HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 1169224,
"next": "http://www.4byte.directory/api/v1/signatures/?format=api&ordering=-created_at&page=100",
"previous": "http://www.4byte.directory/api/v1/signatures/?format=api&ordering=-created_at&page=98",
"results": [
{
"id": 1192519,
"created_at": "2026-02-16T09:14:48.685624Z",
"text_signature": "testBitmapUnsetBatch()",
"hex_signature": "0x7b930907",
"bytes_signature": "{\t\u0007"
},
{
"id": 1192518,
"created_at": "2026-02-16T09:14:48.683783Z",
"text_signature": "testBitmapUnsetBatchAcrossMultipleBuckets()",
"hex_signature": "0xf269cb9f",
"bytes_signature": "òiË"
},
{
"id": 1192517,
"created_at": "2026-02-16T09:14:48.681697Z",
"text_signature": "testBitmapUnsetBatchWithinSingleBucket()",
"hex_signature": "0xdea6a7e0",
"bytes_signature": "Þ¦§à"
},
{
"id": 1192516,
"created_at": "2026-02-16T09:14:48.679911Z",
"text_signature": "testBitmapSetBatch()",
"hex_signature": "0x95b015d3",
"bytes_signature": "°\u0015Ó"
},
{
"id": 1192515,
"created_at": "2026-02-16T09:14:48.677953Z",
"text_signature": "testBitmapSetBatchAcrossMultipleBuckets()",
"hex_signature": "0x07a7a78e",
"bytes_signature": "\u0007§§"
},
{
"id": 1192514,
"created_at": "2026-02-16T09:14:48.675886Z",
"text_signature": "testBitmapSetBatchWithinSingleBucket()",
"hex_signature": "0xa2263a1a",
"bytes_signature": "¢&:\u001a"
},
{
"id": 1192513,
"created_at": "2026-02-16T09:14:48.673882Z",
"text_signature": "testBitmapClaimWithToggle()",
"hex_signature": "0x53b42e63",
"bytes_signature": "S´.c"
},
{
"id": 1192512,
"created_at": "2026-02-16T09:14:48.671732Z",
"text_signature": "testBitmapClaimWithGetSet()",
"hex_signature": "0xc2a54166",
"bytes_signature": "Â¥Af"
},
{
"id": 1192511,
"created_at": "2026-02-16T09:14:48.669542Z",
"text_signature": "testBitmapToggle(uint256,bool)",
"hex_signature": "0xb2828f02",
"bytes_signature": "²\u0002"
},
{
"id": 1192510,
"created_at": "2026-02-16T09:14:48.667371Z",
"text_signature": "testBitmapToggle()",
"hex_signature": "0x60b9fdce",
"bytes_signature": "`¹ýÎ"
},
{
"id": 1192509,
"created_at": "2026-02-16T09:14:48.665523Z",
"text_signature": "testBitmapSetTo(uint256,uint256)",
"hex_signature": "0x50278e6d",
"bytes_signature": "P'm"
},
{
"id": 1192508,
"created_at": "2026-02-16T09:14:48.663432Z",
"text_signature": "testBitmapSetTo(uint256,bool,uint256)",
"hex_signature": "0xe707b182",
"bytes_signature": "ç\u0007±"
},
{
"id": 1192507,
"created_at": "2026-02-16T09:14:48.661556Z",
"text_signature": "testBitmapSetTo()",
"hex_signature": "0x69f3da6d",
"bytes_signature": "ióÚm"
},
{
"id": 1192506,
"created_at": "2026-02-16T09:14:48.659699Z",
"text_signature": "testBitmapUnset(uint256)",
"hex_signature": "0xfe47494e",
"bytes_signature": "þGIN"
},
{
"id": 1192505,
"created_at": "2026-02-16T09:14:48.657616Z",
"text_signature": "testBitmapUnset()",
"hex_signature": "0x98fcd940",
"bytes_signature": "üÙ@"
},
{
"id": 1192504,
"created_at": "2026-02-16T09:14:48.655585Z",
"text_signature": "testBitmapSet(uint256)",
"hex_signature": "0x71a763e9",
