chjj

(module
 (type $0 (func (param i32 i32)))
 (type $1 (func (param i32 i32 i32 i32 i32 i32) (result i32)))
 (type $2 (func (param i32)))
 (type $3 (func (result i32)))
 (type $4 (func (param i32 i32 i32 i32) (result i32)))
 (type $5 (func (param i32 i32 i32) (result i32)))
 (type $6 (func))
 (type $7 (func (param i32) (result i32)))
 (type $8 (func (param i32 i32 i32)))

chjj

// Fast inverse square root in javascript
// https://en.wikipedia.org/wiki/Fast_inverse_square_root#Overview_of_the_code

// Example:
// > 1 / Math.sqrt(0.15625)
// 2.5298221281347035
// > Math.pow(0.15625, -0.5)
// 2.5298221281347035
// > Q_rsqrt(0.15625)
// 2.5254863388218056

chjj

78d841612ec3cfa069040348a45bbb0eca7006cdc01ed4be18d51ee8c0fd07bf
d2fe25f0ecc567158923131f12ab10b370463cebace765a0f9bfc4b3e655b183
3120a3bef7c2d904d6742c375214594420e90f953d54d391ccaefdce5ae60910

chjj

$ node net.js
writing pub
received pub: 026c975cf8cffd1fe2109aa042e2800eb8358864bb7b4961386cb95f3d98355d97 (33)
writing greeting
received res
connected
SingleFundingResponse {
  channelID: 0,
 channelDerivationPoint: ,

chjj

function serializeList(items) {
  var size = 0;
  var i, p, data;

  for (i = 0; i < items.length; i++)
    size += 4 + items[i].length;

  data = new Buffer(size);
  p = 0;

chjj

# Track fedex/ups/usps/iparcel/upsmi packages.
track-package() {
  local open track fedex ups usps len url i \
        urls upsmi iparcel iparcel_ usps_ dhl ontrac

  if test -z "$1"; then
    return 1
  fi

  if test "$1" = 'open'; then

chjj

/*!
 * scrypt
 * Copyright (c) 2016, Christopher Jeffrey (MIT License).
 *
 * Ported from:
 * https://github.com/Tarsnap/scrypt/blob/master/lib/crypto/crypto_scrypt-ref.c
 *
 * Copyright 2009 Colin Percival
 * All rights reserved.
 *

chjj

Bitcoin: A Peer-to-Peer Electronic Cash System

Satoshi Nakamoto satoshin@gmx.com (www.bitcoin.org)

Abstract. A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without going through a financial institution. Digital signatures provide part of the solution, but the main benefits are lost if a trusted third party is still required to prevent double-spending. We propose a solution to the double-spending problem using a peer-to-peer network. The network timestamps transactions by hashing them into

chjj

'use strict';

// original: https://gist.github.com/indutny/8d0f5376ee643962a9f0

const BN = require('bn.js');
const elliptic = require('elliptic');
const bcoin = require('bcoin');

const ecdsa = new elliptic.ec('secp256k1');

chjj

/**
 * Hashes signed by satoshi which do not appear on the blockchain.
 * All of these hashes and signatures verify against satoshi's original public key of:
 * 0411db93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3
 *
 * First TX in bitcoin history:
 *   https://blockchain.info/tx/f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16?show_adv=true
 *
 * The pubkey used to redeem the funds:
 *   https://blockchain.info/tx-index/14862/0