Michael or Mike Brown may refer to: Academics Michael Barratt Brown (1918–2015), British economist, political activist and educator Michael Brown (physicist) (born 1946), Vice-Chancellor of Liverpo
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 0x90614b576353e32ab211caf824f153140456448c4d2125084117c05cf4259be7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d9cad0f-699d-4d50-ac70-57c291328e22.json and https://artists.proofprofile.net/proofs/artist/5d9cad0f-699d-4d50-ac70-57c291328e22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).