diff --git a/_data/chains/eip155-100001.json b/_data/chains/eip155-100001.json
index aa3c3684..82595bc4 100644
--- a/_data/chains/eip155-100001.json
+++ b/_data/chains/eip155-100001.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "mainnet",
   "rpc": [
-    "http://jrpc.mainnet.quarkchain.io:39000/"
+    "http://eth-jrpc.mainnet.quarkchain.io:39000/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-100000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-mainnet",
+    "url": "https://mainnet.quarkchain.io/0",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-100002.json b/_data/chains/eip155-100002.json
index f7a30475..7bc05ab8 100644
--- a/_data/chains/eip155-100002.json
+++ b/_data/chains/eip155-100002.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "mainnet",
   "rpc": [
-    "http://jrpc.mainnet.quarkchain.io:39001/"
+    "http://eth-jrpc.mainnet.quarkchain.io:39001/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-100000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-mainnet",
+    "url": "https://mainnet.quarkchain.io/1",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-100003.json b/_data/chains/eip155-100003.json
index 6dd08d83..5f49588a 100644
--- a/_data/chains/eip155-100003.json
+++ b/_data/chains/eip155-100003.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "mainnet",
   "rpc": [
-    "http://jrpc.mainnet.quarkchain.io:39002/"
+    "http://eth-jrpc.mainnet.quarkchain.io:39002/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-100000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-mainnet",
+    "url": "https://mainnet.quarkchain.io/2",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-100004.json b/_data/chains/eip155-100004.json
index 6da5d4f0..eb343d61 100644
--- a/_data/chains/eip155-100004.json
+++ b/_data/chains/eip155-100004.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "mainnet",
   "rpc": [
-    "http://jrpc.mainnet.quarkchain.io:39003/"
+    "http://eth-jrpc.mainnet.quarkchain.io:39003/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-100000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-mainnet",
+    "url": "https://mainnet.quarkchain.io/3",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-100005.json b/_data/chains/eip155-100005.json
index 51a99cc4..336e01fe 100644
--- a/_data/chains/eip155-100005.json
+++ b/_data/chains/eip155-100005.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "mainnet",
   "rpc": [
-    "http://jrpc.mainnet.quarkchain.io:39004/"
+    "http://eth-jrpc.mainnet.quarkchain.io:39004/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-100000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-mainnet",
+    "url": "https://mainnet.quarkchain.io/4",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-100006.json b/_data/chains/eip155-100006.json
index 3b59fccd..8fe4ea63 100644
--- a/_data/chains/eip155-100006.json
+++ b/_data/chains/eip155-100006.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "mainnet",
   "rpc": [
-    "http://jrpc.mainnet.quarkchain.io:39005/"
+    "http://eth-jrpc.mainnet.quarkchain.io:39005/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-100000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-mainnet",
+    "url": "https://mainnet.quarkchain.io/5",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-100007.json b/_data/chains/eip155-100007.json
index ad839418..5e640378 100644
--- a/_data/chains/eip155-100007.json
+++ b/_data/chains/eip155-100007.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "mainnet",
   "rpc": [
-    "http://jrpc.mainnet.quarkchain.io:39006/"
+    "http://eth-jrpc.mainnet.quarkchain.io:39006/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-100000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-mainnet",
+    "url": "https://mainnet.quarkchain.io/6",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-100008.json b/_data/chains/eip155-100008.json
index 95adcd34..67419f39 100644
--- a/_data/chains/eip155-100008.json
+++ b/_data/chains/eip155-100008.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "mainnet",
   "rpc": [
-    "http://jrpc.mainnet.quarkchain.io:39007/"
+    "http://eth-jrpc.mainnet.quarkchain.io:39007/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-100000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-mainnet",
+    "url": "https://mainnet.quarkchain.io/7",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-110001.json b/_data/chains/eip155-110001.json
