Rita Macedo (April 21, 1925 – December 5, 1993) was a Mexican actress and dressmaker. She was nominated for an Ariel Award for her 1956 performance in "Ensayo de un crimen" and in 1991 for a TVyNovela
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 0xa6b5dabb5561b48b1c682ba9dfa46360103a54fa8bb0d20777ef09f9b8f5d224. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63b422e4-7836-4946-9824-b19476f1d92c.json and https://artists.proofprofile.net/proofs/artist/63b422e4-7836-4946-9824-b19476f1d92c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).