diff --git a/src/__tests__/assets.test.ts b/src/__tests__/assets.test.ts
index 35968e63b..4ca4009c6 100644
--- a/src/__tests__/assets.test.ts
+++ b/src/__tests__/assets.test.ts
@@ -114,6 +114,40 @@ describe('assets/', () => {
             expect([network, count]).toEqual([network, files.length]);
           }
         });
+
+        it('the address types for a network should be the same in all files', async () => {
+          const files = versionFiles(version);
+          const networkAddressMap: Record<string, string | string[]> = {};
+
+          for (const file of files) {
+            const deploymentJson = await readAssetJSON(version, file);
+            if (!deploymentJson) {
+              throw new Error(`Failed to read asset ${version}/${file}`);
+            }
+            const { networkAddresses } = deploymentJson;
+
+            for (const [network, addressTypes] of Object.entries(networkAddresses)) {
+              if (!networkAddressMap[network]) {
+                networkAddressMap[network] = addressTypes;
+              } else {
+                // We use try/catch here to make the error message more readable.
+                // Without it the error message looks like:
+                // Expected: "canonical"
+                // Actual:   ["canonical", "eip155"]
+                try {
+                  expect(addressTypes).toEqual(networkAddressMap[network]);
+                } catch (e) {
+                  console.log(`
+                    Discrepancy in network ${network}
+                    Expected: ${networkAddressMap[network]}
+                    Actual:   ${addressTypes}
+                  `);
+                  throw e;
+                }
+              }
+            }
+          }
+        });
       });
     });
   }
diff --git a/src/assets/v1.3.0/compatibility_fallback_handler.json b/src/assets/v1.3.0/compatibility_fallback_handler.json
index 4e6b530b5..0c1c22fd5 100644
--- a/src/assets/v1.3.0/compatibility_fallback_handler.json
+++ b/src/assets/v1.3.0/compatibility_fallback_handler.json
@@ -47,7 +47,7 @@
     "111": "eip155",
     "122": "canonical",
     "123": "canonical",
-    "137": ["canonical", "eip155"],
+    "137": "canonical",
     "148": "eip155",
     "155": "eip155",
     "169": "canonical",
@@ -80,7 +80,7 @@
     "787": "eip155",
     "919": ["canonical", "eip155"],
     "943": "canonical",
-    "1001": ["eip155", "canonical"],
+    "1001": "eip155",
     "1008": "canonical",
     "1030": "canonical",
     "1088": "eip155",
@@ -145,7 +145,7 @@
     "7700": "eip155",
     "8192": "eip155",
     "8194": "eip155",
-    "8217": ["eip155", "canonical"],
+    "8217": "eip155",
     "8329": "canonical",
     "8453": ["eip155", "canonical"],
     "8822": "eip155",
@@ -179,13 +179,13 @@
     "23295": "eip155",
     "28979": "canonical",
     "34443": ["canonical", "eip155"],
-    "42161": ["canonical", "eip155"],
+    "42161": "canonical",
     "42170": "canonical",
     "42220": ["eip155", "canonical"],
     "43113": ["canonical", "eip155"],
     "43114": ["eip155", "canonical"],
     "43288": "eip155",
-    "44787": ["canonical", "eip155"],
+    "44787": "canonical",
     "45000": "canonical",
     "47805": "canonical",
     "48899": "eip155",
@@ -199,10 +199,10 @@
     "71401": "eip155",
     "71402": "eip155",
     "73799": "canonical",
-    "80001": ["canonical", "eip155"],
+    "80001": "canonical",
     "80002": "canonical",
     "80085": ["canonical", "eip155"],
-    "81457": ["canonical", "eip155"],
+    "81457": "canonical",
     "83291": "canonical",
     "84531": "eip155",
     "84532": ["eip155", "canonical"],
@@ -217,7 +217,7 @@
     "333999": "canonical",
     "421611": "canonical",
     "421613": "canonical",
-    "421614": ["canonical", "eip155"],
+    "421614": "canonical",
     "534351": ["canonical", "eip155"],
     "534352": "canonical",
     "534353": "eip155",
@@ -231,15 +231,15 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": ["eip155", "canonical"],
