Nocturne No. 4 in F Major, Op. 15 No. 1. Andante cantabile: III. Lento

Recording identifiers

ISRC

FRZ149220060

Release date of the album this recording appears on

2010-06-22

CopyrightID (CopyrightChains transaction hash)

0x6898b0ce9bb4c098ba5f12f2dc36bc278d0d32fd0e7b94906bb6f63ca762a33e

Copyright registration time

2026-07-06T07:16:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-13T07:53:33Z

Bitcoin block

957819

Canonical record hash

sha256:682d5048c79da872006682678703cfb3ce6da89821683943f2b66ae8d778bbe7

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ149220060

What this proof establishes

This recording was released in 2010, 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.