"bytes_signature": "q§cé"
},
{
"id": 1192503,
"created_at": "2026-02-16T09:14:48.653588Z",
"text_signature": "testBitmapSet()",
"hex_signature": "0xf58009c8",
"bytes_signature": "õ\tÈ"
},
{
"id": 1192502,
"created_at": "2026-02-16T09:14:48.651798Z",
"text_signature": "testBitmapSetAndGet(uint256)",
"hex_signature": "0x5f7362e4",
"bytes_signature": "_sbä"
},
{
"id": 1192501,
"created_at": "2026-02-16T09:14:48.649597Z",
"text_signature": "testBitmapGet(uint256)",
"hex_signature": "0xde0e8b52",
"bytes_signature": "Þ\u000eR"
},
{
"id": 1192500,
"created_at": "2026-02-16T09:14:48.647641Z",
"text_signature": "testBitmapGet()",
"hex_signature": "0x69b35174",
"bytes_signature": "i³Qt"
},
{
"id": 1192499,
"created_at": "2026-02-16T09:14:48.645023Z",
"text_signature": "claimWithToggle(uint256)",
"hex_signature": "0x4ea50206",
"bytes_signature": "N¥\u0002\u0006"
},
{
"id": 1192498,
"created_at": "2026-02-16T09:14:48.642689Z",
"text_signature": "claimWithGetSet(uint256)",
"hex_signature": "0x4bb013e6",
"bytes_signature": "K°\u0013æ"
},
{
"id": 1192497,
"created_at": "2026-02-16T09:14:48.637160Z",
"text_signature": "testCdFallbackMaskTrick(uint256,uint256)",
"hex_signature": "0x43b2fecb",
"bytes_signature": "C²þË"
},
{
"id": 1192496,
"created_at": "2026-02-16T09:14:48.634610Z",
"text_signature": "testCdDecompressOnInvalidInput()",
"hex_signature": "0x25da3d62",
"bytes_signature": "%Ú=b"
},
{
"id": 1192495,
"created_at": "2026-02-16T09:14:48.632700Z",
"text_signature": "testCdCompress()",
"hex_signature": "0x2f99db69",
"bytes_signature": "/Ûi"
},
{
"id": 1192494,
"created_at": "2026-02-16T09:14:48.630462Z",
"text_signature": "_randomCd()",
"hex_signature": "0x27c625ca",
"bytes_signature": "'Æ%Ê"
},
{
"id": 1192493,
"created_at": "2026-02-16T09:14:48.628080Z",
"text_signature": "testFlzCompressDecompress2()",
"hex_signature": "0xcf129db0",
"bytes_signature": "Ï\u0012°"
},
{
"id": 1192492,
"created_at": "2026-02-16T09:14:48.626081Z",
"text_signature": "testFlzCompressDecompress()",
"hex_signature": "0xed9b9bb9",
"bytes_signature": "í¹"
},
{
"id": 1192491,
"created_at": "2026-02-16T09:14:48.617490Z",
"text_signature": "testTransferFromInsufficientBalanceReverts(address,uint256,uint256)",
"hex_signature": "0x7c0c5369",
"bytes_signature": "|\fSi"
},
{
"id": 1192490,
"created_at": "2026-02-16T09:14:48.614802Z",
"text_signature": "testTransferFromInsufficientAllowanceReverts(address,uint256,uint256)",
"hex_signature": "0x37e816d3",
"bytes_signature": "7è\u0016Ó"
},
{
"id": 1192489,
"created_at": "2026-02-16T09:14:48.612777Z",
"text_signature": "testTransferInsufficientBalanceReverts(address,uint256,uint256)",
"hex_signature": "0xe70629ce",
"bytes_signature": "ç\u0006)Î"
},
{
"id": 1192488,
"created_at": "2026-02-16T09:14:48.610409Z",
"text_signature": "testBurnInsufficientBalanceReverts(address,uint256,uint256)",
"hex_signature": "0xbe4733bc",
"bytes_signature": "¾G3¼"
},
{
"id": 1192487,
"created_at": "2026-02-16T09:14:48.608008Z",
"text_signature": "testTransferFrom(address,address,address,uint256,uint256)",
