あの日の自分(入山杏奈、大島涼花、大和田南那、岡田奈々、柏木由紀、加藤玲奈、木崎ゆりあ、小嶋陽菜、小嶋真子、込山榛香、島崎遥香、高橋朱里、谷口めぐ、峯岸みなみ、宮崎美穂、向井地美音、武藤十夢、村山彩希、横山由依、渡辺麻友)

Recording identifiers

ISRC

JPKI01620952

CopyrightID (CopyrightChains transaction hash)

0x717ba5032cd71063bc9ee4491a95fd029f55c1d2d7ae3a165544eeece78a4dd9

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T06:42:11Z

Bitcoin block

960360

Canonical record hash

sha256:1e4e118af8647444e58447e7cc0bd6392c0e039b56dcdb6a95c207f249f63b2c

• 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.