thumb|Emperor Naruhito and Empress Masako of Japan. The Emperor and Empress of Japan are the only current monarchs in the world left carrying this title. thumb|Augustus, the first emperor of the Roma
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 0x261bd3c601a45b65ca92062ec86fdf69857c5dbb856d5c5a73287a1cbad3e6ee. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7ae472a-3348-4789-a724-92e1cd809604.json and https://artists.proofprofile.net/proofs/artist/e7ae472a-3348-4789-a724-92e1cd809604.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).