"hex_signature": "0x48186a7f",
"bytes_signature": "H\u0018j"
},
{
"id": 1192486,
"created_at": "2026-02-16T09:14:48.603023Z",
"text_signature": "testTransferFromInsufficientAllowanceReverts()",
"hex_signature": "0xf63809d9",
"bytes_signature": "ö8\tÙ"
},
{
"id": 1192485,
"created_at": "2026-02-16T09:14:48.594416Z",
"text_signature": "check_IsPermit2AndValueIsNotInfinityTrickEquivalence(address,uint256)",
"hex_signature": "0xe90ea610",
"bytes_signature": "é\u000e¦\u0010"
},
{
"id": 1192484,
"created_at": "2026-02-16T09:14:48.591736Z",
"text_signature": "check_IsNotUint256MaxTrickEquivalence(uint256)",
"hex_signature": "0x0165c281",
"bytes_signature": "\u0001eÂ"
},
{
"id": 1192483,
"created_at": "2026-02-16T09:14:48.589261Z",
"text_signature": "testTransferFrom(address,uint256)",
"hex_signature": "0x2e4ebd19",
"bytes_signature": ".N½\u0019"
},
{
"id": 1192482,
"created_at": "2026-02-16T09:14:48.587086Z",
"text_signature": "testPermitToPermit2(address,uint256)",
"hex_signature": "0xafcb5b11",
"bytes_signature": "¯Ë[\u0011"
},
{
"id": 1192481,
"created_at": "2026-02-16T09:14:48.584889Z",
"text_signature": "testApproveToPermit2(address,uint256)",
"hex_signature": "0x690b0909",
"bytes_signature": "i\u000b\t\t"
},
{
"id": 1192480,
"created_at": "2026-02-16T09:14:48.581808Z",
"text_signature": "testBase64DecodeSentenceGas()",
"hex_signature": "0x3c254232",
"bytes_signature": "<%B2"
},
{
"id": 1192479,
"created_at": "2026-02-16T09:14:48.579642Z",
"text_signature": "testBase64DecodeShortStringGas()",
"hex_signature": "0xcad71c04",
"bytes_signature": "Ê×\u001c\u0004"
},
{
"id": 1192478,
"created_at": "2026-02-16T09:14:48.577275Z",
"text_signature": "testBase64WordBoundary()",
"hex_signature": "0x975a7346",
"bytes_signature": "ZsF"
},
{
"id": 1192477,
"created_at": "2026-02-16T09:14:48.575027Z",
"text_signature": "testBase64EncodeSentence()",
"hex_signature": "0x88cb4a21",
"bytes_signature": "ËJ!"
},
{
"id": 1192476,
"created_at": "2026-02-16T09:14:48.572792Z",
"text_signature": "testBase64EncodeToStringWithNoPadding()",
"hex_signature": "0xab3213e1",
"bytes_signature": "«2\u0013á"
},
{
"id": 1192475,
"created_at": "2026-02-16T09:14:48.570506Z",
"text_signature": "testBase64EncodeToStringWithSinglePadding()",
"hex_signature": "0x43830147",
"bytes_signature": "C\u0001G"
},
{
"id": 1192474,
"created_at": "2026-02-16T09:14:48.568121Z",
"text_signature": "testBase64EncodeToStringWithDoublePadding()",
"hex_signature": "0x8d6814d2",
"bytes_signature": "h\u0014Ò"
},
{
"id": 1192473,
"created_at": "2026-02-16T09:14:48.566115Z",
"text_signature": "testBase64EncodeShortStrings()",
"hex_signature": "0x98365199",
"bytes_signature": "6Q"
},
{
"id": 1192472,
"created_at": "2026-02-16T09:14:48.564096Z",
"text_signature": "testBase64EncodeEmptyString()",
"hex_signature": "0x67eac136",
"bytes_signature": "gêÁ6"
},
{
"id": 1192471,
"created_at": "2026-02-16T09:14:48.561528Z",
"text_signature": "_epochDayToDateOriginal2(uint256)",
"hex_signature": "0xb7bf0ec4",
"bytes_signature": "·¿\u000eÄ"
