パズル

Recording by KOTOKO.

Recording identifiers

ISRC
JPPI02302890
CopyrightID (CopyrightChains transaction hash)
0x12325eab327bd74d06ef7f5705fab5af063ec93dce5115274246da0ec28a3517
Copyright registration time
2026-06-20T09:27:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:18eeb4ebacd57e513d5dc1ffe3ae861aee8e21d67b6c491ebf5fbf7951151572

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.