3 a.m. op / 午前3時のオプ (Remastered 2006)

Recording identifiers

ISRC

JPPS09100811

CopyrightID (CopyrightChains transaction hash)

0x203e067447b63f45a92ba91c93acd613b82060f0da6460a6f3b3efa0f99d0e7c

Copyright registration time

2026-06-19T10:04:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:887f36859dc8733dd5207c1f4191cb1b640ec1766c7611385a512a3b047920fc

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.