diff --git a/networks/duero/config/chain.json b/networks/duero/config/chain.json
index 96c9a8e..0c31d6f 100644
--- a/networks/duero/config/chain.json
+++ b/networks/duero/config/chain.json
@@ -10,49 +10,14 @@
               "list": [
                 "0xdcb7ff1b9fd738a47eaf9b2e0b3d817b1da92781",
                 "0x3e10ae74970da70b706e768eead37b712a698941",
-                "0x0179e19cd246bb7bdec2c998ae0d8307a7eddbc5",
-                "0x37694236ae067fc3e92b981d2f59709e5f11cd82",
-                "0xebb4d380b6ec9447d55f07cff86d53d716e2b0f6",
-                "0xe922ab6b24051db3ce048ab8dbb8a35d2e7e084b"
+                "0x0179e19cd246bb7bdec2c998ae0d8307a7eddbc5"
               ]
             },
-            "30715": {
-              "contract": "0xd83f5948EaD5DF59fb8E9C22E9A390d043137c99"
+            "333": {
+              "safeContract": "0xBDFeAc66c022165Bdb320264398977bf8A54e3C0"
             },
-            "40900": {
-              "contract": "0xdaba5eBAF2915D46F318899ae06E102F3aF04928"
-            },
-            "40960": {
-              "safeContract": "0xdaba5eBAF2915D46F318899ae06E102F3aF04928"
-            },
-            "42335": {
-              "contract": "0x96A00f732B5ef9b704dE31b8C6a35c667e529dCf"
-            },
-            "42415": {
-              "safeContract": "0xfbbd26Cc1fA72035Ff376B2AB8b8815a2E66ebc7"
-            },
-            "42470": {
-              "safeContract": "0xe34DB7AeFe509750E10CBdf486587f57A17022e3"
-            },
-            "42640": {
-              "safeContract": "0xe34DB7AeFe509750E10CBdf486587f57A17022e3"
-            },
-            "42645": {
-              "safeContract": "0xF98f9D6726Bf2C2E9DB9A964c1511908ac8e48E5"
-            },
-            "43180": {
-              "safeContract": "0xf8632Ad4c97a8D6048003fcB4f7284068BF05580"
-            },
-            "50500": {
-              "list": [
-                "0xdcb7ff1b9fd738a47eaf9b2e0b3d817b1da92781",
-                "0x3e10ae74970da70b706e768eead37b712a698941",
-                "0x0179e19cd246bb7bdec2c998ae0d8307a7eddbc5",
-                "0x2085e4c97b0b57e1d060322820fd6d31b4e4b411"
-              ]
-            },
-            "50710": {
-              "safeContract": "0xEA9A4F3B1186c518dA349a95fC250D1d4634e98d"
+            "13333": {
+              "safeContract": "0x4Eb388C190Cde6Bf8C60e37CCd2C8056A184eD43"
             }
           }
         }
@@ -64,42 +29,19 @@
     "minGasLimit": "0x1388",
     "networkID": "0x897",
     "gasLimitBoundDivisor": "0x400",
-    "eip140Transition": 0,
-    "eip211Transition": 0,
-    "eip214Transition": 0,
-    "eip658Transition": 0,
-    "wasmActivationTransition": "40840",
-    "eip145Transition": "40840",
-    "eip1014Transition": "40840",
-    "eip1052Transition": "40840",
-    "eip1283Transition": "40840",
-    "kip4Transition": "40840",
-    "kip6Transition": "40840"
-  },
-  "hardcodedSync": {
