Piano Concerto No. 4, Op. 56

Recording by Nikolai Kapustin.

Recording identifiers

ISRC
DEB262100161
CopyrightID (CopyrightChains transaction hash)
0x8dbc34c67dce1a7db2653eb9dcf564b1c5f364b0796c100c42729e4df466583c
Copyright registration time
2026-06-21T05:25:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:9d5b317612160c469e7bb00ac06a631c87a302d8503f11cfcae3e8aee59b82ff

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.