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dev-guide.html
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<!DOCTYPE html>
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<head>
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<meta name="author" content="Mastercoin Team">
<title>Mastercoin Developer’s Guide</title>
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<body class="article">
<div id="header">
<h1>Mastercoin Developer’s Guide</h1>
<span id="author" class="author">Mastercoin Team</span><br>
<span id="revnumber">version 0.1.3,</span>
<span id="revdate">September 29, 2014</span>
<br><span id="revremark">Early draft</span>
<div id="toc" class="toc">
<div id="toctitle">Table of Contents</div>
<ul class="sectlevel1">
<li><a href="#_introduction_to_mastercoin">1. Introduction to Mastercoin</a></li>
<li>
<ul class="sectlevel2">
<li><a href="#_mission">1.1. Mission</a></li>
<li><a href="#_features">1.2. Features</a></li>
<li><a href="#_history">1.3. History</a></li>
</ul>
</li>
<li><a href="#_overview_of_ecosystem">2. Overview of Ecosystem</a></li>
<li>
<ul class="sectlevel2">
<li><a href="#_implementations">2.1. Implementations</a></li>
<li>
<ul class="sectlevel3">
<li><a href="#imp-mastercoin-tools">2.1.1. Mastercoin Tools</a></li>
<li><a href="#imp-mastercore">2.1.2. Master Core</a></li>
<li><a href="#_other">2.1.3. Other</a></li>
</ul>
</li>
<li><a href="#_notable_wallet_applications">2.2. Notable Wallet Applications</a></li>
<li>
<ul class="sectlevel3">
<li><a href="#_omniwallet">2.2.1. Omniwallet</a></li>
<li><a href="#_masterchest">2.2.2. Masterchest</a></li>
<li><a href="#_other_2">2.2.3. Other</a></li>
</ul>
</li>
<li><a href="#_notable_master_currencies">2.3. Notable Master currencies</a></li>
<li>
<ul class="sectlevel3">
<li><a href="#_mastercoin">2.3.1. Mastercoin</a></li>
<li><a href="#_test_mastercoin">2.3.2. Test Mastercoin</a></li>
<li><a href="#_maidsafecoin">2.3.3. MaidSafeCoin</a></li>
<li><a href="#_other_3">2.3.4. Other</a></li>
</ul>
</li>
<li><a href="#_mastercoin_documentation_resources">2.4. Mastercoin Documentation & Resources</a></li>
</ul>
</li>
<li><a href="#_introduction_to_the_master_protocol">3. Introduction to the Master Protocol</a></li>
<li>
<ul class="sectlevel2">
<li><a href="#_overview_of_key_mastercoin_concepts_and_terminology">3.1. Overview of key Mastercoin concepts and terminology</a></li>
<li><a href="#_review_of_key_bitcoin_features_used_by_mastercoin">3.2. Review of key Bitcoin features used by Mastercoin</a></li>
<li><a href="#_introduction_to_the_specification_and_overview_of_it_s_contents">3.3. Introduction to the Specification and overview of it’s contents</a></li>
</ul>
</li>
<li><a href="#_getting_started">4. Getting Started</a></li>
<li>
<ul class="sectlevel2">
<li><a href="#_building_and_running_a_full_mastercoin_implementation">4.1. Building and running a full Mastercoin implementation</a></li>
<li>
<ul class="sectlevel3">
<li><a href="#_mastercoin_tools">4.1.1. Mastercoin-tools</a></li>
<li><a href="#_mastercore_aka_mastercoind">4.1.2. Mastercore (aka mastercoind)</a></li>
<li><a href="#_omniwallet_2">4.1.3. Omniwallet</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#_mastercoin_rpc_api">5. Mastercoin RPC API</a></li>
<li><a href="#_contributing_to_mastercoin">6. Contributing to Mastercoin</a></li>
<li>
<ul class="sectlevel2">
<li><a href="#_using_gpg_keys_for_git_commits">6.1. Using GPG keys for Git Commits</a></li>
<li>
<ul class="sectlevel3">
<li><a href="#_linux">6.1.1. Linux</a></li>
<li><a href="#_mac">6.1.2. Mac</a></li>
