HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 1167575,
"next": "http://www.4byte.directory/api/v1/signatures/?format=api&ordering=-created_at&page=87",
"previous": "http://www.4byte.directory/api/v1/signatures/?format=api&ordering=-created_at&page=85",
"results": [
{
"id": 1192170,
"created_at": "2026-02-16T09:14:47.596337Z",
"text_signature": "testSortAddressesPsuedorandomBrutalizeUpperBits()",
"hex_signature": "0xac950829",
"bytes_signature": "¬\b)"
},
{
"id": 1192169,
"created_at": "2026-02-16T09:14:47.594170Z",
"text_signature": "testSortTestOverhead()",
"hex_signature": "0x3edfecc5",
"bytes_signature": ">ፏ"
},
{
"id": 1192168,
"created_at": "2026-02-16T09:14:47.591877Z",
"text_signature": "testSortMostlySame()",
"hex_signature": "0x5ccd9dc3",
"bytes_signature": "\\ÍÃ"
},
{
"id": 1192167,
"created_at": "2026-02-16T09:14:47.590007Z",
"text_signature": "testSortReversed()",
"hex_signature": "0xdd9bf442",
"bytes_signature": "ÝôB"
},
{
"id": 1192166,
"created_at": "2026-02-16T09:14:47.587551Z",
"text_signature": "testSortSorted()",
"hex_signature": "0x087fdf4f",
"bytes_signature": "\bßO"
},
{
"id": 1192165,
"created_at": "2026-02-16T09:14:47.585483Z",
"text_signature": "testSortPsuedorandomNonuniform()",
"hex_signature": "0x93f7d606",
"bytes_signature": "÷Ö\u0006"
},
{
"id": 1192164,
"created_at": "2026-02-16T09:14:47.583430Z",
"text_signature": "testSortPsuedorandom()",
"hex_signature": "0x2e615435",
"bytes_signature": ".aT5"
},
{
"id": 1192163,
"created_at": "2026-02-16T09:14:47.581343Z",
"text_signature": "testSortBasicCase()",
"hex_signature": "0xd1f2b0ab",
"bytes_signature": "Ñò°«"
},
{
"id": 1192162,
"created_at": "2026-02-16T09:14:47.579423Z",
"text_signature": "testInsertionSortPsuedorandom()",
"hex_signature": "0x1f52f9ef",
"bytes_signature": "\u001fRùï"
},
{
"id": 1192161,
"created_at": "2026-02-16T09:14:47.576499Z",
"text_signature": "testInitCode(address,uint256)",
"hex_signature": "0x5aefe7c1",
"bytes_signature": "ZïçÁ"
},
{
"id": 1192160,
"created_at": "2026-02-16T09:14:47.574375Z",
"text_signature": "_dummyData(uint256)",
"hex_signature": "0xd764889b",
"bytes_signature": "×d"
},
{
"id": 1192159,
"created_at": "2026-02-16T09:14:47.572413Z",
"text_signature": "argBytesHash()",
"hex_signature": "0x6d8744ad",
"bytes_signature": "mD"
},
{
"id": 1192158,
"created_at": "2026-02-16T09:14:47.570225Z",
"text_signature": "testCloneWithImmutableArgsRevertsIfDataTooBig()",
"hex_signature": "0x4c7af390",
"bytes_signature": "Lzó"
},
{
"id": 1192157,
"created_at": "2026-02-16T09:14:47.568274Z",
"text_signature": "testCloneDeteministicWithImmutableArgs()",
"hex_signature": "0x6abc5c20",
"bytes_signature": "j¼\\ "
},
{
"id": 1192156,
"created_at": "2026-02-16T09:14:47.566255Z",
"text_signature": "testCloneWithImmutableArgs()",
"hex_signature": "0x0e61f888",
"bytes_signature": "\u000eaø"
},
{
"id": 1192155,
"created_at": "2026-02-16T09:14:47.563873Z",
"text_signature": "getArgUint8(uint256)",
"hex_signature": "0x838f976d",
"bytes_signature": "m"
