Nocturnes, Op. 9: No. 2, Andante in E-Flat Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
SEWDL6142671
CopyrightID (CopyrightChains transaction hash)
0xf5e633eacfe92216ecf8325bc63f01e859e41ac6dda5eb59f66b0cbd13e15701
Copyright registration time
2026-06-08T04:06:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f6cefadb700cd5d057d7ec6095c78a83dcf436cf65aed596f7ada423dc68aa3a

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.