diff --git a/SDK/Wrapper/ChainParams.cpp b/SDK/Wrapper/ChainParams.cpp
index a2ba9f5a9..8cf53f04a 100644
--- a/SDK/Wrapper/ChainParams.cpp
+++ b/SDK/Wrapper/ChainParams.cpp
@@ -78,29 +78,25 @@ namespace Elastos {
 		const BRCheckPoint IdChainMainNetCheckpoints[] = {
 			{ 0,      uint256("56be936978c261b2e649d58dbfaf3f23d4a868274f5522cd2adb4308a955c4a3"), 1530360000, 486801407 },
 			{ 2016,   uint256("df060a6475ace78657e1ec945cebb37f2ffb6367b185f9ba5edfa987f16b84f4"), 1531426582, 520126740 },
-			{ 4032,   uint256("b731b13902f3f2d275589828504b4bc2a8d67d78dbb08e323925282d27fac755"), 1531907920, 520341697 },
 			{ 6048,   uint256("4e6a53d3e3e61d4883a10d62fb42afb62ad6f10807bcc3791db284f43b063671"), 1532395676, 522028475 },
-			{ 8064,   uint256("83bcb00de21a4390959a3f126c44a2547ada830e1411fde1cdef4fb61eb7598d"), 1534765774, 537293716 },
 			{ 10080,  uint256("00ac65927dcf741e87b0560b9676a35abc5d1ab74afc6144f4159315f15561d2"), 1535069960, 539089007 },
-			{ 12096,  uint256("a942ab0b540e92e96bbced320ec9162354c971e5812e904e73010ff94eee2b16"), 1535300054, 538192810 },
 			{ 14112,  uint256("d342ee0817e30a57a515ccfaaf836e7314aac1235d0659d5e6ffc46671ae4979"), 1535367638, 527395580 },
-			{ 16128,  uint256("2106fe8000c01eecba9d5396f26c401dc5f4a1a90dd9f3f728e3a770afbc842b"), 1535435331, 520256486 },
 			{ 18144,  uint256("fc4e7ba460e38964faeb33873418c9fcd3ae2648a543cc1e8f5c47806b593ac8"), 1535503457, 504235070 },
-			{ 20160,  uint256("2e42266a8b6abff2f1122885a0f0f00c1f1adaeb4ed0572aee1bbc681f41f5f9"), 1535572617, 492035370 },
 			{ 22176,  uint256("9ef0a2d21af1f1ebba5b092ce0f672b221ea7d1f2e765790c0741aaff7667da2"), 1535640920, 486964831 },
-			{ 24192,  uint256("d32c06fa82a121ef6e94f8292ea7d27db5125195d5f9a6bac9c0f224f7a06c2d"), 1535773072, 476801991 },
 			{ 26208,  uint256("a9eb520903f5f1ec1a11a3f5040791d59ae63b8e16846a994bbd303ba43b50db"), 1536008684, 475415774 },
-			{ 28224,  uint256("682a75e280934562bd92e219581dc61fc347b1bc6e5381371397c5202db81e53"), 1536252045, 475473438 },
 			{ 30240,  uint256("470d858db326df0e738248ac5f5811f1b31a0c1ca1892f17a93673efefde3a45"), 1536500538, 476055185 },
-			{ 32256,  uint256("6695557d6e012b9d122cf96ed20aa23d8a37518f30e7a8d58f740606ddb03499"), 1536743006, 476264083 },
 			{ 34272,  uint256("f78fc41c0d2ba1c0c133ebcb351ecfedc42324a31201b6c207d0165016430a74"), 1536991969, 476548897 },
-			{ 36288,  uint256("d22c1443f5b3eff60a95303766eb4397bc9c027e3ab87b5aedbaa967c7d8d130"), 1537238408, 476538986 },
 			{ 38304,  uint256("9592ad50c220ea2900d0c3659df470b4e8e459ac6ee2d43ddc9b6ddd15166645"), 1537492347, 477909524 },
-			{ 40320,  uint256("7cd2999991ad8d9145035a1506a97d29641cde4d44f78533715cf469e19755ee"), 1537730755, 477389634 },
 			{ 42336,  uint256("548c15f8daede3d85aed4a6ad8bf013c6cb2b3c7ea7aba0134ffb2adc450850a"), 1537976718, 478079428 },
-			{ 44352,  uint256("b3af4dd06d5b5f3e033d36a6096665fb82ddd52453191186ace7bd25151d442d"), 1538227932, 486572564 },
