thumb|Kola nut – pod with half shell removed to reveal prismatic seeds inside their white testa, and fresh seeds (whole without testa on the left and, on the right, split into cotyledons) The kola nu
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 0x0e4be96e3fb7bed418ff6ab653982a76162a0238e598e50c729b0e23ee7e4d4c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fe8c095-1f01-4ec6-84ba-d3f15058fd3b.json and https://artists.proofprofile.net/proofs/artist/5fe8c095-1f01-4ec6-84ba-d3f15058fd3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).