},
{
"id": 1192470,
"created_at": "2026-02-16T09:14:48.559156Z",
"text_signature": "_epochDayToDateOriginal(uint256)",
"hex_signature": "0x021aabdc",
"bytes_signature": "\u0002\u001a«Ü"
},
{
"id": 1192469,
"created_at": "2026-02-16T09:14:48.556794Z",
"text_signature": "_dateToEpochDayOriginal2(uint256,uint256,uint256)",
"hex_signature": "0xe9842cd2",
"bytes_signature": "é,Ò"
},
{
"id": 1192468,
"created_at": "2026-02-16T09:14:48.554447Z",
"text_signature": "_dateToEpochDayOriginal(uint256,uint256,uint256)",
"hex_signature": "0x3a184b9f",
"bytes_signature": ":\u0018K"
},
{
"id": 1192467,
"created_at": "2026-02-16T09:14:48.552017Z",
"text_signature": "testAddSubDiffSeconds(uint256,uint256)",
"hex_signature": "0xfdb26c4d",
"bytes_signature": "ý²lM"
},
{
"id": 1192466,
"created_at": "2026-02-16T09:14:48.549863Z",
"text_signature": "testAddSubDiffMinutes(uint256,uint256)",
"hex_signature": "0xb3010325",
"bytes_signature": "³\u0001\u0003%"
},
{
"id": 1192465,
"created_at": "2026-02-16T09:14:48.547630Z",
"text_signature": "testAddSubDiffHours(uint256,uint256)",
"hex_signature": "0xd3335f67",
"bytes_signature": "Ó3_g"
},
{
"id": 1192464,
"created_at": "2026-02-16T09:14:48.545497Z",
"text_signature": "testAddSubDiffDays(uint256,uint256)",
"hex_signature": "0x69c3ec9d",
"bytes_signature": "iÃì"
},
{
"id": 1192463,
"created_at": "2026-02-16T09:14:48.543221Z",
"text_signature": "testAddSubDiffMonths(uint256,uint256)",
"hex_signature": "0xebe39422",
"bytes_signature": "ëã\""
},
{
"id": 1192462,
"created_at": "2026-02-16T09:14:48.540839Z",
"text_signature": "testDateTimeArithmeticReverts()",
"hex_signature": "0x7ecbf74c",
"bytes_signature": "~Ë÷L"
},
{
"id": 1192461,
"created_at": "2026-02-16T09:14:48.525337Z",
"text_signature": "testAddSubDiffYears(uint256,uint256)",
"hex_signature": "0xb52b2b68",
"bytes_signature": "µ++h"
},
{
"id": 1192460,
"created_at": "2026-02-16T09:14:48.523212Z",
"text_signature": "testIsWeekEnd(uint256)",
"hex_signature": "0x5fdf4639",
"bytes_signature": "_ßF9"
},
{
"id": 1192459,
"created_at": "2026-02-16T09:14:48.521089Z",
"text_signature": "testMondayTimestamp(uint256)",
"hex_signature": "0xb2032eea",
"bytes_signature": "²\u0003.ê"
},
{
"id": 1192458,
"created_at": "2026-02-16T09:14:48.518646Z",
"text_signature": "testMondayTimestamp()",
"hex_signature": "0xfc13ed64",
"bytes_signature": "ü\u0013íd"
},
{
"id": 1192457,
"created_at": "2026-02-16T09:14:48.516240Z",
"text_signature": "testNthWeekdayInMonthOfYearTimestamp(uint256,uint256,uint256,uint256)",
"hex_signature": "0x543b4b2d",
"bytes_signature": "T;K-"
},
{
"id": 1192456,
"created_at": "2026-02-16T09:14:48.513612Z",
"text_signature": "testNthWeekdayInMonthOfYearTimestamp()",
"hex_signature": "0x7b848642",
"bytes_signature": "{B"
},
{
"id": 1192455,
"created_at": "2026-02-16T09:14:48.510940Z",
"text_signature": "testIsSupportedTimestampFalse()",
"hex_signature": "0x34149ee0",
"bytes_signature": "4\u0014à"
},
{
"id": 1192454,
"created_at": "2026-02-16T09:14:48.508353Z",
"text_signature": "testIsSupportedTimestampTrue()",
