{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The upgrade module in the blockchain tracks the current highest bidder - who maintains this information?","a":"The upgrade module in blockchain primarily relies on smart contracts to maintain the current highest bid. A smart contract is an automated program that runs on the blockchain, reviewing and processing transactions according to predefined rules. In upgradable smart contracts, the highest bid serves as one of the crucial monitoring indicators to ensure the validity and legality of bids. Meanwhile, other participants can query the current highest bid by calling relevant functions  in the smart contract, thus ensuring transparency of information."}]}],"pr":"f68065cb0ef756bf7db50d3b6498234ef6ec4d15774ee84c22cd962a6b70b9f2"}