Let us assume that a user creates one address on the Bitcoin network and one address on the Ethereum network. Because there were no relationships among these addresses, the knowledge graph creates two anonymous users, i.e., AnonymousUser1 and AnonymousUser2. AnonymousUser1 owns the Bitcoin addresses (i.e., WalletAddress3), and AnonymousUser2 has one Ethereum address, i.e., WalletAddress1. Various information related to a wallet address is stored in the graph. For example, the WalletAddress3 entity contains the average balance, the total amount of ETHs transferred in and out, the total number of transactions, or the average, median, mode, and highest number of ETHs transferred in one transaction.