KaterinaBehind the Name - Katerina (Greek: Κατερίνα, Katerína; Russian, Bulgarian and Macedonian: Катерина, Katerina) is a feminine given name. It is a Greek variant of Ekaterini and a Russian and B
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 0xd44b7673ee00c776cc2fa361e213a8020520f01dc5148e4d7758e48ed16bf74a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99cef431-f5ac-4341-b99a-42ffe390a655.json and https://artists.proofprofile.net/proofs/artist/99cef431-f5ac-4341-b99a-42ffe390a655.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).