index 9020d5bf..a5a9531b 100644
--- a/_data/chains/eip155-110001.json
+++ b/_data/chains/eip155-110001.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "devnet",
   "rpc": [
-    "http://jrpc.devnet.quarkchain.io:39000/"
+    "http://eth-jrpc.devnet.quarkchain.io:39000/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-110000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-devnet",
+    "url": "https://devnet.quarkchain.io/0",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-110002.json b/_data/chains/eip155-110002.json
index ff6f0564..4ba91f89 100644
--- a/_data/chains/eip155-110002.json
+++ b/_data/chains/eip155-110002.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "devnet",
   "rpc": [
-    "http://jrpc.devnet.quarkchain.io:39001/"
+    "http://eth-jrpc.devnet.quarkchain.io:39001/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-110000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-devnet",
+    "url": "https://devnet.quarkchain.io/1",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-110003.json b/_data/chains/eip155-110003.json
index e316efb9..ae85afa7 100644
--- a/_data/chains/eip155-110003.json
+++ b/_data/chains/eip155-110003.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "devnet",
   "rpc": [
-    "http://jrpc.devnet.quarkchain.io:39002/"
+    "http://eth-jrpc.devnet.quarkchain.io:39002/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-110000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-devnet",
+    "url": "https://devnet.quarkchain.io/2",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-110004.json b/_data/chains/eip155-110004.json
index a1c228c6..88b29a72 100644
--- a/_data/chains/eip155-110004.json
+++ b/_data/chains/eip155-110004.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "devnet",
   "rpc": [
-    "http://jrpc.devnet.quarkchain.io:39003/"
+    "http://eth-jrpc.devnet.quarkchain.io:39003/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-110000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-devnet",
+    "url": "https://devnet.quarkchain.io/3",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-110005.json b/_data/chains/eip155-110005.json
index 52f6564d..1cc024e7 100644
--- a/_data/chains/eip155-110005.json
+++ b/_data/chains/eip155-110005.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "devnet",
   "rpc": [
-    "http://jrpc.devnet.quarkchain.io:39004/"
+    "http://eth-jrpc.devnet.quarkchain.io:39004/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-110000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-devnet",
+    "url": "https://devnet.quarkchain.io/4",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-110006.json b/_data/chains/eip155-110006.json
index 123c9a11..6ef20e0e 100644
--- a/_data/chains/eip155-110006.json
+++ b/_data/chains/eip155-110006.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "devnet",
   "rpc": [
-    "http://jrpc.devnet.quarkchain.io:39005/"
+    "http://eth-jrpc.devnet.quarkchain.io:39005/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-110000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-devnet",
+    "url": "https://devnet.quarkchain.io/5",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-110007.json b/_data/chains/eip155-110007.json
index 46c66797..c34d8408 100644
--- a/_data/chains/eip155-110007.json
+++ b/_data/chains/eip155-110007.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "devnet",
   "rpc": [
-    "http://jrpc.devnet.quarkchain.io:39006/"
+    "http://eth-jrpc.devnet.quarkchain.io:39006/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-110000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-devnet",
+    "url": "https://devnet.quarkchain.io/6",
+    "standard": "EIP3091"
+  }]
 }
diff --git a/_data/chains/eip155-110008.json b/_data/chains/eip155-110008.json
index 486b77c7..066c7b2a 100644
--- a/_data/chains/eip155-110008.json
+++ b/_data/chains/eip155-110008.json
@@ -3,7 +3,7 @@
   "chain": "QuarkChain",
   "network": "devnet",
   "rpc": [
-    "http://jrpc.devnet.quarkchain.io:39007/"
+    "http://eth-jrpc.devnet.quarkchain.io:39007/"
   ],
   "faucets": [
   ],
@@ -19,5 +19,10 @@
   "parent": {
     "chain": "eip155-110000",
     "type": "shard"
-  }
+  },
+  "explorers": [{
+    "name": "quarkchain-devnet",
+    "url": "https://devnet.quarkchain.io/7",
+    "standard": "EIP3091"
+  }]
 }