Cyrus () is a Persian-language masculine given name. It is historically best known as the name of several Persian kings, most notably including Cyrus the Great, who founded the Achaemenid Empire in 55
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 0xd1405dd67e32ecc560711a4a514c44abb1807458980a008f12e7080251821c12. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1494f54e-636f-46a3-a88c-5ea9d9dc00c0.json and https://artists.proofprofile.net/proofs/artist/1494f54e-636f-46a3-a88c-5ea9d9dc00c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).