diff --git a/Cargo.lock b/Cargo.lock
index 931aca08..c24a53ee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2901,6 +2901,7 @@ dependencies = [
  "test_helpers",
  "token",
  "traceable_result",
+ "uint",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 6fbdf298..2468008c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,6 +14,7 @@ ink = { version = "5.0.0", default-features = false }
 token = { path = "src/token", default-features = false, features = [
   "ink-as-dependency",
 ] }
+uint = {version = "0.9.5", default-features = false}
 
 [dev-dependencies]
 ink_e2e = "5.0.0"
@@ -25,7 +26,7 @@ path = "src/lib.rs"
 
 [features]
 default = ["std"]
-std = ["ink/std", "token/std"]
+std = ["ink/std", "token/std", "uint/std"]
 ink-as-dependency = []
 e2e-tests = []
 
diff --git a/sdk/contracts/invariant/invariant.json b/sdk/contracts/invariant/invariant.json
index 8939d7fe..5f4ff477 100644
--- a/sdk/contracts/invariant/invariant.json
+++ b/sdk/contracts/invariant/invariant.json
@@ -1,6 +1,6 @@
 {
   "source": {
-    "hash": "0x86f442ed070586bbb8157cda6fdc259b84f953e62727d779806988f81937cd1f",
+    "hash": "0xe5065094388665399a5388d0b73d0cfca82ffc9680284fcef1eeb053d5a4591f",
     "language": "ink! 5.0.0",
     "compiler": "rustc 1.77.0",
     "build_info": {
@@ -33,6 +33,15 @@
               ],
               "type": 18
             }
+          },
+          {
+            "label": "poc_field",
+            "type": {
+              "displayName": [
+                "PocType"
+              ],
+              "type": 54
+            }
           }
         ],
         "default": false,
@@ -44,7 +53,7 @@
             "ink_primitives",
             "ConstructorResult"
           ],
-          "type": 54
+          "type": 57
         },
         "selector": "0x9bae9d5e"
       }
@@ -73,13 +82,13 @@
         "displayName": [
           "ChainExtension"
         ],
-        "type": 113
+        "type": 116
       },
       "hash": {
         "displayName": [
           "Hash"
         ],
-        "type": 112
+        "type": 115
       },
       "maxEventTopics": 4,
       "staticBufferSize": 16384,
@@ -219,7 +228,7 @@
               "displayName": [
                 "Vec"
               ],
-              "type": 103
+              "type": 106
             }
           }
         ],
@@ -481,7 +490,7 @@
               "displayName": [
                 "Option"
               ],
-              "type": 111
+              "type": 114
             }
           },
           {
@@ -494,7 +503,7 @@
               "displayName": [
                 "Option"
               ],
-              "type": 111
+              "type": 114
             }
           },
           {
@@ -524,7 +533,7 @@
         "ink",
         "LangError"
       ],
-      "type": 55
+      "type": 58
     },
     "messages": [
       {
@@ -539,7 +548,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 56
+          "type": 59
         },
         "selector": "0xe285b69a"
       },
@@ -565,7 +574,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x5a059796"
       },
@@ -591,7 +600,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0xc8bd0f58"
       },
@@ -626,7 +635,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x0ebd3ec6"
       },
@@ -697,7 +706,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 60
+          "type": 63
         },
         "selector": "0x0a1ca76b"
       },
@@ -759,7 +768,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 62
+          "type": 65
         },
         "selector": "0x1c590004"
       },
@@ -798,7 +807,7 @@
               "displayName": [
                 "Vec"
               ],
-              "type": 66
+              "type": 69
             }
           }
         ],
@@ -812,7 +821,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x5ff8d655"
       },
@@ -874,7 +883,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 68
+          "type": 71
         },
         "selector": "0xa2bd3fc7"
       },
@@ -895,7 +904,7 @@
               "displayName": [
                 "Vec"
               ],
-              "type": 66
+              "type": 69
             }
           }
         ],
@@ -909,7 +918,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 71
+          "type": 74
         },
         "selector": "0x879b5256"
       },
@@ -944,7 +953,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0xe5af145a"
       },
@@ -979,7 +988,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 60
+          "type": 63
         },
         "selector": "0xccb84930"
       },
@@ -1005,7 +1014,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 73
+          "type": 76
         },
         "selector": "0xa509d69f"
       },
@@ -1049,7 +1058,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 75
+          "type": 78
         },
         "selector": "0xb2155f6b"
       },
@@ -1075,7 +1084,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 80
+          "type": 83
         },
         "selector": "0x4eb580e1"
       },
@@ -1101,7 +1110,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 80
+          "type": 83
         },
         "selector": "0xfe63d239"
       },
@@ -1127,7 +1136,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x009b6a3d"
       },
@@ -1153,7 +1162,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x3b497d6e"
       },
@@ -1179,7 +1188,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 83
+          "type": 86
         },
         "selector": "0x4e9e07ce"
       },
@@ -1241,7 +1250,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x98b595e9"
       },
@@ -1285,7 +1294,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 84
+          "type": 87
         },
         "selector": "0xf91e4a49"
       },
@@ -1320,7 +1329,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 86
+          "type": 89
         },
         "selector": "0xb62aa10d"
       },
@@ -1355,7 +1364,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 90
+          "type": 93
         },
         "selector": "0xeebd620b"
       },
@@ -1390,7 +1399,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 83
+          "type": 86
         },
         "selector": "0xdbae15e5"
       },
@@ -1425,7 +1434,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 92
+          "type": 95
         },
         "selector": "0x6dd2d776"
       },
@@ -1441,7 +1450,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 96
+          "type": 99
         },
         "selector": "0xd05b6003"
       },
@@ -1476,7 +1485,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 97
+          "type": 100
         },
         "selector": "0xcc9476e7"
       },
@@ -1529,7 +1538,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 100
+          "type": 103
         },
         "selector": "0x3b83b256"
       },
@@ -1550,7 +1559,7 @@
               "displayName": [
                 "Vec"
               ],
-              "type": 103
+              "type": 106
             }
           }
         ],
@@ -1564,7 +1573,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 104
+          "type": 107
         },
         "selector": "0x8ef8d345"
       },
@@ -1590,7 +1599,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 108
+          "type": 111
         },
         "selector": "0xd842f034"
       },
@@ -1634,7 +1643,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 109
+          "type": 112
         },
         "selector": "0xf360dea7"
       },
@@ -1660,7 +1669,7 @@
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x06099ca3"
       }
@@ -2405,6 +2414,41 @@
                         }
                       },
                       "name": "protocol_fee"
+                    },
+                    {
+                      "layout": {
+                        "struct": {
+                          "fields": [
+                            {
+                              "layout": {
+                                "struct": {
+                                  "fields": [
+                                    {
+                                      "layout": {
+                                        "array": {
+                                          "layout": {
+                                            "leaf": {
+                                              "key": "0x00000000",
+                                              "ty": 9
+                                            }
+                                          },
+                                          "len": 4,
+                                          "offset": "0x00000000"
+                                        }
+                                      },
+                                      "name": "0"
+                                    }
+                                  ],
+                                  "name": "U256T"
+                                }
+                              },
+                              "name": "0"
+                            }
+                          ],
+                          "name": "PocType"
+                        }
+                      },
+                      "name": "poc_field"
                     }
                   ],
                   "name": "InvariantConfig"
@@ -3641,6 +3685,11 @@
                 "name": "protocol_fee",
                 "type": 18,
                 "typeName": "<Percentage as::ink::storage::traits::AutoStorableHint<::ink::\nstorage::traits::ManualKey<1271871885u32, ()>,>>::Type"
+              },
+              {
+                "name": "poc_field",
+                "type": 54,
+                "typeName": "<PocType as::ink::storage::traits::AutoStorableHint<::ink::\nstorage::traits::ManualKey<3733198326u32, ()>,>>::Type"
               }
             ]
           }
@@ -3656,6 +3705,61 @@
     },
     {
       "id": 54,
+      "type": {
+        "def": {
+          "composite": {
+            "fields": [
+              {
+                "type": 55,
+                "typeName": "U256T"
+              }
+            ]
+          }
+        },
+        "path": [
+          "invariant",
+          "contracts",
+          "storage",
+          "invariant_config",
+          "PocType"
+        ]
+      }
+    },
+    {
+      "id": 55,
+      "type": {
+        "def": {
+          "composite": {
+            "fields": [
+              {
+                "type": 56,
+                "typeName": "[u64; 4]"
+              }
+            ]
+          }
+        },
+        "path": [
+          "invariant",
+          "contracts",
+          "storage",
+          "invariant_config",
+          "U256T"
+        ]
+      }
+    },
+    {
+      "id": 56,
+      "type": {
+        "def": {
+          "array": {
+            "len": 4,
+            "type": 9
+          }
+        }
+      }
+    },
+    {
+      "id": 57,
       "type": {
         "def": {
           "variant": {
@@ -3672,7 +3776,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -3688,7 +3792,7 @@
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -3697,7 +3801,7 @@
       }
     },
     {
-      "id": 55,
+      "id": 58,
       "type": {
         "def": {
           "variant": {
@@ -3716,7 +3820,7 @@
       }
     },
     {
-      "id": 56,
+      "id": 59,
       "type": {
         "def": {
           "variant": {
@@ -3724,7 +3828,7 @@
               {
                 "fields": [
                   {
-                    "type": 18
+                    "type": 54
                   }
                 ],
                 "index": 0,
@@ -3733,7 +3837,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -3745,11 +3849,11 @@
         "params": [
           {
             "name": "T",
-            "type": 18
+            "type": 54
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -3758,7 +3862,7 @@
       }
     },
     {
-      "id": 57,
+      "id": 60,
       "type": {
         "def": {
           "variant": {
@@ -3766,7 +3870,7 @@
               {
                 "fields": [
                   {
-                    "type": 58
+                    "type": 61
                   }
                 ],
                 "index": 0,
@@ -3775,7 +3879,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -3787,11 +3891,11 @@
         "params": [
           {
             "name": "T",
-            "type": 58
+            "type": 61
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -3800,7 +3904,7 @@
       }
     },
     {
-      "id": 58,
+      "id": 61,
       "type": {
         "def": {
           "variant": {
@@ -3817,7 +3921,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -3833,7 +3937,7 @@
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -3842,7 +3946,7 @@
       }
     },
     {
-      "id": 59,
+      "id": 62,
       "type": {
         "def": {
           "variant": {
@@ -4015,7 +4119,7 @@
       }
     },
     {
-      "id": 60,
+      "id": 63,
       "type": {
         "def": {
           "variant": {
@@ -4023,7 +4127,7 @@
               {
                 "fields": [
                   {
-                    "type": 61
+                    "type": 64
                   }
                 ],
                 "index": 0,
@@ -4032,7 +4136,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4044,11 +4148,11 @@
         "params": [
           {
             "name": "T",
-            "type": 61
+            "type": 64
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4057,7 +4161,7 @@
       }
     },
     {
-      "id": 61,
+      "id": 64,
       "type": {
         "def": {
           "variant": {
@@ -4074,7 +4178,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4090,7 +4194,7 @@
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4099,7 +4203,7 @@
       }
     },
     {
-      "id": 62,
+      "id": 65,
       "type": {
         "def": {
           "variant": {
@@ -4107,7 +4211,7 @@
               {
                 "fields": [
                   {
-                    "type": 63
+                    "type": 66
                   }
                 ],
                 "index": 0,
@@ -4116,7 +4220,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4128,11 +4232,11 @@
         "params": [
           {
             "name": "T",
-            "type": 63
+            "type": 66
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4141,7 +4245,7 @@
       }
     },
     {
-      "id": 63,
+      "id": 66,
       "type": {
         "def": {
           "variant": {
@@ -4149,7 +4253,7 @@
               {
                 "fields": [
                   {
-                    "type": 64
+                    "type": 67
                   }
                 ],
                 "index": 0,
@@ -4158,7 +4262,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4170,11 +4274,11 @@
         "params": [
           {
             "name": "T",
-            "type": 64
+            "type": 67
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4183,7 +4287,7 @@
       }
     },
     {
-      "id": 64,
+      "id": 67,
       "type": {
         "def": {
           "composite": {
@@ -4220,7 +4324,7 @@
               },
               {
                 "name": "ticks",
-                "type": 65,
+                "type": 68,
                 "typeName": "Vec<Tick>"
               }
             ]
@@ -4235,7 +4339,7 @@
       }
     },
     {
-      "id": 65,
+      "id": 68,
       "type": {
         "def": {
           "sequence": {
@@ -4245,17 +4349,17 @@
       }
     },
     {
-      "id": 66,
+      "id": 69,
       "type": {
         "def": {
           "sequence": {
-            "type": 67
+            "type": 70
           }
         }
       }
     },
     {
-      "id": 67,
+      "id": 70,
       "type": {
         "def": {
           "composite": {
@@ -4282,7 +4386,7 @@
       }
     },
     {
-      "id": 68,
+      "id": 71,
       "type": {
         "def": {
           "variant": {
@@ -4290,7 +4394,7 @@
               {
                 "fields": [
                   {
-                    "type": 69
+                    "type": 72
                   }
                 ],
                 "index": 0,
@@ -4299,7 +4403,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4311,11 +4415,11 @@
         "params": [
           {
             "name": "T",
-            "type": 69
+            "type": 72
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4324,7 +4428,7 @@
       }
     },
     {
-      "id": 69,
+      "id": 72,
       "type": {
         "def": {
           "variant": {
@@ -4332,7 +4436,7 @@
               {
