HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 1185844,
"next": "http://www.4byte.directory/api/v1/signatures/?format=api&page=210",
"previous": "http://www.4byte.directory/api/v1/signatures/?format=api&page=208",
"results": [
{
"id": 1198139,
"created_at": "2026-02-23T18:00:07.346764Z",
"text_signature": "permissionedLiquidationThreshold()",
"hex_signature": "0x3f0292c2",
"bytes_signature": "?\u0002Â"
},
{
"id": 1198138,
"created_at": "2026-02-23T18:00:07.343978Z",
"text_signature": "operate(address,uint256,int256,int256,bool)",
"hex_signature": "0xf415afd7",
"bytes_signature": "ô\u0015¯×"
},
{
"id": 1198137,
"created_at": "2026-02-23T18:00:07.341372Z",
"text_signature": "operate(address,uint256,int256,int256)",
"hex_signature": "0xc1c8f15b",
"bytes_signature": "ÁÈñ["
},
{
"id": 1198136,
"created_at": "2026-02-23T18:00:07.338645Z",
"text_signature": "openRevenuePool()",
"hex_signature": "0xb754d58d",
"bytes_signature": "·TÕ"
},
{
"id": 1198135,
"created_at": "2026-02-23T18:00:07.335892Z",
"text_signature": "miscRevenuePool()",
"hex_signature": "0xc52d087b",
"bytes_signature": "Å-\b{"
},
{
"id": 1198134,
"created_at": "2026-02-23T18:00:07.329240Z",
"text_signature": "getTokenScalingFactor(address)",
"hex_signature": "0xd1903fed",
"bytes_signature": "Ñ?í"
},
{
"id": 1198133,
"created_at": "2026-02-23T18:00:07.326241Z",
"text_signature": "getRewardsExpenseRatio()",
"hex_signature": "0xacdd515a",
"bytes_signature": "¬ÝQZ"
},
{
"id": 1198132,
"created_at": "2026-02-23T18:00:07.323650Z",
"text_signature": "getRedeemFeeRatio()",
"hex_signature": "0x5cb3ccaa",
"bytes_signature": "\\³Ìª"
},
{
"id": 1198131,
"created_at": "2026-02-23T18:00:07.320418Z",
"text_signature": "getLiquidationExpenseRatio()",
"hex_signature": "0x9bd3bd38",
"bytes_signature": "Ó½8"
},
{
"id": 1198130,
"created_at": "2026-02-23T18:00:07.318171Z",
"text_signature": "getHarvesterRatio()",
"hex_signature": "0xa69f4935",
"bytes_signature": "¦I5"
},
{
"id": 1198129,
"created_at": "2026-02-23T18:00:07.315798Z",
"text_signature": "getFundingExpenseRatio()",
"hex_signature": "0x2354d83f",
"bytes_signature": "#TØ?"
},
{
"id": 1198128,
"created_at": "2026-02-23T18:00:07.313081Z",
"text_signature": "getFlashLoanFeeRatio()",
"hex_signature": "0xf899980a",
"bytes_signature": "ø\n"
},
{
"id": 1198127,
"created_at": "2026-02-23T18:00:07.310790Z",
"text_signature": "fxUSD()",
"hex_signature": "0x6dbe4bb9",
"bytes_signature": "m¾K¹"
},
{
"id": 1198126,
"created_at": "2026-02-23T18:00:07.307987Z",
"text_signature": "fxBASE()",
"hex_signature": "0x9d8c2910",
"bytes_signature": ")\u0010"
},
{
"id": 1198125,
"created_at": "2026-02-23T18:00:07.305521Z",
"text_signature": "counterparty()",
"hex_signature": "0xc3df6546",
"bytes_signature": "ÃßeF"
},
{
"id": 1198124,
"created_at": "2026-02-23T18:00:07.302324Z",
"text_signature": "closeRevenuePool()",
"hex_signature": "0x1ace9a7c",
"bytes_signature": "\u001aÎ|"
},
{
"id": 1198123,
"created_at": "2026-02-23T18:00:07.297642Z",
