From df484d87424674b88ccfa9392cfa9a75cc4abe48 Mon Sep 17 00:00:00 2001
From: alpaylan
Date: Mon, 12 Apr 2021 19:59:52 +0300
Subject: six rightmost zeros for mining

---
 examples/mining.rs | 4 ++--
 src/handlers.rs    | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/examples/mining.rs b/examples/mining.rs
index 56e33f3..c95c214 100644
--- a/examples/mining.rs
+++ b/examples/mining.rs
@@ -23,9 +23,9 @@ pub fn main() {
 
         let result = Blake2s::digest(&j);
 
-        let first_five = result[31] as i32 + result[30] as i32 + (result[29] << 4) as i32;
+        let first_six = result[31] as i32 + result[30] as i32 + result[29] as i32;
 
-        if first_five == 0 {
+        if first_six == 0 {
             println!("{} - {:x}\n{:?}", nonce, result, b);
             break;
         }
diff --git a/src/handlers.rs b/src/handlers.rs
index 6edc96f..38bd459 100644
--- a/src/handlers.rs
+++ b/src/handlers.rs
@@ -137,8 +137,8 @@ pub async fn propose_block(new_block: Block, db: Db) -> Result<impl warp::Reply,
     let hashvalue = Blake2s::digest(&naked_block_flat);
     let hash_string = format!("{:x}", hashvalue);
 
-    // 5 rightmost bits are zero
-    let should_zero = hashvalue[31] as i32 + hashvalue[30] as i32 + (hashvalue[29] << 4) as i32;
+    // 6 rightmost bits are zero
+    let should_zero = hashvalue[31] as i32 + hashvalue[30] as i32 + hashvalue[29] as i32;
 
     if should_zero == 0 {
         // one last check to see if block is telling the truth
-- 
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