Claud is a given name. Notable people with the name include: Claud Allister (1888–1970), English actor Claud Beelman (1883–1963), American architect Claud Irvine Boswell (1742–1824), Scottish judge C
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 0xd72274c73ae660ada377f1563af656c3bcff791a18cc92f5fc5b2e95d48a55a8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ba4bfdc-e278-4c71-9f0f-b20d13adce40.json and https://artists.proofprofile.net/proofs/artist/6ba4bfdc-e278-4c71-9f0f-b20d13adce40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).