Rob Hart (born 4 November 1974) is an English former American football placekicker in NFL Europe. He played for the England Monarchs in 1998 and Scottish Claymores from 1999 to 2004. He played college
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 0x3d1bd8c1137d41635be0a8c73e7e01ca8bce3c952dab781a27a396c32052e689. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a218ad2-752e-4270-a6e3-845d5716a6f4.json and https://artists.proofprofile.net/proofs/artist/1a218ad2-752e-4270-a6e3-845d5716a6f4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.