                 "fields": [
                   {
-                    "type": 70
+                    "type": 73
                   }
                 ],
                 "index": 0,
@@ -4341,7 +4445,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4353,11 +4457,11 @@
         "params": [
           {
             "name": "T",
-            "type": 70
+            "type": 73
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4366,7 +4470,7 @@
       }
     },
     {
-      "id": 70,
+      "id": 73,
       "type": {
         "def": {
           "composite": {
@@ -4388,7 +4492,7 @@
               },
               {
                 "name": "ticks",
-                "type": 65,
+                "type": 68,
                 "typeName": "Vec<Tick>"
               }
             ]
@@ -4403,7 +4507,7 @@
       }
     },
     {
-      "id": 71,
+      "id": 74,
       "type": {
         "def": {
           "variant": {
@@ -4411,7 +4515,7 @@
               {
                 "fields": [
                   {
-                    "type": 72
+                    "type": 75
                   }
                 ],
                 "index": 0,
@@ -4420,7 +4524,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4432,11 +4536,11 @@
         "params": [
           {
             "name": "T",
-            "type": 72
+            "type": 75
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4445,7 +4549,7 @@
       }
     },
     {
-      "id": 72,
+      "id": 75,
       "type": {
         "def": {
           "variant": {
@@ -4462,7 +4566,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4478,7 +4582,7 @@
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4487,7 +4591,7 @@
       }
     },
     {
-      "id": 73,
+      "id": 76,
       "type": {
         "def": {
           "variant": {
@@ -4495,7 +4599,7 @@
               {
                 "fields": [
                   {
-                    "type": 74
+                    "type": 77
                   }
                 ],
                 "index": 0,
@@ -4504,7 +4608,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4516,11 +4620,11 @@
         "params": [
           {
             "name": "T",
-            "type": 74
+            "type": 77
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4529,7 +4633,7 @@
       }
     },
     {
-      "id": 74,
+      "id": 77,
       "type": {
         "def": {
           "sequence": {
@@ -4539,7 +4643,7 @@
       }
     },
     {
-      "id": 75,
+      "id": 78,
       "type": {
         "def": {
           "variant": {
@@ -4547,7 +4651,7 @@
               {
                 "fields": [
                   {
-                    "type": 76
+                    "type": 79
                   }
                 ],
                 "index": 0,
@@ -4556,7 +4660,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4568,11 +4672,11 @@
         "params": [
           {
             "name": "T",
-            "type": 76
+            "type": 79
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4581,7 +4685,7 @@
       }
     },
     {
-      "id": 76,
+      "id": 79,
       "type": {
         "def": {
           "variant": {
@@ -4589,7 +4693,7 @@
               {
                 "fields": [
                   {
-                    "type": 77
+                    "type": 80
                   }
                 ],
                 "index": 0,
@@ -4598,7 +4702,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4610,11 +4714,11 @@
         "params": [
           {
             "name": "T",
-            "type": 77
+            "type": 80
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4623,28 +4727,28 @@
       }
     },
     {
-      "id": 77,
+      "id": 80,
       "type": {
         "def": {
           "tuple": [
-            78,
+            81,
             0
           ]
         }
       }
     },
     {
-      "id": 78,
+      "id": 81,
       "type": {
         "def": {
           "sequence": {
-            "type": 79
+            "type": 82
           }
         }
       }
     },
     {
-      "id": 79,
+      "id": 82,
       "type": {
         "def": {
           "tuple": [
@@ -4657,7 +4761,7 @@
       }
     },
     {
-      "id": 80,
+      "id": 83,
       "type": {
         "def": {
           "variant": {
@@ -4665,7 +4769,7 @@
               {
                 "fields": [
                   {
-                    "type": 81
+                    "type": 84
                   }
                 ],
                 "index": 0,
@@ -4674,7 +4778,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4686,11 +4790,11 @@
         "params": [
           {
             "name": "T",
-            "type": 81
+            "type": 84
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4699,7 +4803,7 @@
       }
     },
     {
-      "id": 81,
+      "id": 84,
       "type": {
         "def": {
           "variant": {
@@ -4707,7 +4811,7 @@
               {
                 "fields": [
                   {
-                    "type": 82
+                    "type": 85
                   }
                 ],
                 "index": 0,
@@ -4716,7 +4820,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4728,11 +4832,11 @@
         "params": [
           {
             "name": "T",
-            "type": 82
+            "type": 85
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4741,7 +4845,7 @@
       }
     },
     {
-      "id": 82,
+      "id": 85,
       "type": {
         "def": {
           "tuple": [
@@ -4752,7 +4856,7 @@
       }
     },
     {
-      "id": 83,
+      "id": 86,
       "type": {
         "def": {
           "variant": {
@@ -4769,7 +4873,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4785,7 +4889,7 @@
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4794,7 +4898,7 @@
       }
     },
     {
-      "id": 84,
+      "id": 87,
       "type": {
         "def": {
           "variant": {
@@ -4802,7 +4906,7 @@
               {
                 "fields": [
                   {
-                    "type": 85
+                    "type": 88
                   }
                 ],
                 "index": 0,
@@ -4811,7 +4915,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4823,11 +4927,11 @@
         "params": [
           {
             "name": "T",
-            "type": 85
+            "type": 88
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4836,7 +4940,7 @@
       }
     },
     {
-      "id": 85,
+      "id": 88,
       "type": {
         "def": {
           "variant": {
@@ -4853,7 +4957,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4869,7 +4973,7 @@
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4878,7 +4982,7 @@
       }
     },
     {
-      "id": 86,
+      "id": 89,
       "type": {
         "def": {
           "variant": {
@@ -4886,7 +4990,7 @@
               {
                 "fields": [
                   {
-                    "type": 87
+                    "type": 90
                   }
                 ],
                 "index": 0,
@@ -4895,7 +4999,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4907,11 +5011,11 @@
         "params": [
           {
             "name": "T",
-            "type": 87
+            "type": 90
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4920,7 +5024,7 @@
       }
     },
     {
-      "id": 87,
+      "id": 90,
       "type": {
         "def": {
           "variant": {
@@ -4928,7 +5032,7 @@
               {
                 "fields": [
                   {
-                    "type": 88
+                    "type": 91
                   }
                 ],
                 "index": 0,
@@ -4937,7 +5041,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4949,11 +5053,11 @@
         "params": [
           {
             "name": "T",
-            "type": 88
+            "type": 91
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4962,17 +5066,17 @@
       }
     },
     {
-      "id": 88,
+      "id": 91,
       "type": {
         "def": {
           "sequence": {
-            "type": 89
+            "type": 92
           }
         }
       }
     },
     {
-      "id": 89,
+      "id": 92,
       "type": {
         "def": {
           "tuple": [
@@ -4983,7 +5087,7 @@
       }
     },
     {
-      "id": 90,
+      "id": 93,
       "type": {
         "def": {
           "variant": {
@@ -4991,7 +5095,7 @@
               {
                 "fields": [
                   {
-                    "type": 91
+                    "type": 94
                   }
                 ],
                 "index": 0,
@@ -5000,7 +5104,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5012,11 +5116,11 @@
         "params": [
           {
             "name": "T",
-            "type": 91
+            "type": 94
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5025,7 +5129,7 @@
       }
     },
     {
-      "id": 91,
+      "id": 94,
       "type": {
         "def": {
           "variant": {
@@ -5042,7 +5146,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -5058,7 +5162,7 @@
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -5067,7 +5171,7 @@
       }
     },
     {
-      "id": 92,
+      "id": 95,
       "type": {
         "def": {
           "variant": {
@@ -5075,7 +5179,7 @@
               {
                 "fields": [
                   {
-                    "type": 93
+                    "type": 96
                   }
                 ],
                 "index": 0,
@@ -5084,7 +5188,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5096,11 +5200,11 @@
         "params": [
           {
             "name": "T",
-            "type": 93
+            "type": 96
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5109,7 +5213,7 @@
       }
     },
     {
-      "id": 93,
+      "id": 96,
       "type": {
         "def": {
           "variant": {
@@ -5117,7 +5221,7 @@
               {
                 "fields": [
                   {
-                    "type": 94
+                    "type": 97
                   }
                 ],
                 "index": 0,
@@ -5126,7 +5230,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -5138,11 +5242,11 @@
         "params": [
           {
             "name": "T",
-            "type": 94
+            "type": 97
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -5151,18 +5255,18 @@
       }
     },
     {
-      "id": 94,
+      "id": 97,
       "type": {
         "def": {
           "tuple": [
-            95,
+            98,
             10
           ]
         }
       }
     },
     {
-      "id": 95,
+      "id": 98,
       "type": {
         "def": {
           "sequence": {
@@ -5172,7 +5276,7 @@
       }
     },
     {
-      "id": 96,
+      "id": 99,
       "type": {
         "def": {
           "variant": {
@@ -5189,7 +5293,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5205,7 +5309,7 @@
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5214,7 +5318,7 @@
       }
     },
     {
-      "id": 97,
+      "id": 100,
       "type": {
         "def": {
           "variant": {
@@ -5222,7 +5326,7 @@
               {
                 "fields": [
                   {
-                    "type": 98
+                    "type": 101
                   }
                 ],
                 "index": 0,
@@ -5231,7 +5335,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5243,11 +5347,11 @@
         "params": [
           {
             "name": "T",
-            "type": 98
+            "type": 101
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5256,17 +5360,17 @@
       }
     },
     {
-      "id": 98,
+      "id": 101,
       "type": {
         "def": {
           "sequence": {
-            "type": 99
+            "type": 102
           }
         }
       }
     },
     {
-      "id": 99,
+      "id": 102,
       "type": {
         "def": {
           "composite": {
@@ -5304,7 +5408,7 @@
       }
     },
     {
-      "id": 100,
+      "id": 103,
       "type": {
         "def": {
           "variant": {
@@ -5312,7 +5416,7 @@
               {
                 "fields": [
                   {
-                    "type": 101
+                    "type": 104
                   }
                 ],
                 "index": 0,
@@ -5321,7 +5425,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5333,11 +5437,11 @@
         "params": [
           {
             "name": "T",
-            "type": 101
+            "type": 104
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5346,17 +5450,17 @@
       }
     },
     {
-      "id": 101,
+      "id": 104,
       "type": {
         "def": {
           "sequence": {
-            "type": 102
+            "type": 105
           }
         }
       }
     },
     {
-      "id": 102,
+      "id": 105,
       "type": {
         "def": {
           "tuple": [
@@ -5367,7 +5471,7 @@
       }
     },
     {
-      "id": 103,
+      "id": 106,
       "type": {
         "def": {
           "sequence": {
@@ -5377,7 +5481,7 @@
       }
     },
     {
-      "id": 104,
+      "id": 107,
       "type": {
         "def": {
           "variant": {
@@ -5385,7 +5489,7 @@
               {
                 "fields": [
                   {
-                    "type": 105
+                    "type": 108
                   }
                 ],
                 "index": 0,
@@ -5394,7 +5498,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5406,11 +5510,11 @@
         "params": [
           {
             "name": "T",
-            "type": 105
+            "type": 108
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5419,7 +5523,7 @@
       }
     },
     {
-      "id": 105,
+      "id": 108,
       "type": {
         "def": {
           "variant": {
@@ -5427,7 +5531,7 @@
               {
                 "fields": [
                   {
-                    "type": 106
+                    "type": 109
                   }
                 ],
                 "index": 0,
@@ -5436,7 +5540,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -5448,11 +5552,11 @@
         "params": [
           {
             "name": "T",
-            "type": 106
+            "type": 109
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -5461,17 +5565,17 @@
       }
     },
     {
-      "id": 106,
+      "id": 109,
       "type": {
         "def": {
           "sequence": {
-            "type": 107
+            "type": 110
           }
         }
       }
     },
     {
-      "id": 107,
+      "id": 110,
       "type": {
         "def": {
           "composite": {
@@ -5504,7 +5608,7 @@
       }
     },
     {
-      "id": 108,
+      "id": 111,
       "type": {
         "def": {
           "variant": {
@@ -5521,7 +5625,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5537,7 +5641,7 @@
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5546,7 +5650,7 @@
       }
     },
     {
-      "id": 109,
+      "id": 112,
       "type": {
         "def": {
           "variant": {
@@ -5554,7 +5658,7 @@
               {
                 "fields": [
                   {
-                    "type": 110
+                    "type": 113
                   }
                 ],
                 "index": 0,
@@ -5563,7 +5667,7 @@
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5575,11 +5679,11 @@
         "params": [
           {
             "name": "T",
-            "type": 110
+            "type": 113
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5588,7 +5692,7 @@
       }
     },
     {
-      "id": 110,
+      "id": 113,
       "type": {
         "def": {
           "variant": {
@@ -5605,7 +5709,7 @@
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -5621,7 +5725,7 @@
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -5630,7 +5734,7 @@
       }
     },
     {
-      "id": 111,
+      "id": 114,
       "type": {
         "def": {
           "variant": {
@@ -5663,7 +5767,7 @@
       }
     },
     {
-      "id": 112,
+      "id": 115,
       "type": {
         "def": {
           "composite": {
@@ -5683,7 +5787,7 @@
       }
     },
     {
-      "id": 113,
+      "id": 116,
       "type": {
         "def": {
           "variant": {}
diff --git a/sdk/contracts/invariant/invariant.wasm b/sdk/contracts/invariant/invariant.wasm
index 98751cd2..29ef3405 100644
Binary files a/sdk/contracts/invariant/invariant.wasm and b/sdk/contracts/invariant/invariant.wasm differ
diff --git a/sdk/contracts/psp22/psp22.json b/sdk/contracts/psp22/psp22.json
index 9d94e68b..e812d7ef 100644
--- a/sdk/contracts/psp22/psp22.json
+++ b/sdk/contracts/psp22/psp22.json