},
{
"id": 1192154,
"created_at": "2026-02-16T09:14:47.561557Z",
"text_signature": "getArgUint64(uint256)",
"hex_signature": "0xda47aac8",
"bytes_signature": "ÚGªÈ"
},
{
"id": 1192153,
"created_at": "2026-02-16T09:14:47.559361Z",
"text_signature": "getArgUint256Array(uint256,uint256)",
"hex_signature": "0x1bb09b2d",
"bytes_signature": "\u001b°-"
},
{
"id": 1192152,
"created_at": "2026-02-16T09:14:47.556986Z",
"text_signature": "getArgUint256(uint256)",
"hex_signature": "0x5fac7a0b",
"bytes_signature": "_¬z\u000b"
},
{
"id": 1192151,
"created_at": "2026-02-16T09:14:47.554641Z",
"text_signature": "getArgAddress(uint256)",
"hex_signature": "0x18f4d8a4",
"bytes_signature": "\u0018ôؤ"
},
{
"id": 1192150,
"created_at": "2026-02-16T09:14:47.552239Z",
"text_signature": "getArgBytes(uint256,uint256)",
"hex_signature": "0xa61b743d",
"bytes_signature": "¦\u001bt="
},
{
"id": 1192149,
"created_at": "2026-02-16T09:14:47.549907Z",
"text_signature": "_shouldBehaveLikeClone(address,uint256)",
"hex_signature": "0x89f6f712",
"bytes_signature": "ö÷\u0012"
},
{
"id": 1192148,
"created_at": "2026-02-16T09:14:47.547244Z",
"text_signature": "_canReceiveETHCorrectly(address,uint256)",
"hex_signature": "0x411dab4e",
"bytes_signature": "A\u001d«N"
},
{
"id": 1192147,
"created_at": "2026-02-16T09:14:47.544448Z",
"text_signature": "getCalldataHash()",
"hex_signature": "0x985cedf6",
"bytes_signature": "\\íö"
},
{
"id": 1192146,
"created_at": "2026-02-16T09:14:47.538595Z",
"text_signature": "_testBurn(uint256)",
"hex_signature": "0x8e31a971",
"bytes_signature": "1©q"
},
{
"id": 1192145,
"created_at": "2026-02-16T09:14:47.536044Z",
"text_signature": "_testBurnView(uint256)",
"hex_signature": "0x2212eb5a",
"bytes_signature": "\"\u0012ëZ"
},
{
"id": 1192144,
"created_at": "2026-02-16T09:14:47.533344Z",
"text_signature": "_testBurnPure(uint256)",
"hex_signature": "0x4256f79e",
"bytes_signature": "BV÷"
},
{
"id": 1192143,
"created_at": "2026-02-16T09:14:47.530732Z",
"text_signature": "testBurnTiming()",
"hex_signature": "0x26b301d8",
"bytes_signature": "&³\u0001Ø"
},
{
"id": 1192142,
"created_at": "2026-02-16T09:14:47.528373Z",
"text_signature": "testBurnViewTiming()",
"hex_signature": "0x7796802c",
"bytes_signature": "w,"
},
{
"id": 1192141,
"created_at": "2026-02-16T09:14:47.526333Z",
"text_signature": "testBurnPureTiming()",
"hex_signature": "0x77ca896e",
"bytes_signature": "wÊn"
},
{
"id": 1192140,
"created_at": "2026-02-16T09:14:47.523852Z",
"text_signature": "testBurnView(uint256)",
"hex_signature": "0x08ecdcaf",
"bytes_signature": "\bìܯ"
},
{
"id": 1192139,
"created_at": "2026-02-16T09:14:47.521543Z",
"text_signature": "testBurnPure(uint256)",
"hex_signature": "0x585c3e9b",
"bytes_signature": "X\\>"
},
{
"id": 1192138,
"created_at": "2026-02-16T09:14:47.518571Z",
"text_signature": "testBurnView()",
"hex_signature": "0xbf8e9143",
"bytes_signature": "¿C"
},
{
"id": 1192137,
"created_at": "2026-02-16T09:14:47.516481Z",
"text_signature": "testBurnPure()",
"hex_signature": "0x2c36709c",
