Études-tableaux, Op. 39: No. 1, Allegro agitato

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
HKI191537601
CopyrightID (CopyrightChains transaction hash)
0xff2735e10a5c178b86c22a715e1df387fef44680607fceefab3ab059a51a62cc
Copyright registration time
2026-06-23T10:38:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:a44da066f68b7f3d63559211a85e9d8ae04dcff139baf1a3f1849f70117e5abe

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.