Nicholas Maddox (November 9, 1886 – November 27, 1954) was an American professional baseball pitcher. He played in Major League Baseball for the Pittsburgh Pirates from 1907 through 1910. Maddox is on
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 0x00d93aa48c81e2d3b12cd9ddaafbaf7a1e2f37f3fd2ef8f837ea4cc4c4966df6. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d69446b-af6f-4293-9145-f4bdac22b77a.json and https://artists.proofprofile.net/proofs/artist/2d69446b-af6f-4293-9145-f4bdac22b77a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).