From 73c7f5fbbe533e669b1eaea2dd2752713c35731c Mon Sep 17 00:00:00 2001
From: Hoon <48665813+sh-cha@users.noreply.github.com>
Date: Tue, 10 Dec 2024 14:00:39 +0900
Subject: [PATCH] Update merkle/db.go

Co-authored-by: beer-1 <147697694+beer-1@users.noreply.github.com>
---
 merkle/db.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/merkle/db.go b/merkle/db.go
index 61f7d52..79a2351 100644
--- a/merkle/db.go
+++ b/merkle/db.go
@@ -115,6 +115,8 @@ func GetProofs(db types.DB, leafIndex uint64) (proofs [][]byte, treeIndex uint64
 	height := uint8(0)
 	localNodeIndex := leafIndex - treeInfo.StartLeafIndex
 	for height < treeInfo.TreeHeight {
+        // In `FinalizeWorkingTree`, we ensure that the leaf count of the tree is always a power of two by filling the leaves as needed.
+        // This ensures that there is always a sibling for each leaf node.
 		siblingIndex := localNodeIndex ^ 1 // flip the last bit to find the sibling
 		sibling, err := GetNodeBytes(db, treeInfo.TreeIndex, height, siblingIndex)
 		if err != nil {