Études-tableaux, Op. 39: No. 5, Appassionato

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
HKI191537605
CopyrightID (CopyrightChains transaction hash)
0x7de913aa8d9e8a89053555b1dd0d178228c2e979851a6ea993c0efcb38c9ba18
Copyright registration time
2026-06-05T17:33:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:cac6f394610fe6f0e7312a5ad7db4f1ef7012872bc5b72b1ca4bb2545e5832d8

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.