PLAY LAND

Recording by 井内 竜次.

Recording identifiers

ISRC
JPR502152512
CopyrightID (CopyrightChains transaction hash)
0x3a2a3b30a1563c490a66937e2f7f0b9d219469ee26436f8c33a9ccae8f4d31ec
Copyright registration time
2026-06-18T14:45:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:7d89236e49e7ccabcdcfab0f7fa46894f3f44423b535e9f8887d194316b7b348

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.