Ape Curtis Testnet

Address

0x9d8423030E9883d511167E5458eeA7E179C3ADCE

Overview

APE Balance

Ape Curtis LogoApe Curtis LogoApe Curtis Logo4.029462775285330467 APE

Token Holdings

More Info

Transactions Sent

Latest: 29 days ago First: 239 days ago

Multichain Info

No addresses found

 Latest 25 from a total of 350 transactions

Transaction Hash
Method
Block
From
To
0x785875423daabca6268c9e1baf4db33c3f17999efa36d3f854f79f9b08ab6cdf
0x60806040161429432025-02-25 8:45:2929 days ago1740473129
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x2f7b373ba4e1bb1a44d4e0ef6ce5f7f64dc4299421182ca47a05eb3abbdfa3d7
0x60806040161213592025-02-24 14:52:0830 days ago1740408728
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x296a3e6c525985096fe59f780673e6e1ce2d79672e5713573d11c13279d066d7
0x60806040161092992025-02-24 4:54:0730 days ago1740372847
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xfab12acf097fdd2c3a9e9dd08b67a25853e4d9bfd5b6f6cbb86cf2388b7042b6
0x60806040160968262025-02-23 19:17:3931 days ago1740338259
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xc8e2b96cc22bef001c462880763a3ae9fe516095a8c8060a4d6abbdb869d4f3d
0x60806040153299742025-02-03 4:13:0151 days ago1738555981
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xbbe8e2e0e5030db6663525c2e020660297694bf895d67991dbe832d75e2663f4
0x60806040153207122025-02-02 20:35:2352 days ago1738528523
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x1e8fd3d143fc780f446acb129f6c03d33187e19ca620ecd0c35739dfbca00187
0x60806040151161282025-01-27 10:02:1358 days ago1737972133
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xc7cf803467942491ef294a4da082fce5bf0c2d15970b21aabd294a866562c59f
0x60806040149875532025-01-24 13:18:0661 days ago1737724686
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x74f26d6423ed4292ee05a8062c8333ff1392801c976760b8b60d9bd823a9bc19
0x60806040149677972025-01-24 1:21:5161 days ago1737681711
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xee238cace74ccbb7e9714d61c6b3384018b6d433475dca5d6f1ac6f36a161f34
0x60806040149661552025-01-24 0:07:1361 days ago1737677233
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xeda06f143d0415888a9bbb0e0e15c6f0b19c794bc013af84e230135275bdc55f
0x60806040149546012025-01-23 15:11:1062 days ago1737645070
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x3eec491571eb910727819638e908733ed0b9f8e64673f0cee584bebcbe090bd4
0x60806040149384382025-01-23 7:07:1062 days ago1737616030
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xc0934c4f9af88087cddfd651ac9f7043601547d2d7c6880f67b0c7e923d74d4c
0x60806040147811142025-01-19 20:02:3266 days ago1737316952
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x0c38d276761b1af8c5dca7eb11a203e0ee0b6a8495c3cd5c300be67c0458cc89
0x60806040147809822025-01-19 19:37:1066 days ago1737315430
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x86752c0fa647d82a178170bedf07cc04d397dbabf088cbe2dd9c97cfe1300b55
0x60806040147778732025-01-19 15:08:4966 days ago1737299329
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x94e4c02671df6f337172458fbc0eaac304b694d8a3a94b32d931c29d6ce7da56
0x60806040147776772025-01-19 14:47:0666 days ago1737298026
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x1445e153ab4d33557f78da5d1e526272bfbd24fb228d48ef52b5e9ebc6dbdf65
0x60806040145206312025-01-11 5:35:1074 days ago1736573710
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x10595e7079100d6fa4f331a9dd805f7de964602ea3c36fd9168ddce6f4192ace
0x60806040145016322025-01-10 5:20:4375 days ago1736486443
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x0b8f56515fc65446e8fcf55722fe7c88ee22315d1c0f9eb96eebda645c222415
0x60806040144218402025-01-07 14:56:0578 days ago1736261765
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x4d4328ee812f2650de2b31bf23053435166e711580cf2283adceb35b2e62d226
0x60806040143400902025-01-05 13:34:2380 days ago1736084063
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xbe57dbbb89bf23793285c765e2ebb8d49c0239edef49c2fc06c083609aab2368
0x60806040142487332024-12-30 4:39:2086 days ago1735533560
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x479a6d050c735a00dc25e407f3729d503a74dd7bcbb4e3ffc26417fb1ee57bda
0x60806040141801722024-12-26 2:22:4890 days ago1735179768
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xc8f599bb3d9c0be10dfb20f20dab14e818bc6fe8cbc4a2145e0453e657b415b0
0x60806040139198112024-12-15 5:47:37101 days ago1734241657
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0xcb2636acf2ca418237456a81fb31434b949900a1c4255906404f10822791ee0f
0x60806040138798392024-12-13 19:49:37103 days ago1734119377
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
0x52542bcbb98fee10883ea954c3243c0da9e96addd7a4a14f8eb3a2f7d7aa1cfd
0x60806040137438112024-12-10 16:34:24106 days ago1733848464
0x9d842303...179C3ADCE
OUT
 Contract Creation
0 APE0.000003440.01
View all transactions

