ss='kw'>if</span> <span class='ivar'>@public_key</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span>
  <span class='kw'>return</span> <span class='kw'>false</span> <span class='kw'>if</span> <span class='ivar'>@withdrawal_address</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span>
  <span class='kw'>return</span> <span class='kw'>false</span> <span class='kw'>if</span> <span class='ivar'>@slashed</span><span class='period'>.</span><span c