Nocturne No. 7 In C Sharp Minor, Op. 27 No. 1 - 2005 Recording

Recording identifiers

ISRC

DEN960531207

CopyrightID (CopyrightChains transaction hash)

0xef579eff608887b6b6ef504efb09c59845749d21319f155ea28a009b4cf7cfff

Copyright registration time

2026-06-04T10:35:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:5cb68dab9ccc28930b305c10407d405908fe7cce806cc1b4b9cdaa7f3012c310

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.