diff --git a/.openzeppelin/polygon.json b/.openzeppelin/polygon.json
new file mode 100644
index 0000000..3fa9fc8
--- /dev/null
+++ b/.openzeppelin/polygon.json
@@ -0,0 +1,345 @@
+{
+  "manifestVersion": "3.2",
+  "proxies": [
+    {
+      "address": "0xFF04820c36759C9F5203021fe051239aD2dcca8a",
+      "txHash": "0x410240718be18996b6e08a127fb5657a2c3d71898578213f7a2c1d6e258ac104",
+      "kind": "uups"
+    }
+  ],
+  "impls": {
+    "fd9196c8d729eced96958d2ac8ad53eb930eceddf3ca62635a91d75ef1403cc7": {
+      "address": "0xC6e2ec5ea817c730AF4b179Fb0fe010743C91E08",
+      "txHash": "0xb000cac33586ff25ce853a42d708e14a63a0c27fc3f1d72ca76c2de1505f1b40",
+      "layout": {
+        "solcVersion": "0.8.19",
+        "storage": [
+          {
+            "label": "_initialized",
+            "offset": 0,
+            "slot": "0",
+            "type": "t_uint8",
+            "contract": "Initializable",
+            "src": "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol:62",
+            "retypedFrom": "bool"
+          },
+          {
+            "label": "_initializing",
+            "offset": 1,
+            "slot": "0",
+            "type": "t_bool",
+            "contract": "Initializable",
+            "src": "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol:67"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "1",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "ERC1967UpgradeUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/proxy/ERC1967/ERC1967UpgradeUpgradeable.sol:211"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "51",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "ContextUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol:36"
+          },
+          {
+            "label": "_owner",
+            "offset": 0,
+            "slot": "101",
+            "type": "t_address",
+            "contract": "OwnableUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol:22"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "102",
+            "type": "t_array(t_uint256)49_storage",
+            "contract": "OwnableUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol:94"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "151",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "UUPSUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol:107"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "201",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "ERC165Upgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol:41"
+          },
+          {
+            "label": "_name",
+            "offset": 0,
+            "slot": "251",
+            "type": "t_string_storage",
+            "contract": "ERC721Upgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol:25"
+          },
+          {
+            "label": "_symbol",
+            "offset": 0,
+            "slot": "252",
+            "type": "t_string_storage",
+            "contract": "ERC721Upgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol:28"
+          },
+          {
+            "label": "_owners",
+            "offset": 0,
+            "slot": "253",
+            "type": "t_mapping(t_uint256,t_address)",
+            "contract": "ERC721Upgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol:31"
+          },
+          {
+            "label": "_balances",
+            "offset": 0,
+            "slot": "254",
+            "type": "t_mapping(t_address,t_uint256)",
+            "contract": "ERC721Upgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol:34"
+          },
+          {
+            "label": "_tokenApprovals",
+            "offset": 0,
+            "slot": "255",
+            "type": "t_mapping(t_uint256,t_address)",
+            "contract": "ERC721Upgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol:37"
+          },
+          {
+            "label": "_operatorApprovals",
+            "offset": 0,
+            "slot": "256",
+            "type": "t_mapping(t_address,t_mapping(t_address,t_bool))",
+            "contract": "ERC721Upgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol:40"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "257",
+            "type": "t_array(t_uint256)44_storage",
+            "contract": "ERC721Upgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol:517"
+          },
+          {
+            "label": "_ownedTokens",
+            "offset": 0,
+            "slot": "301",
+            "type": "t_mapping(t_address,t_mapping(t_uint256,t_uint256))",
+            "contract": "ERC721EnumerableUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721EnumerableUpgradeable.sol:22"
+          },
+          {
+            "label": "_ownedTokensIndex",
+            "offset": 0,
+            "slot": "302",
+            "type": "t_mapping(t_uint256,t_uint256)",
+            "contract": "ERC721EnumerableUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721EnumerableUpgradeable.sol:25"
+          },
+          {
+            "label": "_allTokens",
+            "offset": 0,
+            "slot": "303",
+            "type": "t_array(t_uint256)dyn_storage",
+            "contract": "ERC721EnumerableUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721EnumerableUpgradeable.sol:28"
+          },
+          {
+            "label": "_allTokensIndex",
+            "offset": 0,
+            "slot": "304",
+            "type": "t_mapping(t_uint256,t_uint256)",
+            "contract": "ERC721EnumerableUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721EnumerableUpgradeable.sol:31"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "305",
