thumb|Jai Singh I of Amber receiving Shivaji a day before concluding the Treaty of Purandar (12 June 1665), Shivaji was later conferred with the title of Raja by emperor Aurangzeb. Raja (; from IAST
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 0x5513e40c98577fea86f429ea707bf2e89a0e97563af5de1dd3862c702f4eb37e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dad870a4-1bd2-4f4b-9395-1dc4efa803f5.json and https://artists.proofprofile.net/proofs/artist/dad870a4-1bd2-4f4b-9395-1dc4efa803f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).