Mia Smith (born 13 May 1994) is an English actress, best known for her role as Chloe Moore in Grange Hill. Career Smith appeared in a Max Speilman camera advert in 2000. In 2003, Smith appeared in Bl
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 0x8b4f10ca390ca2c0a2f87032a5897d7da3651843d48a7fc039b4a8d63b6ee89e. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c62c0bec-e116-47d6-9ede-ce6ca792ea16.json and https://artists.proofprofile.net/proofs/artist/c62c0bec-e116-47d6-9ede-ce6ca792ea16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).