HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 1178670,
"next": "http://www.4byte.directory/api/v1/signatures/?format=api&page=180",
"previous": "http://www.4byte.directory/api/v1/signatures/?format=api&page=178",
"results": [
{
"id": 1193965,
"created_at": "2026-02-16T12:09:15.774366Z",
"text_signature": "messageRoot()",
"hex_signature": "0xd4b9f4fa",
"bytes_signature": "Ô¹ôú"
},
{
"id": 1193964,
"created_at": "2026-02-16T12:09:15.771057Z",
"text_signature": "baseTokenAssetId(uint256)",
"hex_signature": "0xe52db4ca",
"bytes_signature": "å-´Ê"
},
{
"id": 1193963,
"created_at": "2026-02-16T12:09:15.767613Z",
"text_signature": "assetIdIsRegistered(bytes32)",
"hex_signature": "0xe0ab6368",
"bytes_signature": "à«ch"
},
{
"id": 1193962,
"created_at": "2026-02-16T12:09:15.765092Z",
"text_signature": "chainTypeManager(uint256)",
"hex_signature": "0x9d5bd3da",
"bytes_signature": "[ÓÚ"
},
{
"id": 1193961,
"created_at": "2026-02-16T12:09:15.756938Z",
"text_signature": "chainTypeManagerIsRegistered(address)",
"hex_signature": "0xb93c9366",
"bytes_signature": "¹<f"
},
{
"id": 1193960,
"created_at": "2026-02-16T11:59:41.757464Z",
"text_signature": "testVerifyNativeUnsupportedRIP7212(bytes32,uint256)",
"hex_signature": "0xc3a46c4e",
"bytes_signature": "älN"
},
{
"id": 1193959,
"created_at": "2026-02-16T11:58:51.608655Z",
"text_signature": "compute_alpha_square_lagrange_0()",
"hex_signature": "0xe991409a",
"bytes_signature": "é@"
},
{
"id": 1193958,
"created_at": "2026-02-16T11:58:51.602216Z",
"text_signature": "error_random_generation()",
"hex_signature": "0x90240690",
"bytes_signature": "$\u0006"
},
{
"id": 1193957,
"created_at": "2026-02-16T11:58:51.595026Z",
"text_signature": "error_verify()",
"hex_signature": "0x93f24b56",
"bytes_signature": "òKV"
},
{
"id": 1193956,
"created_at": "2026-02-16T11:58:51.588886Z",
"text_signature": "error_pairing()",
"hex_signature": "0x589684f1",
"bytes_signature": "Xñ"
},
{
"id": 1193955,
"created_at": "2026-02-16T11:58:51.581143Z",
"text_signature": "error_proof_openings_size()",
"hex_signature": "0xa0589692",
"bytes_signature": " X"
},
{
"id": 1193954,
"created_at": "2026-02-16T11:58:51.574020Z",
"text_signature": "error_proof_size()",
"hex_signature": "0xa6384d30",
"bytes_signature": "¦8M0"
},
{
"id": 1193953,
"created_at": "2026-02-16T11:58:51.567721Z",
"text_signature": "error_inputs_size()",
"hex_signature": "0xa6b4b2a4",
"bytes_signature": "¦´²¤"
},
{
"id": 1193952,
"created_at": "2026-02-16T11:58:51.561813Z",
"text_signature": "error_ec_op()",
"hex_signature": "0x1f6a90c1",
"bytes_signature": "\u001fjÁ"
},
{
"id": 1193951,
"created_at": "2026-02-16T11:58:51.555506Z",
"text_signature": "error_mod_exp()",
"hex_signature": "0xf21eb64b",
"bytes_signature": "ò\u001e¶K"
},
{
"id": 1193950,
"created_at": "2026-02-16T11:58:51.545826Z",
"text_signature": "error_nb_public_inputs()",
"hex_signature": "0xfe00afe4",
"bytes_signature": "þ\u0000¯ä"
},
{
"id": 1193949,
"created_at": "2026-02-16T11:58:51.526956Z",
"text_signature": "VERIFIER_HASH()",
"hex_signature": "0x2a510436",
"bytes_signature": "*Q\u00046"
},
{
"id": 1193948,
"created_at": "2026-02-16T11:44:42.466136Z",
"text_signature": "checkBalanceOf(address,address)",
"hex_signature": "0xc5a3e9d1",
"bytes_signature": "Å£éÑ"
},
{
"id": 1193947,
