Future Kings of Spain were an Irish rock band formed in Dublin 2000 by Joey Wilson, Anton Hegarty and Bryan McMahon. The three had played together with ex-Spudgun guitarist Dave Layde in Mediumwave be
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 0x661cf47a1a2d25684a0fb43b6fd3dcfd058f9229b6430c0b5082e8cf2e961001. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/295e69ad-dfa7-4f50-ac81-9b76d498de1b.json and https://artists.proofprofile.net/proofs/artist/295e69ad-dfa7-4f50-ac81-9b76d498de1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).