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Telecomunicações

Telefónica, gigante espanhola, usará Chainlink (LINK) para evitar fraudes

Uma integração interessante dentro dessa parceria é o uso das Funções Chainlink com a API GSMA Open Gateway SIM SWAP, introduzida pela operadora Vivo (Telefónica Brasil).

15 fev 2024 · 2 min

Finanças

Como a Oi foi de R$114,7 a R$0,23 na bolsa em uma década

Queridinha do governo, a empresa apostou em crescer por aquisições, deixando de lado a própria capacidade de investir.

2 fev 2023 · 4 min

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Telecomunicações

Telefónica, gigante espanhola, usará Chainlink (LINK) para evitar fraudes

Como a Oi foi de R$114,7 a R$0,23 na bolsa em uma década

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