{"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":"Hash Function: In the signature process, the message to be signed is subjected to a hash operation to obtain a hash value. The role of the hash function is to convert the message into a fixed-length value for subsequent operations."}]}],"pr":"b67ebc39af1090e84d0edc30936e6593b5e122c71a7c1c1234aaf0aa4fcb93cc"}