Ana Paula Leandro de Oliveira Mourão ( Leandro de Oliveira; born 2 May 1976) is a Brazilian lawyer and military officer who served as Second Lady of Brazil from 2019 to 2023. She's the second spouse o
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 0xc5824915032d34fcf377a825c6a625efc47337480074e9f0be9d399cddde99dd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d6e439d-e24c-47d0-a741-0109b15618db.json and https://artists.proofprofile.net/proofs/artist/0d6e439d-e24c-47d0-a741-0109b15618db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).