From 342d3e14783f837739455121f8872cc410ed172a Mon Sep 17 00:00:00 2001
From: Miguel Freitas <miguel@mf.site>
Date: Mon, 30 Dec 2013 15:12:52 -0200
Subject: [PATCH] just learned that scrypt is too slow for
 CBlockTreeDB::LoadBlockIndexGuts. disable CheckIndex() like litecoin does.

---
 src/main.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main.h b/src/main.h
index 26290efa..9af58618 100644
--- a/src/main.h
+++ b/src/main.h
@@ -756,7 +756,10 @@ public:
 
     bool CheckIndex() const
     {
-        return CheckProofOfWork(CBlock(GetBlockHeader()).GetPoWHash(), nBits);
+        /** Scrypt is used for block proof-of-work, but for purposes of performance the index internally uses sha256.
+         *  This check was considered unneccessary given the other safeguards like the genesis and checkpoints. */
+        return true;
+        //return CheckProofOfWork(CBlock(GetBlockHeader()).GetPoWHash(), nBits);
     }
 
     enum { nMedianTimeSpan=11 };