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Cryptocurrency (Blockchain (Transactions (Smart contract (Conditions and…

- - - - Defines rules of an agreement and enforces them
      - Conditions and dependencies
        
        Weather example, if it rains, pay x, else pay y
      - Immutable (unchangeable)
      - Each node has to solve a math problem (hash) to verify that a transaction is valid. Once verified, the node adds 1 valid vote
        
        At least 51% of nodes must agree in validity for the transaction to apply
        
        voting nodes are Miners