Harald Schilly haraldschilly

This Gist moved to https://github.com/coinlab/bitcoin-docs.

SEE BIP 70

See https://en.bitcoin.it/wiki/BIP_0070 for the latest version of this document; I'll keep this document so the process of discussion/revision isn't lost.

Bitcoin Payment Messages

This document proposes protocol buffer-based formats for a simple payment protocol between a customer's bitcoin client software and a merchant.

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.

Abstract

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.

	import urllib2, urllib
	import logging

	def send_mail_sendgrid(from, to, subject, body):
	base_url = 'https://sendgrid.com/api/mail.send.json'
	params = {
	'api_user': '[email protected]',
	'api_key': 'yourpassword',
	'from': from,
	'to': to,

	"""
	Low rank approximation for the lena image
	"""
	import numpy as np
	import scipy as sp
	from scipy import linalg
	import pylab as pl

	X = sp.lena().astype(np.float)
	pl.gray()

	#!/usr/bin/env python
	# Copyright Harald Schilly <harald.schil.ly>
	# License: Apache 2.0
	# Hint: run it periodically via: watch -d -n 30 python countdown.py
	# (sorry blockexplorer ...)

	# which halfing? 1, 2, ...
	nb_halfing = 2
	quot = 2 ** nb_halfing
	reward = 50. / quot

	# maybe.py - a Pythonic implementation of the Maybe monad
	# Copyright (C) 2014. Senko Rasic <[email protected]>
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	# copies of the Software, and to permit persons to whom the Software is
	# furnished to do so, subject to the following conditions:
	#