{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does PSBT implement offline signing in blockchain?","a":"The PSBT (Partially Signed Bitcoin Transaction) in blockchain is a partially signed Bitcoin transaction that enables offline signing. The main purpose  of PSBT is to address the transaction malleability attack in Bitcoin transactions. The process of implementing offline signing is as follows:\\n\\n1. First, create a PSBT transaction that contains input (in) and output (out) nodes. The input node contains an unlock script, and the output node contains a lock script.\\n\\n2. Next, calculate the hash value of the transaction (tx-hash). According to"}]}],"pr":"48ab0c3eb2a94d3c6d08fe4bec459b829ea284f66835b04b98ea9337239314e4"}