4 Visages for Viola and Piano, Op. 238: I. La Californienne

Recording identifiers

ISRC

NLY331602570

Release date of the album this recording appears on

2016-10-01

CopyrightID (CopyrightChains transaction hash)

0xf5532f9c1b9e3d4a86f8b2aa1ec18b7935472c51cb0d1714234f47bb4fab81dc

Copyright registration time

2026-07-31T14:28:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:e20c3439c403da0b4c904b537d3051dea9f5254449e122c63bee51b54e456ee2

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLY331602570

What this proof establishes

This recording was released in 2016, 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.