@@ -1,6 +1,6 @@
 {
   "source": {
-    "hash": "0xb4082b7d4aedb8479925aa96a383ea722dc1a7e9b29ad5a4d5f95ad707db4e09",
+    "hash": "0xb4a6778b80073e24c68d7aafad474beed429019761b4e2ba5786359aede38ed7",
     "language": "ink! 5.0.0",
     "compiler": "rustc 1.77.0",
     "build_info": {
diff --git a/sdk/contracts/psp22/psp22.wasm b/sdk/contracts/psp22/psp22.wasm
index f4950a15..1cfb90c9 100644
Binary files a/sdk/contracts/psp22/psp22.wasm and b/sdk/contracts/psp22/psp22.wasm differ
diff --git a/sdk/src/abis/invariant.ts b/sdk/src/abis/invariant.ts
index 164539be..896d139b 100644
--- a/sdk/src/abis/invariant.ts
+++ b/sdk/src/abis/invariant.ts
@@ -1,7 +1,7 @@
 export const abi = `
 {
   "source": {
-    "hash": "0x86f442ed070586bbb8157cda6fdc259b84f953e62727d779806988f81937cd1f",
+    "hash": "0xe5065094388665399a5388d0b73d0cfca82ffc9680284fcef1eeb053d5a4591f",
     "language": "ink! 5.0.0",
     "compiler": "rustc 1.77.0",
     "build_info": {
@@ -34,6 +34,15 @@ export const abi = `
               ],
               "type": 18
             }
+          },
+          {
+            "label": "poc_field",
+            "type": {
+              "displayName": [
+                "PocType"
+              ],
+              "type": 54
+            }
           }
         ],
         "default": false,
@@ -45,7 +54,7 @@ export const abi = `
             "ink_primitives",
             "ConstructorResult"
           ],
-          "type": 54
+          "type": 57
         },
         "selector": "0x9bae9d5e"
       }
@@ -74,13 +83,13 @@ export const abi = `
         "displayName": [
           "ChainExtension"
         ],
-        "type": 113
+        "type": 116
       },
       "hash": {
         "displayName": [
           "Hash"
         ],
-        "type": 112
+        "type": 115
       },
       "maxEventTopics": 4,
       "staticBufferSize": 16384,
@@ -220,7 +229,7 @@ export const abi = `
               "displayName": [
                 "Vec"
               ],
-              "type": 103
+              "type": 106
             }
           }
         ],
@@ -482,7 +491,7 @@ export const abi = `
               "displayName": [
                 "Option"
               ],
-              "type": 111
+              "type": 114
             }
           },
           {
@@ -495,7 +504,7 @@ export const abi = `
               "displayName": [
                 "Option"
               ],
-              "type": 111
+              "type": 114
             }
           },
           {
@@ -525,7 +534,7 @@ export const abi = `
         "ink",
         "LangError"
       ],
-      "type": 55
+      "type": 58
     },
     "messages": [
       {
@@ -540,7 +549,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 56
+          "type": 59
         },
         "selector": "0xe285b69a"
       },
@@ -566,7 +575,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x5a059796"
       },
@@ -592,7 +601,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0xc8bd0f58"
       },
@@ -627,7 +636,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x0ebd3ec6"
       },
@@ -698,7 +707,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 60
+          "type": 63
         },
         "selector": "0x0a1ca76b"
       },
@@ -760,7 +769,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 62
+          "type": 65
         },
         "selector": "0x1c590004"
       },
@@ -799,7 +808,7 @@ export const abi = `
               "displayName": [
                 "Vec"
               ],
-              "type": 66
+              "type": 69
             }
           }
         ],
@@ -813,7 +822,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x5ff8d655"
       },
@@ -875,7 +884,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 68
+          "type": 71
         },
         "selector": "0xa2bd3fc7"
       },
@@ -896,7 +905,7 @@ export const abi = `
               "displayName": [
                 "Vec"
               ],
-              "type": 66
+              "type": 69
             }
           }
         ],
@@ -910,7 +919,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 71
+          "type": 74
         },
         "selector": "0x879b5256"
       },
@@ -945,7 +954,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0xe5af145a"
       },
@@ -980,7 +989,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 60
+          "type": 63
         },
         "selector": "0xccb84930"
       },
@@ -1006,7 +1015,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 73
+          "type": 76
         },
         "selector": "0xa509d69f"
       },
@@ -1050,7 +1059,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 75
+          "type": 78
         },
         "selector": "0xb2155f6b"
       },
@@ -1076,7 +1085,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 80
+          "type": 83
         },
         "selector": "0x4eb580e1"
       },
@@ -1102,7 +1111,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 80
+          "type": 83
         },
         "selector": "0xfe63d239"
       },
@@ -1128,7 +1137,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x009b6a3d"
       },
@@ -1154,7 +1163,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x3b497d6e"
       },
@@ -1180,7 +1189,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 83
+          "type": 86
         },
         "selector": "0x4e9e07ce"
       },
@@ -1242,7 +1251,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x98b595e9"
       },
@@ -1286,7 +1295,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 84
+          "type": 87
         },
         "selector": "0xf91e4a49"
       },
@@ -1321,7 +1330,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 86
+          "type": 89
         },
         "selector": "0xb62aa10d"
       },
@@ -1356,7 +1365,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 90
+          "type": 93
         },
         "selector": "0xeebd620b"
       },
@@ -1391,7 +1400,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 83
+          "type": 86
         },
         "selector": "0xdbae15e5"
       },
@@ -1426,7 +1435,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 92
+          "type": 95
         },
         "selector": "0x6dd2d776"
       },
@@ -1442,7 +1451,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 96
+          "type": 99
         },
         "selector": "0xd05b6003"
       },
@@ -1477,7 +1486,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 97
+          "type": 100
         },
         "selector": "0xcc9476e7"
       },
@@ -1530,7 +1539,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 100
+          "type": 103
         },
         "selector": "0x3b83b256"
       },
@@ -1551,7 +1560,7 @@ export const abi = `
               "displayName": [
                 "Vec"
               ],
-              "type": 103
+              "type": 106
             }
           }
         ],
@@ -1565,7 +1574,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 104
+          "type": 107
         },
         "selector": "0x8ef8d345"
       },
@@ -1591,7 +1600,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 108
+          "type": 111
         },
         "selector": "0xd842f034"
       },
@@ -1635,7 +1644,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 109
+          "type": 112
         },
         "selector": "0xf360dea7"
       },
@@ -1661,7 +1670,7 @@ export const abi = `
             "ink",
             "MessageResult"
           ],
-          "type": 57
+          "type": 60
         },
         "selector": "0x06099ca3"
       }
@@ -2406,6 +2415,41 @@ export const abi = `
                         }
                       },
                       "name": "protocol_fee"
+                    },
+                    {
+                      "layout": {
+                        "struct": {
+                          "fields": [
+                            {
+                              "layout": {
+                                "struct": {
+                                  "fields": [
+                                    {
+                                      "layout": {
+                                        "array": {
+                                          "layout": {
+                                            "leaf": {
+                                              "key": "0x00000000",
+                                              "ty": 9
+                                            }
+                                          },
+                                          "len": 4,
+                                          "offset": "0x00000000"
+                                        }
+                                      },
+                                      "name": "0"
+                                    }
+                                  ],
+                                  "name": "U256T"
+                                }
+                              },
+                              "name": "0"
+                            }
+                          ],
+                          "name": "PocType"
+                        }
+                      },
+                      "name": "poc_field"
                     }
                   ],
                   "name": "InvariantConfig"
@@ -3642,6 +3686,11 @@ export const abi = `
                 "name": "protocol_fee",
                 "type": 18,
                 "typeName": "<Percentage as::ink::storage::traits::AutoStorableHint<::ink::storage::traits::ManualKey<1271871885u32, ()>,>>::Type"
+              },
+              {
+                "name": "poc_field",
+                "type": 54,
+                "typeName": "<PocType as::ink::storage::traits::AutoStorableHint<::ink::storage::traits::ManualKey<3733198326u32, ()>,>>::Type"
               }
             ]
           }
@@ -3657,6 +3706,61 @@ export const abi = `
     },
     {
       "id": 54,
+      "type": {
+        "def": {
+          "composite": {
+            "fields": [
+              {
+                "type": 55,
+                "typeName": "U256T"
+              }
+            ]
+          }
+        },
+        "path": [
+          "invariant",
+          "contracts",
+          "storage",
+          "invariant_config",
+          "PocType"
+        ]
+      }
+    },
+    {
+      "id": 55,
+      "type": {
+        "def": {
+          "composite": {
+            "fields": [
+              {
+                "type": 56,
+                "typeName": "[u64; 4]"
+              }
+            ]
+          }
+        },
+        "path": [
+          "invariant",
+          "contracts",
+          "storage",
+          "invariant_config",
+          "U256T"
+        ]
+      }
+    },
+    {
+      "id": 56,
+      "type": {
+        "def": {
+          "array": {
+            "len": 4,
+            "type": 9
+          }
+        }
+      }
+    },
+    {
+      "id": 57,
       "type": {
         "def": {
           "variant": {
@@ -3673,7 +3777,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -3689,7 +3793,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -3698,7 +3802,7 @@ export const abi = `
       }
     },
     {
-      "id": 55,
+      "id": 58,
       "type": {
         "def": {
           "variant": {
@@ -3717,7 +3821,7 @@ export const abi = `
       }
     },
     {
-      "id": 56,
+      "id": 59,
       "type": {
         "def": {
           "variant": {
@@ -3725,7 +3829,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 18
+                    "type": 54
                   }
                 ],
                 "index": 0,
@@ -3734,7 +3838,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -3746,11 +3850,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 18
+            "type": 54
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -3759,7 +3863,7 @@ export const abi = `
       }
     },
     {
-      "id": 57,
+      "id": 60,
       "type": {
         "def": {
           "variant": {
@@ -3767,7 +3871,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 58
+                    "type": 61
                   }
                 ],
                 "index": 0,
@@ -3776,7 +3880,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -3788,11 +3892,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 58
+            "type": 61
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -3801,7 +3905,7 @@ export const abi = `
       }
     },
     {
-      "id": 58,
+      "id": 61,
       "type": {
         "def": {
           "variant": {
@@ -3818,7 +3922,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -3834,7 +3938,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -3843,7 +3947,7 @@ export const abi = `
       }
     },
     {
-      "id": 59,
+      "id": 62,
       "type": {
         "def": {
           "variant": {
@@ -4016,7 +4120,7 @@ export const abi = `
       }
     },
     {
-      "id": 60,
+      "id": 63,
       "type": {
         "def": {
           "variant": {
@@ -4024,7 +4128,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 61
+                    "type": 64
                   }
                 ],
                 "index": 0,
@@ -4033,7 +4137,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4045,11 +4149,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 61
+            "type": 64
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4058,7 +4162,7 @@ export const abi = `
       }
     },
     {
-      "id": 61,
+      "id": 64,
       "type": {
         "def": {
           "variant": {
@@ -4075,7 +4179,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4091,7 +4195,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4100,7 +4204,7 @@ export const abi = `
       }
     },
     {
-      "id": 62,
+      "id": 65,
       "type": {
         "def": {
           "variant": {
@@ -4108,7 +4212,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 63
+                    "type": 66
                   }
                 ],
                 "index": 0,
@@ -4117,7 +4221,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4129,11 +4233,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 63
+            "type": 66
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4142,7 +4246,7 @@ export const abi = `
       }
     },
     {
-      "id": 63,
+      "id": 66,
       "type": {
         "def": {
           "variant": {
@@ -4150,7 +4254,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 64
+                    "type": 67
                   }
                 ],
                 "index": 0,
@@ -4159,7 +4263,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4171,11 +4275,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 64
+            "type": 67
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4184,7 +4288,7 @@ export const abi = `
       }
     },
     {
-      "id": 64,
+      "id": 67,
       "type": {
         "def": {
           "composite": {
@@ -4221,7 +4325,7 @@ export const abi = `
               },
               {
                 "name": "ticks",
-                "type": 65,
+                "type": 68,
                 "typeName": "Vec<Tick>"
               }
             ]
@@ -4236,7 +4340,7 @@ export const abi = `
       }
     },
     {
-      "id": 65,
+      "id": 68,
       "type": {
         "def": {
           "sequence": {
@@ -4246,17 +4350,17 @@ export const abi = `
       }
     },
     {
-      "id": 66,
+      "id": 69,
       "type": {
         "def": {
           "sequence": {
-            "type": 67
+            "type": 70
           }
         }
       }
     },
     {
-      "id": 67,
+      "id": 70,
       "type": {
         "def": {
           "composite": {
@@ -4283,7 +4387,7 @@ export const abi = `
       }
     },
     {
-      "id": 68,
+      "id": 71,
       "type": {
         "def": {
           "variant": {
@@ -4291,7 +4395,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 69
+                    "type": 72
                   }
                 ],
                 "index": 0,
@@ -4300,7 +4404,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4312,11 +4416,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 69
+            "type": 72
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4325,7 +4429,7 @@ export const abi = `
       }
     },
     {
-      "id": 69,
+      "id": 72,
       "type": {
         "def": {
           "variant": {
@@ -4333,7 +4437,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 70
+                    "type": 73
                   }
                 ],
