From 0c3657e167f43161ab7c81e2cbdd3f12a35a1ec8 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Fri, 30 Mar 2018 08:17:10 -0700
Subject: [PATCH] networks: update checkpoints.

---
 lib/protocol/networks.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 63fcec26..8fb04fb6 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -101,7 +101,12 @@ main.checkpointMap = {
   440000: '9bf296b8de5f834f7635d5e258a434ad51b4dbbcf7c08c030000000000000000',
   450000: '0ba2070c62cd9da1f8cef88a0648c661a411d33e728340010000000000000000',
   460000: '8c25fc7e414d3e868d6ce0ec473c30ad44e7e8bc1b75ef000000000000000000',
-  470000: '89756d1ed75901437300af10d5ab69070a282e729c536c000000000000000000'
+  470000: '89756d1ed75901437300af10d5ab69070a282e729c536c000000000000000000',
+  480000: 'b1a896fd31e639e0c74d1abeb1dbc93f176b767a5d4c02010000000000000000',
+  490000: '90dec4d0153f20fbdcb245b1d5fb3d5a8d7bb1379106de000000000000000000',
+  500000: '045d94a1c33354c3759cc0512dcc49fd81bf4c3637fb24000000000000000000',
+  510000: '297301b8ca28584cb0c31c7e3fed51696bc33ef8782615000000000000000000',
+  515000: '52a71dacfc03557e8eb0afa8cc04f335255d89208da83c000000000000000000'
 };
 
 /**
@@ -110,7 +115,7 @@ main.checkpointMap = {
  * @default
  */
 
-main.lastCheckpoint = 470000;
+main.lastCheckpoint = 515000;
 
 /**
  * @const {Number}
@@ -183,7 +188,7 @@ main.pow = {
    */
 
   chainwork: new BN(
-    '00000000000000000000000000000000000000000074093f7ecede98cadd3a32',
+    '00000000000000000000000000000000000000000162db51326a8dfa4f9a84f9',
     'hex'
   ),