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<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Executing A DLC with Bitcoin-S · bitcoin-s</title><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta name="generator" content="Docusaurus"/><meta name="description" content="## Executing A Discreet Log Contract (DLC)"/><meta name="docsearch:version" content="1.7.0"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Executing A DLC with Bitcoin-S · bitcoin-s"/><meta property="og:type" content="website"/><meta property="og:url" content="https://bitcoin-s.org/"/><meta property="og:description" content="## Executing A Discreet Log Contract (DLC)"/><meta property="og:image" content="https://bitcoin-s.org/img/undraw_online.svg"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://bitcoin-s.org/img/undraw_tweetstorm.svg"/><link rel="shortcut icon" href="/img/favicon.ico"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css"/><script>
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</script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/bitcoin-s/bitcoin-s/blob/master/docs/wallet/dlc.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">Executing A DLC with Bitcoin-S</h1></header><article><div><span><h2><a class="anchor" aria-hidden="true" id="executing-a-discreet-log-contract-dlc"></a><a href="#executing-a-discreet-log-contract-dlc" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Executing A Discreet Log Contract (DLC)</h2>
<h2><a class="anchor" aria-hidden="true" id="step-1-get-bitcoin-s-setup"></a><a href="#step-1-get-bitcoin-s-setup" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Step 1: Get Bitcoin-S Setup</h2>
<p>See the <a href="/docs/getting-setup">setup document</a>.</p>
<p>Make sure to follow <a href="/docs/getting-setup#step-4-optional-discreet-log-contract-branch">Step 4</a> to checkout the <code>adaptor-dlc</code> feature branch.</p>
<h3><a class="anchor" aria-hidden="true" id="using-the-gui"></a><a href="#using-the-gui" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Using the GUI</h3>
<p>To first start up the GUI you first need to start your bitcoin-s server and gui with</p>
<pre><code class="hljs css language-bashrc">sbt bundle/<span class="hljs-keyword">run</span><span class="bash">
</span></code></pre>
<p>or if your bitcoin-s server is already running, you can run the standalone gui with</p>
<pre><code class="hljs css language-bashrc">sbt gui/<span class="hljs-keyword">run</span><span class="bash">
</span></code></pre>
<p>or by following the instructions for building and running the GUI <a href="/docs/getting-setup#step-5-setting-up-a-bitcoin-s-server">here</a></p>
<h2><a class="anchor" aria-hidden="true" id="step-2-agree-on-contract-terms"></a><a href="#step-2-agree-on-contract-terms" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Step 2: Agree On Contract Terms</h2>
<p>Both parties must agree on all fields from the table below:</p>
<table>
<thead>
<tr><th style="text-align:center">Field Name</th><th style="text-align:center">Description</th></tr>
</thead>
<tbody>
<tr><td style="text-align:center">contractInfo</td><td style="text-align:center">Information about payouts and which oracles to use</td></tr>
<tr><td style="text-align:center">collateral</td><td style="text-align:center">Number of sats the initiator is putting up</td></tr>
<tr><td style="text-align:center">locktime</td><td style="text-align:center">Locktime of the CETs</td></tr>
<tr><td style="text-align:center">refundlocktime</td><td style="text-align:center">Locktime of the Refund Transaction</td></tr>
<tr><td style="text-align:center">feerate</td><td style="text-align:center">Fee rate in sats/vbyte</td></tr>
</tbody>
</table>
<blockquote>
<p>Note: if you wish to set up your own oracle for testing, you can do so by checking out our <a href="/docs/oracle/oracle-server">oracle rpc server</a> or <a href="https://github.com/benthecarman/krystal-bull">Krystal Bull</a></p>
</blockquote>
<h2><a class="anchor" aria-hidden="true" id="step-3-set-up-the-dlc"></a><a href="#step-3-set-up-the-dlc" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Step 3: Set up The DLC</h2>
<h3><a class="anchor" aria-hidden="true" id="using-the-gui-1"></a><a href="#using-the-gui-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Using the GUI</h3>
<p>If you're a visual learner there is a <a href="https://www.youtube.com/watch?v=zy1sL2ndcDg">video demo</a> that explains this process in detail.
But do note that this demonstrates the old non-adaptor version of DLCs so that the Offer, Accept, Sign protocol is the same, but the contents will be different.</p>
<p>If using a numeric contract and/or multiple oracles, messages can get very large and sometimes even too large to for the application.
To solve this there is an <code>Export to file</code> button located under the text box for the messages your wallet will construct.
