お気楽真理 (feat. 鏡音リン&鏡音レン)

Recording identifiers

ISRC

JP92Q2200434

CopyrightID (CopyrightChains transaction hash)

0xa4d01d517ddb04b30e99e476e6a1a868618e8b27b52d1c7c799635020e922e9b

Copyright registration time

2026-07-06T07:31:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-13T07:53:33Z

Bitcoin block

957819

Canonical record hash

sha256:71418d43d6b631c970075062b3e4c9c12807523ff20e5b99699ad487ed36d7e8

• 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.