Variations for Piano & Big Band, Op. 3

Recording by Nikolai Kapustin.

Recording identifiers

ISRC
DEB262400500
CopyrightID (CopyrightChains transaction hash)
0x12acc3a13ba84cb1540ed26e8184e06184c66d54e4dcc08c64ee7f9274aade4c
Copyright registration time
2026-06-17T08:48:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-17T19:07:14Z
Bitcoin block
954130
Canonical record hash
sha256:f3e67a2d37f1602b27462f6376c4203ebe971d7f2b96ae62a962fa70cc3fc2d9

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.