diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 8f2f33f0..59473de3 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -535,10 +535,14 @@ testnet.magic = 0xf25ac0fd;
 testnet.port = 17312;
 
 testnet.checkpointMap = {
-  2056: '8932a8789c96c516d8a1080a29c7e7e387d2397a83864f9adcaf97ba318a7417',
+  2056: '484137382926862f600e0fe5f9c6e8a5a1fec22406f151a6ea1b7371b04d33d3',
+  10000: '7938fd4a183b4d06234983cb0c1aace5e153ef37e335f80652ecd12c5f606890',
+  50000: '070cf3309161205b8c3c99df1e556b1e86a0315ad811a7c9e4d12f693f1c9a62',
+  75000: '5ab6b417eb612d6ec10cec0acd5d23a2b9d3ab78e3af06a438123bc193bb6da2',
+  100000: '8813cf76021b3e6fc09d16f5d0d00fd9af8cf51c34064f22fe55e6061b755b91'
 };
 
-testnet.lastCheckpoint = 2056;
+testnet.lastCheckpoint = 100000;
 
 testnet.halvingInterval = 800000;
 
diff --git a/scripts/reverseHex.js b/scripts/reverseHex.js
index 417f90d2..2118546d 100644
--- a/scripts/reverseHex.js
+++ b/scripts/reverseHex.js
@@ -1,31 +1,38 @@
 var checkpoints = {
-  100000: 'c0fb4e2c6b96e6871a2acfd12299fdbb95c71b0887b03469fb2e313e75a749fd',
-  200000: 'a939b5c2f2a9d7430f833a9ffc1ecd7eb433add3671677809cbf6b8bdc1430ec',
-  300000: '77ec9ac7085e351acd58a103ba3c8b207e9ae3afcc4f348fece25908129040fc',
-  400000: '7ece07533f8ef9366121865219d2cf3d2ec4c4cd1cebc8f80493a66ebc0e2c67',
-  500000: 'fec49695e922d3842feb28bbdd4219ab4704a61083a4d4b87229f27626ba1b0c',
-  600000: '6592f6f6ad67d29c07ce993c8167ed2d4713976b9de701b0edb95da67e5b4fd2',
-  700000: 'ca10962bb25a4184bb3cb6432efaa9b4bb0c743e1130527443912d87c360459a',
-  800000: 'af8cb31e71ba877d0d8c95c580d6980cd14fe605c81e79a35b4acba9980c9307',
-  900000: '8debc9619c2e204fdeaa996b9917b6b95b965f4a2635981cb626d8780c4a43af',
-  1000000: 'b68bd62db4374adf1ba626edc90580aca90e4cad53c1920b697d45c4df0994fd',
-  1100000: 'a6d51d335b9a382ca8683c849b819fe5f9cec43a5f51beaa7e2f44457bf5ed16',
-  1200000: 'f2161c0da5ab6af306bbb8b4da3d5b768d17cd93178d27d414b77d9eb4398f08',
-  1300000: '3751cc16a35f91c61a6e9fcdf3cbdbbf631a92cad2221a9e36e6fb8833162b91',
-  1400000: '705aa04e6bc0a9ecac1fb2e37eccb3cccc0ae1e3f1f558cbe9791cad1fca565f',
-  1500000: '30961f1a45cd0b6a7d58c28769d6b77babc068d09db4934ff9aa4922ee0551f2',
-  1600000: '5b0d109822240bcdaa73c89c21c974563405f3b10949a8ed56d8e6c67e97eeca',
-  1700000: '684818f8534c7f8ef941ce02e7c34cb44d7ede5cace36cb6f2d70532283dbafe',
-  1800000: 'cc560b5cf3ff15d57cc1d34fff827eceee69cd068a949cc8f84fc4a541980390',
-  1900000: '60912e3b6cd7aee10705a683d6653e5862800a5b8e4ea12ea587238db2c75b6d',
-  2000000: '4a8cb5ca397b7c92c270ccfa9139ffb93f7c5b9515e52486c635c7a1dee9d221',
-  2100000: 'ceb4ddb46a9385096bd161bd84b68af29670958d942c7ef85c95ec796cce5f01',
-  2200000: 'ae999db0281b4b0238da15f116b929fc332cb1b19629d4355958220508787558',
-  2300000: 'a0ac730ed5961f231d7312f3d910fa8707e91455405c0232486c974651a10838',
-  2400000: '2dfb9b767428dbd02995074635e3aa54c044fe130dde85dd5e9a533d329be1d2',
