This commit is contained in:
waalge 2024-12-22 16:13:09 +00:00
commit 3217c1a4ed
16 changed files with 546 additions and 0 deletions

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.envrc Normal file
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use flake

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.gitignore vendored Normal file
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.direnv/

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README.md Normal file
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# Sudoku snark : intro

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flake.lock Normal file
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{
"nodes": {
"flake-parts": {
"inputs": {
"nixpkgs-lib": "nixpkgs-lib"
},
"locked": {
"lastModified": 1733312601,
"narHash": "sha256-4pDvzqnegAfRkPwO3wmwBhVi/Sye1mzps0zHWYnP88c=",
"owner": "hercules-ci",
"repo": "flake-parts",
"rev": "205b12d8b7cd4802fbcb8e8ef6a0f1408781a4f9",
"type": "github"
},
"original": {
"owner": "hercules-ci",
"repo": "flake-parts",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1734424634,
"narHash": "sha256-cHar1vqHOOyC7f1+tVycPoWTfKIaqkoe1Q6TnKzuti4=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "d3c42f187194c26d9f0309a8ecc469d6c878ce33",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"nixpkgs-lib": {
"locked": {
"lastModified": 1733096140,
"narHash": "sha256-1qRH7uAUsyQI7R1Uwl4T+XvdNv778H0Nb5njNrqvylY=",
"type": "tarball",
"url": "https://github.com/NixOS/nixpkgs/archive/5487e69da40cbd611ab2cadee0b4637225f7cfae.tar.gz"
},
"original": {
"type": "tarball",
"url": "https://github.com/NixOS/nixpkgs/archive/5487e69da40cbd611ab2cadee0b4637225f7cfae.tar.gz"
}
},
"root": {
"inputs": {
"flake-parts": "flake-parts",
"nixpkgs": "nixpkgs"
}
}
},
"root": "root",
"version": 7
}

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flake.nix Normal file
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{
description = "CL Pitch";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
flake-parts.url = "github:hercules-ci/flake-parts";
};
outputs = inputs @ {flake-parts, ...}:
flake-parts.lib.mkFlake {inherit inputs;}
{
imports = [
];
systems = ["x86_64-linux" "aarch64-darwin"];
perSystem = {
config,
self',
inputs',
pkgs,
system,
...
}:
{
devShells.default = let
build = pkgs.writeShellScriptBin "build"
''
pandoc -t revealjs \
--from markdown+yaml_metadata_block+link_attributes \
-H src/header.html \
-o public/index.html \
-s \
src/index.md
'';
serve = pkgs.writeShellScriptBin "serve"
''
caddy file-server --listen :7777 --root ./public
'';
deploy = pkgs.writeShellScriptBin "deploy"
''
echo "no yet implemented"
exit 1
'';
in pkgs.mkShell {
shellHook = ''
echo 1>&2 "Welcome to the development shell!"
'';
name = "glossary-devshell";
packages = [
pkgs.pandoc
pkgs.caddy
build
serve
deploy
];
};
};
flake = {};
};
}

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<svg width="10000" height="10000" version="1.1" xmlns="http://www.w3.org/2000/svg">
<defs>
<radialGradient id="G1" cx="50%" cy="50%" r="50%" fx="50%" fy="50%">
<stop offset="0%" style="stop-color:#004455; stop-opacity:.8" />
<stop offset="100%" style="stop-color:#030303; stop-opacity:0" />
</radialGradient >
</defs>
<ellipse
cx="100"
cy="120"
rx="1500"
ry="1500"
fill="url(#G1)" />
<ellipse
cx="1000"
cy="1200"
rx="1500"
ry="1000"
fill="url(#G1)" />
<ellipse
cx="2200"
cy="1600"
rx="1000"
ry="1200"
fill="url(#G1)" />
</svg>