"created_at": "2026-02-16T11:44:41.569105Z",
"text_signature": "_hasNativeRIPPrecompile()",
"hex_signature": "0x32ae2975",
"bytes_signature": "2®)u"
},
{
"id": 1193946,
"created_at": "2026-02-16T11:44:40.906167Z",
"text_signature": "testCheckBalanceOf(address,uint256)",
"hex_signature": "0xdc08816d",
"bytes_signature": "Ü\bm"
},
{
"id": 1193945,
"created_at": "2026-02-16T11:44:40.901901Z",
"text_signature": "testCheckBalanceOfNonImplemented()",
"hex_signature": "0xf415b0ce",
"bytes_signature": "ô\u0015°Î"
},
{
"id": 1193944,
"created_at": "2026-02-16T11:43:54.553659Z",
"text_signature": "_getBatchSubmitter(address)",
"hex_signature": "0xcdb8ae11",
"bytes_signature": "͸®\u0011"
},
{
"id": 1193943,
"created_at": "2026-02-16T11:43:54.549814Z",
"text_signature": "_getDelayedWETHProxy(address)",
"hex_signature": "0x8730c603",
"bytes_signature": "0Æ\u0003"
},
{
"id": 1193942,
"created_at": "2026-02-16T11:43:54.545856Z",
"text_signature": "_getPermissionedDisputeGame(address)",
"hex_signature": "0x308687e3",
"bytes_signature": "0ã"
},
{
"id": 1193941,
"created_at": "2026-02-16T11:43:54.542383Z",
"text_signature": "_getFaultDisputeGame(address)",
"hex_signature": "0x1f9df546",
"bytes_signature": "\u001fõF"
},
{
"id": 1193940,
"created_at": "2026-02-16T11:43:54.538658Z",
"text_signature": "_getSuperchainConfig(address)",
"hex_signature": "0x51b1e4f4",
"bytes_signature": "Q±äô"
},
{
"id": 1193939,
"created_at": "2026-02-16T11:43:54.534709Z",
"text_signature": "_getDisputeGameFactoryProxy(address)",
"hex_signature": "0xe1a1a449",
"bytes_signature": "ᡤI"
},
{
"id": 1193938,
"created_at": "2026-02-16T11:43:54.531233Z",
"text_signature": "_getOptimismMintableERC20FactoryProxy(address)",
"hex_signature": "0xd7c02aa8",
"bytes_signature": "×À*¨"
},
{
"id": 1193937,
"created_at": "2026-02-16T11:43:54.527390Z",
"text_signature": "_getL1ERC721BridgeProxy(address)",
"hex_signature": "0x6246d122",
"bytes_signature": "bFÑ\""
},
{
"id": 1193936,
"created_at": "2026-02-16T11:43:54.523262Z",
"text_signature": "_getAddressManager(address)",
"hex_signature": "0x99306068",
"bytes_signature": "0`h"
},
{
"id": 1193935,
"created_at": "2026-02-16T11:43:54.519625Z",
"text_signature": "_getOptimismPortalProxy(address)",
"hex_signature": "0x1bf686d4",
"bytes_signature": "\u001böÔ"
},
{
"id": 1193934,
"created_at": "2026-02-16T11:43:54.516052Z",
"text_signature": "_getSystemConfigProxy(address)",
"hex_signature": "0x74a10518",
"bytes_signature": "t¡\u0005\u0018"
},
{
"id": 1193933,
"created_at": "2026-02-16T11:43:54.512386Z",
"text_signature": "_getGuardian(address)",
"hex_signature": "0x651715d9",
"bytes_signature": "e\u0017\u0015Ù"
},
{
"id": 1193932,
"created_at": "2026-02-16T11:43:54.508310Z",
"text_signature": "permissionless()",
"hex_signature": "0xa1256f9f",
"bytes_signature": "¡%o"
},
{
"id": 1193931,
"created_at": "2026-02-16T11:43:54.504860Z",
"text_signature": "permissioned()",
"hex_signature": "0x3cc162f1",
"bytes_signature": "<Ábñ"
},
{
"id": 1193930,
"created_at": "2026-02-16T11:43:54.500928Z",
"text_signature": "batchSubmitter()",
"hex_signature": "0xfb951e9d",
"bytes_signature": "û\u001e"
},
{
"id": 1193929,
"created_at": "2026-02-16T11:43:54.483369Z",
"text_signature": "l2OutputOracleProxy()",
"hex_signature": "0xa2c9a89f",
"bytes_signature": "¢É¨"