This can be used to export a DLC message to a file and then the file can be sent to your counter party.
If you receive a file from a counter-party, there is an <code>Import file</code> button on every dialog you input a DLC message.
This can be used to import the file of the DLC message from your counter-party.</p>
<h4><a class="anchor" aria-hidden="true" id="creating-the-offer"></a><a href="#creating-the-offer" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Creating The Offer</h4>
<p>Once the terms are agreed to, either party can use the <code>Offer</code> button and enter each of the fields from the table above.</p>
<h4><a class="anchor" aria-hidden="true" id="accepting-the-offer"></a><a href="#accepting-the-offer" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Accepting The Offer</h4>
<p>Upon receiving a DLC Offer from your counter-party, you can use the <code>Accept</code> button and paste in the DLC Offer.</p>
<h4><a class="anchor" aria-hidden="true" id="signing-the-dlc"></a><a href="#signing-the-dlc" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Signing The DLC</h4>
<p>Upon receiving a DLC Accept message from your counter-party, you can use the <code>Sign</code> button and paste in the DLC Accept.</p>
<h4><a class="anchor" aria-hidden="true" id="adding-dlc-signatures-to-your-database"></a><a href="#adding-dlc-signatures-to-your-database" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Adding DLC Signatures To Your Database</h4>
<p>Upon receiving a DLC Sign message from your counter-party, add their signatures to your database using the <code>Add Sigs</code> button and paste in the message.
After doing so you can get the fully signed funding transaction using the <code>Get Funding Tx</code> button. This will return the fully signed serialized transaction.</p>
<h3><a class="anchor" aria-hidden="true" id="using-the-cli"></a><a href="#using-the-cli" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Using the CLI</h3>
<p>If using a numeric contract and/or multiple oracles, messages can get very large and sometimes even too large to for the application.
To solve this there are RPC calls where you can give a file instead of the entire DLC message.
To output a file you simply just need to pipe the output of a command into a file.</p>
<p>For example:</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli acceptdlcoffer [offer] &gt; myDLCAccept.txt
</code></pre>
<h4><a class="anchor" aria-hidden="true" id="creating-the-offer-1"></a><a href="#creating-the-offer-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Creating The Offer</h4>
<p>Once these terms are agreed to, either party can call on <code>createdlcoffer</code> with flags for each of the fields in the table above. For example:</p>
<pre><code class="hljs css language-bashrc">./app/cli/target/universal/stage/bitcoin-s-cli createdlcoffer <span class="hljs-comment">[contractInfo]</span> <span class="hljs-comment">[collateral]</span> <span class="hljs-comment">[feerate]</span> <span class="hljs-comment">[locktime]</span> <span class="hljs-comment">[refundlocktime]</span>
</code></pre>
<h4><a class="anchor" aria-hidden="true" id="accepting-the-offer-1"></a><a href="#accepting-the-offer-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Accepting The Offer</h4>
<p>Upon receiving a DLC Offer from your counter-party, the following command will create the serialized accept message:</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli acceptdlcoffer [offer]
</code></pre>
<p>or from file:</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli acceptdlcofferfromfile [filepath]
</code></pre>
<h4><a class="anchor" aria-hidden="true" id="signing-the-dlc-1"></a><a href="#signing-the-dlc-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Signing The DLC</h4>
<p>Upon receiving a DLC Accept message from your counter-party, the following command will generate all of your signatures for this DLC:</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli signdlc [accept]
</code></pre>
<p>or from file:</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli signdlcfromfile [filepath]
</code></pre>
<h4><a class="anchor" aria-hidden="true" id="adding-dlc-signatures-to-your-database-1"></a><a href="#adding-dlc-signatures-to-your-database-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Adding DLC Signatures To Your Database</h4>
<p>Upon receiving a DLC Sign message from your counter-party, add their signatures to your database by:</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli adddlcsigs [sign]
</code></pre>
<p>or from file:</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli adddlcsigsfromfile [filepath]
</code></pre>
<h4><a class="anchor" aria-hidden="true" id="getting-funding-transaction"></a><a href="#getting-funding-transaction" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Getting Funding Transaction</h4>
<p>You are now fully setup and can generate the fully signed funding transaction for broadcast using</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli getdlcfundingtx [contractId]
</code></pre>
<p>where the <code>contractId</code> is in all but the messages other than the DLC Offer message, and is also returned by the <code>adddlcsigs</code> command.</p>
<p>Alternatively, you can use the <code>getdlcs</code> command to list all of your current DLCs saved in your wallet.</p>
<h2><a class="anchor" aria-hidden="true" id="step-4-executing-the-dlc"></a><a href="#step-4-executing-the-dlc" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Step 4: Executing the DLC</h2>
<h3><a class="anchor" aria-hidden="true" id="using-the-gui-2"></a><a href="#using-the-gui-2" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Using the GUI</h3>
<h4><a class="anchor" aria-hidden="true" id="execute"></a><a href="#execute" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Execute</h4>
<p>You can execute the DLC unilaterally with the <code>Execute</code> button which will require the oracle signature.
