Add sandbox-testnet ERC20

Author: taylanpince

index/index.json

@@ -161,11 +161,17 @@
         "misc.json": "0b25dc3ea49c8f217a83e381a2c38a9875cb3fda6f49621f10cdb1abbff5bcff"
       }
     },
+    "katana": {
+      "chainId": 747474,
+      "tokenLists": {
+        "erc20.json": "a9392c532680828b34852f8604938cf442b8ff5af12b456e941d70039eca07f3"
+      }
+    },
     "mainnet": {
       "chainId": 1,
       "tokenLists": {
         "erc1155.json": "fcf9839d83d05187f03cfc6ef1278c02828e5f415d65c57725954b61685a8e18",
-        "erc20.json": "23511cbc9c2ef9e96a756eb56e55d8f61c915514f1f59c53ed6ea70d4192f3bd",
+        "erc20.json": "d7a3f9dbaadf211d7e411d327a28565f97181e1dfecc6dd864e78f0b4f142f30",
         "erc721.json": "e14bd87d3814aaa9928352298dfc4efe90cc12111c14ac2ce47ecf9b27f361ab",
         "misc.json": "f98a5ccf5fa208e0861c020ad16b44adfafff42d8f359fa94e6701a7397b1e92"
       }
@@ -226,6 +232,12 @@
         "misc.json": "b8853f0471b8aba265f1353a26480efc315a55931c09c4e60d19cb71fe75f9d0"
       }
     },
+    "sandbox-testnet": {
+      "chainId": 6252,
+      "tokenLists": {
+        "erc20.json": "9fee98b571dc131d010f8f9e3300c5b595737c9fd8907e79e5607531edf9ff26"
+      }
+    },
     "sepolia": {
       "chainId": 11155111,
       "tokenLists": {

index/sandbox-testnet/erc20.json

@@ -0,0 +1,21 @@
+{
+  "name": "sequence-erc20-amoy",
+  "chainId": 6252,
+  "tokenStandard": "erc20",
+  "logoURI": "https://avatars.githubusercontent.com/u/35579638?s=400&u=41e1dbfbbf6f98037069c918c9383ffb8e978fb7&v=4",
+  "keywords": ["erc20", "fungible", "stablecoin", "coingecko"],
+  "timestamp": "2025-09-24T15:36:16.623Z",
+  "tokens": [
+    {
+      "chainId": 6252,
+      "address": "0x000000000000000000000000000000000000800A",
+      "name": "SAND",
+      "symbol": "SAND",
+      "decimals": 18,
+      "logoURI": "https://assets.sequence.info/images/ecosystem-demos/sandchain/favicon.png",
+      "extensions": {
+      }
+    }
+  ],
+  "version": { "major": 1, "minor": 0, "patch": 0 }
+}