Klinci is a village in the municipality of Valjevo, Serbia. According to the 2002 census, the village has a population of 269 people, and according to the census conducted in 2011 in Klinci was 233 in
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 0x2e5a0905ce71d6fa0d6d3df29ca6240eb9eb5fa499fde86e73289240c7647e99. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a78b602-3346-4041-93e5-f64c44f76c8c.json and https://artists.proofprofile.net/proofs/artist/0a78b602-3346-4041-93e5-f64c44f76c8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).