Nocturne No. 3 en la bémol majeur Op. 33 No. 3

Recording identifiers

ISRC

CAJ721446604

Release date of the album this recording appears on

2014-03-01

CopyrightID (CopyrightChains transaction hash)

0xa8568fe2304f139f77464c22f4faa7d3a3f10a743c038c586074c4850505b516

Copyright registration time

2026-07-30T07:41:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T07:48:45Z

Bitcoin block

960222

Canonical record hash

sha256:08d233fca9815517c22315ea5eaa9e841c29197ee1fbf4a2cfad3b686651c686

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CAJ721446604

What this proof establishes

This recording was released in 2014, 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.