Isaac Stanmore (born 16 November 1988) is an English actor best known for playing Saul in the stage adaptation of Hetty Feather and Young Arthur Bullimore in The Incredible Adventures of Professor Bra
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 0x7b1b1a16b98b928342adbac0bfb4cb44be43bc6a914ab493b2275d5cce4cc028. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34f6f88d-b1dc-411c-8c74-ae81ed0e2bd7.json and https://artists.proofprofile.net/proofs/artist/34f6f88d-b1dc-411c-8c74-ae81ed0e2bd7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.