A description of known problems in Satoshi Nakamoto's paper, "Bitcoin: A Peer-to-Peer Electronic Cash System", as well as notes on terminology changes and how Bitcoin's implementation differs from that described in the paper.
The longest chain not only serves as proof of the sequence of events witnessed, but proof that it came from the largest pool of CPU power.
| class ParentComponent extends Component { | |
| constructor() { | |
| super(); | |
| this.state = { | |
| data : [ | |
| {id : 1, date : "2014-04-18", total : 121.0, status : "Shipped", name : "A", points: 5, percent : 50}, | |
| {id : 2, date : "2014-04-21", total : 121.0, status : "Not Shipped", name : "B", points: 10, percent: 60}, | |
| {id : 3, date : "2014-08-09", total : 121.0, status : "Not Shipped", name : "C", points: 15, percent: 70}, | |
| {id : 4, date : "2014-04-24", total : 121.0, status : "Shipped", name : "D", points: 20, percent : 80}, |
| #!/bin/bash -x | |
| find . -name 'fbjs' -print | grep "\./node_modules/fbjs" -v | xargs rm -rf |
| # Install QEMU OSX port with ARM support | |
| sudo port install qemu +target_arm | |
| export QEMU=$(which qemu-system-arm) | |
| # Dowload kernel and export location | |
| curl -OL \ | |
| https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/kernel-qemu-4.1.7-jessie | |
| export RPI_KERNEL=./kernel-qemu-4.1.7-jessie | |
| # Download filesystem and export location |
Short version: I strongly do not recommend using any of these providers. You are, of course, free to use whatever you like. My TL;DR advice: Roll your own and use Algo or Streisand. For messaging & voice, use Signal. For increased anonymity, use Tor for desktop (though recognize that doing so may actually put you at greater risk), and Onion Browser for mobile.
This mini-rant came on the heels of an interesting twitter discussion: https://twitter.com/kennwhite/status/591074055018582016
Exporting password + one-time code data from iCloud Keychain is now officially supported in macOS Monterey and Safari 15 (for Monterey, Big Sur, and Catalina). You can access it in the Password Manager’s “gear” icon (System Preferences > Passwords on Monterey, and Safari > Passwords everywhere else), or via the File > Export > Passwords... menu item). You shouldn't need to hack up your own exporter anymore.
After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.
| // | |
| // ViewController.m | |
| // AVPlayerCaching | |
| // | |
| // Created by Anurag Mishra on 5/19/14. | |
| // Sample code to demonstrate how to cache a remote audio file while streaming it with AVPlayer | |
| // | |
| #import "ViewController.h" | |
| #import <AVFoundation/AVFoundation.h> |
I will maybe someday get around to dusting off my C and making these changes myself unless someone else does it first.
Imagine a long-running development branch periodically merges from master. The
git log --graph --all --topo-order is not as simple as it could be, as of git version 1.7.10.4.
It doesn't seem like a big deal in this example, but when you're trying to follow the history trails in ASCII and you've got several different branches displayed at once, it gets difficult quickly.
create different ssh key according the article Mac Set-Up Git
$ ssh-keygen -t rsa -C "your_email@youremail.com"