# request missing tx
for tx_hash, tx_height in self.transactions.items():
if tx_hash not in self.verified_tx:
+ # do not request merkle branch before headers are available
+ if tx_height > self.network.blockchain.height():
+ continue
if self.merkle_roots.get(tx_hash) is None and tx_hash not in requested_merkle:
if self.network.send([ ('blockchain.transaction.get_merkle',[tx_hash, tx_height]) ], lambda i,r: self.queue.put(r)):
print_error('requesting merkle', tx_hash)