Break LMD GHOST ties in favor of higher hash tree roots (#737)

2019-03-08 02:58:38 -06:00 · 2019-03-08 02:58:38 -06:00 · 8dcc1ba930
parent 8e08e742dc
commit 8dcc1ba930
1 changed files with 1 additions and 1 deletions
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@ -1654,7 +1654,7 @@ def lmd_ghost(store: Store, start_state: BeaconState, start_block: BeaconBlock)
        children = get_children(store, head)
        if len(children) == 0:
            return head
-        head = max(children, key=get_vote_count)
+        head = max(children, key=lambda x: (get_vote_count(x), hash_tree_root(x)))
 ```

 ## Beacon chain state transition function