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="generator" content="pandoc">
<title>Cardano Lightning</title>
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
<link rel="stylesheet" href="https://unpkg.com/reveal.js@^4//dist/reset.css">
<link rel="stylesheet" href="https://unpkg.com/reveal.js@^4//dist/reveal.css">
<style>
.reveal .sourceCode { /* see #7635 */
overflow: visible;
}
code{white-space: pre-wrap;}
span.smallcaps{font-variant: small-caps;}
div.columns{display: flex; gap: min(4vw, 1.5em);}
div.column{flex: auto; overflow-x: auto;}
div.hanging-indent{margin-left: 1.5em; text-indent: -1.5em;}
/* The extra [class] is a hack that increases specificity enough to
override a similar rule in reveal.js */
ul.task-list[class]{list-style: none;}
ul.task-list li input[type="checkbox"] {
font-size: inherit;
width: 0.8em;
margin: 0 0.8em 0.2em -1.6em;
vertical-align: middle;
}
.display.math{display: block; text-align: center; margin: 0.5rem auto;}
</style>
<link rel="stylesheet" href="https://unpkg.com/reveal.js@^4//dist/theme/black.css" id="theme">
<style>
.reveal, .reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6
{
font-family:"jetbrains-mono", "Times New Roman", Times;
}
@font-face{
font-family:jetbrains-mono;src:local("TruenoSemiBold"),
url("./fonts/TruenoSemiBold.woff2") format("woff2");
}
.black h2 {
background-color: #020210;
}
.reveal ul {
list-style-type: " ";
}
.reveal .slides p {
margin: 2rem 0;
text-align:left;
}
.reveal .slides blockquote > p {
text-align:center;
}
</style>
</head>
<body>
<div class="reveal">
<div class="slides">
<section id="title-slide" data-background-image="./assets/logo.png" data-background-opacity="0.3" data-background-size="contain">
<h1 class="title">Cardano Lightning</h1>
<p class="subtitle">xxx</p>
</section>
<section>
<section id="the-problem" class="title-slide slide level2">
<h2>The Problem</h2>
</section>
<section id="payment-system" class="slide level3">
<h3>Payment system</h3>
<ol type="1">
<li>Permissionless</li>
<li>Near instant</li>
<li>Highly scalable</li>
</ol>
</section></section>
</div>
</div>
<script src="https://unpkg.com/reveal.js@^4//dist/reveal.js"></script>
<!-- reveal.js plugins -->
<script src="https://unpkg.com/reveal.js@^4//plugin/notes/notes.js"></script>
<script src="https://unpkg.com/reveal.js@^4//plugin/search/search.js"></script>
<script src="https://unpkg.com/reveal.js@^4//plugin/zoom/zoom.js"></script>
<script>
// Full list of configuration options available at:
// https://revealjs.com/config/
Reveal.initialize({
// Display controls in the bottom right corner
controls: true,
// Help the user learn the controls by providing hints, for example by
// bouncing the down arrow when they first encounter a vertical slide
controlsTutorial: true,
// Determines where controls appear, "edges" or "bottom-right"
controlsLayout: 'bottom-right',
// Visibility rule for backwards navigation arrows; "faded", "hidden"
// or "visible"
controlsBackArrows: 'faded',
// Display a presentation progress bar
progress: true,
// Display the page number of the current slide
slideNumber: false,
// 'all', 'print', or 'speaker'
showSlideNumber: 'all',
// Add the current slide number to the URL hash so that reloading the
// page/copying the URL will return you to the same slide
hash: true,
// Start with 1 for the hash rather than 0
hashOneBasedIndex: false,
// Flags if we should monitor the hash and change slides accordingly
respondToHashChanges: true,
// Push each slide change to the browser history
history: false,
// Enable keyboard shortcuts for navigation
keyboard: true,
// Enable the slide overview mode
overview: true,
// Disables the default reveal.js slide layout (scaling and centering)
// so that you can use custom CSS layout
disableLayout: false,
// Vertical centering of slides
center: true,
// Enables touch navigation on devices with touch input
touch: true,
// Loop the presentation
loop: false,
// Change the presentation direction to be RTL
rtl: false,
// see https://revealjs.com/vertical-slides/#navigation-mode
navigationMode: 'default',
// Randomizes the order of slides each time the presentation loads
shuffle: false,
// Turns fragments on and off globally
fragments: true,
// Flags whether to include the current fragment in the URL,
// so that reloading brings you to the same fragment position
fragmentInURL: true,
// Flags if the presentation is running in an embedded mode,
// i.e. contained within a limited portion of the screen
embedded: false,
// Flags if we should show a help overlay when the questionmark
// key is pressed
help: true,
// Flags if it should be possible to pause the presentation (blackout)
pause: true,
// Flags if speaker notes should be visible to all viewers
showNotes: false,
// Global override for autoplaying embedded media (null/true/false)
autoPlayMedia: null,
// Global override for preloading lazy-loaded iframes (null/true/false)
preloadIframes: null,
// Number of milliseconds between automatically proceeding to the
// next slide, disabled when set to 0, this value can be overwritten
// by using a data-autoslide attribute on your slides
autoSlide: 0,
// Stop auto-sliding after user input
autoSlideStoppable: true,
// Use this method for navigation when auto-sliding
autoSlideMethod: null,
// Specify the average time in seconds that you think you will spend
// presenting each slide. This is used to show a pacing timer in the
// speaker view
defaultTiming: null,
// Enable slide navigation via mouse wheel
mouseWheel: false,
// The display mode that will be used to show slides
display: 'block',
// Hide cursor if inactive
hideInactiveCursor: true,
// Time before the cursor is hidden (in ms)
hideCursorTime: 5000,
// Opens links in an iframe preview overlay
previewLinks: false,
// Transition style (none/fade/slide/convex/concave/zoom)
transition: 'slide',
// Transition speed (default/fast/slow)
transitionSpeed: 'default',
// Transition style for full page slide backgrounds
// (none/fade/slide/convex/concave/zoom)
backgroundTransition: 'fade',
// Number of slides away from the current that are visible
viewDistance: 3,
// Number of slides away from the current that are visible on mobile
// devices. It is advisable to set this to a lower number than
// viewDistance in order to save resources.
mobileViewDistance: 2,
// Parallax background image
parallaxBackgroundImage: './assets/background.svg', // e.g. "'https://s3.amazonaws.com/hakim-static/reveal-js/reveal-parallax-1.jpg'"
// reveal.js plugins
plugins: [
RevealNotes,
RevealSearch,
RevealZoom
]
});
</script>
</body>
</html>

