{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can efficient pruning algorithms be used in blockchain to address the rapidly growing storage cost issue of the ledger?","a":"Security-based pruning: This method involves trimming the ledger based on the  number of tokens held by the node or other security indicators. Nodes holding more tokens have higher stakes, so their generated blocks are more likely to be retained in the trimmed ledger."}]}],"pr":"721892343d036b0c304ade94a72abf1c0b731e762ddfa9b3efd7f014b257f49a"}