Blake Keenan Harrison (born July 22, 1985) is an English actor. He is best known for playing Neil Sutherland in the BAFTA-winning E4 comedy The Inbetweeners and more recently as 'Medium' Dan, in the I
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 0x66e0eeb3ae50d70861ba8449a3e9c07c333ce86d034da31d60705a3df59297a2. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5697c136-3160-43b6-ae4a-9f8860417c5a.json and https://artists.proofprofile.net/proofs/artist/5697c136-3160-43b6-ae4a-9f8860417c5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).