Robin McLaurin Williams (July 21, 1951August 11, 2014) was an American actor and comedian. Known for his improvisational skills and the wide variety of characters he created spontaneously and portraye
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 0x02669fe197f59b7c1c85f650cb765cf25facc815b1ba35bc5934576c1c0de06f. 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/6e7b5be1-3634-4e9b-bedf-b736c52452df.json and https://artists.proofprofile.net/proofs/artist/6e7b5be1-3634-4e9b-bedf-b736c52452df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).