+            "type": "t_array(t_uint256)46_storage",
+            "contract": "ERC721EnumerableUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721EnumerableUpgradeable.sol:171"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "351",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "SoulboundERC721",
+            "src": "contracts/token/SoulboundERC721.sol:17"
+          },
+          {
+            "label": "treasury",
+            "offset": 0,
+            "slot": "401",
+            "type": "t_address_payable",
+            "contract": "TreasuryManager",
+            "src": "contracts/utils/TreasuryManager.sol:10"
+          },
+          {
+            "label": "fee",
+            "offset": 0,
+            "slot": "402",
+            "type": "t_mapping(t_address,t_uint256)",
+            "contract": "TreasuryManager",
+            "src": "contracts/utils/TreasuryManager.sol:12"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "403",
+            "type": "t_array(t_uint256)48_storage",
+            "contract": "TreasuryManager",
+            "src": "contracts/utils/TreasuryManager.sol:15"
+          },
+          {
+            "label": "validSigner",
+            "offset": 0,
+            "slot": "451",
+            "type": "t_address",
+            "contract": "GuildCredential",
+            "src": "contracts/GuildCredential.sol:29"
+          },
+          {
+            "label": "cids",
+            "offset": 0,
+            "slot": "452",
+            "type": "t_mapping(t_uint256,t_string_storage)",
+            "contract": "GuildCredential",
+            "src": "contracts/GuildCredential.sol:32"
+          },
+          {
+            "label": "claimedTokens",
+            "offset": 0,
+            "slot": "453",
+            "type": "t_mapping(t_address,t_mapping(t_enum(GuildAction)5376,t_mapping(t_uint256,t_uint256)))",
+            "contract": "GuildCredential",
+            "src": "contracts/GuildCredential.sol:34"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "454",
+            "type": "t_array(t_uint256)47_storage",
+            "contract": "GuildCredential",
+            "src": "contracts/GuildCredential.sol:37"
+          }
+        ],
+        "types": {
+          "t_address": {
+            "label": "address",
+            "numberOfBytes": "20"
+          },
+          "t_address_payable": {
+            "label": "address payable",
+            "numberOfBytes": "20"
+          },
+          "t_array(t_uint256)44_storage": {
+            "label": "uint256[44]",
+            "numberOfBytes": "1408"
+          },
+          "t_array(t_uint256)46_storage": {
+            "label": "uint256[46]",
+            "numberOfBytes": "1472"
+          },
+          "t_array(t_uint256)47_storage": {
+            "label": "uint256[47]",
+            "numberOfBytes": "1504"
+          },
+          "t_array(t_uint256)48_storage": {
+            "label": "uint256[48]",
+            "numberOfBytes": "1536"
+          },
+          "t_array(t_uint256)49_storage": {
+            "label": "uint256[49]",
+            "numberOfBytes": "1568"
+          },
+          "t_array(t_uint256)50_storage": {
+            "label": "uint256[50]",
+            "numberOfBytes": "1600"
+          },
+          "t_array(t_uint256)dyn_storage": {
+            "label": "uint256[]",
+            "numberOfBytes": "32"
+          },
+          "t_bool": {
+            "label": "bool",
+            "numberOfBytes": "1"
+          },
+          "t_enum(GuildAction)5376": {
+            "label": "enum IGuildCredential.GuildAction",
+            "members": [
+              "JOINED_GUILD",
+              "IS_OWNER",
+              "IS_ADMIN"
+            ],
+            "numberOfBytes": "1"
+          },
+          "t_mapping(t_address,t_bool)": {
+            "label": "mapping(address => bool)",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_address,t_mapping(t_address,t_bool))": {
+            "label": "mapping(address => mapping(address => bool))",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_address,t_mapping(t_enum(GuildAction)5376,t_mapping(t_uint256,t_uint256)))": {
+            "label": "mapping(address => mapping(enum IGuildCredential.GuildAction => mapping(uint256 => uint256)))",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_address,t_mapping(t_uint256,t_uint256))": {
+            "label": "mapping(address => mapping(uint256 => uint256))",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_address,t_uint256)": {
+            "label": "mapping(address => uint256)",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_enum(GuildAction)5376,t_mapping(t_uint256,t_uint256))": {
+            "label": "mapping(enum IGuildCredential.GuildAction => mapping(uint256 => uint256))",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_uint256,t_address)": {
+            "label": "mapping(uint256 => address)",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_uint256,t_string_storage)": {
+            "label": "mapping(uint256 => string)",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_uint256,t_uint256)": {
+            "label": "mapping(uint256 => uint256)",
+            "numberOfBytes": "32"
+          },
+          "t_string_storage": {
+            "label": "string",
+            "numberOfBytes": "32"
+          },
+          "t_uint256": {
+            "label": "uint256",
+            "numberOfBytes": "32"
+          },
+          "t_uint8": {
+            "label": "uint8",
+            "numberOfBytes": "1"
+          }
+        }
+      }
+    }
+  }
+}