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
     "161221135": "canonical",
-    "168587773": ["canonical", "eip155"],
+    "168587773": "canonical",
     "222000222": "canonical",
     "245022926": "eip155",
-    "245022934": ["eip155", "canonical"],
+    "245022934": "eip155",
     "333000333": "canonical",
     "666666666": ["canonical", "eip155"],
     "999999999": ["canonical", "eip155"],
diff --git a/src/assets/v1.3.0/create_call.json b/src/assets/v1.3.0/create_call.json
index 7faf81cb3..e4bedcbbc 100644
--- a/src/assets/v1.3.0/create_call.json
+++ b/src/assets/v1.3.0/create_call.json
@@ -80,7 +80,7 @@
     "787": "eip155",
     "919": ["canonical", "eip155"],
     "943": "canonical",
-    "1001": ["eip155", "canonical"],
+    "1001": "eip155",
     "1008": "canonical",
     "1030": "canonical",
     "1088": "eip155",
@@ -185,7 +185,7 @@
     "43113": ["canonical", "eip155"],
     "43114": ["eip155", "canonical"],
     "43288": "eip155",
-    "44787": ["canonical", "eip155"],
+    "44787": "canonical",
     "45000": "canonical",
     "47805": "canonical",
     "48899": "eip155",
@@ -202,7 +202,7 @@
     "80001": "canonical",
     "80002": "canonical",
     "80085": ["canonical", "eip155"],
-    "81457": ["canonical", "eip155"],
+    "81457": "canonical",
     "83291": "canonical",
     "84531": "eip155",
     "84532": ["eip155", "canonical"],
@@ -231,15 +231,15 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": "canonical",
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
     "161221135": "canonical",
-    "168587773": ["canonical", "eip155"],
+    "168587773": "canonical",
     "222000222": "canonical",
     "245022926": "eip155",
-    "245022934": ["eip155", "canonical"],
+    "245022934": "eip155",
     "333000333": "canonical",
     "666666666": ["canonical", "eip155"],
     "999999999": ["canonical", "eip155"],
diff --git a/src/assets/v1.3.0/gnosis_safe.json b/src/assets/v1.3.0/gnosis_safe.json
index 1f70cecd7..888ae4a3a 100644
--- a/src/assets/v1.3.0/gnosis_safe.json
+++ b/src/assets/v1.3.0/gnosis_safe.json
@@ -80,7 +80,7 @@
     "787": "eip155",
     "919": ["canonical", "eip155"],
     "943": "canonical",
-    "1001": ["eip155", "canonical"],
+    "1001": "eip155",
     "1008": "canonical",
     "1030": "canonical",
     "1088": "eip155",
@@ -124,7 +124,7 @@
     "4002": "canonical",
     "4078": "canonical",
     "4157": "eip155",
-    "4202": ["canonical", "eip155"],
+    "4202": "canonical",
     "4337": "canonical",
     "4460": "canonical",
     "4653": "eip155",
@@ -145,7 +145,7 @@
     "7700": "eip155",
     "8192": "eip155",
     "8194": "eip155",
-    "8217": ["eip155", "canonical"],
+    "8217": "eip155",
     "8329": "canonical",
     "8453": ["eip155", "canonical"],
     "8822": "eip155",
@@ -185,7 +185,7 @@
     "43113": ["canonical", "eip155"],
     "43114": ["eip155", "canonical"],
     "43288": "eip155",
-    "44787": ["canonical", "eip155"],
+    "44787": "canonical",
     "45000": "canonical",
     "47805": "canonical",
     "48899": "eip155",
@@ -202,7 +202,7 @@
     "80001": "canonical",
     "80002": "canonical",
     "80085": ["canonical", "eip155"],
-    "81457": ["canonical", "eip155"],
+    "81457": "canonical",
     "83291": "canonical",
     "84531": "eip155",
     "84532": ["eip155", "canonical"],
@@ -231,15 +231,15 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": ["eip155", "canonical"],
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
     "161221135": "canonical",
-    "168587773": ["canonical", "eip155"],
+    "168587773": "canonical",
     "222000222": "canonical",
-    "245022926": ["eip155", "canonical"],
-    "245022934": ["eip155", "canonical"],
+    "245022926": "eip155",
+    "245022934": "eip155",
     "333000333": "canonical",
     "666666666": ["canonical", "eip155"],
     "999999999": ["canonical", "eip155"],
diff --git a/src/assets/v1.3.0/gnosis_safe_l2.json b/src/assets/v1.3.0/gnosis_safe_l2.json
