Chopin: Nocturne No. 5 in F-Sharp Major, Op. 15 No. 2

Recording identifiers

ISRC

GBAYC9703897

Release date of the album this recording appears on

2001-02-01

CopyrightID (CopyrightChains transaction hash)

0x8bef40df3d312302463122890d700e9d5cc67f2840612718edaeba9b369e7c5c

Copyright registration time

2026-07-06T09:04:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T18:39:05Z

Bitcoin block

957073

Canonical record hash

sha256:cd2be159eca38596c98b7d465d9e3069562bcd47957c8ca6b43b66c498ec5ac5

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC9703897

What this proof establishes

This recording was released in 2001, 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.