Instead of having a   blockchain   that relies on the exchange of   cryptocurrencies   with anonymous users on a public network (as is the case with   bitcoin ), a   blockchain   for business is a private, permissioned network with known identities and without the need for   cryptocurrencies . To further understand how a  blockchain  for business works, and to appreciate its potential for revolutionizing business networks, you need to understand the four key concepts of  blockchain  for business These four concepts are explained in this section. Shared ledger they’ve been used i n  double-entry bookkeeping since the 13th century. What is new is the concept of a shared, distributed ledger — an immutable record of all transactions on the network, a record that all network participants can access. With a shared ledger, transactions are recorded only once, eliminating the duplication of effort that’s typical of traditio...
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