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Update merkle_proofs.md

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terence tsao 2019-09-01 11:07:44 -07:00 committed by GitHub
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specs/light_client/merkle_proofs.md
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@ -62,7 +62,7 @@ Note that the generalized index has the convenient property that the two childre
def merkle_tree(leaves: Sequence[Hash]) -> Sequence[Hash]: def merkle_tree(leaves: Sequence[Hash]) -> Sequence[Hash]:
padded_length = get_next_power_of_two(len(leaves)) padded_length = get_next_power_of_two(len(leaves))
o = [Hash()] * padded_length + list(leaves) + [Hash()] * (padded_length - len(leaves)) o = [Hash()] * padded_length + list(leaves) + [Hash()] * (padded_length - len(leaves))
for i in range(len(padded_length) - 1, 0, -1): for i in range(padded_length - 1, 0, -1):
o[i] = hash(o[i * 2] + o[i * 2 + 1]) o[i] = hash(o[i * 2] + o[i * 2 + 1])
return o return o
``` ```