<li><a href="#_windows">6.1.3. Windows</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#_how_to_improve_this_document">7. How to improve this document</a></li>
</ul>
</div>
</div>
<div id="content">
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>The Mastercoin Developer’s Guide aims to be a comprehensive reference guide for Mastercoin developers. It provides a brief overview of Mastercoin, pointers to external Mastercoin documentation and resources, introductory information on the Mastercoin specification, and information on Mastercoin implementations and select applications.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_introduction_to_mastercoin">1. Introduction to Mastercoin</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_mission">1.1. Mission</h3>
<div class="paragraph">
<p>The Master Protocol facilitates the creation and trading of smart properties and user currencies as well as other types of smart contracts. Mastercoins serve as the binding between bitcoins (BTC), smart properties and smart contracts created on top of the Master Protocol.</p>
</div>
<div class="paragraph">
<p>Mastercoin enables Bitcoin ecosystem service providers to function in decentralized and p2p mode. Adoption of the Master Protocol will drive higher value economic transactions on the Bitcoin blockchain, which is good for Bitcoin miners and savers.</p>
</div>
<div class="paragraph">
<p>For more information see the <a href="http://www.mastercoin.org">Mastercoin website</a></p>
</div>
</div>
<div class="sect2">
<h3 id="_features">1.2. Features</h3>
<div class="ulist">
<ul>
<li>
<p>Decentralized Exchange</p>
<div class="paragraph">
<p>The capability to trade bitcoins for other digital currencies without having to use a third party. Master Protocol makes this possible by leveraging the Bitcoin blockchain as the "third party" and using Bitcoin’s distributed timestamping service.</p>
</div>
</li>
<li>
<p>Smart Poperty</p>
<div class="paragraph">
<p>Smart properties are digital property and contracts rights, which may be transferred. Smart tokens can represent services, products, titles, deeds, virtual currencies, and securities.</p>
</div>
<div class="paragraph">
<p>Mastercoin Foundation plans and funds the development of the Master Protocol for the creation of smart tokens, and is involved in fostering adoption by services meeting the needs of people, governments and businesses.</p>
</div>
</li>
<li>
<p>User Currencies</p>
<div class="paragraph">
<p>Master Protocol enabled applications will allow anyone to design and release their own smart tokens, with their own rules, without doing any software development.</p>
</div>
<div class="paragraph">
<p>Crowd Sale type virtual currencies and smart tokens will be available as of April 22, 2014.</p>
</div>
</li>
<li>
<p>Savings Wallets</p>
<div class="paragraph">
<p>A savings wallet is a collection of saving addresses. The Saving Address feature is designed to increase hot wallet security while preserving ease of use.</p>
</div>
<div class="paragraph">
<p>The transactions sent from those addresses are reversible for the specified time period.</p>
</div>
</li>
</ul>
</div>
</div>
<div class="sect2">
<h3 id="_history">1.3. History</h3>
<div class="dlist">
<dl>
<dt class="hdlist1">January 6, 2012</dt>
<dd>
<p><a href="http://www.mastercoinfoundation.org/#team">J. R. Willett</a> <a href="https://bitcointalk.org/index.php?topic=56901.0">publishes</a> Version 0.1 of <a href="https://sites.google.com/site/2ndbtcwpaper/2ndBitcoinWhitepaper.pdf">The Second Bitcoin Whitepaper</a>.</p>
</dd>
<dt class="hdlist1">August 1, 2013</dt>
<dd>