"text_signature": "alloc(address,address,uint96)",
"hex_signature": "0xd890cba9",
"bytes_signature": "ØË©"
},
{
"id": 1198122,
"created_at": "2026-02-23T18:00:07.293513Z",
"text_signature": "accumulatedPoolOpenFees(address)",
"hex_signature": "0x285ab4c3",
"bytes_signature": "(Z´Ã"
},
{
"id": 1198121,
"created_at": "2026-02-23T18:00:07.289664Z",
"text_signature": "accumulatedPoolMiscFees(address)",
"hex_signature": "0x93014f46",
"bytes_signature": "\u0001OF"
},
{
"id": 1198120,
"created_at": "2026-02-23T18:00:07.285623Z",
"text_signature": "accumulatedPoolCloseFees(address)",
"hex_signature": "0xf9260a8d",
"bytes_signature": "ù&\n"
},
{
"id": 1198119,
"created_at": "2026-02-23T18:00:07.273748Z",
"text_signature": "DEBT_REDUCER_ROLE()",
"hex_signature": "0x03018c11",
"bytes_signature": "\u0003\u0001\u0011"
},
{
"id": 1198118,
"created_at": "2026-02-23T14:35:30.530932Z",
"text_signature": "checkTty()",
"hex_signature": "0x629eb9a9",
"bytes_signature": "b¹©"
},
{
"id": 1198117,
"created_at": "2026-02-23T13:16:27.758123Z",
"text_signature": "outbound_pool()",
"hex_signature": "0x5267d815",
"bytes_signature": "RgØ\u0015"
},
{
"id": 1198116,
"created_at": "2026-02-23T13:16:27.756043Z",
"text_signature": "is_tx_broadcastable(bytes32,address)",
"hex_signature": "0xf9b3b5ee",
"bytes_signature": "ù³µî"
},
{
"id": 1198115,
"created_at": "2026-02-23T13:16:27.753154Z",
"text_signature": "is_submittable_utxo(bytes32,uint256,uint256,address)",
"hex_signature": "0x854ac5f0",
"bytes_signature": "
JÅð"
},
{
"id": 1198114,
"created_at": "2026-02-23T13:16:27.748934Z",
"text_signature": "is_activated()",
"hex_signature": "0x0e59cd4b",
"bytes_signature": "\u000eYÍK"
},
{
"id": 1198113,
"created_at": "2026-02-23T11:24:14.679253Z",
"text_signature": "testDecodeBlockHeader()",
"hex_signature": "0x78c80962",
"bytes_signature": "xÈ\tb"
},
{
"id": 1198112,
"created_at": "2026-02-23T11:24:14.676579Z",
"text_signature": "testRoundTrip()",
"hex_signature": "0xaafe5220",
"bytes_signature": "ªþR "
},
{
"id": 1198111,
"created_at": "2026-02-23T11:24:14.673922Z",
"text_signature": "testFromRlp()",
"hex_signature": "0xd32cb841",
"bytes_signature": "Ó,¸A"
},
{
"id": 1198110,
"created_at": "2026-02-23T11:24:14.665877Z",
"text_signature": "testToRlp()",
"hex_signature": "0x7e548070",
"bytes_signature": "~Tp"
},
{
"id": 1198109,
"created_at": "2026-02-23T07:17:10.915497Z",
"text_signature": "getEvmVersion()",
"hex_signature": "0xaa2bb222",
"bytes_signature": "ª+²\""
},
{
"id": 1198108,
"created_at": "2026-02-23T06:00:01.541434Z",
"text_signature": "withdrawFailedTransfers()",
"hex_signature": "0x44a9fc14",
"bytes_signature": "D©ü\u0014"
},
{
"id": 1198107,
"created_at": "2026-02-23T06:00:01.538554Z",
"text_signature": "verifyBuyOfferSignature((address,address,uint96,uint96,uint96,address,uint96,uint256,uint40),bytes)",
"hex_signature": "0xc20d3c8e",
"bytes_signature": "Â\r<"
},
{
"id": 1198106,
"created_at": "2026-02-23T06:00:01.534634Z",
