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 0x49f4bfd54d5afc57abd69e4b729c10c7443ab35150fb6b2be6880ddacd31bede. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b6f21a9-8e8e-47da-acb0-72cd68cd866a.json and https://artists.proofprofile.net/proofs/artist/3b6f21a9-8e8e-47da-acb0-72cd68cd866a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Cherry Pie(小粋なチェリーパイ)/My Hamburger Boy(浮気なハンバーガーボーイ)
ジョイフルワンダーランド/きらりんっ!
Granade(INFINITY) feat. Ayaka Sasaki & Cypress Ueno
Twinkle Starlight - Yuma Mizonokuchi Remix