Materia 1: DID do Serpro https://www.serpro.gov.br/menu/noticias/noticias-2020/identidade-descentralizada-aposta-serpro-1
Materia 2: Aduanas no Mercosul https://cointelegraph.com.br/news/irs-officially-launches-bconnect-application-that-links-mercosur-customs-with-blockchain
Materia 3: Token de Turismo https://www.blocknews.com.br/index.php/2020/09/23/mercado-bitcoin-e-finalista-em-desafio-de-inovacao-com-token-para-turismo/