"bytes_signature": ",6p"
},
{
"id": 1192136,
"created_at": "2026-02-16T09:14:47.512325Z",
"text_signature": "testAuxPackEquivalence(uint224,uint32)",
"hex_signature": "0x8bd80dd6",
"bytes_signature": "Ø\rÖ"
},
{
"id": 1192135,
"created_at": "2026-02-16T09:14:47.510079Z",
"text_signature": "check_AuxPackEquivalence(uint224,uint32)",
"hex_signature": "0xe827f390",
"bytes_signature": "è'ó"
},
{
"id": 1192134,
"created_at": "2026-02-16T09:14:47.507715Z",
"text_signature": "testOwnerOfNonExistent(uint256)",
"hex_signature": "0x38e224c5",
"bytes_signature": "8â$Å"
},
{
"id": 1192133,
"created_at": "2026-02-16T09:14:47.505063Z",
"text_signature": "testSafeMintToERC721RecipientWithWrongReturnData(uint256)",
"hex_signature": "0x685c26c8",
"bytes_signature": "h\\&È"
},
{
"id": 1192132,
"created_at": "2026-02-16T09:14:47.502355Z",
"text_signature": "testSafeMintToRevertingERC721RecipientReverts(uint256)",
"hex_signature": "0xec2e7023",
"bytes_signature": "ì.p#"
},
{
"id": 1192131,
"created_at": "2026-02-16T09:14:47.499612Z",
"text_signature": "testSafeMintToNonERC721RecipientReverts(uint256)",
"hex_signature": "0x6e2a2a0f",
"bytes_signature": "n**\u000f"
},
{
"id": 1192130,
"created_at": "2026-02-16T09:14:47.497263Z",
"text_signature": "testSafeTransferFromToERC721RecipientWithWrongReturnDataReverts(uint256)",
"hex_signature": "0x880f8fb7",
"bytes_signature": "\u000f·"
},
{
"id": 1192129,
"created_at": "2026-02-16T09:14:47.495214Z",
"text_signature": "testSafeTransferFromToRevertingERC721RecipientReverts(uint256)",
"hex_signature": "0xbbf11bb3",
"bytes_signature": "»ñ\u001b³"
},
{
"id": 1192128,
"created_at": "2026-02-16T09:14:47.492783Z",
"text_signature": "testSafeTransferFromToNonERC721RecipientReverts(uint256)",
"hex_signature": "0x403d847a",
"bytes_signature": "@=z"
},
{
"id": 1192127,
"created_at": "2026-02-16T09:14:47.490574Z",
"text_signature": "testTransferFromNotOwner(uint256)",
"hex_signature": "0xc7a6e6f9",
"bytes_signature": "Ǧæù"
},
{
"id": 1192126,
"created_at": "2026-02-16T09:14:47.488323Z",
"text_signature": "testTransferFromToZeroReverts(uint256)",
"hex_signature": "0x92ecf391",
"bytes_signature": "ìó"
},
{
"id": 1192125,
"created_at": "2026-02-16T09:14:47.485966Z",
"text_signature": "testTransferFromWrongFromReverts(address,uint256)",
"hex_signature": "0x03c3dad5",
"bytes_signature": "\u0003ÃÚÕ"
},
{
"id": 1192124,
"created_at": "2026-02-16T09:14:47.483740Z",
"text_signature": "testTransferFromNotExistentReverts(address,address,uint256)",
"hex_signature": "0x08defad5",
"bytes_signature": "\bÞúÕ"
},
{
"id": 1192123,
"created_at": "2026-02-16T09:14:47.481480Z",
"text_signature": "testApproveUnauthorizedReverts(uint256)",
"hex_signature": "0x051fb72c",
"bytes_signature": "\u0005\u001f·,"
},
{
"id": 1192122,
"created_at": "2026-02-16T09:14:47.479112Z",
"text_signature": "testApproveNonExistentReverts(uint256,address)",
"hex_signature": "0xb9e1d5f9",
"bytes_signature": "¹áÕù"
},
{
"id": 1192121,
"created_at": "2026-02-16T09:14:47.476682Z",