Latest 25 internal transactions (View All)

Parent Transaction Hash Block From To
0x1fb45ac3f8f306cb4585a03385da4f69a670ca25ac733605fc0f112fc78d68fb
125837052024-11-19 11:56:11127 days ago1732017371
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0168 APE
0xc57ef3a5732e91215f164e7cdf0bcc0aa9842499dd7978145b6873e48445e9f9
122244302024-11-16 7:40:24130 days ago1731742824
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0169 APE
0x185f0e21dfbfc8eb8afa97d201c3197c6623f14fae24bae89efccd6bda7689f1
122243702024-11-16 7:39:47130 days ago1731742787
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0183 APE
0x64f7fb011b645b50a8e0a92bb4b79dfe9d840cdc3dfa1dc7790a17c38e5b7441
122243072024-11-16 7:39:12130 days ago1731742752
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0165 APE
0x7860898beefccfbc9015cacc0124c168ea63e84ef60fc4436117b18412ebc94b
122242442024-11-16 7:38:36130 days ago1731742716
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0148 APE
0xd64c0a9c52f92da1ac993b93e12391fc3384f30b33cc002c4980e85959b7efb0
122241832024-11-16 7:38:01130 days ago1731742681
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.018 APE
0x226b6f41fe3207a8990f12a2889cd74001b2547bb2f22980c05d74953345e753
122241162024-11-16 7:37:25130 days ago1731742645
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0111 APE
0xaa946f0d9789ded9af6fe287112582953bee100f9fae70d0df165cd069d54d4a
122240542024-11-16 7:36:50130 days ago1731742610
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0131 APE
0xa5852b95f29d9e886d7e76e5ceb0a79ec437e2eb0a745e4e0924e9f4fd7ca9a5
122187912024-11-16 6:42:08130 days ago1731739328
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0138 APE
0xa76935ed5f0486f15e8005e6e6fc266d7f7451d92e45ccaa803de5525f2bb51d
121105772024-11-15 12:52:31131 days ago1731675151
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0101 APE
0xa395bc409c2269464bbaa39ff73e08e55f42f806d00b38e5f17ca39ff439e83c
120672362024-11-15 3:12:06131 days ago1731640326
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0108 APE
0x5550d2f5ef989a75aa74a95d95b80f490da096ed833992b144c8d043b5150c49
117217212024-11-11 9:21:56135 days ago1731316916
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0106 APE
0xf807e8c320e8b7e2ba1b5786ec2d91b4d9eb6f4b9dfadfa8d9557a3e5b898662
117216922024-11-11 9:21:20135 days ago1731316880
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0132 APE
0xf92519df103633023cdb0a325baf2aa1d07382b6bbb8e1cf2d1b88e433ad574b
94898442024-10-05 19:06:07172 days ago1728155167
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0137 APE
0xe9e33e4e421afebd4194a694a8d2119f1b3bdbfe6e4085632a12e281c0e1f40e
94898302024-10-05 19:05:31172 days ago1728155131
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0102 APE
0xa6746e87f7add543793c2939e4c40fb6808cede14d010b9f955910d6bc058d37
94898132024-10-05 19:04:55172 days ago1728155095
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0157 APE
0xaa3fc9a2b856ae509a7697cb1407cee522edc8f4ba8f2ec1d6061a110a5cdd74
94897972024-10-05 19:04:19172 days ago1728155059
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0199 APE
0xdaf0589e8d31d086364daf3b499df5cc0aef25c6942524f9b320de7dba5895dd
94897752024-10-05 19:03:43172 days ago1728155023
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0196 APE
0x304a0c2ae63a9ac8c4114cd63a1287de450aaef4bcf9da051a93f313b4ab7e4d
94897522024-10-05 19:03:07172 days ago1728154987
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0103 APE
0x1c6fe26d103bce491e409328011f5e4350f158952f371802588791ee62019e66
94897292024-10-05 19:02:31172 days ago1728154951
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0181 APE
0xb5e98b2527e3b0d85e5194afe42fbf5b5e60679730c4e82447feb3118431d0ab
94897012024-10-05 19:01:53172 days ago1728154913
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.013 APE
0x2e34254002d83cae0ab7db26d8699d7e17d532353d3cd6131e229ab65e2698d6
90971662024-09-30 0:45:04177 days ago1727657104
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0106 APE
0x897347160b272616157f2350ddf368f0a505f19ddcc067a6d5ffac8b2af437b6
90971192024-09-30 0:44:29177 days ago1727657069
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0188 APE
0x8796efd29c25caf1d45414aeca8adb98a02702f7dfb870ccb3cfc939fbe22313
90970732024-09-30 0:43:53177 days ago1727657033
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.015 APE
0xc07a17214d01234c8a954dd87fca4fa055b207c943677ae60a4930f1dbaa3265
90970242024-09-30 0:43:17177 days ago1727656997
0xb8faCa77...5Ef4a94bc
0x9d842303...179C3ADCE
0.0143 APE
View All Internal Transactions

