Griffin Smith (July 13, 1885 – April 29, 1955)"Memorials", 9 Arkansas Law Review 352-53 (1954-1955). was chief justice of the Arkansas Supreme Court from 1937 until his death in 1955.The Arkansas Lawy
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 0xeb08a9871f5222ca8572a1f7ceb06da8241261c01b845086fba87b54d026c9aa. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f24ecb2-e9d5-43d0-825c-2aae6fc39d48.json and https://artists.proofprofile.net/proofs/artist/3f24ecb2-e9d5-43d0-825c-2aae6fc39d48.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.