Prelude in C-sharp minor, Op.3 No.2

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
GBLLH1230808
CopyrightID (CopyrightChains transaction hash)
0xbaefd11dd12072beb91957d1d3f392d3d159c5dd9b1f2117eb1ef5cbbdd1ce8e
Copyright registration time
2026-06-08T18:23:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:2a18561852584049fa2e2749e37beea43d64425f94826e7c520bb222db2f1f0e

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.