"hex_signature": "0x681af053",
"bytes_signature": "h\u001aðS"
},
{
"id": 1192453,
"created_at": "2026-02-16T09:14:48.505503Z",
"text_signature": "testIsSupportedEpochDayFalse()",
"hex_signature": "0xf9a9490b",
"bytes_signature": "ù©I\u000b"
},
{
"id": 1192452,
"created_at": "2026-02-16T09:14:48.502698Z",
"text_signature": "testIsSupportedEpochDayTrue()",
"hex_signature": "0x07698197",
"bytes_signature": "\u0007i"
},
{
"id": 1192451,
"created_at": "2026-02-16T09:14:48.499850Z",
"text_signature": "testIsSupportedDateFalse()",
"hex_signature": "0x830956eb",
"bytes_signature": "\tVë"
},
{
"id": 1192450,
"created_at": "2026-02-16T09:14:48.497189Z",
"text_signature": "testIsSupportedDateTrue()",
"hex_signature": "0x7b6ebc0b",
"bytes_signature": "{n¼\u000b"
},
{
"id": 1192449,
"created_at": "2026-02-16T09:14:48.494754Z",
"text_signature": "testDayOfWeek()",
"hex_signature": "0x88c814bb",
"bytes_signature": "È\u0014»"
},
{
"id": 1192448,
"created_at": "2026-02-16T09:14:48.491121Z",
"text_signature": "testWeekday()",
"hex_signature": "0x938ae8d5",
"bytes_signature": "èÕ"
},
{
"id": 1192447,
"created_at": "2026-02-16T09:14:48.487143Z",
"text_signature": "testDaysInMonth(uint256,uint256)",
"hex_signature": "0xf607e1f2",
"bytes_signature": "ö\u0007áò"
},
{
"id": 1192446,
"created_at": "2026-02-16T09:14:48.483173Z",
"text_signature": "testDaysInMonth()",
"hex_signature": "0x8a081765",
"bytes_signature": "\b\u0017e"
},
{
"id": 1192445,
"created_at": "2026-02-16T09:14:48.479316Z",
"text_signature": "testIsLeapYear(uint256)",
"hex_signature": "0x87dbff92",
"bytes_signature": "Ûÿ"
},
{
"id": 1192444,
"created_at": "2026-02-16T09:14:48.475208Z",
"text_signature": "testIsLeapYear()",
"hex_signature": "0x2e9f3f12",
"bytes_signature": ".?\u0012"
},
{
"id": 1192443,
"created_at": "2026-02-16T09:14:48.471692Z",
"text_signature": "testDateToAndFroTimestamp()",
"hex_signature": "0x05b60454",
"bytes_signature": "\u0005¶\u0004T"
},
{
"id": 1192442,
"created_at": "2026-02-16T09:14:48.467593Z",
"text_signature": "testDateToAndFroEpochDay()",
"hex_signature": "0xf3ba926a",
"bytes_signature": "óºj"
},
{
"id": 1192441,
"created_at": "2026-02-16T09:14:48.463955Z",
"text_signature": "testEpochDayToDate(uint256)",
"hex_signature": "0x03b3101b",
"bytes_signature": "\u0003³\u0010\u001b"
},
{
"id": 1192440,
"created_at": "2026-02-16T09:14:48.460238Z",
"text_signature": "testDaysToDate()",
"hex_signature": "0x1b062435",
"bytes_signature": "\u001b\u0006$5"
},
{
"id": 1192439,
"created_at": "2026-02-16T09:14:48.456870Z",
"text_signature": "testEpochDayToDateDifferential2(uint256)",
"hex_signature": "0x978fd1f3",
"bytes_signature": "Ñó"
},
{
"id": 1192438,
"created_at": "2026-02-16T09:14:48.453566Z",
"text_signature": "testEpochDayToDateDifferential(uint256)",
"hex_signature": "0xe688eed7",
"bytes_signature": "æî×"
},
{
"id": 1192437,
"created_at": "2026-02-16T09:14:48.449643Z",
"text_signature": "testEpochDayToDateGas2()",
"hex_signature": "0xb45e1c2a",
"bytes_signature": "´^\u001c*"
},
{
