Alejandro Cruz may refer to: Alejandro Cruz Ortiz (1921–2007), Mexican luchador (professional wrestler) known as Black Shadow Alejandro Cruz (politician) (c. 1930–1993), Puerto Rican softball player
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 0xdf0e74950885c141882ff581d7821312dcd3c7784eab66e87891a311e50d5225. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b42b678-2738-4cac-9f8a-0ea2d35df803.json and https://artists.proofprofile.net/proofs/artist/1b42b678-2738-4cac-9f8a-0ea2d35df803.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).