},
{
"id": 1193928,
"created_at": "2026-02-16T11:43:53.657064Z",
"text_signature": "test_delayedWeth_succeeds()",
"hex_signature": "0xf2e316e5",
"bytes_signature": "òã\u0016å"
},
{
"id": 1193927,
"created_at": "2026-02-16T11:43:53.652249Z",
"text_signature": "test_portalFallback_succeeds()",
"hex_signature": "0xfd133fab",
"bytes_signature": "ý\u0013?«"
},
{
"id": 1193926,
"created_at": "2026-02-16T11:43:53.647345Z",
"text_signature": "test_guardianFallback_succeeds()",
"hex_signature": "0x75ed60d5",
"bytes_signature": "uí`Õ"
},
{
"id": 1193925,
"created_at": "2026-02-16T11:43:53.642259Z",
"text_signature": "test_modernPermissionless_succeeds()",
"hex_signature": "0x953923e6",
"bytes_signature": "9#æ"
},
{
"id": 1193924,
"created_at": "2026-02-16T11:43:53.637146Z",
"text_signature": "test_modernPermissioned_succeeds()",
"hex_signature": "0x60e5580b",
"bytes_signature": "`åX\u000b"
},
{
"id": 1193923,
"created_at": "2026-02-16T11:43:53.631994Z",
"text_signature": "test_legacyL2OutputOracle_succeeds()",
"hex_signature": "0xffb8cc2c",
"bytes_signature": "ÿ¸Ì,"
},
{
"id": 1193922,
"created_at": "2026-02-16T11:43:53.627405Z",
"text_signature": "_prepareModernTestContext()",
"hex_signature": "0x53d7f6e2",
"bytes_signature": "S×öâ"
},
{
"id": 1193921,
"created_at": "2026-02-16T11:43:53.622193Z",
"text_signature": "_prepareLegacyTestContext()",
"hex_signature": "0xf97c3d89",
"bytes_signature": "ù|="
},
{
"id": 1193920,
"created_at": "2026-02-16T11:43:53.617368Z",
"text_signature": "_prepareTestContext()",
"hex_signature": "0x30532266",
"bytes_signature": "0S\"f"
},
{
"id": 1193919,
"created_at": "2026-02-16T11:43:53.612376Z",
"text_signature": "_setupProxyAdmin(address,address)",
"hex_signature": "0xb6864199",
"bytes_signature": "¶A"
},
{
"id": 1193918,
"created_at": "2026-02-16T11:43:53.607365Z",
"text_signature": "_setupAddressManagerSlot(address,address)",
"hex_signature": "0x8d984712",
"bytes_signature": "G\u0012"
},
{
"id": 1193917,
"created_at": "2026-02-16T11:43:53.598987Z",
"text_signature": "set_anchorStateRegistry(address)",
"hex_signature": "0x02048937",
"bytes_signature": "\u0002\u00047"
},
{
"id": 1193916,
"created_at": "2026-02-16T11:43:53.593936Z",
"text_signature": "set_vm(address)",
"hex_signature": "0xf00b5c36",
"bytes_signature": "ð\u000b\\6"
},
{
"id": 1193915,
"created_at": "2026-02-16T11:43:53.588687Z",
"text_signature": "set_proposer(address)",
"hex_signature": "0x20583527",
"bytes_signature": " X5'"
},
{
"id": 1193914,
"created_at": "2026-02-16T11:43:53.583397Z",
"text_signature": "set_challenger(address)",
"hex_signature": "0x23a4c925",
"bytes_signature": "#¤É%"
},
{
"id": 1193913,
"created_at": "2026-02-16T11:43:53.579259Z",
"text_signature": "set_disputeGameFactory(address)",
"hex_signature": "0xb09e1194",
"bytes_signature": "°\u0011"
},
{
"id": 1193912,
"created_at": "2026-02-16T11:43:53.575193Z",
"text_signature": "set_optimismMintableERC20Factory(address)",
"hex_signature": "0x8bc19410",
"bytes_signature": "Á\u0010"
},
{
"id": 1193911,
"created_at": "2026-02-16T11:43:53.571391Z",
"text_signature": "set_l1ERC721Bridge(address)",
"hex_signature": "0x56864781",
"bytes_signature": "VG"
},
{
"id": 1193910,
"created_at": "2026-02-16T11:43:53.566913Z",
"text_signature": "set_superchainConfig(address)",
