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 0x0dbab4fa7bdb321edad23c904a989a9835e268f733d576e8ccf28ede5baf00d3. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/404d8528-6dae-42f5-816f-28e0c9641127.json and https://artists.proofprofile.net/proofs/artist/404d8528-6dae-42f5-816f-28e0c9641127.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
daitaideE (feat. hI-sO, hoikourou & Sanga Skye)
だいたいでいい (feat. hI-sO, 回鍋肉 a.k.a チャクラヒラク & Sanga Skye)
west tokyo feelin' (feat. Loland higashi, B.T REO 440, amatsu, Raika, MIC & A)
西東京Feelin' (feat. ローランド東, B.T REO 440, 阿松, Raika, MIC & A)
西武ライナスタイラズ3 (feat. ローランド東)