Curtice is a surname. Notable people with the surname include: Harlow Curtice (1893–1962), American auto industry executive Jack Curtice (1907–1982), American football coach and college athletics ad
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa076e6e76f54b8b94131ebd407874d09b06c12a5c62aba6a8b9db54fb862ea1a. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d4176c7-2a52-4dcb-a402-6d1b6cbb5e71.json and https://artists.proofprofile.net/proofs/artist/1d4176c7-2a52-4dcb-a402-6d1b6cbb5e71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).