From 44a8a23932cd16eb19ba49ef2b809a169e99ddb8 Mon Sep 17 00:00:00 2001
From: Anton Kaliaev <anton.kalyaev@gmail.com>
Date: Mon, 16 Apr 2018 13:40:19 +0200
Subject: [PATCH] [docs/Commit] all application instances must return the same
 hash

Refs https://github.com/tendermint/tendermint/issues/1422
---
 specification.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/specification.rst b/specification.rst
index 4b2704637..f98a46f49 100644
--- a/specification.rst
+++ b/specification.rst
@@ -284,3 +284,6 @@ Commit
 
    - Persist the application state.
    - Return a Merkle root hash of the application state.
+   - It's critical that all application instances return the same hash. If not,
+     they will not be able to agree on the next block, because the hash is
+     included in the next block!