"text_signature": "setMakerTakerFees(uint16,uint16)",
"hex_signature": "0xa84ab126",
"bytes_signature": "¨J±&"
},
{
"id": 1198105,
"created_at": "2026-02-23T06:00:01.527403Z",
"text_signature": "removeAcceptedTokens(address[])",
"hex_signature": "0xffdcc2d9",
"bytes_signature": "ÿÜÂÙ"
},
{
"id": 1198104,
"created_at": "2026-02-23T06:00:01.498872Z",
"text_signature": "isOfferCancelled(bytes32)",
"hex_signature": "0xc3f362bf",
"bytes_signature": "Ãób¿"
},
{
"id": 1198103,
"created_at": "2026-02-23T06:00:01.496403Z",
"text_signature": "isListingValid(address,uint256)",
"hex_signature": "0xc6a5b653",
"bytes_signature": "Æ¥¶S"
},
{
"id": 1198102,
"created_at": "2026-02-23T06:00:01.493524Z",
"text_signature": "initialize(address,address,uint16,uint16,address)",
"hex_signature": "0x95683e34",
"bytes_signature": "h>4"
},
{
"id": 1198101,
"created_at": "2026-02-23T06:00:01.490194Z",
"text_signature": "getTakerFeeRate()",
"hex_signature": "0x2ed37b3c",
"bytes_signature": ".Ó{<"
},
{
"id": 1198100,
"created_at": "2026-02-23T06:00:01.484817Z",
"text_signature": "getPutHash(uint256,address,uint96,uint96)",
"hex_signature": "0x3f8775b9",
"bytes_signature": "?u¹"
},
{
"id": 1198099,
"created_at": "2026-02-23T06:00:01.481503Z",
"text_signature": "getMakerFeeRate()",
"hex_signature": "0xc54e9527",
"bytes_signature": "ÅN'"
},
{
"id": 1198098,
"created_at": "2026-02-23T06:00:01.477785Z",
"text_signature": "getCurrentPutHash(uint256)",
"hex_signature": "0x96d16448",
"bytes_signature": "ÑdH"
},
{
"id": 1198097,
"created_at": "2026-02-23T06:00:01.475035Z",
"text_signature": "getBuyOfferHash((address,address,uint96,uint96,uint96,address,uint96,uint256,uint40))",
"hex_signature": "0xfa54fbd8",
"bytes_signature": "úTûØ"
},
{
"id": 1198096,
"created_at": "2026-02-23T06:00:01.471824Z",
"text_signature": "failedETHTransfers(address)",
"hex_signature": "0x205cf66a",
"bytes_signature": " \\öj"
},
{
"id": 1198095,
"created_at": "2026-02-23T06:00:01.468493Z",
"text_signature": "editListing(uint256,address,uint256,uint256)",
"hex_signature": "0x4cd458a4",
"bytes_signature": "LÔX¤"
},
{
"id": 1198094,
"created_at": "2026-02-23T06:00:01.465831Z",
"text_signature": "doesTokenMeetOfferRequirements((address,address,uint96,uint96,uint96,address,uint96,uint256,uint40),uint256)",
"hex_signature": "0xb19f3873",
"bytes_signature": "±8s"
},
{
"id": 1198093,
"created_at": "2026-02-23T06:00:01.462009Z",
"text_signature": "cancelBuyOffer((address,address,uint96,uint96,uint96,address,uint96,uint256,uint40))",
"hex_signature": "0xfb79776d",
"bytes_signature": "ûywm"
},
{
"id": 1198092,
"created_at": "2026-02-23T06:00:01.458637Z",
"text_signature": "calculateTakerFee(uint256)",
"hex_signature": "0x96635244",
"bytes_signature": "cRD"
},
{
"id": 1198091,
"created_at": "2026-02-23T06:00:01.455655Z",
"text_signature": "calculateMakerFee(uint256)",
"hex_signature": "0x63c4bf72",
"bytes_signature": "cĿr"
},
{
"id": 1198090,
