test height
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@ -319,14 +319,15 @@ class Blockchain(util.PrintError):
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return new_bits, bitsBase << (8 * (bitsN-3))
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def can_connect(self, header):
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previous_height = header['block_height'] - 1
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previous_header = self.read_header(previous_height)
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height = header['block_height']
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if self.height() != height - 1:
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return False
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previous_header = self.read_header(height -1)
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if not previous_header:
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return False
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prev_hash = hash_header(previous_header)
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if prev_hash != header.get('prev_block_hash'):
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return False
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height = header.get('block_height')
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bits, target = self.get_target(height / 2016)
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try:
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self.verify_header(header, previous_header, bits, target)
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