Littlemore is a district and civil parish in Oxford, England. The civil parish includes part of Rose Hill. It is about southeast of the city centre of Oxford, between Rose Hill, Blackbird Leys, Cowle
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 0xc9d9f1e4118dc40c1559cdc69e048e28cb117cf942b4416eee5dce4ccb36939e. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bab7073b-dc8e-411a-94f7-e3164fc13d58.json and https://artists.proofprofile.net/proofs/artist/bab7073b-dc8e-411a-94f7-e3164fc13d58.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).