Samuel or Sam Roberts may refer to: Arts and entertainment Sam Roberts (journalist) (born 1947), American journalist for The New York Times Sam Roberts (singer-songwriter) (born 1974), Canadian singe
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834f901ff882eb5f1dfc5eac202316e4c93b7917b29812f991f41fb3f1103ab3. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e40176dd-7425-4e60-900e-666e0a16015e.json and https://artists.proofprofile.net/proofs/artist/e40176dd-7425-4e60-900e-666e0a16015e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).