Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
Recording by Frédéric Chopin.
Recording identifiers
- ISRC
- SEWDL9750006
- CopyrightID (CopyrightChains transaction hash)
- 0x5c38d5fa357f15b52b9ef5added3acb1892998329184799cf63a15d6a6806d95
- Copyright registration time
- 2026-06-04T14:08:45+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08Z
- Bitcoin block
- 956304
- Canonical record hash
- sha256:b57d5cd58e7fd3cfbe4f28ea030c3c51df4abb8de955a2b6febcaa2f7a22ccec
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.