-    "header": "f90243a0efe104bba35d37d09d98cacff42cb20d07a3995e9dfd0123bddff149ef38fe0da01dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347943e10ae74970da70b706e768eead37b712a698941a00cfd8111303accc44e7609d6cc7b391b5fd5842a27f5d4fb1e0a76edcee7dd4ea056e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421a056e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421b901000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090fffffffffffffffffffffffffffffffa8298018365b9aa80845cdae1919fde830205008f5061726974792d457468657265756d86312e33332e30826c698412922d1db8418f349a8bc3ae783acab8ff54b8fa9b3cc220fd59de0febe58f9b7d86227cfba1660b2c8d004c8cfa0ec64ccc836611f6cb703ce164c581b0cfb799c98364868f00",
-    "totalDifficulty": "13241407743994478428750296098992396100909794",
-    "CHTs": [
-      "0xb70d6696dc174631600c5dbdf2904e71ea8c631f7f18351694abd845be155b89",
-      "0x6766046356cfdb2c0ce7004bad152993816c7a4cc2cf3c36d350dfff156368ca",
-      "0x0d3a752df00a5e4d0b14d4d7a4f9920382a0a205e0082133c923d38d3530a579",
-      "0x5123e29608190e72d5507e7477144bbbbd09415ac14d37da47ab3ae301405b30",
-      "0xe4d413dcee26b0ae41152ecd9a294c4af73b5bf7015466487aecab5aea4d5f58",
-      "0x4e843431cab3757fad3ab3cea444b684ba2a829c29e65ad01f9d123d83045cbb",
-      "0x4ca7a629eec94e2949546de42809e968604c1a9f40c3bc3b7f3d2f02bade8d0b",
-      "0xc1b10f1cb6a0f1ba08174b262e98379eb43e3c335e116fed8505953af5aeb7e9",
-      "0x559af04515e4381823b7db5fac52fb1cf964b6739c742edff576354078e3220c",
-      "0x2b5c867c77e421965a94bd6513ca291e02af1685ce77740b879285af5861539f",
-      "0x855757cb3089df1f6aaa03516e8af86d1ac5cbfa0f78907646f90ebe27d36662",
-      "0x74528f44d404ae16b902961301a23b662240f1d8b0962077f2f0d00e41d54d5b",
-      "0x26dabe81e124dd1f7d0a1858b83aaa0892abb90e0dc8b5eef51c38753b1547c7",
-      "0xc1c0d013d66dead577404c15eeac3e567d9210cbda3d939f7fc1f637e987a2e6",
-      "0xec5708f02ab5c2957ea32e07331d62892c402b760a90503764a01d4b1fec045f",
-      "0x660f6525eb2d196c7d32bf80cbe314aba7df1b44ad97149e2d9a5bd4673f80ba",
-      "0x4f02d256ab1d07d363db26088601cee5baa2aab70e669e860f9b97d3a6d8695a",
-      "0xdbe3dd8be2e092550d1ac52210fe3e4c11a11689f24f855af867306c3834451d",
-      "0x2e0b46e935d1d9f0297df9a032f1b837a8d1259e6b0ee31407db22f225b76e45"
-    ]
+    "eip140Transition": "0x0",
+    "eip211Transition": "0x0",
+    "eip214Transition": "0x0",
+    "eip658Transition": "0x0",
+    "wasmActivationTransition": "0x0",
+    "eip145Transition": "0x0",
+    "eip1014Transition": "0x0",
+    "eip1052Transition": "0x0",
+    "eip1283Transition": "0x0",
+    "kip4Transition": "0x0",
+    "kip6Transition": "0x0",
+    "maxCodeSize": 24576,
+    "maxCodeSizeTransition": "0x0"
   },
   "genesis": {
     "seal": {
@@ -227,9 +169,7 @@
     "enode://d7fc9a3c23f9926321b81ff32ac130bdce185edb7be6fa33375ad18162de1faee894d0e671077e139295cbc609b036804a05d8353ea32b9c963bced2aeda951f@34.193.207.38:30303",
     "enode://16baffd0d7f8ddd77c5ac21902bdb3ae6fa9e17f2449a579e5f2db0b8701e451c7d27225319cb15628791d4d19f3fcb7c2e2c6b8757ab195eb65d7c347c9530c@23.22.141.34:30303",
