Two Inventions

Recording by Evgeny Kissin.

Recording identifiers

ISRC
UK2Y21300680
CopyrightID (CopyrightChains transaction hash)
0x28cd7bca67f40e2316675d03292aaf05ab15f12e0741480c9d20d00a21307d48
Copyright registration time
2026-07-07T06:40:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:cc4f5bd377d35d9e478ed9bf3ca69de35b6bb48505118eb8808f2682d72dcf5b

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.