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

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN962100570
CopyrightID (CopyrightChains transaction hash)
0x156bef593e773900a6923334083c3dd47695739669455d68d57405823f799dbf
Copyright registration time
2026-06-05T15:57:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:96fc2de078bf33d0e5016e86f5ab0ba0574140af74a76fb06617c7fcf71d5112

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.