index ead3914b6..ca8446177 100644
--- a/src/assets/v1.3.0/gnosis_safe_l2.json
+++ b/src/assets/v1.3.0/gnosis_safe_l2.json
@@ -47,7 +47,7 @@
     "111": "eip155",
     "122": "canonical",
     "123": "canonical",
-    "137": ["canonical", "eip155"],
+    "137": "canonical",
     "148": "eip155",
     "155": "eip155",
     "169": "canonical",
@@ -67,7 +67,7 @@
     "324": "zksync",
     "336": ["canonical", "eip155"],
     "338": "eip155",
-    "369": ["canonical", "eip155"],
+    "369": "canonical",
     "420": "eip155",
     "424": "canonical",
     "570": "eip155",
@@ -79,7 +79,7 @@
     "690": ["eip155", "canonical"],
     "787": "eip155",
     "919": ["canonical", "eip155"],
-    "943": ["canonical", "eip155"],
+    "943": "canonical",
     "1001": "eip155",
     "1008": "canonical",
     "1030": "canonical",
@@ -124,7 +124,7 @@
     "4002": "canonical",
     "4078": "canonical",
     "4157": "eip155",
-    "4202": ["canonical", "eip155"],
+    "4202": "canonical",
     "4337": "canonical",
     "4460": "canonical",
     "4653": "eip155",
@@ -179,13 +179,13 @@
     "23295": "eip155",
     "28979": "canonical",
     "34443": ["canonical", "eip155"],
-    "42161": ["canonical", "eip155"],
+    "42161": "canonical",
     "42170": "canonical",
     "42220": ["eip155", "canonical"],
     "43113": ["canonical", "eip155"],
     "43114": ["eip155", "canonical"],
     "43288": "eip155",
-    "44787": ["canonical", "eip155"],
+    "44787": "canonical",
     "45000": "canonical",
     "47805": "canonical",
     "48899": "eip155",
@@ -202,7 +202,7 @@
     "80001": "canonical",
     "80002": "canonical",
     "80085": ["canonical", "eip155"],
-    "81457": ["canonical", "eip155"],
+    "81457": "canonical",
     "83291": "canonical",
     "84531": "eip155",
     "84532": ["eip155", "canonical"],
@@ -217,7 +217,7 @@
     "333999": "canonical",
     "421611": "canonical",
     "421613": "canonical",
-    "421614": ["canonical", "eip155"],
+    "421614": "canonical",
     "534351": ["canonical", "eip155"],
     "534352": "canonical",
     "534353": "eip155",
@@ -231,12 +231,12 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": ["eip155", "canonical"],
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
     "161221135": "canonical",
-    "168587773": ["canonical", "eip155"],
+    "168587773": "canonical",
     "222000222": "canonical",
     "245022926": "eip155",
     "245022934": "eip155",
diff --git a/src/assets/v1.3.0/multi_send.json b/src/assets/v1.3.0/multi_send.json
index 093532cf8..ec001ed26 100644
--- a/src/assets/v1.3.0/multi_send.json
+++ b/src/assets/v1.3.0/multi_send.json
@@ -80,7 +80,7 @@
     "787": "eip155",
     "919": ["canonical", "eip155"],
     "943": "canonical",
-    "1001": ["eip155", "canonical"],
+    "1001": "eip155",
     "1008": "canonical",
     "1030": "canonical",
     "1088": "eip155",
@@ -124,7 +124,7 @@
     "4002": "canonical",
     "4078": "canonical",
     "4157": "eip155",
-    "4202": ["canonical", "eip155"],
+    "4202": "canonical",
     "4337": "canonical",
     "4460": "canonical",
     "4653": "eip155",
@@ -185,7 +185,7 @@
     "43113": ["canonical", "eip155"],
     "43114": ["eip155", "canonical"],
     "43288": "eip155",
-    "44787": ["canonical", "eip155"],
+    "44787": "canonical",
     "45000": "canonical",
     "47805": "canonical",
     "48899": "eip155",
@@ -202,7 +202,7 @@
     "80001": "canonical",
     "80002": "canonical",
     "80085": ["canonical", "eip155"],
-    "81457": ["canonical", "eip155"],
+    "81457": "canonical",
     "83291": "canonical",
     "84531": "eip155",
     "84532": ["eip155", "canonical"],
@@ -231,15 +231,15 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": ["eip155", "canonical"],
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
     "161221135": "canonical",
-    "168587773": ["canonical", "eip155"],
+    "168587773": "canonical",
     "222000222": "canonical",
     "245022926": "eip155",
-    "245022934": ["eip155", "canonical"],
