Earl Smith is the name of: Sports Earl Smith (catcher) (1897–1963), MLB catcher, 1919–1930 Earl Smith (1910s outfielder) (1891–1943), MLB outfielder, 1916–1922 Earl Smith (1950s outfielder) (1928–201
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 0xd2dea11ad6d7f4899c655ab25f11711a429ff352b370e4ee6f1863206456dce1. Chain 2 (Bitcoin): anchored in block 953843 (2026-06-15T22:27:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0031ab9c-2087-4b95-b9b9-710be7d9aca2.json and https://artists.proofprofile.net/proofs/artist/0031ab9c-2087-4b95-b9b9-710be7d9aca2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).