ピアノ協奏曲第3番 ニ短調 Op.30: I. Allegro ma non tanto

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
HKI199800204
CopyrightID (CopyrightChains transaction hash)
0x036f0c684f62f0e42f3476c78d429c009ec7984abd475570f3bae60635aebba1
Copyright registration time
2026-06-23T00:45:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:69bf701ce69a5cf5d3e35850838f1f42b66ddc4bf33d533bb609bf0b308a36ad

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.