1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a05e7bea46142ab71250cac0c0d42525dfb30bf9bbcd394acb40c49fc09b959. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8d2bf4d-e3f2-42e2-b506-691f7c1f24e1.json and https://artists.proofprofile.net/proofs/artist/d8d2bf4d-e3f2-42e2-b506-691f7c1f24e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Great Fairy's Fountain 80s Retrowave (Zelda: Ocarina of Time)
Secret of the Forest 80s Retrowave (Chrono Trigger)
Underground 80s Retrowave (Yoshi's Island)
Dire Dire Docks 80s Retrowave (Super Mario 64)
Longing for the Past 80s Retrowave (Illusion of Gaia)