                 "index": 0,
@@ -4342,7 +4446,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4354,11 +4458,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 70
+            "type": 73
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4367,7 +4471,7 @@ export const abi = `
       }
     },
     {
-      "id": 70,
+      "id": 73,
       "type": {
         "def": {
           "composite": {
@@ -4389,7 +4493,7 @@ export const abi = `
               },
               {
                 "name": "ticks",
-                "type": 65,
+                "type": 68,
                 "typeName": "Vec<Tick>"
               }
             ]
@@ -4404,7 +4508,7 @@ export const abi = `
       }
     },
     {
-      "id": 71,
+      "id": 74,
       "type": {
         "def": {
           "variant": {
@@ -4412,7 +4516,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 72
+                    "type": 75
                   }
                 ],
                 "index": 0,
@@ -4421,7 +4525,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4433,11 +4537,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 72
+            "type": 75
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4446,7 +4550,7 @@ export const abi = `
       }
     },
     {
-      "id": 72,
+      "id": 75,
       "type": {
         "def": {
           "variant": {
@@ -4463,7 +4567,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4479,7 +4583,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4488,7 +4592,7 @@ export const abi = `
       }
     },
     {
-      "id": 73,
+      "id": 76,
       "type": {
         "def": {
           "variant": {
@@ -4496,7 +4600,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 74
+                    "type": 77
                   }
                 ],
                 "index": 0,
@@ -4505,7 +4609,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4517,11 +4621,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 74
+            "type": 77
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4530,7 +4634,7 @@ export const abi = `
       }
     },
     {
-      "id": 74,
+      "id": 77,
       "type": {
         "def": {
           "sequence": {
@@ -4540,7 +4644,7 @@ export const abi = `
       }
     },
     {
-      "id": 75,
+      "id": 78,
       "type": {
         "def": {
           "variant": {
@@ -4548,7 +4652,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 76
+                    "type": 79
                   }
                 ],
                 "index": 0,
@@ -4557,7 +4661,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4569,11 +4673,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 76
+            "type": 79
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4582,7 +4686,7 @@ export const abi = `
       }
     },
     {
-      "id": 76,
+      "id": 79,
       "type": {
         "def": {
           "variant": {
@@ -4590,7 +4694,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 77
+                    "type": 80
                   }
                 ],
                 "index": 0,
@@ -4599,7 +4703,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4611,11 +4715,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 77
+            "type": 80
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4624,28 +4728,28 @@ export const abi = `
       }
     },
     {
-      "id": 77,
+      "id": 80,
       "type": {
         "def": {
           "tuple": [
-            78,
+            81,
             0
           ]
         }
       }
     },
     {
-      "id": 78,
+      "id": 81,
       "type": {
         "def": {
           "sequence": {
-            "type": 79
+            "type": 82
           }
         }
       }
     },
     {
-      "id": 79,
+      "id": 82,
       "type": {
         "def": {
           "tuple": [
@@ -4658,7 +4762,7 @@ export const abi = `
       }
     },
     {
-      "id": 80,
+      "id": 83,
       "type": {
         "def": {
           "variant": {
@@ -4666,7 +4770,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 81
+                    "type": 84
                   }
                 ],
                 "index": 0,
@@ -4675,7 +4779,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4687,11 +4791,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 81
+            "type": 84
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4700,7 +4804,7 @@ export const abi = `
       }
     },
     {
-      "id": 81,
+      "id": 84,
       "type": {
         "def": {
           "variant": {
@@ -4708,7 +4812,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 82
+                    "type": 85
                   }
                 ],
                 "index": 0,
@@ -4717,7 +4821,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4729,11 +4833,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 82
+            "type": 85
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4742,7 +4846,7 @@ export const abi = `
       }
     },
     {
-      "id": 82,
+      "id": 85,
       "type": {
         "def": {
           "tuple": [
@@ -4753,7 +4857,7 @@ export const abi = `
       }
     },
     {
-      "id": 83,
+      "id": 86,
       "type": {
         "def": {
           "variant": {
@@ -4770,7 +4874,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4786,7 +4890,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4795,7 +4899,7 @@ export const abi = `
       }
     },
     {
-      "id": 84,
+      "id": 87,
       "type": {
         "def": {
           "variant": {
@@ -4803,7 +4907,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 85
+                    "type": 88
                   }
                 ],
                 "index": 0,
@@ -4812,7 +4916,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4824,11 +4928,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 85
+            "type": 88
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4837,7 +4941,7 @@ export const abi = `
       }
     },
     {
-      "id": 85,
+      "id": 88,
       "type": {
         "def": {
           "variant": {
@@ -4854,7 +4958,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4870,7 +4974,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4879,7 +4983,7 @@ export const abi = `
       }
     },
     {
-      "id": 86,
+      "id": 89,
       "type": {
         "def": {
           "variant": {
@@ -4887,7 +4991,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 87
+                    "type": 90
                   }
                 ],
                 "index": 0,
@@ -4896,7 +5000,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -4908,11 +5012,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 87
+            "type": 90
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -4921,7 +5025,7 @@ export const abi = `
       }
     },
     {
-      "id": 87,
+      "id": 90,
       "type": {
         "def": {
           "variant": {
@@ -4929,7 +5033,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 88
+                    "type": 91
                   }
                 ],
                 "index": 0,
@@ -4938,7 +5042,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -4950,11 +5054,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 88
+            "type": 91
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -4963,17 +5067,17 @@ export const abi = `
       }
     },
     {
-      "id": 88,
+      "id": 91,
       "type": {
         "def": {
           "sequence": {
-            "type": 89
+            "type": 92
           }
         }
       }
     },
     {
-      "id": 89,
+      "id": 92,
       "type": {
         "def": {
           "tuple": [
@@ -4984,7 +5088,7 @@ export const abi = `
       }
     },
     {
-      "id": 90,
+      "id": 93,
       "type": {
         "def": {
           "variant": {
@@ -4992,7 +5096,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 91
+                    "type": 94
                   }
                 ],
                 "index": 0,
@@ -5001,7 +5105,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5013,11 +5117,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 91
+            "type": 94
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5026,7 +5130,7 @@ export const abi = `
       }
     },
     {
-      "id": 91,
+      "id": 94,
       "type": {
         "def": {
           "variant": {
@@ -5043,7 +5147,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -5059,7 +5163,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -5068,7 +5172,7 @@ export const abi = `
       }
     },
     {
-      "id": 92,
+      "id": 95,
       "type": {
         "def": {
           "variant": {
@@ -5076,7 +5180,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 93
+                    "type": 96
                   }
                 ],
                 "index": 0,
@@ -5085,7 +5189,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5097,11 +5201,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 93
+            "type": 96
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5110,7 +5214,7 @@ export const abi = `
       }
     },
     {
-      "id": 93,
+      "id": 96,
       "type": {
         "def": {
           "variant": {
@@ -5118,7 +5222,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 94
+                    "type": 97
                   }
                 ],
                 "index": 0,
@@ -5127,7 +5231,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -5139,11 +5243,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 94
+            "type": 97
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -5152,18 +5256,18 @@ export const abi = `
       }
     },
     {
-      "id": 94,
+      "id": 97,
       "type": {
         "def": {
           "tuple": [
-            95,
+            98,
             10
           ]
         }
       }
     },
     {
-      "id": 95,
+      "id": 98,
       "type": {
         "def": {
           "sequence": {
@@ -5173,7 +5277,7 @@ export const abi = `
       }
     },
     {
-      "id": 96,
+      "id": 99,
       "type": {
         "def": {
           "variant": {
@@ -5190,7 +5294,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5206,7 +5310,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5215,7 +5319,7 @@ export const abi = `
       }
     },
     {
-      "id": 97,
+      "id": 100,
       "type": {
         "def": {
           "variant": {
@@ -5223,7 +5327,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 98
+                    "type": 101
                   }
                 ],
                 "index": 0,
@@ -5232,7 +5336,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5244,11 +5348,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 98
+            "type": 101
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5257,17 +5361,17 @@ export const abi = `
       }
     },
     {
-      "id": 98,
+      "id": 101,
       "type": {
         "def": {
           "sequence": {
-            "type": 99
+            "type": 102
           }
         }
       }
     },
     {
-      "id": 99,
+      "id": 102,
       "type": {
         "def": {
           "composite": {
@@ -5305,7 +5409,7 @@ export const abi = `
       }
     },
     {
-      "id": 100,
+      "id": 103,
       "type": {
         "def": {
           "variant": {
@@ -5313,7 +5417,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 101
+                    "type": 104
                   }
                 ],
                 "index": 0,
@@ -5322,7 +5426,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5334,11 +5438,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 101
+            "type": 104
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5347,17 +5451,17 @@ export const abi = `
       }
     },
     {
-      "id": 101,
+      "id": 104,
       "type": {
         "def": {
           "sequence": {
-            "type": 102
+            "type": 105
           }
         }
       }
     },
     {
-      "id": 102,
+      "id": 105,
       "type": {
         "def": {
           "tuple": [
@@ -5368,7 +5472,7 @@ export const abi = `
       }
     },
     {
-      "id": 103,
+      "id": 106,
       "type": {
         "def": {
           "sequence": {
@@ -5378,7 +5482,7 @@ export const abi = `
       }
     },
     {
-      "id": 104,
+      "id": 107,
       "type": {
         "def": {
           "variant": {
@@ -5386,7 +5490,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 105
+                    "type": 108
                   }
                 ],
                 "index": 0,
@@ -5395,7 +5499,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5407,11 +5511,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 105
+            "type": 108
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5420,7 +5524,7 @@ export const abi = `
       }
     },
     {
-      "id": 105,
+      "id": 108,
       "type": {
         "def": {
           "variant": {
@@ -5428,7 +5532,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 106
+                    "type": 109
                   }
                 ],
                 "index": 0,
@@ -5437,7 +5541,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -5449,11 +5553,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 106
+            "type": 109
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -5462,17 +5566,17 @@ export const abi = `
       }
     },
     {
-      "id": 106,
+      "id": 109,
       "type": {
         "def": {
           "sequence": {
-            "type": 107
+            "type": 110
           }
         }
       }
     },
     {
-      "id": 107,
+      "id": 110,
       "type": {
         "def": {
           "composite": {
@@ -5505,7 +5609,7 @@ export const abi = `
       }
     },
     {
-      "id": 108,
+      "id": 111,
       "type": {
         "def": {
           "variant": {
@@ -5522,7 +5626,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5538,7 +5642,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5547,7 +5651,7 @@ export const abi = `
       }
     },
     {
-      "id": 109,
+      "id": 112,
       "type": {
         "def": {
           "variant": {
@@ -5555,7 +5659,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 110
+                    "type": 113
                   }
                 ],
                 "index": 0,
@@ -5564,7 +5668,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 55
+                    "type": 58
                   }
                 ],
                 "index": 1,
@@ -5576,11 +5680,11 @@ export const abi = `
         "params": [
           {
             "name": "T",
-            "type": 110
+            "type": 113
           },
           {
             "name": "E",
-            "type": 55
+            "type": 58
           }
         ],
         "path": [
@@ -5589,7 +5693,7 @@ export const abi = `
       }
     },
     {
-      "id": 110,
+      "id": 113,
       "type": {
         "def": {
           "variant": {
@@ -5606,7 +5710,7 @@ export const abi = `
               {
                 "fields": [
                   {
-                    "type": 59
+                    "type": 62
                   }
                 ],
                 "index": 1,
@@ -5622,7 +5726,7 @@ export const abi = `
           },
           {
             "name": "E",
-            "type": 59
+            "type": 62
           }
         ],
         "path": [
@@ -5631,7 +5735,7 @@ export const abi = `
       }
     },
     {
-      "id": 111,
+      "id": 114,
       "type": {
         "def": {
           "variant": {
@@ -5664,7 +5768,7 @@ export const abi = `
       }
     },
     {
-      "id": 112,
+      "id": 115,
       "type": {
         "def": {
           "composite": {
@@ -5684,7 +5788,7 @@ export const abi = `
       }
     },
     {
-      "id": 113,
+      "id": 116,
       "type": {
         "def": {
           "variant": {}
diff --git a/sdk/src/abis/psp22.ts b/sdk/src/abis/psp22.ts
index 5e314bf1..5c9af541 100644
--- a/sdk/src/abis/psp22.ts
+++ b/sdk/src/abis/psp22.ts
@@ -1,7 +1,7 @@
 export const abi = `
 {
   "source": {
-    "hash": "0xb4082b7d4aedb8479925aa96a383ea722dc1a7e9b29ad5a4d5f95ad707db4e09",
+    "hash": "0xb4a6778b80073e24c68d7aafad474beed429019761b4e2ba5786359aede38ed7",
     "language": "ink! 5.0.0",
     "compiler": "rustc 1.77.0",
     "build_info": {
diff --git a/sdk/src/invariant.ts b/sdk/src/invariant.ts
index 838f0979..2d35ea70 100644
--- a/sdk/src/invariant.ts
+++ b/sdk/src/invariant.ts
@@ -1,10 +1,5 @@
 /* eslint camelcase: off */
 