<p><a href="https://blockchain.info/address/1EXoDusjGwvnjZUyKkxZ4UHEf77z6A5S4P">Exodus Address</a> begins receiving Bitcoins.</p>
</dd>
<dt class="hdlist1">August 31, 2013</dt>
<dd>
<p>"Exodus Address" stops receiving Bitcoins. 63,162.4 MSC are generated and sent to those who sent Bitcoins to the Exodus address. 56,316.2 development MSC are also genereated for a total of 619,478.6 MSC created. Additional MSC will not be created.</p>
</dd>
<dt class="hdlist1">??</dt>
<dd>
<p>Major specification upgrade.</p>
</dd>
<dt class="hdlist1">??</dt>
<dd>
<p>Major software release.</p>
</dd>
<dt class="hdlist1">4/22/14</dt>
<dd>
<p>Maidsafe sale.</p>
</dd>
<dt class="hdlist1">NOTE</dt>
<dd>
<p>I want to have only 6-9 major milestones here to keep this short.</p>
</dd>
</dl>
</div>
<div class="paragraph">
<p>For more information see:</p>
</div>
<div class="ulist">
<ul>
<li>
<p><a href="http://wiki.mastercoin.org/index.php/Timeline">http://wiki.mastercoin.org/index.php/Timeline</a></p>
</li>
<li>
<p><a href="http://masterprotocoleducation.org/history-of-the-master-protocol/">http://masterprotocoleducation.org/history-of-the-master-protocol/</a></p>
</li>
<li>
<p><a href="http://blog.mastercoin.org/2013/11/29/a-brief-history-of-mastercoin/">http://blog.mastercoin.org/2013/11/29/a-brief-history-of-mastercoin/</a></p>
<div class="dlist">
<dl>
<dt class="hdlist1">NOTE</dt>
<dd>
<p>Which of the above 3 links should we keep?</p>
</dd>
</dl>
</div>
</li>
</ul>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_overview_of_ecosystem">2. Overview of Ecosystem</h2>
<div class="sectionbody">
<div class="paragraph">
<p>This section provides an overview of the Mastercoin ecosystem with links to the relevant resources.</p>
</div>
<div class="sect2">
<h3 id="_implementations">2.1. Implementations</h3>
<div class="paragraph">
<p>There are multiple implementations of the Master Protocol available. <a href="#imp-mastercoin-tools">Mastercoin Tools</a> is the current reference implementation (which is used by OmniWallet). We have begun work on a new reference implementation <a href="#imp-mastercore">Master Core</a>, but it has not been released yet.</p>
</div>
<div class="sect3">
<h4 id="imp-mastercoin-tools">2.1.1. Mastercoin Tools</h4>
<div class="paragraph">
<p><a href="https://github.com/grazcoin/mastercoin-tools">Mastercoin Tools</a> is a set of Python libraries and command-line tools that in turn depends upon the SX command from libbitcoin.</p>
</div>
<div class="paragraph">
<p>For more information see the <a href="https://github.com/grazcoin/mastercoin-tools">README on Github</a>.</p>
</div>
</div>
<div class="sect3">
<h4 id="imp-mastercore">2.1.2. Master Core</h4>
<div class="paragraph">
<p><a href="http://github.com/mastercoin-MSC/mastercore">Master Core</a> is the new reference implementation for Mastercoin and is available in experimental form.</p>
</div>
<div class="paragraph">
<p>Maste Core is based upon <a href="https://github.com/bitcoin/bitcoin">Bitcoin Core</a> — the reference implementation of Bitcoin. Mastercore adds support for the Master Protocol, while leaving the existing Bitcoin functionality unchanged.</p>
</div>
</div>
<div class="sect3">
<h4 id="_other">2.1.3. Other</h4>
<div class="paragraph">
<p>TBD</p>
</div>
</div>
</div>
<div class="sect2">
<h3 id="_notable_wallet_applications">2.2. Notable Wallet Applications</h3>
<div class="paragraph">
<p>There are a handful of Mastercoin-enabled wallets for web and desktop platforms. We’ll highlight a few of them here.</p>
</div>
<div class="sect3">
<h4 id="_omniwallet">2.2.1. Omniwallet</h4>
<div class="paragraph">
