Tiit Terik (; born 15 June 1979) is an Estonian politician. He is the former deputy mayor of Tallinn. Deputy Mayor coordinates Tallinn City Property Department, Tallinn Municipal Police Department and
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 0xf7b6a631a354ca6c00bc0d27f52c3ea24cf2eecd0599e947ab8c595bfb6fd5f1. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/062d9493-cee3-49dd-9cee-56861f120aa2.json and https://artists.proofprofile.net/proofs/artist/062d9493-cee3-49dd-9cee-56861f120aa2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).