Stephen Sloan (born June 24, 1936) is an American political scientist known for studying terrorism and political violence. Biography Sloan received his B.A. from Washington Square College at New York
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6e0c271170eefae00c98352815a12f23d15140797f1c22b1dc1f54085a4cf1. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/025712fa-93ff-4924-99d6-a8d063975e96.json and https://artists.proofprofile.net/proofs/artist/025712fa-93ff-4924-99d6-a8d063975e96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).