{ (json object)
"isvalid" : true|false, (boolean) If the address is valid or not. If not, this is the only property returned.
"address" : "str", (string) The bitcoin address validated
"scriptPubKey" : "hex", (string) The hex-encoded scriptPubKey generated by the address
"isscript" : true|false, (boolean) If the key is a script
"iswitness" : true|false, (boolean) If the address is a witness address
"witness_version" : n, (numeric, optional) The version number of the witness program
"witness_program" : "hex" (string, optional) The hex value of the witness program
}