Arcade most often refers to: Arcade game, a coin-operated video, pinball, electro-mechanical, redemption, etc., game Arcade video game, a coin-operated video game Arcade cabinet, housing which hol
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 0x3a532962e2f68c7fae460fe9efa4826a3803653d56fbc891f559a46b05f66f03. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e63fd63-4d2a-4cbb-8d53-65449c5dc75d.json and https://artists.proofprofile.net/proofs/artist/9e63fd63-4d2a-4cbb-8d53-65449c5dc75d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).