Latest 14 Deposits

L2 Txn Hash L1 Deposit Txn Value Token
0x8a906ca3b4b1e0c112f3179d0423912823c330dfee5f726617ba762bc1f3b1222024-10-08 18:35:53169 days ago1728412553
0xa94fc3f55bdcb5746d3c1313b3b5c7f808787e746883fb4f1b732b9aa1d47e5c
0.0169 Sepolia APE (sAPE)
0x91cfa88131940e167e921261d760e6d5624ff30584b6c3be23a41fdf923f5fcd2024-10-08 18:34:36169 days ago1728412476
0x3caa408adb9e875866ff17f363a03148a5f454d2156eb2d9009768f9a656170a
0.0191 Sepolia APE (sAPE)
0x6e7df9c23631b438b4cf90732a2922e87964b50e44ff37bc43133602860271732024-10-08 18:33:19169 days ago1728412399
0x0f81ef2bac572f717afe4be2e1a8ca9c8978bcc409a78c133f39b9e518a59395
0.0126 Sepolia APE (sAPE)
0x5296e81c8c8aa3e68bda303ddc2eb29acb2d03740ca860d8e2421a328586d3a12024-10-08 18:32:02169 days ago1728412322
0x193cd3cfb906398070395c08a604fa250c2d041db22fe92354f2c003befd4c90
0.017 Sepolia APE (sAPE)
0x83156b5e2ce91fa9a4d99728ce5bd956ef571ce21605b5bec6f0953af4db5bf72024-10-08 18:30:46169 days ago1728412246
0x96cb1c6114a90944bbef17b0bcf8d347d811a72d0eb6f815213f62d25bc094ab
0.0182 Sepolia APE (sAPE)
0x6ad0cd7f98ce2bb40d8df0292f98bbe7934bdc8e086280a87290fe098da0c96e2024-10-01 4:59:54176 days ago1727758794
0x659bbec2b5c77bb124d05f0cd121c34ecd1dc0c5fd4920799db73c54f15d629f
0.0163 Sepolia APE (sAPE)
0xec77308649f03998515763ce2700de00f29f084b17f1b240dfd50c756f11e9362024-10-01 4:58:38176 days ago1727758718
0x37931307cf8a105626bfa12d4c63875ae254d392d4a94fcdf3200d3ded0ff8e8
0.0144 Sepolia APE (sAPE)
0x2309707f73cb642ff6554c7639d4fa4efed157bb6a857e943ab13a70ae2f74c72024-10-01 4:57:20176 days ago1727758640
0x4898ff8978263120c239fe0c8715de0ed81be4f5df3de9e8e9f0d50ac855d741
0.0172 Sepolia APE (sAPE)
0x4b5ecbffdec04e93b7682e2c6b48c19c2e0b8ddeb17a10076f26a867d36187b22024-10-01 4:56:03176 days ago1727758563
0x0ac62a34a87a861f74e7c3edb15f694d166aededae53779c020a3ef65f255b6d
