El indio () is a 1939 Mexican drama film directed by Armando Vargas de la Maza. It was released in Mexico on February 10, 1939 and in United States on May 12 of the same year. Consuelo Frank and Pedro
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7630a998f0c558dd5fe96696e522270edcb9f8545c275a6a5b0f7a09f4582a9. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef8c7d54-8d5c-4fcb-b8c3-a0fd25896df8.json and https://artists.proofprofile.net/proofs/artist/ef8c7d54-8d5c-4fcb-b8c3-a0fd25896df8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).