Douglas ("Doug") Fernández (born November 22, 1959) is a retired male decathlete from Venezuela. His major achievement was winning the silver medal at the 1983 Pan American Games in Caracas. He repres
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 0x935785b515ffb9121900c64fa6aac1eb2bdbc057db33c53b0c4c69a28f2c9c1c. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aedd517e-b578-4669-9617-8bc296662f8d.json and https://artists.proofprofile.net/proofs/artist/aedd517e-b578-4669-9617-8bc296662f8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).