Prelude in G minor, Op. 23, No. 5

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
HUA253289603
CopyrightID (CopyrightChains transaction hash)
0x64cd30a1593cc7b4c23e88d27707de8ecf9f1393c3ddc44c970e5208bd2314a2
Copyright registration time
2026-07-07T22:18:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:9b50d8a73fb62f4632977c2e38baac895ec548997850fd14790dbe976bf69899

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.