<p>Omniwallet is a major focus of development for the Mastercoin Foundation. You can find the <a href="https://github.com/mastercoin-MSC/omniwallet">https://github.com/mastercoin-MSC/omniwallet</a> [source code and a helpful README] file on Github.</p>
</div>
</div>
<div class="sect3">
<h4 id="_masterchest">2.2.2. Masterchest</h4>
<div class="paragraph">
<p>The Masterchest wallet is a desktop wallet for the Windows platform. See the <a href="https://github.com/zathras-crypto/masterchest-wallet">source and README</a> on Github,</p>
</div>
</div>
<div class="sect3">
<h4 id="_other_2">2.2.3. Other</h4>
<div class="paragraph">
<p>TBD</p>
</div>
</div>
</div>
<div class="sect2">
<h3 id="_notable_master_currencies">2.3. Notable Master currencies</h3>
<div class="sect3">
<h4 id="_mastercoin">2.3.1. Mastercoin</h4>
</div>
<div class="sect3">
<h4 id="_test_mastercoin">2.3.2. Test Mastercoin</h4>
</div>
<div class="sect3">
<h4 id="_maidsafecoin">2.3.3. MaidSafeCoin</h4>
</div>
<div class="sect3">
<h4 id="_other_3">2.3.4. Other</h4>
</div>
</div>
<div class="sect2">
<h3 id="_mastercoin_documentation_resources">2.4. Mastercoin Documentation & Resources</h3>
<div class="ulist">
<ul>
<li>
<p><a href="http://www.mastercoin.org">Mastercoin</a></p>
</li>
<li>
<p><a href="http://www.mastercoinfoundation.org">Mastercoin Foundation</a></p>
</li>
<li>
<p><a href="http://wiki.mastercoin.org/index.php/Main_Page">Mastercoin Dev Wiki</a></p>
</li>
<li>
<p><a href="http://masterprotocoleducation.org">Master Protocol Education</a></p>
</li>
</ul>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_introduction_to_the_master_protocol">3. Introduction to the Master Protocol</h2>
<div class="sectionbody">
<div class="paragraph">
<p>This section is TBD. For now your best starting point is the <a href="https://github.com/mastercoin-MSC/spec">Specification</a> itself.</p>
</div>
<div class="sect2">
<h3 id="_overview_of_key_mastercoin_concepts_and_terminology">3.1. Overview of key Mastercoin concepts and terminology</h3>
</div>
<div class="sect2">
<h3 id="_review_of_key_bitcoin_features_used_by_mastercoin">3.2. Review of key Bitcoin features used by Mastercoin</h3>
</div>
<div class="sect2">
<h3 id="_introduction_to_the_specification_and_overview_of_it_s_contents">3.3. Introduction to the Specification and overview of it’s contents</h3>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_getting_started">4. Getting Started</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The best way to get started is to build (install) and run one of our implementations.</p>
</div>
<div class="sect2">
<h3 id="_building_and_running_a_full_mastercoin_implementation">4.1. Building and running a full Mastercoin implementation</h3>
<div class="paragraph">
<p>We have produced <a href="http://www.vagrantup.com">Vagrant</a> configurations for automatically creating <a href="https://www.virtualbox.org">VirtualBox</a> Virtual Machines running recent versions of Mastercoin components and stable versions of prerequisite components.</p>
</div>
<div class="sect3">
<h4 id="_mastercoin_tools">4.1.1. Mastercoin-tools</h4>
<div class="paragraph">
<p>Follow the instructions in <a href="https://github.com/mastercoin-MSC/install-msc/blob/vagrant/README-Vagrant.md#installing-mastercoin-tools">Installing Mastercoin Tools</a> on the <code>install-msc</code> repo. (In the <code>vagrant</code> branch for now.)</p>
</div>
</div>
<div class="sect3">
<h4 id="_mastercore_aka_mastercoind">4.1.2. Mastercore (aka mastercoind)</h4>
<div class="paragraph">
