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The Brazilian voting authority (TSE), has publicly declared it is studying blockchain as a technology that might help the organization in its task of organizing ballots. Celio Castro Wermerlinger, coordinator of modernization of the institution, stated that this decentralized ledger tech was included in a research program called “Elections of the Future.
https://news.bitcoin.com/brazilian-voting-authority-might-include-blockchain-tech-in-future-elections/