     "enode://f05c1d338edbfbba711118a4ac8ecc37dba436289ecf86361664ef9fe4659e31f668ff23982e9afcf60e8059b23fa6b0f0bce4e8dcfef3e7507c168d62d4d98b@3.214.59.4:30303",
-    "enode://7d582bb66161906100679e079676f12109e5e73731c28a0d23d7c36ece46acd0a307add1b0c38931441c7dbffd5f0ae5507427523e9e3ea875b1ee43097d5b8d@3.213.32.155:30303",
-    "enode://7b5c615ded974a2c615c0ec204c40441756a003b822e0c1e8d9e54e48d441dd60905326475e591cc846f0ccea6020fc1020a149a96b443a919d86eedd6e879ab@3.214.8.88:30304",
-    "enode://bd37f49b5ad81dbf86f004a50843172d8161ec8446d5bf453ffe40f406cdad329073d4d413c5b7f6326503c2f9dd5c2058a652187e2c27ae309d2a221390c5d9@3.95.88.145:30304",
-    "enode://005bc9bb08a7bd22210742cb596b415cb24d9c7b9c0e69ccddd7aa9c7f8bb2f862d9de20b410fec8abf30e9f54df7341cbfebb8e13bd0d98a5aa6743de45d6ac@34.193.207.38:30304"
+    "enode://7d582bb66161906100679e079676f12109e5e73731c28a0d23d7c36ece46acd0a307add1b0c38931441c7dbffd5f0ae5507427523e9e3ea875b1ee43097d5b8d@3.213.32.155:30303"
   ]
 }
+
diff --git a/networks/nile/config/chain.json b/networks/nile/config/chain.json
index 78c369e..07828b7 100644
--- a/networks/nile/config/chain.json
+++ b/networks/nile/config/chain.json
@@ -5,11 +5,18 @@
       "params": {
         "stepDuration": "5",
         "validators": {
-          "list": [
-            "0xa1345ed0b2d1e193aead673e33dac56515af128a",
-            "0xf4a2dbd5d67ef3019a7e4b188b92128c86d76bf9",
-            "0xcdbe5f61fac89e2cfcfa3727805d5cb8bc4f9afd"
-          ]
+          "multi": {
+            "0": {
+              "list": [
+                "0xa1345ed0b2d1e193aead673e33dac56515af128a",
+                "0xf4a2dbd5d67ef3019a7e4b188b92128c86d76bf9",
+                "0xcdbe5f61fac89e2cfcfa3727805d5cb8bc4f9afd"
+              ]
+            },
+            "1079300": {
+              "safeContract": "0xA060De254f9175D7Fa17DA41434E4920CCa30a2A"
+            }
+          }
         },
         "validateScoreTransition": 1000000000,
         "validateStepTransition": 1500000000,
@@ -22,10 +29,19 @@
     "minGasLimit": "0x1388",
     "networkID": "0x2323",
     "gasLimitBoundDivisor": "0x400",
-    "eip140Transition": 0,
-    "eip211Transition": 0,
-    "eip214Transition": 0,
-    "eip658Transition": 0
+    "eip140Transition": "0x0",
+    "eip211Transition": "0x0",
+    "eip214Transition": "0x0",
+    "eip658Transition": "0x0",
+    "wasmActivationTransition": "1079100",
+    "eip145Transition": "1079100",
+    "eip1014Transition": "1079100",
+    "eip1052Transition": "1079100",
+    "eip1283Transition": "1079100",
+    "kip4Transition": "1079100",
+    "kip6Transition": "1079100",
+    "maxCodeSize": 24576,
+    "maxCodeSizeTransition": "1079100"
   },
   "genesis": {
     "seal": {
@@ -156,3 +172,4 @@
     "enode://6ffb46bfefb6ed24d3626a431b367819c01916272ee10caab791ff19b38e9f7ff904566f6ba83fd24591e66cb3d9ac8b24b8be7e157486b5d23ce0c473c628a4@100.24.158.252:30303"
   ]
 }
+