Kamari () is a coastal village on the southeastern part of the Aegean island of Santorini, Greece, in the Cyclades archipelago with a population of 1,065 according to the 2021 census. It is part of th
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 0x209555dc6a6be30e4f0094b9d4cff5330c0323d9fc59359e1a2f3a1da7ba9beb. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8ac1bf4-5eff-4c16-9c4e-c73748b7535d.json and https://artists.proofprofile.net/proofs/artist/f8ac1bf4-5eff-4c16-9c4e-c73748b7535d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).