{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do nodes in a blockchain network encrypt and validate transactions?","a":"In a blockchain network, nodes ensure the security and validity of transactions through a series of encrypted and verified steps. First, transactions are broadcasted across the network, containing the addresses of the sender and receiver, the transaction amount, and other necessary information. Then, nodes in the network validate the transactions, which includes checking digital signatures to confirm the sender's ownership of the funds, ensuring that the transactions adhere to network rules, and verifying whether the transactions have sufficient balance.\n\nAfter validation, transactions are added to the node's local memory pool, a temporary storage area used to hold unconfirmed transactions waiting to be incorporated into the blockchain. Next, miners retrieve transactions from the memory pool and process them through a computational puzzle to compete for the right to add the transactions to the blockchain. The miner who solves the puzzle first gains the privilege of adding the transactions, along with a  corresponding reward. Once the transactions are added to the blockchain, they become immutable and secure, ensuring"}]}],"pr":"ea22c20da8bc29cce29f036aa3eb62c16442341a2bce88bc698b27e3268b625b"}