Nocturnes, Op. 48: No. 2 in F-Sharp Minor

Recording by Frédéric Chopin.

Recording identifiers

ISRC
USZDG0600973
CopyrightID (CopyrightChains transaction hash)
0x10ba4e20f7357485c93eee8f18cf98a5dc8e449ba0edc48824adad9fa6e659d0
Copyright registration time
2026-06-21T10:50:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:31fd610c534ca7908c5e42d0f3e5cff0e059710d59ab30c7f72f85781eaa1dde

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.