Calvin Ross (born January 9, 1949) is an American former law enforcement officer who served as Chief of Police of the City of Miami from 1991 to 1994, then served as Secretary of Juvenile Justice of F
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 0xb558985ffe82fcd548a57504046f52b7e9ef7f0303cfc647c51df03571f122ae. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9a60a4b-8693-414e-bf8d-787891ec1c1a.json and https://artists.proofprofile.net/proofs/artist/a9a60a4b-8693-414e-bf8d-787891ec1c1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).