"hex_signature": "0xe277f333",
"bytes_signature": "âwó3"
},
{
"id": 1193909,
"created_at": "2026-02-16T11:43:53.562393Z",
"text_signature": "set_portal(address)",
"hex_signature": "0xe1b70010",
"bytes_signature": "á·\u0000\u0010"
},
{
"id": 1193908,
"created_at": "2026-02-16T11:43:53.558510Z",
"text_signature": "set_systemConfig(address)",
"hex_signature": "0x23dabe43",
"bytes_signature": "#Ú¾C"
},
{
"id": 1193907,
"created_at": "2026-02-16T11:43:53.553230Z",
"text_signature": "set_messenger(address)",
"hex_signature": "0x68007e12",
"bytes_signature": "h\u0000~\u0012"
},
{
"id": 1193906,
"created_at": "2026-02-16T11:43:53.549330Z",
"text_signature": "set_PROPOSER(address)",
"hex_signature": "0x7bd75c7a",
"bytes_signature": "{×\\z"
},
{
"id": 1193905,
"created_at": "2026-02-16T11:43:53.545538Z",
"text_signature": "set_L2_ORACLE(address)",
"hex_signature": "0x564156db",
"bytes_signature": "VAVÛ"
},
{
"id": 1193904,
"created_at": "2026-02-16T11:43:53.541708Z",
"text_signature": "set_PORTAL(address)",
"hex_signature": "0x60d4cc07",
"bytes_signature": "`ÔÌ\u0007"
},
{
"id": 1193903,
"created_at": "2026-02-16T11:43:53.537539Z",
"text_signature": "set_SYSTEM_CONFIG(address)",
"hex_signature": "0x8b8e0216",
"bytes_signature": "\u0002\u0016"
},
{
"id": 1193902,
"created_at": "2026-02-16T11:43:53.523915Z",
"text_signature": "set_GUARDIAN(address)",
"hex_signature": "0xe7920861",
"bytes_signature": "ç\ba"
},
{
"id": 1193901,
"created_at": "2026-02-16T11:36:55.995848Z",
"text_signature": "testExpectRevertWithEncodedErrorPrefix()",
"hex_signature": "0xd19b6d1e",
"bytes_signature": "Ñm\u001e"
},
{
"id": 1193900,
"created_at": "2026-02-16T11:29:19.563040Z",
"text_signature": "disableReentrancy()",
"hex_signature": "0xcc23fb1c",
"bytes_signature": "Ì#û\u001c"
},
{
"id": 1193899,
"created_at": "2026-02-16T11:29:19.545659Z",
"text_signature": "_setDelay(uint32)",
"hex_signature": "0x2afc4521",
"bytes_signature": "*üE!"
},
{
"id": 1193898,
"created_at": "2026-02-16T11:29:19.542714Z",
"text_signature": "_setImmediate(bool)",
"hex_signature": "0x3e5047b2",
"bytes_signature": ">PG²"
},
{
"id": 1193897,
"created_at": "2026-02-16T11:29:19.531889Z",
"text_signature": "_reverse(bytes32,bytes32)",
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"bytes_signature": "\n6¹è"
},
{
"id": 1193896,
"created_at": "2026-02-16T11:29:19.528278Z",
"text_signature": "_reverse(address,address)",
"hex_signature": "0x1e9f80f1",
"bytes_signature": "\u001eñ"
},
{
"id": 1193895,
"created_at": "2026-02-16T11:29:19.525106Z",
"text_signature": "unsafeSetLength(uint256)",
"hex_signature": "0xe9fdbeba",
"bytes_signature": "éý¾º"
},
{
"id": 1193894,
"created_at": "2026-02-16T11:29:19.522659Z",
"text_signature": "_reverse(uint256,uint256)",
"hex_signature": "0x264e268f",
"bytes_signature": "&N&"
},
{
"id": 1193893,
"created_at": "2026-02-16T11:29:19.519992Z",
"text_signature": "upperBound(uint256)",
"hex_signature": "0x233c1d6a",
"bytes_signature": "#<\u001dj"
},
{
"id": 1193892,
"created_at": "2026-02-16T11:29:19.517796Z",
"text_signature": "lowerBound(uint256)",
"hex_signature": "0x74380a78",
"bytes_signature": "t8\nx"
},
{
"id": 1193891,
"created_at": "2026-02-16T11:29:19.513602Z",
"text_signature": "unsafeOverrideAdmin(address)",
"hex_signature": "0x19af86e7",