<p>Follow the instructions in <a href="https://github.com/mastercoin-MSC/install-msc/blob/vagrant/README-Vagrant.md#installing-mastercore">Installing Mastercore</a> on the <code>install-msc</code> repo. (In the <code>vagrant</code> branch for now.)</p>
</div>
</div>
<div class="sect3">
<h4 id="_omniwallet_2">4.1.3. Omniwallet</h4>
<div class="paragraph">
<p>TBD.</p>
</div>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_mastercoin_rpc_api">5. Mastercoin RPC API</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The Mastercore implementation of Mastercoin includes an <a href="http://www.jsonrpc.org">JSON-RPC</a> API that allows access to key Mastercoin features over the HTTP(S) protocol. As Mastercore is based upon Bitcoin Core, the Mastercoin JSON-RPC API will be a superset of the API provided by Bitcoin.</p>
</div>
<div class="paragraph">
<p>The Bitcoin RPC API is documented in the <a href="https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list">Bitcoin API Calls List</a>. This section documents the additional commands planned for addition by Mastercoin.</p>
</div>
<div class="paragraph">
<p>The <a href="https://github.com/mastercoin-MSC/mastercore/blob/mscore-0.0.8/doc/apidocumentation.md">Master Core RPC API Documentation</a> is available on Github.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_contributing_to_mastercoin">6. Contributing to Mastercoin</h2>
<div class="sectionbody">
<div class="paragraph">
<p>This section contains procedures and guidelines for contributing to Mastercoin. More sections will be added as they are created.</p>
</div>
<div class="sect2">
<h3 id="_using_gpg_keys_for_git_commits">6.1. Using GPG keys for Git Commits</h3>
<div class="paragraph">
<p>Siging your commits with PGP/GPG is recommended to help ensure your code is trusted when commiting upstream to the Mastercoin repository. To setup
your key, you will need a copy of GPG for your OS: <a href="https://www.gnupg.org/">https://www.gnupg.org/</a></p>
</div>
<div class="dlist">
<dl>
<dt class="hdlist1">Installation, key creation, and publishing</dt>
<dd>
<p>See the instructions for your Operating System below.</p>
</dd>
<dt class="hdlist1">Contact a developer</dt>
<dd>
<p>Contact another Mastercoin developer and have him or her verify the integrity of your key, so that we can include you in the Mastercoin web of trust.</p>
</dd>
<dt class="hdlist1">Committing code</dt>
<dd>
<p>Add your key to your git config with <code>git config --global user.signingkey key_identifier</code>
Sign future commits with <code>git -S -m "(message)"</code></p>
<div class="paragraph">
<p>If you’re using a Git GUI, see the instructions for your particular software for GPG signing.</p>
</div>
</dd>
</dl>
</div>
<div class="sect3">
<h4 id="_linux">6.1.1. Linux</h4>
<div class="paragraph">
<p>To setup your key, you will need a copy of GPG for your OS: <a href="https://www.gnupg.org/">https://www.gnupg.org/</a></p>
</div>
<div class="dlist">
<dl>
<dt class="hdlist1">Listing keys</dt>
<dd>
<p><code>gpg -k</code> or <code>gpg --list-keys</code> will list all keys on your system.</p>
</dd>
<dt class="hdlist1">Installation</dt>
<dd>
<p>After downloading and installing, run: <code>gpg --gen-key</code> and follow the prompts to generate your key.</p>
</dd>
<dt class="hdlist1">Uploading your key to a keyserver</dt>
<dd>
<p><code>gpg --send-keys (key identifier)</code> note: the identifier is a 4-byte hex value ex. "0xDEADBEEF"</p>
</dd>
</dl>
</div>
</div>
<div class="sect3">
<h4 id="_mac">6.1.2. Mac</h4>
<div class="dlist">
<dl>
<dt class="hdlist1">Recommeded Tools</dt>
<dd>
<div class="ulist">
<ul>
<li>
