{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why do we need to check the UTXO information before sending a transaction in a blockchain?","a":"Confirm transaction validity: UTXO is an important concept in Bitcoin transactions, recording the unspent Bitcoins  owned by Bitcoin holders. Before sending a transaction, checking the UTXO information ensures that the sender has enough Bitcoin balance to complete the transaction, avoiding invalid transactions."}]}],"pr":"c3d323979c7f76bfb4453fe597ff2e5ba805f918742be942261d565369bba034"}