7時12分の初恋 オリジナル・カラオケ

Recording identifiers

ISRC

JPN101200260

CopyrightID (CopyrightChains transaction hash)

0xb175e722f45157a77e22af9d830c103b1b8731bfd43ad3f315fca213d9221a45

Copyright registration time

2026-07-07T20:27:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:53:27Z

Bitcoin block

957124

Canonical record hash

sha256:2071a30e5641ca462cb6d23af032a4312a1dbe29e5e5fcf5a44e369ba4390ead

• 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.