"text_signature": "testDoubleBurnReverts(uint256)",
"hex_signature": "0x691b2451",
"bytes_signature": "i\u001b$Q"
},
{
"id": 1192120,
"created_at": "2026-02-16T09:14:47.474659Z",
"text_signature": "testBurnNonExistentReverts(uint256)",
"hex_signature": "0xa6ea465a",
"bytes_signature": "¦êFZ"
},
{
"id": 1192119,
"created_at": "2026-02-16T09:14:47.472640Z",
"text_signature": "testDoubleMintReverts(uint256)",
"hex_signature": "0xbe5e6c10",
"bytes_signature": "¾^l\u0010"
},
{
"id": 1192118,
"created_at": "2026-02-16T09:14:47.470396Z",
"text_signature": "testMintToZeroReverts(uint256)",
"hex_signature": "0xc04469cb",
"bytes_signature": "ÀDiË"
},
{
"id": 1192117,
"created_at": "2026-02-16T09:14:47.467543Z",
"text_signature": "testSafeMintToEOA(uint256)",
"hex_signature": "0xd88b369c",
"bytes_signature": "Ø6"
},
{
"id": 1192116,
"created_at": "2026-02-16T09:14:47.464714Z",
"text_signature": "testSafeTransferFromToEOA(uint256)",
"hex_signature": "0x2c221c85",
"bytes_signature": ",\"\u001c
"
},
{
"id": 1192115,
"created_at": "2026-02-16T09:14:47.462405Z",
"text_signature": "testTransferFromApproveAll(uint256)",
"hex_signature": "0x87bf8b3c",
"bytes_signature": "¿<"
},
{
"id": 1192114,
"created_at": "2026-02-16T09:14:47.460131Z",
"text_signature": "testTransferFromSelf(uint256)",
"hex_signature": "0xa5505c5f",
"bytes_signature": "¥P\\_"
},
{
"id": 1192113,
"created_at": "2026-02-16T09:14:47.458060Z",
"text_signature": "testTransferFrom(uint256)",
"hex_signature": "0x4cb4d968",
"bytes_signature": "L´Ùh"
},
{
"id": 1192112,
"created_at": "2026-02-16T09:14:47.456067Z",
"text_signature": "testApproveBurn(uint256)",
"hex_signature": "0xf052e120",
"bytes_signature": "ðRá "
},
{
"id": 1192111,
"created_at": "2026-02-16T09:14:47.453415Z",
"text_signature": "testExtraData2(uint256,uint256)",
"hex_signature": "0x9991da61",
"bytes_signature": "Úa"
},
{
"id": 1192110,
"created_at": "2026-02-16T09:14:47.451187Z",
"text_signature": "testExtraData(uint256)",
"hex_signature": "0xd75d3ae0",
"bytes_signature": "×]:à"
},
{
"id": 1192109,
"created_at": "2026-02-16T09:14:47.448765Z",
"text_signature": "testIsApprovedOrOwner(uint256)",
"hex_signature": "0xfa1b1947",
"bytes_signature": "ú\u001b\u0019G"
},
{
"id": 1192108,
"created_at": "2026-02-16T09:14:47.445547Z",
"text_signature": "testMintAndSetExtraDataUncheckedWithOverwrite(uint256,uint96)",
"hex_signature": "0x6ab42562",
"bytes_signature": "j´%b"
},
{
"id": 1192107,
"created_at": "2026-02-16T09:14:47.443177Z",
"text_signature": "testMintAndSetExtraDataUnchecked(uint256)",
"hex_signature": "0xf069f134",
"bytes_signature": "ðiñ4"
},
{
"id": 1192106,
"created_at": "2026-02-16T09:14:47.440131Z",
"text_signature": "testCannotExceedMaxBalance()",
"hex_signature": "0x98320711",
"bytes_signature": "2\u0007\u0011"
},
{
"id": 1192105,
"created_at": "2026-02-16T09:14:47.437860Z",
"text_signature": "testAuthorizedEquivalence(address,bool,bool)",
"hex_signature": "0xd11d7a63",
"bytes_signature": "Ñ\u001dzc"
},
{
"id": 1192104,
