Preciado is a Spanish surname. Notable people with the surname include: Ayrton Preciado (born 1994), Ecuadorian footballer Carlos Preciado (born 1985), Colombian professional soccer player Édison Pre
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 0x6e8333acd05cf61c82540fa88a572e8b78d6262c38a2666841e03d89f8624135. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/834eee94-06b1-4adb-a94c-e829406492d6.json and https://artists.proofprofile.net/proofs/artist/834eee94-06b1-4adb-a94c-e829406492d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).