"bytes_signature": "\u0019¯ç"
},
{
"id": 1193890,
"created_at": "2026-02-16T11:29:19.503030Z",
"text_signature": "chainReinitialize(uint64,uint64)",
"hex_signature": "0xb5f214c0",
"bytes_signature": "µò\u0014À"
},
{
"id": 1193889,
"created_at": "2026-02-16T11:29:19.500757Z",
"text_signature": "nestedReinitialize(uint64,uint64)",
"hex_signature": "0xff57ab74",
"bytes_signature": "ÿW«t"
},
{
"id": 1193888,
"created_at": "2026-02-16T11:29:19.476846Z",
"text_signature": "setIsConsumingScheduledOp(bool,bytes32)",
"hex_signature": "0x8f9ababd",
"bytes_signature": "º½"
},
{
"id": 1193887,
"created_at": "2026-02-16T11:29:19.474164Z",
"text_signature": "fnUnrestricted()",
"hex_signature": "0x6f154d2d",
"bytes_signature": "o\u0015M-"
},
{
"id": 1193886,
"created_at": "2026-02-16T11:29:19.470824Z",
"text_signature": "fnRestricted()",
"hex_signature": "0x57a22111",
"bytes_signature": "W¢!\u0011"
},
{
"id": 1193885,
"created_at": "2026-02-16T11:29:19.466764Z",
"text_signature": "getBytesStorage(uint256)",
"hex_signature": "0x9b22f343",
"bytes_signature": "\"óC"
},
{
"id": 1193884,
"created_at": "2026-02-16T11:29:19.462272Z",
"text_signature": "getStringStorage(uint256)",
"hex_signature": "0xdf6e58d6",
"bytes_signature": "ßnXÖ"
},
{
"id": 1193883,
"created_at": "2026-02-16T11:29:19.454667Z",
"text_signature": "setInt256Slot(bytes32,int256)",
"hex_signature": "0x83681c5b",
"bytes_signature": "h\u001c["
},
{
"id": 1193882,
"created_at": "2026-02-16T11:29:19.452134Z",
"text_signature": "setUint256Slot(bytes32,uint256)",
"hex_signature": "0x4c650c86",
"bytes_signature": "Le\f"
},
{
"id": 1193881,
"created_at": "2026-02-16T11:29:19.449280Z",
"text_signature": "setBytes32Slot(bytes32,bytes32)",
"hex_signature": "0x6e0e0483",
"bytes_signature": "n\u000e\u0004"
},
{
"id": 1193880,
"created_at": "2026-02-16T11:29:19.446800Z",
"text_signature": "setBooleanSlot(bytes32,bool)",
"hex_signature": "0xa55a27f6",
"bytes_signature": "¥Z'ö"
},
{
"id": 1193879,
"created_at": "2026-02-16T11:29:19.444325Z",
"text_signature": "setAddressSlot(bytes32,address)",
"hex_signature": "0xb86c5dd5",
"bytes_signature": "¸l]Õ"
},
{
"id": 1193878,
"created_at": "2026-02-16T11:29:19.435442Z",
"text_signature": "mockFunctionEmptyReturn()",
"hex_signature": "0xc292d81c",
"bytes_signature": "ÂØ\u001c"
},
{
"id": 1193877,
"created_at": "2026-02-16T11:29:19.432672Z",
"text_signature": "customHash(bytes32,bytes32)",
"hex_signature": "0xeeb84e4a",
"bytes_signature": "î¸NJ"
},
{
"id": 1193876,
"created_at": "2026-02-16T11:29:19.423759Z",
"text_signature": "msgDataShort()",
"hex_signature": "0xff5f6b59",
"bytes_signature": "ÿ_kY"
},
{
"id": 1193875,
"created_at": "2026-02-16T11:29:19.411275Z",
"text_signature": "tstore(bytes32,int256)",
"hex_signature": "0x938ee4c8",
"bytes_signature": "äÈ"
},
{
"id": 1193874,
"created_at": "2026-02-16T11:29:19.409112Z",
"text_signature": "tloadInt256(bytes32)",
"hex_signature": "0x20656eb6",
"bytes_signature": " en¶"
},
{
"id": 1193873,
"created_at": "2026-02-16T11:29:19.403774Z",
"text_signature": "tloadBoolean(bytes32)",
"hex_signature": "0x85daa7b4",
"bytes_signature": "
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},
{
"id": 1193872,
"created_at": "2026-02-16T11:29:19.390735Z",
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