<p><a href="https://gpgtools.org">GPG Suite</a>, which includes:</p>
<div class="ulist">
<ul>
<li>
<p>MacGPG (command line tools)</p>
</li>
<li>
<p>GPG Keychain</p>
</li>
<li>
<p>GPG Services</p>
</li>
<li>
<p>GPG for Mail (plugin for Apple Mail)</p>
</li>
</ul>
</div>
</li>
<li>
<p><a href="https://www.enigmail.net">Enigmail</a> (optional, if you’re using Mozilla Thunderbird)</p>
</li>
</ul>
</div>
</dd>
<dt class="hdlist1">Installation and Setup</dt>
<dd>
<div class="ulist">
<ul>
<li>
<p>Download and run the GPG Suite Installer</p>
</li>
<li>
<p>Create a key pair and publish your public key</p>
<div class="ulist">
<ul>
<li>
<p>Open <strong>GPG Keychain Access</strong></p>
</li>
<li>
<p>Click the <strong>New</strong> key icon to create a new key pair.</p>
</li>
<li>
<p>Enter your name and email address</p>
</li>
<li>
<p>Check <strong>Upload public key after generation</strong></p>
</li>
</ul>
</div>
</li>
</ul>
</div>
</dd>
<dt class="hdlist1">Importing keys</dt>
<dd>
<div class="ulist">
<ul>
<li>
<p>Get the new developer’s Key ID via a trusted communications channel</p>
</li>
<li>
<p>Use the <strong>Key</strong> / <strong>Retrieve from Keyserver…" menu in *GPG Keychain Access</strong></p>
</li>
<li>
<p>Enter the Key ID and click <strong>Retrieve Key</strong></p>
</li>
</ul>
</div>
</dd>
<dt class="hdlist1">Signing keys</dt>
<dd>
<div class="ulist">
<ul>
<li>
<p>Select the key you want to sign in the <strong>GPG Keychain Access</strong> window</p>
</li>
<li>
<p>Choose the <strong>Key</strong> / *Sign…" menu</p>
</li>
<li>
<p>Indicate how carefully you have verified the key from the pop-up menu.</p>
</li>
<li>
<p>Click <strong>Generate Signature</strong></p>
</li>
<li>
<p>Choose the *Send public key to Keyserver"</p>
</li>
</ul>
</div>
</dd>
</dl>
</div>
</div>
<div class="sect3">
<h4 id="_windows">6.1.3. Windows</h4>
<div class="paragraph">
<p>To setup your key, you will need a copy of GPG for your OS: <a href="https://www.gpg4win.org">https://www.gpg4win.org</a></p>
</div>
<div class="dlist">
<dl>
<dt class="hdlist1">Downloading</dt>
<dd>
<p>Visit <a href="https://www.gpg4win.org/download.html">https://www.gpg4win.org/download.html</a> and grab a copy of GPG4Win (22meg).</p>
</dd>
<dt class="hdlist1">Note</dt>
<dd>
<p>You may see an [SSL certificate problem](<a href="https://imgur.com/exdQ6nP">https://imgur.com/exdQ6nP</a>) when downloading <strong>gpg4win</strong> (TBD: provide method to fix that or grab a secure copy)</p>
</dd>
<dt class="hdlist1">Installing</dt>
<dd>
<div class="ulist">
<ul>
<li>
<p>Make sure GPA is selected (Kleopatra not necessary) at a minimum, and proceed.</p>
<div class="ulist">
<ul>
<li>
<p><span class="image"><img src="images/Selection_142.png" alt="Selection_142"></span></p>
</li>
</ul>
</div>
</li>
<li>
<p>More installation default suggestions.</p>
<div class="ulist">
<ul>
<li>
<p><span class="image"><img src="images/Selection_143.png" alt="Selection_143"></span></p>
</li>
</ul>
</div>
</li>
<li>
<p>Hit finish to complete</p>
<div class="ulist">
<ul>
<li>
<p><span class="image"><img src="images/Selection_144.png" alt="Selection_144"></span></p>
</li>
</ul>
</div>
</li>
</ul>
</div>
</dd>
<dt class="hdlist1">Using GPA</dt>
<dd>
<div class="ulist">
<ul>
<li>
<p>This is the GPA icon</p>
<div class="ulist">
<ul>
<li>
<p><span class="image"><img src="images/Selection_145.png" alt="Selection_145"></span></p>
</li>
</ul>
</div>
</li>
<li>
<p>Hit generate key now</p>
<div class="ulist">
<ul>
<li>
<p><span class="image"><img src="images/Selection_146.png" alt="Selection_146"></span></p>
</li>
</ul>
</div>
</li>
<li>
<p>Insert your personal details</p>