"created_at": "2026-02-23T06:00:01.452571Z",
"text_signature": "buy(uint256,address,uint256,bytes32,(uint256,uint40,bytes))",
"hex_signature": "0xa7e26031",
"bytes_signature": "§â`1"
},
{
"id": 1198089,
"created_at": "2026-02-23T06:00:01.449688Z",
"text_signature": "addListing(uint256,address,uint256,uint40)",
"hex_signature": "0x94e85e80",
"bytes_signature": "è^"
},
{
"id": 1198088,
"created_at": "2026-02-23T06:00:01.447007Z",
"text_signature": "addAcceptedTokens(address[])",
"hex_signature": "0xa6217d0a",
"bytes_signature": "¦!}\n"
},
{
"id": 1198087,
"created_at": "2026-02-23T06:00:01.444180Z",
"text_signature": "acceptBuyOffer((address,address,uint96,uint96,uint96,address,uint96,uint256,uint40),uint256,bytes,bytes,uint256,bytes32)",
"hex_signature": "0x51bbefe6",
"bytes_signature": "Q»ïæ"
},
{
"id": 1198086,
"created_at": "2026-02-23T06:00:01.436624Z",
"text_signature": "MAX_DEADLINE_DURATION()",
"hex_signature": "0x7322ae37",
"bytes_signature": "s\"®7"
},
{
"id": 1198085,
"created_at": "2026-02-23T06:00:01.427595Z",
"text_signature": "BUY_OFFER_TYPEHASH()",
"hex_signature": "0x7f81692b",
"bytes_signature": "i+"
},
{
"id": 1198084,
"created_at": "2026-02-23T03:48:37.414697Z",
"text_signature": "testImplementationOfGas()",
"hex_signature": "0xa3eb875a",
"bytes_signature": "£ëZ"
},
{
"id": 1198083,
"created_at": "2026-02-23T03:48:37.407925Z",
"text_signature": "testIImplementationOf(address)",
"hex_signature": "0x9c8ceb84",
"bytes_signature": "ë"
},
{
"id": 1198082,
"created_at": "2026-02-23T03:48:37.095301Z",
"text_signature": "_randomBlockHeader()",
"hex_signature": "0x8efc387b",
"bytes_signature": "ü8{"
},
{
"id": 1198081,
"created_at": "2026-02-23T03:48:37.087178Z",
"text_signature": "testVerifyBlock()",
"hex_signature": "0xba886c12",
"bytes_signature": "ºl\u0012"
},
{
"id": 1198080,
"created_at": "2026-02-22T23:53:07.612247Z",
"text_signature": "transientMemoryTest(uint64,uint64)",
"hex_signature": "0x59cb13ae",
"bytes_signature": "YË\u0013®"
},
{
"id": 1198079,
"created_at": "2026-02-22T23:53:07.606967Z",
"text_signature": "createRevert()",
"hex_signature": "0x51c18ef9",
"bytes_signature": "QÁù"
},
{
"id": 1198078,
"created_at": "2026-02-22T23:53:07.602541Z",
"text_signature": "extcodecopyOp(address,uint64,uint64)",
"hex_signature": "0xee88416c",
"bytes_signature": "îAl"
},
{
"id": 1198077,
"created_at": "2026-02-22T23:53:07.596670Z",
"text_signature": "store(uint64)",
"hex_signature": "0x1d9a3bdd",
"bytes_signature": "\u001d;Ý"
},
{
"id": 1198076,
"created_at": "2026-02-22T23:53:07.592861Z",
"text_signature": "echo(uint64)",
"hex_signature": "0x70363622",
"bytes_signature": "p66\""
},
{
"id": 1198075,
"created_at": "2026-02-22T23:53:07.589491Z",
"text_signature": "blobhash(uint64)",
"hex_signature": "0xdfef204d",
"bytes_signature": "ßï M"
},
{
"id": 1198074,
"created_at": "2026-02-22T23:53:07.585323Z",
"text_signature": "fib(uint64)",
"hex_signature": "0xe78692bb",
"bytes_signature": "ç»"
},
{
"id": 1198073,
