Carlos Fuentes Macías (;"Fuentes". Webster's New World College Dictionary. ; November 11, 1928 – May 15, 2012) was a Mexican novelist, essayist and ambassador to France. Among his works are The Death
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 0xb3286ba37e12ee992bbc7dd6f4d27b12810ee851feb0ac8ef5e1f3e62db0e2d1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2e31076-49f6-4722-9a86-70a69760fc8b.json and https://artists.proofprofile.net/proofs/artist/d2e31076-49f6-4722-9a86-70a69760fc8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).