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

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEA809200801
CopyrightID (CopyrightChains transaction hash)
0x5ce25c89aa7efe21634a51d9f86014d1b46061ac00610bfdcecae9dbcb0be11b
Copyright registration time
2026-06-07T13:02:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1217e80d2cfa09a118b54c53c09976419c726a6435634e909946c6f8b8eddabd

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.