"created_at": "2026-02-22T23:53:07.580846Z",
"text_signature": "calldatacopy(uint64,uint64,uint64)",
"hex_signature": "0x6e65d31f",
"bytes_signature": "neÓ\u001f"
},
{
"id": 1198072,
"created_at": "2026-02-22T23:53:07.576575Z",
"text_signature": "calldataload(uint64)",
"hex_signature": "0x656561bc",
"bytes_signature": "eea¼"
},
{
"id": 1198071,
"created_at": "2026-02-22T23:53:07.570476Z",
"text_signature": "sstoreOp(uint64,uint64)",
"hex_signature": "0x64b46e1d",
"bytes_signature": "d´n\u001d"
},
{
"id": 1198070,
"created_at": "2026-02-22T23:53:07.567156Z",
"text_signature": "sloadOp(uint64)",
"hex_signature": "0xe0400e82",
"bytes_signature": "à@\u000e"
},
{
"id": 1198069,
"created_at": "2026-02-22T23:53:07.564436Z",
"text_signature": "blockhashOp(uint64)",
"hex_signature": "0xc1dca71a",
"bytes_signature": "熤\u001a"
},
{
"id": 1198068,
"created_at": "2026-02-22T23:53:07.558979Z",
"text_signature": "testMcopy(uint64,uint64,uint64,uint64)",
"hex_signature": "0xb7dee6d3",
"bytes_signature": "·ÞæÓ"
},
{
"id": 1198067,
"created_at": "2026-02-22T23:53:07.555957Z",
"text_signature": "testMsize(uint64)",
"hex_signature": "0xbcf0f2a1",
"bytes_signature": "¼ðò¡"
},
{
"id": 1198066,
"created_at": "2026-02-22T23:53:07.549486Z",
"text_signature": "expandMemory(uint64)",
"hex_signature": "0x5c3ff0c1",
"bytes_signature": "\\?ðÁ"
},
{
"id": 1198065,
"created_at": "2026-02-22T19:31:17.052168Z",
"text_signature": "testEncodeDecodeZeros()",
"hex_signature": "0x1bb4d5e6",
"bytes_signature": "\u001b´Õæ"
},
{
"id": 1198064,
"created_at": "2026-02-22T19:31:17.046385Z",
"text_signature": "testEncodeDecodeEmpty()",
"hex_signature": "0xd613feb5",
"bytes_signature": "Ö\u0013þµ"
},
{
"id": 1198063,
"created_at": "2026-02-22T16:20:52.114049Z",
"text_signature": "test_changeDefaultAdminDelay()",
"hex_signature": "0x377c3acb",
"bytes_signature": "7|:Ë"
},
{
"id": 1198062,
"created_at": "2026-02-22T16:20:52.104910Z",
"text_signature": "test_beginDefaultAdminTransfer()",
"hex_signature": "0xd8a6826d",
"bytes_signature": "ئm"
},
{
"id": 1198061,
"created_at": "2026-02-22T15:26:34.558696Z",
"text_signature": "test_pruneBalanceRecords_callsBurnPrunedTokens()",
"hex_signature": "0x90793673",
"bytes_signature": "y6s"
},
{
"id": 1198060,
"created_at": "2026-02-22T15:26:34.487938Z",
"text_signature": "test_pruneBalanceRecords()",
"hex_signature": "0x6b33d8f1",
"bytes_signature": "k3Øñ"
},
{
"id": 1198059,
"created_at": "2026-02-22T15:26:34.453413Z",
"text_signature": "_burnPrunedTokens(address,uint256,uint256)",
"hex_signature": "0xc74cdaf7",
"bytes_signature": "ÇLÚ÷"
},
{
"id": 1198058,
"created_at": "2026-02-22T13:15:59.447274Z",
"text_signature": "_nullPtr()",
"hex_signature": "0x5e5bc7a0",
"bytes_signature": "^[Ç "
},
{
"id": 1198057,
"created_at": "2026-02-22T13:15:58.638420Z",
"text_signature": "testAccumulatorPushShift()",
"hex_signature": "0xa3be6ccf",
"bytes_signature": "£¾lÏ"
},
{
"id": 1198056,
"created_at": "2026-02-22T13:15:58.536171Z",