-  2500000: '478b768a963bd4357df2a94f633774ffb0e586726c10fedff79bf0293b21512e',
-  2600000: 'a35101676beabefa360239eeab2b99c05a458f2b6bd614154fc740792ed1ba77',
-  2700000: '9e9f0e1b199aa6a506ce359928ca4fbde61b69368bacefa37f8bafa967f48443'
+  // Mainnet
+  // 100000: 'c0fb4e2c6b96e6871a2acfd12299fdbb95c71b0887b03469fb2e313e75a749fd',
+  // 200000: 'a939b5c2f2a9d7430f833a9ffc1ecd7eb433add3671677809cbf6b8bdc1430ec',
+  // 300000: '77ec9ac7085e351acd58a103ba3c8b207e9ae3afcc4f348fece25908129040fc',
+  // 400000: '7ece07533f8ef9366121865219d2cf3d2ec4c4cd1cebc8f80493a66ebc0e2c67',
+  // 500000: 'fec49695e922d3842feb28bbdd4219ab4704a61083a4d4b87229f27626ba1b0c',
+  // 600000: '6592f6f6ad67d29c07ce993c8167ed2d4713976b9de701b0edb95da67e5b4fd2',
+  // 700000: 'ca10962bb25a4184bb3cb6432efaa9b4bb0c743e1130527443912d87c360459a',
+  // 800000: 'af8cb31e71ba877d0d8c95c580d6980cd14fe605c81e79a35b4acba9980c9307',
+  // 900000: '8debc9619c2e204fdeaa996b9917b6b95b965f4a2635981cb626d8780c4a43af',
+  // 1000000: 'b68bd62db4374adf1ba626edc90580aca90e4cad53c1920b697d45c4df0994fd',
+  // 1100000: 'a6d51d335b9a382ca8683c849b819fe5f9cec43a5f51beaa7e2f44457bf5ed16',
+  // 1200000: 'f2161c0da5ab6af306bbb8b4da3d5b768d17cd93178d27d414b77d9eb4398f08',
+  // 1300000: '3751cc16a35f91c61a6e9fcdf3cbdbbf631a92cad2221a9e36e6fb8833162b91',
+  // 1400000: '705aa04e6bc0a9ecac1fb2e37eccb3cccc0ae1e3f1f558cbe9791cad1fca565f',
+  // 1500000: '30961f1a45cd0b6a7d58c28769d6b77babc068d09db4934ff9aa4922ee0551f2',
+  // 1600000: '5b0d109822240bcdaa73c89c21c974563405f3b10949a8ed56d8e6c67e97eeca',
+  // 1700000: '684818f8534c7f8ef941ce02e7c34cb44d7ede5cace36cb6f2d70532283dbafe',
+  // 1800000: 'cc560b5cf3ff15d57cc1d34fff827eceee69cd068a949cc8f84fc4a541980390',
+  // 1900000: '60912e3b6cd7aee10705a683d6653e5862800a5b8e4ea12ea587238db2c75b6d',
+  // 2000000: '4a8cb5ca397b7c92c270ccfa9139ffb93f7c5b9515e52486c635c7a1dee9d221',
+  // 2100000: 'ceb4ddb46a9385096bd161bd84b68af29670958d942c7ef85c95ec796cce5f01',
+  // 2200000: 'ae999db0281b4b0238da15f116b929fc332cb1b19629d4355958220508787558',
+  // 2300000: 'a0ac730ed5961f231d7312f3d910fa8707e91455405c0232486c974651a10838',
+  // 2400000: '2dfb9b767428dbd02995074635e3aa54c044fe130dde85dd5e9a533d329be1d2',
+  // 2500000: '478b768a963bd4357df2a94f633774ffb0e586726c10fedff79bf0293b21512e',
+  // 2600000: 'a35101676beabefa360239eeab2b99c05a458f2b6bd614154fc740792ed1ba77',
+  // 2700000: '9e9f0e1b199aa6a506ce359928ca4fbde61b69368bacefa37f8bafa967f48443'
+  // Testnet
+  2056: 'd3334db071731beaa651f10624c2fea1a5e8c6f9e50f0e602f86262938374148',
+  10000: '9068605f2cd1ec5206f835e337ef53e1e5ac1a0ccb834923064d3b184afd3879',
+  50000: '629a1c3f692fd1e4c9a711d85a31a0861e6b551edf993c8c5b20619130f30c07',
+  75000: 'a26dbb93c13b1238a406afe378abd3b9a2235dcd0aec0cc16e2d61eb17b4b65a',
+  100000: '915b751b06e655fe224f06341cf58cafd90fd0d0f5169dc06f3e1b0276cf1388'
 }
 
 var reversedCheckpoints = {}