CryptoManiac/novacoin — pull request #2 by sunnyking (2013-03-26 05:37:11+00:00)
Title: Protocol switch of entropy bit for Novacoin support of p2pool

Entropy is generated from last bit of block hash starting #9689.
block hash is better than merkle hash because merkle hash can be manipulated by pool nodes if not other nodes.

Note: Upgrade required before March 30. I miscalculated the impact date earlier.