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    Adam seems to be making sense to me. Only querying a single node
    when an address in my wallet matches the block filter seems to be
    pretty efficient. The downside is it relies entirely on Tor for
    privacy, but then again it's not the only aspect of spv clients that
    require it for privacy (there's broadcasting for example). <br>
    <br>
    And on a related note, if we eventually do end up receiving bip70
    payments directly, we still need to query for block inclusion and
    that would seem to be an easy way to do it.<br>
    <br>
    <div class="moz-cite-prefix">On 02/20/2015 12:53 PM, Mike Hearn
      wrote:<br>
    </div>
    <blockquote
cite="mid:CANEZrP21+0kLCX2sanFYFKEQj4iGgMmmA5sc3k_y+mpx9WC09A@mail.gmail.com"
      type="cite">
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          <div class="gmail_quote">
            <blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">This
              is talking about a committed bloom filter. Not a committed
              UTXO set.<br>
            </blockquote>
            <div><br>
            </div>
            <div>I read the following comment to mean it requires the
              UTXO commitments. Otherwise I'm not sure how you prove
              absence of withholding with just current block
              structures+an extra filter included in the block:</div>
            <div><br>
            </div>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span
                style="font-size:12.8000001907349px">but with the bloom
                commitment (and UTXO trie organised commitment) he<br>
              </span><span style="font-size:12.8000001907349px">can
                verify that the positive hits are correct via the merkle
                path, and<br>
              </span><span style="font-size:12.8000001907349px">that the
                false positives are not being wrongly withheld by
                obtaining<br>
              </span><span style="font-size:12.8000001907349px">merkle
                path proof that they are not in the trie</span> </blockquote>
          </div>
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        <div class="gmail_extra"><br>
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