Études-Tableaux, Op. 33: No. 7 in G Minor (Moderato)

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
FR7JM2256070
CopyrightID (CopyrightChains transaction hash)
0x4444a8518ec84f0632c0f5a3241cfcd087a0f02cda01a61d401aa902e9af7b73
Copyright registration time
2026-07-06T04:31:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:b28ed55b9c74c5ea8edf24e98c3f8ab5d0e1c65a86084c0e1dab7aee04628fb7

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.