Prelude in G major, Op. 32, No. 5

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
HUA253289605
CopyrightID (CopyrightChains transaction hash)
0x2fda2d1b8b4688bcb550ae96580b73fd0a09b0429607e878e4b009a56b3e1ee9
Copyright registration time
2026-06-18T10:26:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:cff1d2d7b512947b24c2aa609fd4e328f28b7559c023480eef067353d5c5237d

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.