assert bits == header.get('bits')
assert eval('0x'+_hash) < target
except:
+ # this can be caused by a reorg.
print_error("verify header failed"+ repr(header))
- # this can be caused by a reorg.
+ # undo verifications
+ for tx_hash, tx_height in self.verified_tx.items():
+ if tx_height >= height:
+ print "redoing", tx_hash
+ self.verified_tx.pop(tx_hash)
# return False to request previous header.
return False
self.set_local_height()
def save_header(self, header):
- # todo: invalidate tx verifications if we rewind
data = self.header_to_string(header).decode('hex')
assert len(data) == 80
height = header.get('block_height')