{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you handle the undo delegation operation in a blockchain?","a":"Broadcast Delegation Release Information: After the validation is passed, the node broadcasts the delegation release information  to the entire blockchain network, informing other nodes of the delegation release operation."}]}],"pr":"6e6c1e2b551a5403fdf1e48656d49c6fdf50f2228fea2db233b26c2fce63ff05"}