{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What types of parameters and technologies does the BLS multi-signature scheme in blockchain adopt for block signatures?","a":"Key Generation: The private key is a random number, and the public key is generated based  on the private key and the selected elliptic curve and generator."}]}],"pr":"1025c95dc9bc34eff97293521621af859c9aaf080c0f68ef8628cc440b4525a5"}