"created_at": "2026-02-16T09:14:47.435462Z",
"text_signature": "testSafetyOfCustomStorage(uint256,uint256)",
"hex_signature": "0x414e01b4",
"bytes_signature": "AN\u0001´"
},
{
"id": 1192103,
"created_at": "2026-02-16T09:14:47.427785Z",
"text_signature": "_expectApprovalForAllEvent(address,address,bool)",
"hex_signature": "0x34d5c359",
"bytes_signature": "4ÕÃY"
},
{
"id": 1192102,
"created_at": "2026-02-16T09:14:47.425495Z",
"text_signature": "_expectApprovalEvent(address,address,uint256)",
"hex_signature": "0xae364584",
"bytes_signature": "®6E"
},
{
"id": 1192101,
"created_at": "2026-02-16T09:14:47.422970Z",
"text_signature": "_expectTransferEvent(address,address,uint256)",
"hex_signature": "0x12fe6d24",
"bytes_signature": "\u0012þm$"
},
{
"id": 1192100,
"created_at": "2026-02-16T09:14:47.420233Z",
"text_signature": "_expectBurnEvent(address,uint256)",
"hex_signature": "0xd48ca857",
"bytes_signature": "Ô¨W"
},
{
"id": 1192099,
"created_at": "2026-02-16T09:14:47.417956Z",
"text_signature": "_expectMintEvent(address,uint256)",
"hex_signature": "0x9e220165",
"bytes_signature": "\"\u0001e"
},
{
"id": 1192098,
"created_at": "2026-02-16T09:14:47.414977Z",
"text_signature": "testERC721Hooks()",
"hex_signature": "0x0df1e657",
"bytes_signature": "\rñæW"
},
{
"id": 1192097,
"created_at": "2026-02-16T09:14:47.412422Z",
"text_signature": "_checkCounters()",
"hex_signature": "0xa3963833",
"bytes_signature": "£83"
},
{
"id": 1192096,
"created_at": "2026-02-16T09:14:47.409722Z",
"text_signature": "testEIP7702ProxyWithDefaultImplementation()",
"hex_signature": "0xa22a9c3f",
"bytes_signature": "¢*?"
},
{
"id": 1192095,
"created_at": "2026-02-16T09:14:47.407702Z",
"text_signature": "testEIP7702Proxy()",
"hex_signature": "0x04736051",
"bytes_signature": "\u0004s`Q"
},
{
"id": 1192094,
"created_at": "2026-02-16T09:14:47.404792Z",
"text_signature": "_checkBehavesLikeProxy(address)",
"hex_signature": "0xc4edad0a",
"bytes_signature": "Äí\n"
},
{
"id": 1192093,
"created_at": "2026-02-16T09:14:47.402244Z",
"text_signature": "unsetProxyDelegation()",
"hex_signature": "0x32c6d412",
"bytes_signature": "2ÆÔ\u0012"
},
{
"id": 1192092,
"created_at": "2026-02-16T09:14:47.399548Z",
"text_signature": "revertWithError()",
"hex_signature": "0x57eca1a5",
"bytes_signature": "Wì¡¥"
},
{
"id": 1192091,
"created_at": "2026-02-16T09:14:47.396919Z",
"text_signature": "upgradeProxyDelegation(address)",
"hex_signature": "0x1a37ef23",
"bytes_signature": "\u001a7ï#"
},
{
"id": 1192090,
"created_at": "2026-02-16T09:14:47.391882Z",
"text_signature": "testRevertRecursiveIndirectGuardedCall(uint8,bool)",
"hex_signature": "0xc3ad24b2",
"bytes_signature": "Ã$²"
},
{
"id": 1192089,
"created_at": "2026-02-16T09:14:47.389503Z",
"text_signature": "testRecursiveIndirectUnguardedCall(uint8,bool)",
"hex_signature": "0xedcdef90",
"bytes_signature": "íÍï"
},
{
"id": 1192088,
"created_at": "2026-02-16T09:14:47.386943Z",
"text_signature": "testRevertRecursiveDirectGuardedCall(uint8,bool)",
"hex_signature": "0x52140165",
