{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The purpose of using a two-step confirmation process for payments in a blockchain is to:","a":"In blockchain, the purpose of using a two-step confirmation process for payments is to ensure the security and accuracy of transactions. The first step is called pre-confirmation, which involves broadcasting the payment information to the blockchain network, allowing the nodes in the network to become aware of the existence of the transaction. The second step is confirmation, where after waiting for a period of time, if the transaction is packaged into a block in the blockchain and confirmed by multiple nodes, the transaction is considered valid. The  two-step confirmation process prevents double-spending attacks (Double-Spending Attack) and ensures the secure transfer of funds. Additionally, it enhances the transparency and traceability of the system because each transaction leaves a trail on the blockchain, making the transaction process more reliable and trustworthy."}]}],"pr":"b76d284e6410c5e10fec1b7b3ebd46ae5f28e31c517f00872a8faddd4c296978"}