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markerWidth="12" markerUnits="userSpaceOnUse" refY="5" refX="9" id="arrowhead"><path d="M 0 0 L 10 5 L 0 10 z"></path></marker></defs><defs><marker refY="4" refX="16" orient="auto" markerHeight="8" markerWidth="15" id="crosshead"><path style="stroke-dasharray: 0, 0;" d="M 9,2 V 6 L16,4 Z" stroke-width="1px" stroke="#000000" fill="black"></path><path style="stroke-dasharray: 0, 0;" d="M 0,1 L 6,7 M 6,1 L 0,7" stroke-width="1px" stroke="#000000" fill="none"></path></marker></defs><defs><marker orient="auto" markerHeight="28" markerWidth="20" refY="7" refX="18" id="filled-head"><path d="M 18,7 L9,13 L14,7 L9,1 Z"></path></marker></defs><defs><marker orient="auto" markerHeight="40" markerWidth="60" refY="15" refX="15" id="sequencenumber"><circle r="6" cy="15" cx="15"></circle></marker></defs><g><rect class="note" ry="0" rx="0" height="52" width="272" stroke="#666" fill="#EDF2AE" y="75" x="-61"></rect><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="80" x="75"><tspan x="75">The seller creates an escrow account </tspan></text><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="96" x="75"><tspan x="75"> with specific terms and a public key EID</tspan></text></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="142" x="325">register escrow (EID, [m, M], starttime, endtime)</text><line style="fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine0" y2="175" x2="575" y1="175" x1="75"></line><g><rect class="activation0" ry="0" rx="0" height="48" width="10" stroke="#666" fill="#EDF2AE" y="175" x="570"></rect></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="190" x="323">(EID + sig_e(EID, [m, M], starttime, endtime))</text><line style="fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine0" y2="223" x2="75" y1="223" x1="570"></line><g><rect class="note" ry="0" rx="0" height="52" width="188" stroke="#666" fill="#EDF2AE" y="233" x="-19"></rect><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="238" x="75"><tspan x="75">Seller publishes the EID, </tspan></text><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="254" x="75"><tspan x="75"> for example for an auction</tspan></text></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="300" x="512">publish auction (EID, [m, M], starttime, endtime, sig)</text><line style="stroke-dasharray: 3, 3; fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine1" y2="333" x2="949" y1="333" x1="75"></line><g><rect class="note" ry="0" rx="0" height="53" width="326" stroke="#666" fill="#EDF2AE" y="343" x="786"></rect><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="348" x="949"><tspan x="949">An interested bidder can receive the list of</tspan></text><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="364" x="949"><tspan x="949"> depositors (not amounts) for the escrow account</tspan></text></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="411" x="762">list(EID)</text><line style="fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine0" y2="444" x2="575" y1="444" x1="949"></line><g><rect class="activation0" ry="0" rx="0" height="48" width="10" stroke="#666" fill="#EDF2AE" y="444" x="570"></rect></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="459" x="765">list of depositors</text><line style="fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine0" y2="492" x2="949" y1="492" x1="580"></line><g><rect class="note" ry="0" rx="0" height="52" width="315" stroke="#666" fill="#EDF2AE" y="502" x="791.5"></rect><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="507" x="949"><tspan x="949">A intereseted bidder can deposit coins into the </tspan></text><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="523" x="949"><tspan x="949">escrow account and receives a proof of escrow</tspan></text></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="569" x="762">deposit(EID, amount, coins[], DEPOSIT_ID)</text><line style="fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine0" y2="602" x2="575" y1="602" x1="949"></line><g><rect class="activation0" ry="0" rx="0" height="48" width="10" stroke="#666" fill="#EDF2AE" y="602" x="570"></rect></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="617" x="765">proof (EID, DEPOSIT_ID, [m,M])</text><line style="fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine0" y2="650" x2="949" y1="650" x1="580"></line><g><rect class="note" ry="0" rx="0" height="52" width="233" stroke="#666" fill="#EDF2AE" y="660" x="832.5"></rect><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="665" x="949"><tspan x="949">The bidder can now use the proof</tspan></text><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="681" x="949"><tspan x="949"> to participate in the auction</tspan></text></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="727" x="512">bid (EID, proof(EID, [m,M]))</text><line style="stroke-dasharray: 3, 3; fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine1" y2="760" x2="75" y1="760" x1="949"></line><g><rect class="note" ry="0" rx="0" height="52" width="299" stroke="#666" fill="#EDF2AE" y="770" x="799.5"></rect><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="775" x="949"><tspan x="949">The winning bidder provides a release token </tspan></text><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="791" x="949"><tspan x="949"> for the winning amount to the seller</tspan></text></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="837" x="512">EID, DEPOSIT_ID, amount, coins[], sig_b(...)</text><line style="fill: none;" marker-end="url(#arrowhead)" stroke="none" stroke-width="2" class="messageLine0" y2="870" x2="75" y1="870" x1="949"></line><g><rect class="note" ry="0" rx="0" height="36" width="208" stroke="#666" fill="#EDF2AE" y="880" x="-29"></rect><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 14px; font-weight: 400;" dy="1em" class="noteText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="885" x="75"><tspan x="75">The seller can claim the coins</tspan></text></g><text style="font-family: "trebuchet ms", verdana, arial, sans-serif; font-size: 16px; font-weight: 400;" dy="1em" class="messageText" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="931" x="325">claim(EID, DEPOSIT_ID, amount, coins[], sig_b, sig_s(sig_b))</text><line style="fill: none;" marker-end="url(#arrowhead)" stroke="none" 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