"bytes_signature": "R\u0014\u0001e"
},
{
"id": 1192087,
"created_at": "2026-02-16T09:14:47.384648Z",
"text_signature": "testRecursiveDirectUnguardedCall(uint8,bool)",
"hex_signature": "0x097c2120",
"bytes_signature": "\t|! "
},
{
"id": 1192086,
"created_at": "2026-02-16T09:14:47.382406Z",
"text_signature": "testRevertRemoteCallback(uint8,bool)",
"hex_signature": "0xd3d7c273",
"bytes_signature": "Ó×Âs"
},
{
"id": 1192085,
"created_at": "2026-02-16T09:14:47.379978Z",
"text_signature": "testRevertReadGuardLocked(uint8,bool)",
"hex_signature": "0x5d1d81dd",
"bytes_signature": "]\u001dÝ"
},
{
"id": 1192084,
"created_at": "2026-02-16T09:14:47.377908Z",
"text_signature": "testRevertGuardLocked(uint8,bool)",
"hex_signature": "0xfae0e0c0",
"bytes_signature": "úààÀ"
},
{
"id": 1192083,
"created_at": "2026-02-16T09:14:47.375239Z",
"text_signature": "testSupportsERC7739()",
"hex_signature": "0x971d5d5c",
"bytes_signature": "\u001d]\\"
},
{
"id": 1192082,
"created_at": "2026-02-16T09:14:47.372265Z",
"text_signature": "_accountDomainStructFields(address)",
"hex_signature": "0xbcc34e98",
"bytes_signature": "¼ÃN"
},
{
"id": 1192081,
"created_at": "2026-02-16T09:14:47.369811Z",
"text_signature": "_testIsValidSignatureWontOutOfGas()",
"hex_signature": "0x4ae52ab2",
"bytes_signature": "Jå*²"
},
{
"id": 1192080,
"created_at": "2026-02-16T09:14:47.366969Z",
"text_signature": "testIsValidSignature(uint256)",
"hex_signature": "0x95b2f3e8",
"bytes_signature": "²óè"
},
{
"id": 1192079,
"created_at": "2026-02-16T09:14:47.363289Z",
"text_signature": "_basefee(address)",
"hex_signature": "0x8509a7a7",
"bytes_signature": "
\t§§"
},
{
"id": 1192078,
"created_at": "2026-02-16T09:14:47.360745Z",
"text_signature": "testBasefeeBytecodeContract()",
"hex_signature": "0x32d2acb7",
"bytes_signature": "2Ò¬·"
},
{
"id": 1192077,
"created_at": "2026-02-16T09:14:47.358066Z",
"text_signature": "_etchBasefeeContract()",
"hex_signature": "0x8ac0798d",
"bytes_signature": "Ày"
},
{
"id": 1192076,
"created_at": "2026-02-16T09:14:47.354867Z",
"text_signature": "testEfficientHashMaxStack()",
"hex_signature": "0x16c8f4d9",
"bytes_signature": "\u0016ÈôÙ"
},
{
"id": 1192075,
"created_at": "2026-02-16T09:14:47.352676Z",
"text_signature": "testEfficientHashMaxStack(uint256)",
"hex_signature": "0xcdadf26d",
"bytes_signature": "Íòm"
},
{
"id": 1192074,
"created_at": "2026-02-16T09:14:47.350026Z",
"text_signature": "testSha2(bytes32)",
"hex_signature": "0x1e63c7ce",
"bytes_signature": "\u001ecÇÎ"
},
{
"id": 1192073,
"created_at": "2026-02-16T09:14:47.347542Z",
"text_signature": "testEfficientHashEq()",
"hex_signature": "0xd8634dc3",
"bytes_signature": "ØcMÃ"
},
{
"id": 1192072,
"created_at": "2026-02-16T09:14:47.345414Z",
"text_signature": "testEfficientHashEq(bytes32,uint256)",
"hex_signature": "0xf60c11de",
"bytes_signature": "ö\f\u0011Þ"
},
{
"id": 1192071,
"created_at": "2026-02-16T09:14:47.343143Z",
"text_signature": "testEfficientHashBytesSlice()",
"hex_signature": "0xc7f76273",
"bytes_signature": "Ç÷bs"
}
]
}