Prélude in C-Sharp Minor, Op. 3 No. 2 (Lento)

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
GBX3U1106361
CopyrightID (CopyrightChains transaction hash)
0x7c08d859464be3e866f52797ff5f55d1e0c01b21d6535d6d8d9d43bda92b0382
Copyright registration time
2026-06-20T09:28:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:e38831c945bc84c6e164e2f3f1ff93ecfd77af1a644d9c891bcc86cd0e0fbd55

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.