def addAuxpow(self, block, blkHash, ok):
"""
Fills in the auxpow for the given block message. It is either
chosen to be valid (ok = True) or invalid (ok = False).
"""
target = b"%064x" % uint256_from_compact(block.nBits)
auxpowHex = computeAuxpow(blkHash, target, ok)
block.auxpow = CAuxPow()
block.auxpow.deserialize(BytesIO(hex_str_to_bytes(auxpowHex)))
return block
def addAuxpow(self, block, blkHash, ok):
"""
Fills in the auxpow for the given block message. It is either
chosen to be valid (ok = True) or invalid (ok = False).
"""
tmpl = self.nodes[0].getauxblock()
target = reverseHex(tmpl["_target"])
auxpowHex = computeAuxpow(blkHash, target, ok)
block.auxpow = CAuxPow()
block.auxpow.deserialize(BytesIO(hex_str_to_bytes(auxpowHex)))
return block
def createBlock(self):
"""
Creates and mines a new block with auxpow.
"""
bestHash = self.nodes[0].getbestblockhash()
bestBlock = self.nodes[0].getblock(bestHash)
tip = int(bestHash, 16)
height = bestBlock["height"] + 1
time = bestBlock["time"] + 1
block = create_block(tip, create_coinbase(height), time)
block.mark_auxpow()
block.rehash()
newHash = "%032x" % block.sha256
target = b"%032x" % uint256_from_compact(block.nBits)
auxpowHex = computeAuxpow(newHash, target, True)
block.auxpow = CAuxPow()
block.auxpow.deserialize(BytesIO(hex_str_to_bytes(auxpowHex)))
return block, newHash