12 Etudes, Op. 10: No. 4 in C-Sharp Minor "Torrent"

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAJY0835304
CopyrightID (CopyrightChains transaction hash)
0x7148f1b8ec8150161d6c613df94c0d3f518f610f13a9afe0a22ec385d2e69d00
Copyright registration time
2026-06-19T04:40:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:a30e0b30813c4ff78b8af7bc3358cfb08c736dd0fa5c79df3f6720e31a1f352a

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.