Secure scaling of electronic ledgers based on tangles

The paper deals with an electronic ledger based on the concept of blockchain. The development of the traditional blockchain is the tangle (tangle), which is represented by an oriented acyclic graph (DAG — Directed Acyclic Graph) and which securely stores transaction information. A centralized consensus implies a concentration of control functions in a single body. The scaling up of e-books in some cases poses threats of corruption and fraud. Three types of threats are considered that are determined by corruption and collusion of legal entities. Ensuring information security when scaling electronic books is a direction that begins to develop in connection with the growth of the digital economy.