+    "245022934": "eip155",
     "333000333": "canonical",
     "666666666": ["canonical", "eip155"],
     "999999999": ["canonical", "eip155"],
diff --git a/src/assets/v1.3.0/multi_send_call_only.json b/src/assets/v1.3.0/multi_send_call_only.json
index 204e40fdf..b6136107b 100644
--- a/src/assets/v1.3.0/multi_send_call_only.json
+++ b/src/assets/v1.3.0/multi_send_call_only.json
@@ -47,7 +47,7 @@
     "111": "eip155",
     "122": "canonical",
     "123": "canonical",
-    "137": ["canonical", "eip155"],
+    "137": "canonical",
     "148": "eip155",
     "155": "eip155",
     "169": "canonical",
@@ -80,7 +80,7 @@
     "787": "eip155",
     "919": ["canonical", "eip155"],
     "943": "canonical",
-    "1001": ["eip155", "canonical"],
+    "1001": "eip155",
     "1008": "canonical",
     "1030": "canonical",
     "1088": "eip155",
@@ -124,7 +124,7 @@
     "4002": "canonical",
     "4078": "canonical",
     "4157": "eip155",
-    "4202": ["canonical", "eip155"],
+    "4202": "canonical",
     "4337": "canonical",
     "4460": "canonical",
     "4653": "eip155",
@@ -179,13 +179,13 @@
     "23295": "eip155",
     "28979": "canonical",
     "34443": ["canonical", "eip155"],
-    "42161": ["canonical", "eip155"],
+    "42161": "canonical",
     "42170": "canonical",
     "42220": ["eip155", "canonical"],
     "43113": ["canonical", "eip155"],
     "43114": ["eip155", "canonical"],
     "43288": "eip155",
-    "44787": ["canonical", "eip155"],
+    "44787": "canonical",
     "45000": "canonical",
     "47805": "canonical",
     "48899": "eip155",
@@ -199,10 +199,10 @@
     "71401": "eip155",
     "71402": "eip155",
     "73799": "canonical",
-    "80001": ["canonical", "eip155"],
+    "80001": "canonical",
     "80002": "canonical",
     "80085": ["canonical", "eip155"],
-    "81457": ["canonical", "eip155"],
+    "81457": "canonical",
     "83291": "canonical",
     "84531": "eip155",
     "84532": ["eip155", "canonical"],
@@ -217,7 +217,7 @@
     "333999": "canonical",
     "421611": "canonical",
     "421613": "canonical",
-    "421614": ["canonical", "eip155"],
+    "421614": "canonical",
     "534351": ["canonical", "eip155"],
     "534352": "canonical",
     "534353": "eip155",
@@ -231,15 +231,15 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": "canonical",
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
     "161221135": "canonical",
-    "168587773": ["canonical", "eip155"],
+    "168587773": "canonical",
     "222000222": "canonical",
     "245022926": "eip155",
-    "245022934": ["eip155", "canonical"],
+    "245022934": "eip155",
     "333000333": "canonical",
     "666666666": ["canonical", "eip155"],
     "999999999": ["canonical", "eip155"],
diff --git a/src/assets/v1.3.0/proxy_factory.json b/src/assets/v1.3.0/proxy_factory.json
index 7d3ce460b..57c12cdc4 100644
--- a/src/assets/v1.3.0/proxy_factory.json
+++ b/src/assets/v1.3.0/proxy_factory.json
@@ -47,11 +47,11 @@
     "111": "eip155",
     "122": "canonical",
     "123": "canonical",
-    "137": ["canonical", "eip155"],
+    "137": "canonical",
     "148": "eip155",
     "155": "eip155",
     "169": "canonical",
-    "195": ["eip155", "canonical"],
+    "195": "eip155",
     "196": ["eip155", "canonical"],
     "204": ["eip155", "canonical"],
     "246": "canonical",
@@ -67,7 +67,7 @@
     "324": "zksync",
     "336": ["canonical", "eip155"],
     "338": "eip155",
-    "369": ["canonical", "eip155"],
+    "369": "canonical",
     "420": "eip155",
     "424": "canonical",
     "570": "eip155",
@@ -79,8 +79,8 @@
     "690": ["eip155", "canonical"],
     "787": "eip155",
     "919": ["canonical", "eip155"],
-    "943": ["canonical", "eip155"],
-    "1001": ["eip155", "canonical"],
+    "943": "canonical",
+    "1001": "eip155",
     "1008": "canonical",
     "1030": "canonical",
     "1088": "eip155",
@@ -145,7 +145,7 @@
     "7700": "eip155",
     "8192": "eip155",
     "8194": "eip155",
-    "8217": ["eip155", "canonical"],
+    "8217": "eip155",
