William Elroy Parker (born January 20, 1877), better known as Kid Parker, was an American professional boxer, physical culturist and promoter of vegetarianism. He was the first vegetarian boxer. Bio
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 0xe0737b7a01da6e65fb4d06ba883e9c576c3f6dd32c5ef923e48a71aa8c7ba3e9. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d632a73-b693-4563-bd39-236d0283957c.json and https://artists.proofprofile.net/proofs/artist/9d632a73-b693-4563-bd39-236d0283957c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).