13 Preludes, Op. 32: No. 4 in E Minor: Allegro con brio

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
DEF058831204
Release date of the album this recording appears on
1989-01-01
CopyrightID (CopyrightChains transaction hash)
0x712c67201346c56df0df5d5d0fdc7743b3916a7f49ba4da03c8f42347ad69d32
Copyright registration time
2026-07-07T07:19:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0ff5d1c177b37d9b82e879acba57efacfa72316a2ca68e1b9f227607b75f0bde

What this proof establishes

This recording was released in 1989, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.