Prélude in E Minor, No. 4, Op. 28

Recording by Frédéric Chopin.

Recording identifiers

ISRC
SE5IB1600180
CopyrightID (CopyrightChains transaction hash)
0x9ca5f883de1b1168a7a229af64cb2d69e176ec058a7e9330eb3092656d055587
Copyright registration time
2026-06-05T10:25:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9dd7fbdee06d3d7fbc675797024ed1139d8e0828051093a9a7354805af107199

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.