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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>BitScript Presentation</title>
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/theme/bitjson.css">
<!-- Theme used for syntax highlighting of code -->
<link rel="stylesheet" href="lib/css/zenburn.css">
<!-- Printing and PDF exports -->
<script>
var link = document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match(/print-pdf/gi) ? 'css/print/pdf.css' : 'css/print/paper.css';
document.getElementsByTagName('head')[0].appendChild(link);
</script>
</head>
<body>
<div class="reveal">
<div class="slides">
<section>
<h3>BitScript</h3>
<p>-</p>
<p>Distributed: Markets Blockchain Hackathon</p>
<p><code><a href="https://bitscript-slides.herokuapp.com/">bitscript-slides.herokuapp.com</a></code></p>
</section>
<section>
<h2>Hackathon Project</h2>
<br>
<ul>
<li class="fragment">Bitcoin Script editor. (Angular & Ionic)</li>
<br>
<li class="fragment">Stateless, purely-functional, bitcoin script evaluation engine. (Typescript)</li>
</ul>
</section>
<section data-transition="zoom-in slide-out">
<h3>Bitcoin Blockchain</h3>
<p>worldwide, perfectly-consistent database of identities</p>
<br>
<h3>Bitcoin Script</h3>
<p>universally-bug-for-bug-compatible scripting language</p>
</section>
<!-- <section>
<h2>Bitcoin Script-based Authentications</h2>
<ul>
<li>password-less, phishing-proof, and multi-signature login</li>
<li>100% verifiable software signing</li>
<li>distributed systems key revocation and migration</li>
</ul>
</section> -->
<section>
<h2>On-chain Identities</h2>
<ul>
<li>decentralized DNS and PKI</li>
<li>paid seeding systems (BitTorrent, Tor nodes, bitcoin nodes, etc.)</li>
<li>universal, cross-system identity</li>
<li>smart contracts</li>
</ul>
<aside class="notes">
This is something that was nearly impossible to coordinate around the world, until a consensus could be made around a authentication scripting language.
</aside>
</section>
<!--
<section>
<h4>Why Scriptable Authentication?</h4>
<ul>
<li>Aligning of security incentives</li>
<li>Improved user experience by moving authentication to the (more competitive) consumer sphere</li>
<li>Simplify development requirements for services</li>
<li>Fewer systems, fewer attack surfaces</li>
</ul>
</section> -->
<!-- <section>
<h4>User-friendly, secure, software signatures</h4>
<br>
<div class="fragment">
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<aside class="notes">
</aside>
</section> -->
<!-- <section>
<h4>Phishing-proof login</h4>
<div class="fragment">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:a="http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/" x="0px" y="0px" viewBox="0 0 349.7 202.5" style="enable-background:new 0 0 349.7 202.5;" xml:space="preserve">
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<g>
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</svg>
</div>
</section>
<section>
<h4>Phishing-proof, multifactor login – no resets</h4>
<div class="fragment">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:a="http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/" x="0px" y="0px" viewBox="0 0 412.1 177.8" style="enable-background:new 0 0 412.1 177.8;" xml:space="preserve">
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<g>
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</svg>
</div>
</section> -->
<section data-transition="zoom-in slide-out">
<h1>24 hours</h1><br>
<h3>~5,000 lines</h3>
<h3>No 3rd party/API dependencies</h3>
</section>
<!-- <section>
<h4>Application Update Signing (Android, iOS)</h4>
<p>
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xml:space="preserve">
<style type="text/css">
.img1a {
fill: #9FBF3B;
}
.img1b {
fill: #FFFFFF;
}
</style>
<defs>
</defs>
<g id="androd_1_">
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</svg>
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.img2a {
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<defs>
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</svg>
</p>
<div class="fragment">
<p>What happens when a signer leaves the company?</p>
</div>
<aside class="notes">
</aside>
</section> -->
<!-- <section>
<h2>Hackathon Project</h2>
<br>
<ul>
<li class="fragment">Stateless bitcoin script evaluation engine. (Typescript)</li>
<br>
<li class="fragment">Bitcoin Script editor. (Angular & Ionic)</li>
</ul>
</section> -->
<section>
<h3>Stateless Script Evaluation Engine</h3>
<pre><code class="hljs">
import { execute, OpCode } from 'bitcoin-script'
const step = execute({
blockHeight: 0, blockTime: 0, nLockTime: 0,
nSequence: 0, stack: [], altStack: [], programCounter: 0,
serializedScript: new Uint8Array([
OpCode.OP_2,
OpCode.OP_3,
OpCode.OP_ADD
])})
step.next(); step.next(); step.next();
</code></pre>
</section>
<section>
<h2>Bitcoin Script editor</h2>
</section>
<section>
<img src="https://cloud.githubusercontent.com/assets/904007/23341026/7a561e0a-fc0e-11e6-88ed-531e74c0b109.png" height="650">
</section>
<section>
<img src="https://cloud.githubusercontent.com/assets/904007/23341027/7b973dee-fc0e-11e6-839e-4c433fb33acd.png" height="650">
</section>
<section>
<h2>Get Involved</h2><br>
<h4><code><a href="https://github.com/bitauth/bitauth2017">github.com/bitscript/bitscript</a></code></h4>
<p>(to the moon)</p>
<br>
<p><code><a href="https://bitscript-slides.herokuapp.com/">bitscript-slides.herokuapp.com</a></code></p>
</section>
</div>
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