1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f2e3a2698b2acf35331e503d0bc915fdeccb8b35675435c9f29ddab08288fa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f2270a9-5b94-4113-b4e7-8cc68e3ddc9e.json and https://artists.proofprofile.net/proofs/artist/8f2270a9-5b94-4113-b4e7-8cc68e3ddc9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
マダム・ベル〜ダンス・カンパニー「イデビアン・クルー」に捧ぐ〜
つぎねぷと言ってみた（みんなのラッパ篇）
A Flower between the lines feat. Shiina Mota
駅弁ソング - アルバム英語バージョン
花 - flowordogmanagramix - Remixed by Naoto Sekijima
Hana - lofi hiphop retake - Remixed by lee (asano+ryuhei)
Hanagasumi,Chirinuruwo - AYANE SHINO Remix
Hana - flowordogmanagramix - Remixed by Naoto Sekijima
海峡2025 (唄編) / SENAKA2025 (Dedicated to rei harakami)
HIGH MUSIC -Hot-Cha Records Presents From The Legendary Mastertapes-
HIGH MUSIC -HOT-CHA PRESENTS FROM THE LEGENDARY MASTERTAPES