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 0xfc04c2e2366caa2780b5a7a5da4e79be597905e8c37c379b69322dea9a59e978. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd54e425-a0de-40c6-9d31-7ecd4ed2c41d.json and https://artists.proofprofile.net/proofs/artist/bd54e425-a0de-40c6-9d31-7ecd4ed2c41d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).