"id": 1192436,
"created_at": "2026-02-16T09:14:48.446069Z",
"text_signature": "testEpochDayToDateGas()",
"hex_signature": "0x7c454112",
"bytes_signature": "|EA\u0012"
},
{
"id": 1192435,
"created_at": "2026-02-16T09:14:48.442676Z",
"text_signature": "testDateToEpochDayGas2()",
"hex_signature": "0x5b7f6242",
"bytes_signature": "[bB"
},
{
"id": 1192434,
"created_at": "2026-02-16T09:14:48.439186Z",
"text_signature": "testDateToEpochDayGas()",
"hex_signature": "0x1c2736e6",
"bytes_signature": "\u001c'6æ"
},
{
"id": 1192433,
"created_at": "2026-02-16T09:14:48.435977Z",
"text_signature": "testDateToEpochDay()",
"hex_signature": "0xae919b40",
"bytes_signature": "®@"
},
{
"id": 1192432,
"created_at": "2026-02-16T09:14:48.432719Z",
"text_signature": "testDateTimeMaxSupported()",
"hex_signature": "0x54d850da",
"bytes_signature": "TØPÚ"
},
{
"id": 1192431,
"created_at": "2026-02-16T09:14:48.427496Z",
"text_signature": "testUpgradeToAndCallRevertWithUnauthorized()",
"hex_signature": "0xc8f97393",
"bytes_signature": "Èùs"
},
{
"id": 1192430,
"created_at": "2026-02-16T09:14:48.424179Z",
"text_signature": "testUpgradeToAndCallRevertWithCustomError()",
"hex_signature": "0x2cc41104",
"bytes_signature": ",Ä\u0011\u0004"
},
{
"id": 1192429,
"created_at": "2026-02-16T09:14:48.420664Z",
"text_signature": "testUpgradeToAndCallRevertWithUpgradeFailed()",
"hex_signature": "0x6fb5d615",
"bytes_signature": "oµÖ\u0015"
},
{
"id": 1192428,
"created_at": "2026-02-16T09:14:48.417219Z",
"text_signature": "testUpgradeToAndCall()",
"hex_signature": "0x44a3b425",
"bytes_signature": "D£´%"
},
{
"id": 1192427,
"created_at": "2026-02-16T09:14:48.413519Z",
"text_signature": "testUpgradeToRevertWithUpgradeFailed()",
"hex_signature": "0xdd343faa",
"bytes_signature": "Ý4?ª"
},
{
"id": 1192426,
"created_at": "2026-02-16T09:14:48.409922Z",
"text_signature": "testUpgradeToRevertWithUnauthorized()",
"hex_signature": "0x708d5a4f",
"bytes_signature": "pZO"
},
{
"id": 1192425,
"created_at": "2026-02-16T09:14:48.406560Z",
"text_signature": "testUpgradeTo()",
"hex_signature": "0xa6211213",
"bytes_signature": "¦!\u0012\u0013"
},
{
"id": 1192424,
"created_at": "2026-02-16T09:14:48.396978Z",
"text_signature": "testMintWithNoApprovalReverts()",
"hex_signature": "0xb8a74cbd",
"bytes_signature": "¸§L½"
},
{
"id": 1192423,
"created_at": "2026-02-16T09:14:48.393449Z",
"text_signature": "testDepositWithNoApprovalReverts()",
"hex_signature": "0x204a17e1",
"bytes_signature": " J\u0017á"
},
{
"id": 1192422,
"created_at": "2026-02-16T09:14:48.390230Z",
"text_signature": "testRedeemWithNoShareAmountReverts()",
"hex_signature": "0x124ea18d",
"bytes_signature": "\u0012N¡"
},
{
"id": 1192421,
"created_at": "2026-02-16T09:14:48.386767Z",
"text_signature": "testWithdrawWithNoUnderlyingAmountReverts()",
"hex_signature": "0x358a8e25",
"bytes_signature": "5%"
},
{
"id": 1192420,
"created_at": "2026-02-16T09:14:48.383380Z",
"text_signature": "testRedeemWithNotEnoughShareAmountReverts()",
"hex_signature": "0x29109cb2",
"bytes_signature": ")\u0010²"
}
]
}