El Mago (Spanish for "the magician") or Mago is a nickname given to: Pablo Aimar (born 1979), Argentine retired footballer Guido Alvarenga (born 1970), Paraguayan former footballer Thiago Alcântar
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 0xfd90f78a60fda08b8ec2ca239429f51b6c6b201f1967991d658d7a34c0d78193. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4fd5209-9452-4dd2-96a6-03dcc3ad0d86.json and https://artists.proofprofile.net/proofs/artist/e4fd5209-9452-4dd2-96a6-03dcc3ad0d86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).