01

CopyrightID (CopyrightChains transaction hash)

0xd1f65dd013676d3848e630201f18ef36edf8d1735c754b73d0c5154c6ac016ba

Copyright registration time

2026-07-06T07:01:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T12:58:18Z

Bitcoin block

957039

Canonical record hash

sha256:1f817cff49a2ddb43968c30ce92945db9ef1711be54b1b5f453e9a463f9d0623

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF057730523

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.