Philip Stuart (1760 – August 14, 1830) was an American politician and soldier who represented the state of Maryland in the House of Representatives. Early life Philip Stuart was born near Fredericksb
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 0x494d2bd8605ec7ae5b14738b0278ff47ecd991f9e89bada8b5e3a4be3e7b0a18. 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/5f64c2aa-7f9e-4723-88ee-515782c108de.json and https://artists.proofprofile.net/proofs/artist/5f64c2aa-7f9e-4723-88ee-515782c108de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).