No.1 GIRL

Recording by Haruka Tomatsu.

Recording identifiers

ISRC
JPX401500013
CopyrightID (CopyrightChains transaction hash)
0x21da53f0c794ae4bc4ddfe5bf7c38d5389d52c754a25569020dc29b1e33a3c82
Copyright registration time
2026-07-07T20:02:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:39:04Z
Bitcoin block
957122
Canonical record hash
sha256:210765f131ea2f73a2d35528573586c01973e124b1ade6f26b3d704bb35562ac

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.