Nocturne in C Minor, Op. 48 No. 1 - Live

Recording by Frédéric Chopin.

Recording identifiers

ISRC
PLC701552425
CopyrightID (CopyrightChains transaction hash)
0xb4979edb57a1fde087bbbcdf9684f2a94980b054a293225457565c2373371aa9
Copyright registration time
2026-06-09T13:19:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:dfaf3321c20e9e082b2b6bb49d1ca68e2f68c1ee5c20dcce7f8beabb2d8ece61

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.