Juan Carlos Ozuna Rosado (; born March 13, 1992), known professionally as Ozuna, is a Puerto Rican singer and rapper. Five of his studio albums have topped the Billboard Top Latin Albums chart, with
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 0xaf93018843ee296fe47020806d98592a015e69afbe4500b59f5ff85642b8f6ab. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49282aaa-eed2-4477-9a2b-e1a0005d5886.json and https://artists.proofprofile.net/proofs/artist/49282aaa-eed2-4477-9a2b-e1a0005d5886.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).