Sammy Brown (born April 17, 1990) is an American former professional football linebacker. He was a member of the Ottawa Redblacks of the Canadian Football League (CFL). He was signed by the Rams as an
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 0x709fa0ec2bfa9cf3e1d411e6b284e162f576399e618a0748540f48bc44803e19. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd1cc702-7500-4853-9345-1374e1c37aab.json and https://artists.proofprofile.net/proofs/artist/dd1cc702-7500-4853-9345-1374e1c37aab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).