Chopin: Nocturne No. 10 in A-Flat Major, Op. 32 No. 2

Recording identifiers

ISRC

FRZ119506010

Release date of the album this recording appears on

2002-01-01

CopyrightID (CopyrightChains transaction hash)

0x192f72b6baa8a1fa34a301339203856a1183d526abc12e40b7cddf0810b50066

Copyright registration time

2026-07-31T10:10:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T10:20:10Z

Bitcoin block

960389

Canonical record hash

sha256:a15899e12e80ecd3aa14a6b234bef251a1050a4ba8f577137d9772f0cf11a504

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ119506010

What this proof establishes

This recording was released in 2002, 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.