def validate_script_sigs
      bad_inputs = []
      valid = true
      @inputs.each_with_index do |input, index|
        # TODO: confirm whether we need to mess with the block_timestamp arg
        unless self.native.verify_input_signature(index, input.output.transaction.native)
          valid = false
          bad_inputs << index
        end

      end
      {:valid => valid, :inputs => bad_inputs}
    end
def validate_script_sigs
      bad_inputs = []
      valid = true
      @inputs.each_with_index do |input, index|
        # TODO: confirm whether we need to mess with the block_timestamp arg
        unless self.native.verify_input_signature(index, input.output.transaction.native)
          valid = false
          bad_inputs << index
        end

      end
      {:valid => valid, :inputs => bad_inputs}
    end
Verify that the script_sigs for all inputs are valid.