This will return a fully signed Contract Execution Transaction for the event signed by the oracle.</p>
<h4><a class="anchor" aria-hidden="true" id="refund"></a><a href="#refund" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Refund</h4>
<p>If the <code>refundlocktime</code> for the DLC has been reached, you can get the fully-signed refund transaction with the <code>Refund</code> button and entering the <code>contractId</code>.</p>
<h3><a class="anchor" aria-hidden="true" id="using-the-cli-1"></a><a href="#using-the-cli-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Using the CLI</h3>
<h4><a class="anchor" aria-hidden="true" id="execute-1"></a><a href="#execute-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Execute</h4>
<p>Upon receiving an oracle signature, you can execute the DLC unilaterally with</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli executedlc [contractId] [signatureTLVs]
</code></pre>
<p>which will return fully signed Contract Execution Transaction for the event signed by the oracle.</p>
<h4><a class="anchor" aria-hidden="true" id="refund-1"></a><a href="#refund-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Refund</h4>
<p>If the <code>refundlocktime</code> for the DLC has been reached, you can get the fully-signed refund transaction with</p>
<pre><code class="hljs css language-bashrc">.<span class="hljs-regexp">/app/</span>cli<span class="hljs-regexp">/target/u</span>niversal<span class="hljs-regexp">/stage/</span>bitcoin-s-cli executedlcrefund [contractId]
</code></pre>
</span></div></article></div><div class="docLastUpdate"><em>Last updated on 1/22/2021 by benthecarman</em></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/wallet/address-tagging"><span class="arrow-prev">← </span><span>Address and UTXO tagging</span></a><a class="docs-next button" href="/docs/wallet/wallet-rescan"><span>Wallet Rescans</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#executing-a-discreet-log-contract-dlc">Executing A Discreet Log Contract (DLC)</a></li><li><a href="#step-1-get-bitcoin-s-setup">Step 1: Get Bitcoin-S Setup</a><ul class="toc-headings"><li><a href="#using-the-gui">Using the GUI</a></li></ul></li><li><a href="#step-2-agree-on-contract-terms">Step 2: Agree On Contract Terms</a></li><li><a href="#step-3-set-up-the-dlc">Step 3: Set up The DLC</a><ul class="toc-headings"><li><a href="#using-the-gui-1">Using the GUI</a></li><li><a href="#using-the-cli">Using the CLI</a></li></ul></li><li><a href="#step-4-executing-the-dlc">Step 4: Executing the DLC</a><ul class="toc-headings"><li><a href="#using-the-gui-2">Using the GUI</a></li><li><a href="#using-the-cli-1">Using the CLI</a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/favicon.ico" alt="bitcoin-s" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/getting-started">Getting Started</a><a href="/docs/en/core/core-intro">Guides</a><a href="/api/org/bitcoins">API Reference</a></div><div><h5>Community</h5><a href="/en/users.html">User Showcase</a><a href="https://join.slack.com/t/suredbits/shared_invite/zt-eavycu0x-WQL7XOakzQo8tAy7jHHZUw" target="_blank" rel="noreferrer noopener">Slack</a><a href="https://gitter.im/bitcoin-s-core/">Gitter chat</a></div><div><h5>More</h5><a href="https://github.com/bitcoin-s/bitcoin-s">GitHub</a><a class="github-button" href="https://github.com/bitcoin-s/bitcoin-s" data-icon="octicon-star" data-count-href="/bitcoin-s/bitcoin-s-core/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2021 Suredbits &amp; the bitcoin-s developers</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
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// keyCode for '/' (slash)
if (e.keyCode === 191) {
const search = document.getElementById('search_input_react');
search && search.focus();
}
});
</script><script>
var search = docsearch({
apiKey: '0a510688bf8448e19aeb380377d328d3',
indexName: 'bitcoin-s',
inputSelector: '#search_input_react'
});
</script></body></html>
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