Daniel Oliver may refer to: Daniel Oliver (botanist) (1830–1916), British botanist Daniel Oliver (physician) (1787–1842), American physician Daniel Oliver (policymaker) (born 1939), chairman of US
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 0xde2b8ccda11f7ceabbd142349bcd83afc78ffb216fcaed4cc8631efbddb46e77. 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/efae50e2-f03d-4a93-835a-881daceb25a9.json and https://artists.proofprofile.net/proofs/artist/efae50e2-f03d-4a93-835a-881daceb25a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).