Simon Brown may refer to: Simon Brome (died 1603), or Brown, MP for Canterbury Simon Brown (author) (born 1956), Australian science fiction writer Simon Brown (cricketer) (born 1969), English cricket
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 0x2e9df0ab84f174bf228a4df80343354710ca8faf35ca7a5d08802b40148d4107. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1e43172-4f54-4179-9ee0-eded53164559.json and https://artists.proofprofile.net/proofs/artist/d1e43172-4f54-4179-9ee0-eded53164559.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).