Etudes-tableaux, Op. 39: No. 5 in E-Flat Minor (Appassionato)

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
FR7JM2256130
CopyrightID (CopyrightChains transaction hash)
0x22a7c45d82d4bfae1a3eac890197e77ab34b8ed34cede1721a2bf7a67c9ceb28
Copyright registration time
2026-07-06T20:17:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e024136c2b232d1a2ee2f83e3f8f38004c148ddd1b1a92db6e9fb04eea8ac41d

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.