The blockchain is a technology for electronic transactions that does not rely on trust but
rather mathematics and computers. The technology allows the creation of a peer-to-peer
network of nodes which maintains a shared database (ledger). Nodes record public history
of transactions that quickly becomes computationally impractical for an attacker to change if
honest nodes control a majority of computational power. Nodes are owned by independent
members that can freely share their computational power to the network and get a revenue …