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<style>
.reveal, .reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6
{
font-family:"jetbrains-mono", "Times New Roman", Times;
}
@font-face{
font-family:jetbrains-mono;src:local("TruenoSemiBold"),
url("./fonts/TruenoSemiBold.woff2") format("woff2");
}
.black h2 {
background-color: #020210;
}
.reveal ul {
list-style-type: " ";
}
.reveal .slides p {
margin: 2rem 0;
text-align:left;
}
.reveal .slides blockquote > p {
text-align:center;
}
</style>

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---
title: Cardano Lightning
subtitle: Permissionless, near instant, highly scalable
mainfont: TruenoSemiBold
background-image: ./assets/background.svg
background-opacity: "0.35"
title-slide-attributes:
data-background-image: ./assets/logo.png
data-background-size: contain
data-background-opacity: "0.3"
background-image: ./assets/background.svg
background-opacity: "0.35"
---
## The Problem
### Payments
A fundamental part of commerce: payment.
There are three parties
- Consumer (ie payer)
- Provider (ie payee)
- Facilitator
These types of users require different functionality.
Important features:
- Security
- Speed
- Cost
> People want secure, fast, low cost transactions
### Existing systems
- Cash: Permissionless, instant, scalable-ish (lots of people can use it at the same time, but only to pay people near them),
questionable security (fraud happens).
- Bank transfer: Permissioned, some instant others very slow, scalable.
- Contactless/ Card: Permissioned, near instant, scalable
- Decentralised Ledger \*: permissionless, maybe fast or scalable but generally not both.
\* : There are many different designs of decentralised ledger,
each with different choices and trade-offs.
Some permissioned, some more decentralised than others, some faster, _etc_.
### Market size
Near instant payments
> Contactless transactions will reach $11 trillion by 2027
source : Juniper Research
Permissionless systems:
> Market Cap for crypto : > $3 trillion
source : coinmarketcap.com (Dec 2024)
### Permissionless Payment system
Can we have contactless like experience but Permissionless?
1. Secure Permissionless
2. Near instant
3. Highly scalable
### Nearest solution: Bitcoin Lightning
Closest to meeting the aims. In a lightning network:
- The network is fundamentally a set of channels, not a shared ledger.
- There is no need to reach consensus, or globally broadcasting state.
- Payments are routed across channels by participants.
- Speed of payment isn't a global property, but a more local one.
### BLN problems
However it has some issues:
- Large technical and resource overhead to use. Every user must run a node.
- Difficult to efficiently manage capital.
Liquidity is required to enable payments to be routed across a network.
Moving capital between channels requires multiple transactions.
## The Solution: Cardano Lightning
### Design
- A perturbation on BLN: its a Lightning Network
- Focused on addressing the key technical blockers
to it being used as a day-to-day payment system.
### Tailored Nodes
CL recognises a diversity in user needs.
- Consumers want a super lightweight node, minimal resources, runs on their phone.
- Some businesses might be happy running their own servers, others wont.
The do need to integrate payments into their existing business operations.
- Those with capital and wanting to put it to use can setup as network routers.
They receive income on the service they provide, each payment they facilitate in routing.
## Team
###
- @waalge
- @paluh
- @nhenin

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@font-face{
font-family: 'sans-serif';
src:
url('./fonts/TruenoSemiBold.woff2') format('woff2'),
url('./fonts/TruenoSemiBold.woff') format('woff'),
url('./fonts/TruenoSemiBold.ttf') format('ttf');
font-weight: 400;
font-style: normal;
}