{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the double-spending problem solved in a blockchain network?","a":"The double-spending problem in blockchain networks is solved through a series of technical means and consensus mechanisms. Firstly, decentralized peer-to-peer value transfer systems, such as Bitcoin, introduce the UTXO (Unspent Transaction Output) model, treating each transaction as an independent unit. When a transaction is broadcasted to the blockchain network, the nodes that receive the transaction verify it, checking whether the transaction is included in the unspent transaction list, thereby preventing the same asset from being used repeatedly.↵↵Secondly, timestamp technology also plays a key role in blockchain networks. In the Bitcoin  network, transaction records are organized in chronological order, ensuring that transactions are processed in a linear and time-ordered manner. This prevents conflicting transactions from occurring and maintains the integrity of the blockchain."}]}],"pr":"1e075a4b0c32ebe606e6958a5115847f3b07067a4b92ed3099a3fb528acab321"}