Alex Brown may refer to: Sports Alex Brown (cornerback) (born 1996), American football player Alex Brown (defensive end) (born 1979), American football player Alex Brown (footballer, born 1914) (
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 0xd4db1f8a4942c8e05bceeaf69ba7d067102ee3192a70c15cd61fd77c137c83b5. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/227d55f7-369f-413b-a19d-b8093e2ef031.json and https://artists.proofprofile.net/proofs/artist/227d55f7-369f-413b-a19d-b8093e2ef031.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).