Prélude in G sharp minor, Op. 32, No. 12

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
GBF078710320
CopyrightID (CopyrightChains transaction hash)
0xfe4a8607bc00a4faf49532f97909a3b239b8c88aee1668cb29220e7aedc97033
Copyright registration time
2026-07-31T16:32:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T17:29:52Z
Bitcoin block
960441
Canonical record hash
sha256:b6492ce0eab5d0e2b412f50715c5a9ca2d8782bc787f33cedd331c1b3974483d

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.