Re: [BRK] Breakout Chain | Coin Sale Complete | Multicurrencies

I'm playing with getblocktemplate, provided by client.
I wrote simple proxy between breakoutd and cgminer, but all my mined block was rejected.
I searched why and I found my math is wrong.

For example, block 14814 has only 1 tx == coinbase tx:

Code:

coinbase = '0100000028c8be57010000000000000000000000000000000000000000000000000000000000000000ffffffff0602de39025901ffffffff0100f2052a01000000390000001976a9147d1f3b8b8d5be1353f08acb780780076d188ef6688ac000000000000000000'

Then:

Code:

coinbase_hash_bin = hashlib.sha256(hashlib.sha256(binascii.unhexlify(coinbase)).digest()).digest()

and

Code:

def build_merkle_root(self, merkle_branch, coinbase_hash_bin):
merkle_root = coinbase_hash_bin
for h in self.merkle_branch:
merkle_root = doublesha(merkle_root + binascii.unhexlify(h))
return binascii.hexlify(merkle_root)

binascii.hexlify(coinbase_hash_bin) results b1a713d3a3f4cf04ddec887223bb723eb15202edd306a5f8d6ea333fd59027a0

and merkle_root == coinbase_hash_bin for this block

Expected merkle root is 4d6d8cad90a9d97f2755d228e4c0764e10774b8511f99e86ef75679607341f58

What is wrong?

Thank for help.