12 Études, Op. 10: No. 1 in C Major "Waterfall"

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF057230000
CopyrightID (CopyrightChains transaction hash)
0x86fce8de112a581880b4d4a739cd59c3a529d2beaf1428f27a0da55cff2414f8
Copyright registration time
2026-06-22T04:37:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T15:12:44Z
Bitcoin block
957055
Canonical record hash
sha256:21878d2331aef61ffb04e286f3e6298b65db3ffe7f31a5900b46b8311059d352

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.