Justin may refer to: People and fictional characters Justin (given name), including a list of people and fictional characters with the given name Justin (historian), Latin historian who lived under
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 0x12a04087a01a2a7e97aa42a876fe455f8ebf7f73afd32078f1aad67601c05bbd. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c4e30db-5cc3-4276-b68b-3fc02289ea9a.json and https://artists.proofprofile.net/proofs/artist/7c4e30db-5cc3-4276-b68b-3fc02289ea9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).