-import { ApiPromise } from '@polkadot/api'
-import { Abi, ContractPromise } from '@polkadot/api-contract'
-import { WeightV2 } from '@polkadot/types/interfaces'
-import { IKeyringPair } from '@polkadot/types/types/interfaces'
-import { deployContract } from '@scio-labs/use-inkathon'
 import {
   FeeTier,
   InvariantError,
@@ -25,6 +20,12 @@ import {
   getMaxSqrtPrice,
   getMinSqrtPrice
 } from '@invariant-labs/a0-sdk-wasm/invariant_a0_wasm.js'
+import { ApiPromise } from '@polkadot/api'
+import { Abi, ContractPromise } from '@polkadot/api-contract'
+import { SubmittableExtrinsic } from '@polkadot/api/types/submittable'
+import { WeightV2 } from '@polkadot/types/interfaces'
+import { IKeyringPair } from '@polkadot/types/types/interfaces'
+import { deployContract } from '@scio-labs/use-inkathon'
 import {
   CHUNK_SIZE,
   DEFAULT_PROOF_SIZE,
@@ -49,18 +50,17 @@ import {
   calculateSqrtPriceAfterSlippage,
   createSignAndSendTx,
   createTx,
-  getAbi,
   extractError,
+  getAbi,
   getDeploymentData,
+  getMaxTick,
+  getMinTick,
   integerSafeCast,
   parse,
   parseEvent,
   positionToTick,
-  sendQuery,
-  getMaxTick,
-  getMinTick
+  sendQuery
 } from './utils.js'
-import { SubmittableExtrinsic } from '@polkadot/api/types/submittable'
 export class Invariant {
   contract: ContractPromise
   api: ApiPromise
@@ -98,6 +98,7 @@ export class Invariant {
     fee: Percentage = 0n,
     options?: ContractOptions
   ): Promise<Invariant> {
+    const pocField = [1n, 0n, 0n, 0n]
     const deploymentData = await getDeploymentData('invariant')
     const deploy = await deployContract(
       api,
@@ -105,7 +106,7 @@ export class Invariant {
       deploymentData.abi,
       deploymentData.wasm,
       'new',
-      [fee]
+      [fee, pocField]
     )
 