     "8329": "canonical",
     "8453": ["eip155", "canonical"],
     "8822": "eip155",
@@ -179,13 +179,13 @@
     "23295": "eip155",
     "28979": "canonical",
     "34443": ["canonical", "eip155"],
-    "42161": ["canonical", "eip155"],
+    "42161": "canonical",
     "42170": "canonical",
     "42220": ["eip155", "canonical"],
     "43113": ["canonical", "eip155"],
     "43114": ["eip155", "canonical"],
     "43288": "eip155",
-    "44787": ["canonical", "eip155"],
+    "44787": "canonical",
     "45000": "canonical",
     "47805": "canonical",
     "48899": "eip155",
@@ -202,7 +202,7 @@
     "80001": "canonical",
     "80002": "canonical",
     "80085": ["canonical", "eip155"],
-    "81457": ["canonical", "eip155"],
+    "81457": "canonical",
     "83291": "canonical",
     "84531": "eip155",
     "84532": ["eip155", "canonical"],
@@ -217,7 +217,7 @@
     "333999": "canonical",
     "421611": "canonical",
     "421613": "canonical",
-    "421614": ["canonical", "eip155"],
+    "421614": "canonical",
     "534351": ["canonical", "eip155"],
     "534352": "canonical",
     "534353": "eip155",
@@ -231,15 +231,15 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": "canonical",
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
     "161221135": "canonical",
-    "168587773": ["canonical", "eip155"],
+    "168587773": "canonical",
     "222000222": "canonical",
-    "245022926": ["eip155", "canonical"],
-    "245022934": ["eip155", "canonical"],
+    "245022926": "eip155",
+    "245022934": "eip155",
     "333000333": "canonical",
     "666666666": ["canonical", "eip155"],
     "999999999": ["canonical", "eip155"],
diff --git a/src/assets/v1.3.0/sign_message_lib.json b/src/assets/v1.3.0/sign_message_lib.json
index b46e19b06..d579f040c 100644
--- a/src/assets/v1.3.0/sign_message_lib.json
+++ b/src/assets/v1.3.0/sign_message_lib.json
@@ -231,7 +231,7 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": "canonical",
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
@@ -239,7 +239,7 @@
     "168587773": "canonical",
     "222000222": "canonical",
     "245022926": "eip155",
-    "245022934": ["eip155", "canonical"],
+    "245022934": "eip155",
     "333000333": "canonical",
     "666666666": ["canonical", "eip155"],
     "999999999": ["canonical", "eip155"],
diff --git a/src/assets/v1.3.0/simulate_tx_accessor.json b/src/assets/v1.3.0/simulate_tx_accessor.json
index 008b310bd..c0da67c4c 100644
--- a/src/assets/v1.3.0/simulate_tx_accessor.json
+++ b/src/assets/v1.3.0/simulate_tx_accessor.json
@@ -80,7 +80,7 @@
     "787": "eip155",
     "919": ["canonical", "eip155"],
     "943": "canonical",
-    "1001": ["eip155", "canonical"],
+    "1001": "eip155",
     "1008": "canonical",
     "1030": "canonical",
     "1088": "eip155",
@@ -185,7 +185,7 @@
     "43113": ["canonical", "eip155"],
     "43114": ["eip155", "canonical"],
     "43288": "eip155",
-    "44787": ["canonical", "eip155"],
+    "44787": "canonical",
     "45000": "canonical",
     "47805": "canonical",
     "48899": "eip155",
@@ -199,7 +199,7 @@
     "71401": "eip155",
     "71402": "eip155",
     "73799": "canonical",
-    "80001": ["canonical", "eip155"],
+    "80001": "canonical",
     "80002": "canonical",
     "80085": ["canonical", "eip155"],
     "81457": "canonical",
@@ -231,15 +231,15 @@
     "7225878": "eip155",
     "7777777": ["canonical", "eip155"],
     "11155111": ["eip155", "canonical"],
-    "11155420": ["eip155", "canonical"],
+    "11155420": "eip155",
     "94204209": ["canonical", "eip155"],
     "111557560": ["canonical", "eip155"],
     "123420111": ["canonical", "eip155"],
     "161221135": "canonical",
-    "168587773": ["canonical", "eip155"],
+    "168587773": "canonical",
     "222000222": "canonical",
     "245022926": "eip155",
-    "245022934": ["eip155", "canonical"],
+    "245022934": "eip155",
     "333000333": "canonical",
     "666666666": ["canonical", "eip155"],
     "999999999": ["canonical", "eip155"],