right|thumb|250px|Critic by Lajos Tihanyi. Oil on canvas, . A critic is a person who communicates an assessment and an opinion of various forms of creative works such as art, literature, engineering,
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 0x35a7348c8678500430485da671d4fad61f7a6bfefe061668f2e3319f0a9c9fa8. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e16b97ee-6ec3-4c3a-9ffe-cea21bd5e860.json and https://artists.proofprofile.net/proofs/artist/e16b97ee-6ec3-4c3a-9ffe-cea21bd5e860.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
9년만에 대학교를 졸업한 지현우는 환경파괴의 심각성을 인지하고 생명의 근원인 지구를 지키기위해 행동하기로 결심한다
I need Delta-9-THC in South Korea because I've had Tourette Syndrome since I was 10