{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In what situations can blockchain achieve the Chat-to-Trade function?","a":"Immutable: The ledger of blockchain is jointly maintained by nodes distributed across the network, each of which has a copy of the same ledger. Any party wishing to tamper with the ledger needs to obtain the approval of other nodes in the  network, hence blockchain has a high degree of tamper resistance."}]}],"pr":"8666c83957b4019580fef08be342f982e0e0511712d6d17d6a2531f77f515365"}