Simple python3 implementation of the 0xbitcoin miner for specification purposes
~/0xbitcoinminer-reference-implementation$ sudo pip3 install ethereum
~/0xbitcoinminer-reference-implementation$ python3 mine.py
Valid nonce is: b'\x0e\x93\xa4\x0ff)j\xda\xf4\xe5\x83dJ\x8a\x1a\x1b\xb3\xd7\x91\x7f\xf6\x1c\xa7\xe3Z\xb6\xcf\xcct\x7f\xb4d'
Resulting hash is: 12410395531930134917838337785636795167498964989025901920841582607757319
Challenge (bigger) is: 27606985387162255149739023449108101809804435888681546220650096895197184