No. 2 in C-Sharp Minor. Prélude

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
HKI191904901
CopyrightID (CopyrightChains transaction hash)
0x0ea118a76476c7d01f8b989b3734d78fc3ae98850267bbaf4b89752e90e52f0e
Copyright registration time
2026-06-23T10:38:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:87f11653d1ff9430a9adf524178deaabe2494a3909c8851eb53c3466d04efca4

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.