Nocturne In F Major, Op. 121 No 2 (A Trois Mains)

Recording identifiers

ISRC

NLN580541307

Release date of the album this recording appears on

2006-12-20

CopyrightID (CopyrightChains transaction hash)

0x76d0f1071f6fa0ea55ed7b0c6453ed041892685b070d7d8b7d35c8f49186ff05

Copyright registration time

2026-07-31T16:51:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T17:29:52Z

Bitcoin block

960441

Canonical record hash

sha256:452bcf5f7691ddb1c865b8f15fbbdbceaf1bcf43411caad2b8ad7d0e2b31e7e1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLN580541307

What this proof establishes

This recording was released in 2006, 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.