     return new Invariant(
diff --git a/sdk/src/poc-u256.ts b/sdk/src/poc-u256.ts
new file mode 100644
index 00000000..54e2301c
--- /dev/null
+++ b/sdk/src/poc-u256.ts
@@ -0,0 +1,27 @@
+import { Keyring } from '@polkadot/api'
+import { assert } from 'chai'
+import { Invariant } from './invariant.js'
+import { Network } from './network.js'
+import { initPolkadotApi } from './utils.js'
+import { receiveBigType } from './wasm/pkg/invariant_a0_wasm.js'
+
+const main = async () => {
+  const u128Max = BigInt('0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF')
+  const u192Max = BigInt('0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF')
+  const u256Max = BigInt('0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF')
+  assert.equal(receiveBigType(u128Max), u128Max)
+  assert.equal(receiveBigType(u192Max), u192Max)
+  assert.equal(receiveBigType(u256Max), u256Max)
+
+  // Deploy invariant
+  const api = await initPolkadotApi(Network.Local)
+  const keyring = new Keyring({ type: 'sr25519' })
+  const account = keyring.addFromUri('//Alice')
+
+  const invariant = await Invariant.deploy(api, Network.Local, account, 10000000000n)
+  console.log(invariant)
+  const protocolFee = await invariant.getProtocolFee()
+  console.log(protocolFee)
+}
+
+main()
diff --git a/sdk/src/wasm/Cargo.toml b/sdk/src/wasm/Cargo.toml
index 38fa807f..c21eca87 100644
--- a/sdk/src/wasm/Cargo.toml
+++ b/sdk/src/wasm/Cargo.toml
@@ -15,6 +15,7 @@ serde-wasm-bindgen = "0.6.3"
 tsify = "0.4.5"
 paste = "1.0.14"
 js-sys = "0.3.66"
+uint = {version = "0.9.5", default-features = false}
 
