Carlos Alberto Zamora Castellanos (born 14 January 1996) is a Mexican professional footballer who plays as a centre-back for Liga de Expansión MX club Tepatitlán, on loan from Guadalajara. References
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 0x1b38dee78d4e6a474b152cb96d9117d8da2bb6a9cc2d4206bf72306b00797e5e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff220de3-0566-47ee-b5ff-4ab09a75817d.json and https://artists.proofprofile.net/proofs/artist/ff220de3-0566-47ee-b5ff-4ab09a75817d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).