{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to generate key pairs on a blockchain?","a":"Generate a private key: A private key is a randomly selected 32-byte (or 64-byte) number with  a very large range. The generation process of the private key is usually secure and highly random. In the Bitcoin system, the generation of private keys is completed by mining nodes through complex calculations."}]}],"pr":"15e4114bb34415c2728c0aef0745d6311cd7c20e665e5f8b7f254e339820e29f"}