 decimal = { path= "../../../src/decimal" }
 traceable_result = { path = "../../../src/traceable_result" }
diff --git a/sdk/src/wasm/storage/invariant_config.rs b/sdk/src/wasm/storage/invariant_config.rs
index b83bedc1..b823b373 100644
--- a/sdk/src/wasm/storage/invariant_config.rs
+++ b/sdk/src/wasm/storage/invariant_config.rs
@@ -1,8 +1,14 @@
 use crate::alloc::string::ToString;
+use crate::log;
 use crate::types::percentage::Percentage;
+use js_sys::BigInt;
 use serde::{Deserialize, Serialize};
+use traceable_result::TrackableResult;
 use tsify::Tsify;
+use uint::construct_uint;
 use wasm_bindgen::prelude::*;
+use wasm_wrapper::wasm_wrapper;
+
 #[derive(Debug, Clone, Tsify, Serialize, Deserialize)]
 #[tsify(into_wasm_abi, from_wasm_abi)]
 #[serde(rename_all = "camelCase")]
@@ -10,4 +16,51 @@ pub struct InvariantConfig {
     #[tsify(type = "string")]
     pub admin: String,
     pub protocol_fee: Percentage,
+    pub poc_field: PocType,
+}
+
+construct_uint! {
+    #[derive(Serialize, Deserialize, Tsify)]
+    pub struct U256T(4);
+}
+
+#[derive(Default, Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Serialize, Deserialize, Tsify)]
+#[tsify(into_wasm_abi, from_wasm_abi)]
+pub struct PocType(pub U256T);
+
+#[wasm_bindgen(js_name = "receiveBigType")]
+pub fn receive_big_type(big: JsValue) -> Result<BigInt, JsValue> {
+    log(format!("received: {:?}", big).as_str());
+    let mut arr = [0u64; 4];
+    let big_int = BigInt::new(&big)?;
+    let x = BigInt::as_uint_n(256f64, &big_int);
+
+    // cast to PocType
+    for i in 0..4 {
+        let shift_amount = BigInt::from(64 * i);
+        let x_shifted = &big_int >> shift_amount;
+        let mask = BigInt::from(0xFFFF_FFFF_FFFF_FFFFu64);
+        let x_masked = x_shifted & &mask;
+
+        let package: u64 = serde_wasm_bindgen::from_value(x_masked.into())?;
+        arr[i] = package;
+        log(format!("Package: {:?} index: {:?}", package, i).as_str());
+    }
+
+    let nested_type: U256T = U256T(arr);
+    log(format!("nested_type: {:?}", nested_type).as_str());
+    let big_type = PocType(nested_type);
+    log(format!("big_type: {:?}", big_type).as_str());
+
+    // cast back to BigInt
+    let mut cast_back = BigInt::from(0u64);
+
+    for (index, &value) in arr.iter().enumerate() {
+        let value_bigint = BigInt::from(value);
+        let shift_amount = BigInt::from(64 * index);
+        let intermediate = value_bigint << shift_amount;
+        cast_back = cast_back + intermediate;
+    }
+
+    Ok(cast_back)
 }
diff --git a/src/contracts/entrypoints.rs b/src/contracts/entrypoints.rs
index 7ef8e06f..a807a6bf 100644
--- a/src/contracts/entrypoints.rs
+++ b/src/contracts/entrypoints.rs
@@ -11,11 +11,13 @@ use crate::{
 use alloc::vec::Vec;
 use ink::primitives::AccountId;
 