"text_signature": "testEncodeBytes32(bytes32)",
"hex_signature": "0x27a35d82",
"bytes_signature": "'£]"
},
{
"id": 1198055,
"created_at": "2026-02-22T13:15:58.534360Z",
"text_signature": "testEncodeUint256(uint256)",
"hex_signature": "0x4fcb920f",
"bytes_signature": "OË\u000f"
},
{
"id": 1198054,
"created_at": "2026-02-22T13:15:58.532349Z",
"text_signature": "testEncodeAddress(address)",
"hex_signature": "0x64df9c8d",
"bytes_signature": "dß"
},
{
"id": 1198053,
"created_at": "2026-02-22T13:15:58.530328Z",
"text_signature": "testEncodeBool(bool)",
"hex_signature": "0xd706f60e",
"bytes_signature": "×\u0006ö\u000e"
},
{
"id": 1198052,
"created_at": "2026-02-22T13:15:58.528098Z",
"text_signature": "testEncodeEmpty()",
"hex_signature": "0x95eb29fa",
"bytes_signature": "ë)ú"
},
{
"id": 1198051,
"created_at": "2026-02-22T13:15:58.525829Z",
"text_signature": "testEncodeDecodeBytes32(bytes32)",
"hex_signature": "0x9f63aa46",
"bytes_signature": "cªF"
},
{
"id": 1198050,
"created_at": "2026-02-22T13:15:58.523793Z",
"text_signature": "testEncodeDecodeUint256(uint256)",
"hex_signature": "0x702c6c77",
"bytes_signature": "p,lw"
},
{
"id": 1198049,
"created_at": "2026-02-22T13:15:58.521563Z",
"text_signature": "testEncodeDecodeAddress(address)",
"hex_signature": "0x76d033f5",
"bytes_signature": "vÐ3õ"
},
{
"id": 1198048,
"created_at": "2026-02-22T13:15:58.513401Z",
"text_signature": "testEncodeDecodeBool(bool)",
"hex_signature": "0x56b8345a",
"bytes_signature": "V¸4Z"
},
{
"id": 1198047,
"created_at": "2026-02-22T12:19:11.771514Z",
"text_signature": "test_emitNotOk()",
"hex_signature": "0xfdde3ef3",
"bytes_signature": "ýÞ>ó"
},
{
"id": 1198046,
"created_at": "2026-02-22T12:19:11.767929Z",
"text_signature": "emitB()",
"hex_signature": "0xb20aa7d4",
"bytes_signature": "²\n§Ô"
},
{
"id": 1198045,
"created_at": "2026-02-22T11:20:58.653219Z",
"text_signature": "signWithNonceUnsafe(uint256,bytes32,uint256)",
"hex_signature": "0x2012783a",
"bytes_signature": " \u0012x:"
},
{
"id": 1198044,
"created_at": "2026-02-22T11:20:57.809564Z",
"text_signature": "testsignWithNonceUnsafeInvalidNoncesRevert()",
"hex_signature": "0xdcbdacab",
"bytes_signature": "ܽ¬«"
},
{
"id": 1198043,
"created_at": "2026-02-22T11:20:57.807000Z",
"text_signature": "testsignWithNonceUnsafeDigestSameNonceDeterministic(uint248,bytes32)",
"hex_signature": "0xcd63aea9",
"bytes_signature": "Íc®©"
},
{
"id": 1198042,
"created_at": "2026-02-22T11:20:57.804432Z",
"text_signature": "testsignWithNonceUnsafeDigestDifferentNonces(uint248,bytes32)",
"hex_signature": "0x6f731304",
"bytes_signature": "os\u0013\u0004"
},
{
"id": 1198041,
"created_at": "2026-02-22T11:20:57.796782Z",
"text_signature": "_secp256k1Order()",
"hex_signature": "0x1b1891c4",
"bytes_signature": "\u001b\u0018Ä"
},
{
"id": 1198040,
"created_at": "2026-02-22T07:12:49.454292Z",
"text_signature": "testRevert_burnBatch_unauthorizedAccount()",
"hex_signature": "0x956b76bf",
"bytes_signature": "kv¿"
}
]
}