 			{ 46368,  uint256("f9e8780e4df7eeecf80f8cb8fcdd2f08f2357da9f50557235373c20123e9fa45"), 1538494105, 486580306 },
-			{ 48384,  uint256("5b968beba5751a0c4e6deda9805fb3b33e7dfd568d51cb460f22dbde8c730b6d"), 1538805631, 486623668 },
+			{ 50400,  uint256("b877aa70a40ec714b211c19d0f00060f86e659acf2766bd2a3d6a2fc24f29a6d"), 1539105182, 486700362 },
+			{ 54432,  uint256("e40aab4302d385b0ec4cc85ca8a1c1a8c338e2b01d0a67c70e7f9bc0b7e4995b"), 1539618297, 486739142 },
+			{ 58464,  uint256("800c33ab6faf802559f94106f9012f734ff08a2f183f6eccebc3016735557602"), 1540197515, 487108954 },
+			{ 62496,  uint256("760a11232f9fcf83dd30a17f9feac767c3a1158371fa0e051b1f2956e8b96ecc"), 1540686763, 487128669 },
+			{ 66528,  uint256("886813b522b8ed25b5ed49a466a60dabc9ec873505f6febf650013d0de8ff760"), 1541180178, 487200624 },
+			{ 70560,  uint256("a8efba9d67b13d05b1037b8a53ee917c19e1f0505808b8ba345ee6dd29fb2f5e"), 1541773076, 488572069 },
+			{ 74592,  uint256("63ba136d741cdc27fa7c03ce438c1d2b9caf7540a3be801c967c09697f0458dc"), 1542924090, 503654166 },
+			{ 76608,  uint256("5936928083508074454609d054f1da99b1b9342b5df46dcf1af87347382f9d3e"), 1543749293, 520134229 },
 		};
 		const char *IdChainMainNetDNSSeeds[] = {
 			"did-mainnet-001.elastos.org",
@@ -216,6 +212,17 @@ namespace Elastos {
 			{ 38304,  uint256("3763dde6fa684f31615b4237a17116777bf807a19701c3d5d02604e9bdcea1a6"), 1538035204, 545259519 },
 			{ 40320,  uint256("25ad2ec3bd7531301d367b4f7b1357e567665213c776744775fed7f80b9b0349"), 1538398560, 545259519 },
 			{ 42336,  uint256("18086d3158974bbc1a331b194e0580504ed76058d88da84fc446b0020b63c329"), 1538663566, 545259519 },
+			{ 44352,  uint256("071f24ec0ef56e9defd74854afaf158f10b2ba60ef67af19862bd8daabea9f27"), 1539157412, 541281241 },
+			{ 46368,  uint256("8bd2d16668222028d5f4b74712b3192554cdf11fadda2416e6f2162ec62d97fa"), 1539464174, 545259519 },
+			{ 48384,  uint256("58409510a1c6004fc3bf402cac445387730ccbacdfb5458f762811be01962f51"), 1539864175, 545259519 },
+			{ 50400,  uint256("1a3b7aceaee086a0d6181729a19c4b81f25310c538735bca6982fba03f0330d2"), 1540465729, 545259519 },
+			{ 52416,  uint256("88292c831743cd009981f1aeec463fca910991a549ec146e5fd306da8ebbdc88"), 1540769673, 545259519 },
+			{ 54432,  uint256("2a03b5c9f2e5e4ca54910306ed72b30ed9bfafe6c5a103a831887082bef5efca"), 1541438467, 545259519 },
+			{ 56448,  uint256("76e6df4b1ed5fe2511912e31c1b60379c46662170222995d7fd5ea0bac5db2c4"), 1541858328, 545259519 },
+			{ 58464,  uint256("d8fc37ef3d581e94894c347ca96d74cce1f090eb886cfaae140b494af436ad45"), 1542346307, 545259519 },
+			{ 60480,  uint256("9c1be4568be8c9ce15921484c60356bde9b809c2b4354631bd5089730d6fdbe7"), 1542837332, 545259519 },
+			{ 62496,  uint256("620692532165e4b2bb9de2830587d481805cf4cc68f93133e8672a2ef94c1d7b"), 1543353345, 545259519 },
+			{ 64512,  uint256("3ff859fbc85bcf16ca9b7e5a1c618b6f1f536e26b63a3a416d1cc21b52ed801a"), 1543634765, 544393375 },
 		};
 		const char *IdChainTestNetDNSSeeds[] = {
 			"did-testnet-001.elastos.org",