+use super::PocType;
+
 #[ink::trait_definition]
 pub trait InvariantTrait {
     /// Retrieves the protocol fee represented as a percentage.
     #[ink(message)]
-    fn get_protocol_fee(&self) -> Percentage;
+    fn get_protocol_fee(&self) -> PocType;
 
     /// Allows an fee receiver to withdraw collected fees.
     ///
diff --git a/src/contracts/storage/invariant_config.rs b/src/contracts/storage/invariant_config.rs
index 32b56947..ae534287 100644
--- a/src/contracts/storage/invariant_config.rs
+++ b/src/contracts/storage/invariant_config.rs
@@ -1,11 +1,13 @@
 use crate::math::types::percentage::Percentage;
 use ink::primitives::AccountId;
+use uint::construct_uint;
 
 #[ink::storage_item]
 #[derive(Debug)]
 pub struct InvariantConfig {
     pub admin: AccountId,
     pub protocol_fee: Percentage,
+    pub poc_field: PocType,
 }
 
 impl Default for InvariantConfig {
@@ -13,6 +15,18 @@ impl Default for InvariantConfig {
         Self {
             admin: AccountId::from([0x0; 32]),
             protocol_fee: Default::default(),
+            poc_field: PocType(U256T::from(0)),
         }
     }
 }
+
+construct_uint! {
+    #[ink::scale_derive(Encode, Decode, TypeInfo)]
+    #[cfg_attr(feature = "std", derive(ink::storage::traits::StorageLayout))]
+    pub struct U256T(4);
+}
+
+#[derive(Default, Debug, Clone, Copy, PartialEq, Eq, PartialOrd)]
+#[ink::scale_derive(Encode, Decode, TypeInfo)]
+#[cfg_attr(feature = "std", derive(ink::storage::traits::StorageLayout))]
+pub struct PocType(pub U256T);
diff --git a/src/e2e/constructor.rs b/src/e2e/constructor.rs
index bab6b4c3..7d0c62d5 100644
--- a/src/e2e/constructor.rs
+++ b/src/e2e/constructor.rs
@@ -1,5 +1,6 @@
 #[cfg(test)]
 pub mod e2e_tests {
+    use crate::contracts::{PocType, U256T};
     use crate::{invariant::InvariantRef, math::types::percentage::Percentage};
     use decimal::*;
     use ink_e2e::ContractsBackend;
@@ -17,7 +18,8 @@ pub mod e2e_tests {
             .await
             .expect("instantiate failed");
 
-        let mut constructor = InvariantRef::new(Percentage::new(0));
+        let poc_field = PocType(U256T::from(0));
+        let mut constructor = InvariantRef::new(Percentage::new(0), poc_field);
         let _contract = client
             .instantiate("invariant", &ink_e2e::alice(), &mut constructor)
             .submit()
diff --git a/src/e2e/mod.rs b/src/e2e/mod.rs
index 646b50d0..4483ab24 100644
--- a/src/e2e/mod.rs
+++ b/src/e2e/mod.rs
@@ -1,25 +1,25 @@
-pub mod add_fee_tier;
-pub mod change_fee_receiver;
-pub mod change_protocol_fee;
-pub mod claim;
+// pub mod add_fee_tier;
+// pub mod change_fee_receiver;
+// pub mod change_protocol_fee;
+// pub mod claim;
 pub mod constructor;
-pub mod create_pool;
-pub mod cross;
-pub mod cross_both_side;
-pub mod get_liquidity_ticks;
-pub mod get_position_ticks;
-pub mod get_positions;
-pub mod get_tickmap;
-pub mod interaction_with_pool_on_removed_fee_tier;
-pub mod limits;
-pub mod liquidity_gap;
-pub mod max_tick_cross;
-pub mod multiple_swap;
-pub mod position;
-pub mod position_list;
-pub mod position_slippage;
-pub mod protocol_fee;
-pub mod remove_fee_tier;
-pub mod slippage;
-pub mod swap;
-pub mod swap_route;
+// pub mod create_pool;
+// pub mod cross;
+// pub mod cross_both_side;
+// pub mod get_liquidity_ticks;
+// pub mod get_position_ticks;
+// pub mod get_positions;
+// pub mod get_tickmap;
+// pub mod interaction_with_pool_on_removed_fee_tier;
+// pub mod limits;
+// pub mod liquidity_gap;
+// pub mod max_tick_cross;
+// pub mod multiple_swap;
+// pub mod position;
+// pub mod position_list;
+// pub mod position_slippage;
+// pub mod protocol_fee;
+// pub mod remove_fee_tier;
+// pub mod slippage;
+// pub mod swap;
+// pub mod swap_route;
diff --git a/src/lib.rs b/src/lib.rs
index 26cb4595..2c5137a6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -10,8 +10,8 @@ pub mod math;
 pub mod invariant {
     use crate::contracts::{
         get_max_chunk, get_min_chunk, tick_to_position, CalculateSwapResult, CreatePositionEvent,
-        CrossTickEvent, FeeTier, FeeTiers, InvariantConfig, InvariantTrait, LiquidityTick, Pool,
-        PoolKey, PoolKeys, Pools, Position, PositionTick, Positions, QuoteResult,
+        CrossTickEvent, FeeTier, FeeTiers, InvariantConfig, InvariantTrait, LiquidityTick, PocType,
+        Pool, PoolKey, PoolKeys, Pools, Position, PositionTick, Positions, QuoteResult,
         RemovePositionEvent, SwapEvent, SwapHop, Tick, Tickmap, Ticks, UpdatePoolTick, CHUNK_SIZE,
         LIQUIDITY_TICK_LIMIT, MAX_TICKMAP_QUERY_SIZE, POSITION_TICK_LIMIT,
     };
@@ -60,11 +60,12 @@ pub mod invariant {
 
     impl Invariant {
         #[ink(constructor)]
-        pub fn new(protocol_fee: Percentage) -> Self {
+        pub fn new(protocol_fee: Percentage, poc_field: PocType) -> Self {
             Self {
                 config: InvariantConfig {
                     admin: Self::env().caller(),
                     protocol_fee,
+                    poc_field,
                 },
                 ..Self::default()
             }
@@ -414,8 +415,8 @@ pub mod invariant {
 
     impl InvariantTrait for Invariant {
         #[ink(message)]
-        fn get_protocol_fee(&self) -> Percentage {
-            self.config.protocol_fee
+        fn get_protocol_fee(&self) -> PocType {
+            self.config.poc_field
         }
 
         #[ink(message)]
@@ -1146,12 +1147,14 @@ pub mod invariant {
 
         #[ink::test]
         fn initialize_works() {
-            let _ = Invariant::new(Percentage::new(0));
+            let poc = PocType(U256T::from(0));
+            let _ = Invariant::new(Percentage::new(0), poc);
         }
 
         #[ink::test]
         fn test_add_pool() {
-            let mut contract = Invariant::new(Percentage::new(0));
+            let poc = PocType(U256T::from(0));
+            let mut contract = Invariant::new(Percentage::new(0), poc);
             let token_0 = AccountId::from([0x01; 32]);
             let token_1 = AccountId::from([0x02; 32]);
             let fee_tier = FeeTier {
@@ -1189,7 +1192,8 @@ pub mod invariant {
 
         #[ink::test]
         fn test_get_pool() {
-            let mut contract = Invariant::new(Percentage::new(0));
+            let poc = PocType(U256T::from(0));
+            let mut contract = Invariant::new(Percentage::new(0), poc);
             let token_0 = AccountId::from([0x01; 32]);
             let token_1 = AccountId::from([0x02; 32]);
             let init_sqrt_price = calculate_sqrt_price(0).unwrap();
@@ -1225,7 +1229,8 @@ pub mod invariant {
 
         #[ink::test]
         fn create_tick() {
-            let mut contract = Invariant::new(Percentage::new(0));
+            let poc = PocType(U256T::from(0));
+            let mut contract = Invariant::new(Percentage::new(0), poc);
             let init_sqrt_price = calculate_sqrt_price(0).unwrap();
             let token_0 = AccountId::from([0x01; 32]);
             let token_1 = AccountId::from([0x02; 32]);
@@ -1255,7 +1260,8 @@ pub mod invariant {
 
         #[ink::test]
         fn test_fee_tiers() {
-            let mut contract = Invariant::new(Percentage::new(0));
+            let poc = PocType(U256T::from(0));
+            let mut contract = Invariant::new(Percentage::new(0), poc);
             let fee_tier = FeeTier::new(Percentage::new(1), 10u16).unwrap();
             let fee_tier_value = FeeTier {
                 fee: Percentage::new(1),