pjha1994

Your blockchain must have all of the following properties:

• It's a merkle tree, or a construct with equivalent properties.
• There is no single point of trust or authority; nodes are operated by different parties.
• Multiple 'forks' of the blockchain may exist - that is, nodes may disagree on what the full sequence of blocks looks like.
• In the case of such a fork, there must exist a deterministic consensus algorithm of some sort to decide what the "real" blockchain looks like (ie. which fork is "correct").
• The consensus algorithm must be executable with only the information contained in the blockchain (or its forks), and no external input (eg. no decisionmaking from a centralized 'trust node').

If your blockchain is missing any of the above properties, it is not a blockchain, it is just a ledger.

pjha1994

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

• They are the people who get things done. Effective Engineers produce results.

Adopt the Right Mindsets

pjha1994

#!/bin/bash

# --------------------------------------------------------------------------------------------
# Installs Ruby 2.4 using rbenv/ruby-build on the Raspberry Pi (Raspbian)
#
# Run from the web:
#   bash <(curl -s https://gist.githubusercontent.com/blacktm/8302741/raw/install_ruby_rpi.sh)
# --------------------------------------------------------------------------------------------

# Welcome message

pjha1994

import subprocess
import httplib2
import requests
from datetime import datetime
FORMAT = '%d-%m-%Y %H:%M:%S'
my=open('log.txt','a',encoding='utf-8')
def test_internet():
   my.write('\nin test_internet'+'-------------------------'+datetime.now().strftime(FORMAT)+'\n')
   while(True):
      try:

pjha1994

import re
from bs4 import BeautifulSoup
from bs4 import SoupStrainer
import os
import httplib2
from datetime import datetime
c=0

def make_soup(s):
   #test_internet()

pjha1994

import re
from bs4 import BeautifulSoup
from bs4 import SoupStrainer
import os
import httplib2
c=0
def make_soup(s):
   match=re.compile('https://|http://|www.|.com|.in|.org|gov.in')
   if re.search(match,s):
     http = httplib2.Http()