Leo Dutra leodutra

Today (April 16th 2019 at noon) the first major clues to discover key #1 was set to be released in a few cities. A QR code with the words 'orbital' were found at these locations and looked like this: (https://imgur.com/a/6rNmz7T). If you read the QR code with your phone you will be directed to this url: https://satoshistreasure.xyz/k1

At this URL you are prompted to input a passphrase to decrypt the first shard. An obvious first guess was to try the word 'orbital' from the QR code. Not suprisingly this worked! This reveals a congratulations page and presents the first key shard:

ST-0001-a36e904f9431ff6b18079881a20af2b3403b86b4a6bace5f3a6a47e945b95cce937c415bedaad6c86bb86b59f0b1d137442537a8.

Now, we were supposed to wait until April 17th to get clues from the other cities for keys #2 and #3 but that wouldn't stop me from digging around with all the new information we had. All that time "playing" notpron (http://notpron.org/notpron/) years ago was going to help me here.

The first thing I noticed was

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

Problem

In Arch Linux mkinitcpio -p linux

shows

Possibly missing firmware for module: aic94xx
 Possibly missing firmware for module: wd719x

First step: Install Android SDK

yaourt -S android-sdk android-sdk-platform-tools android-sdk-build-tools
Note: Maybe you'll have problems with the lasta package: ncurses5-compat-libs. In order to avoid this problem you have to use this command: gpg --recv-keys F7E48EDB. You can find clarification (here)[https://aur.archlinux.org/packages/ncurses5-compat-libs/?comments=all].
yaourt -S genymotion
Note: You'll need install virtual-box and his modules, yaourt will make for you but you need choos between ArchLinux host modules or DKMS host modules.
echo -e "vboxdrv\nvboxnetflt\nvboxnetadp\nvboxpci" > /etc/modules-load.d/virtualbox.conf
Note: You need do this with super user because need super user permissions and with sudo, for us at least, doesn't work.
sudo modprobe vboxdrv vboxnetadp vboxnetflt
Activate for current session.
sudo chmod -R 777 /opt/android-sdk

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	const puppeteer = require('puppeteer')

	// Related Issues:
	// 3118 - https://github.com/GoogleChrome/puppeteer/issues/3118#issuecomment-417754246

	async function main() {
	const browser = await puppeteer.launch({
	args: ['--start-maximized'],
	headless: false,
	defaultViewport: null

	function dedent(callSite, ...args) {

	function format(str) {

	let size = -1;

	return str.replace(/\n(\s+)/g, (m, m1) => {

	if (size < 0)
	size = m1.replace(/\t/g, " ").length;

	module.exports = {
	config: {
	// default font size in pixels for all tabs
	fontSize: 12,

	// font family with optional fallbacks
	fontFamily: 'Menlo, "DejaVu Sans Mono", Consolas, "Lucida Console", monospace',

	// terminal cursor background color and opacity (hex, rgb, hsl, hsv, hwb or cmyk)
	cursorColor: 'rgba(248,28,229,0.8)',

	<View style={{ justifyContent: 'center', alignItems: 'center', flexDirection: 'row', flex: 1}}>
	<View>
	<Text>Left</Text>
	</View>
	<View>
	<Text>Right</Text>
	</View>
	</View>

	// === Arrays

	var [a, b] = [1, 2];
	console.log(a, b);
	//=> 1 2


	// Use from functions, only select from pattern
	var foo = () => [1, 2, 3];