Coulter may refer to: People Coulter (surname) Coulter Osborne (1934–2023), Canadian arbitrator and former Associate Chief Justice of Ontario Places Coulter, South Lanarkshire, Scotland, a villag
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 0x16f60738ceb40a5472294cc9e1986d641a3f591f0ca23ceda533863a55a1ef1b. 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/e104cf86-2b27-40a3-b83c-612e396449b1.json and https://artists.proofprofile.net/proofs/artist/e104cf86-2b27-40a3-b83c-612e396449b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).