chris-belcher

Design for a CoinSwap Implementation for Massively Improving Bitcoin Privacy and Fungibility

25/5/2020

Abstract

Imagine a future where a user Alice has bitcoins and wants to send them with maximal privacy, so she creates a special kind of transaction. For anyone looking at the blockchain her transaction appears completely normal with her coins seemingly going from address A to address B. But in reality her coins end up in address Z which is entirely unconnected to either A or B.

Now imagine another user, Carol, who isn't too bothered by privacy and sends her bitcoin using a regular wallet which exists today. But because Carol's transaction looks exactly the same as Alice's, anybody analyzing the blockchain must now deal with the possibility that Carol's transaction actually sent her coins to a totally unconnected address. So Carol's privacy is improved even though she didn't change her behaviour, and perhaps had never even heard of this software.

iammerrick

import React from 'react';

const MIN_SCALE = 1;
const MAX_SCALE = 4;
const SETTLE_RANGE = 0.001;
const ADDITIONAL_LIMIT = 0.2;
const DOUBLE_TAP_THRESHOLD = 300;
const ANIMATION_SPEED = 0.04;
const RESET_ANIMATION_SPEED = 0.08;
const INITIAL_X = 0;

davidjguru

Render custom blocks

$bid = 'myblock';
$block = \Drupal\block_content\Entity\BlockContent::load($bid);
$render = \Drupal::entityTypeManager()->getViewBuilder('block_content')->view($block);

Render plugin blocks

$block_manager = \Drupal::service('plugin.manager.block');

gnarf

Install

Either copy the aliases from the .gitconfig or run the commands in add-pr-alias.sh

Usage

Easily checkout local copies of pull requests from remotes:

• git pr 4 - creates local branch pr/4 from the github upstream(if it exists) or origin remote and checks it out
• git pr 4 someremote - creates local branch pr/4 from someremote remote and checks it out

kac-

package main

import (
	"crypto/ecdsa"
	"crypto/elliptic"
	"crypto/sha256"
	"fmt"
	"math/big"
)

QuentinFonteneau

  $imageStyle = \Drupal::entityTypeManager()->getStorage('image_style');
  $styles = $imageStyle->loadMultiple();
  foreach ($styles as $style) {
    $imageStyle->load($style->get('name'))->flush();
  }

tnakagawa

Scriptless Script for DLC

Scriptless Script

Assumptions

pk_script
<witness version 0x0X> <public key / EC point : P >

quentinlesceller

	v3.0.0	v3.1.0	v3.1.1	master
v3.0.0			Y
v3.1.0			X
v3.1.1			X
master	X	X	X	X

davecgh

package main

import (
	"encoding/hex"
	"fmt"

	"github.com/btcsuite/btcd/btcec"
	"github.com/btcsuite/btcd/chaincfg"
	"github.com/btcsuite/btcd/txscript"
	"github.com/btcsuite/btcd/wire"

johnyzed

import jenkins.*

import jenkins.model.*

import hudson.*

import hudson.model.*


nodes = Jenkins.getInstance().getGlobalNodeProperties()