0.0137 Sepolia APE (sAPE)
0x00641dc2b7a164fffddabf2cb1787428f50a1da565a91d9504083b2684200cde2024-10-01 4:54:46176 days ago1727758486
0x491a9e61de2313fcb05761c846803e190c1bb94990c358c72c8376e88c7d5e81
0.0169 Sepolia APE (sAPE)
0x5d776e758d89145c37fe24600f5e6cfe5694c4bba7fc4f28306ca567695760c62024-09-21 10:50:57186 days ago1726915857
0x294375804f5c873aa1c6c40b9903c4dc3b82bff492abd0e342b534c35bcee503
0.0139 Sepolia APE (sAPE)
0xf5a81c75bfa9e2fd6a1525ae3116b4329646d3dee208b7fc5603fc832e23799f2024-09-21 10:49:40186 days ago1726915780
0xa663d73b0f98797aea4012673b1e4e6a78e7b7eda8304d1aef3442a1f73bc134
0.0156 Sepolia APE (sAPE)
0x45ad997b06a7ff8026e3420e003e03b2899865d4b7c13f42e307bc30d5cfc6402024-09-10 4:18:27197 days ago1725941907
0x69fdbf6bbeeddb4f6db7be42b8f62d35a32f2cb23fe7f7db8ab0bdaa9f9300c8
0.0109 Sepolia APE (sAPE)
0xb12407c6881650de28bed60b8c9cc6aaf5b15fd09d4848e3edb20cbc7747d3c22024-09-10 4:17:10197 days ago1725941830
0x396a119ef0748b000527906f492c7637c59e29281664c7a215240391a46f85dd
0.0157 Sepolia APE (sAPE)

Latest 25 Withdrawals

L2 Txn Hash Value Token Status L1 Withdrawal Txn
0x39b174cc16b26eeaede18ec665d4e8dbe15e0a2e7cebfe4b9eb9b9d980077a032024-08-18 12:12:19220 days ago17239831390.0115 Sepolia APE (sAPE)Waitingn/a
0x4d3072aef5f6c85ca9590cf41b1178629683fc03e56c03dccbf866a28bd4f10b2024-08-18 12:11:45220 days ago17239831050.0163 Sepolia APE (sAPE)Waitingn/a
0x4440680e19d357110fa1c0b91bc037f83c7516ecad7bfcb6d9dcefcdd65af1172024-08-18 12:11:11220 days ago17239830710.0172 Sepolia APE (sAPE)Waitingn/a
0x8a4e86a11fd5eac1621a88f43c359bb05b5c0f65bf8c98faa1ebbea42580382f2024-08-18 12:10:37220 days ago17239830370.0164 Sepolia APE (sAPE)Waitingn/a
0x123630f985dd2be27bc071c0f1f7b1e5e0484b1ee1e157a9b7236c55e0278ae02024-08-18 12:10:02220 days ago17239830020.0106 Sepolia APE (sAPE)Waitingn/a
0x51cdbddd1fe6da729a16ea142c19e455e7a247c5d3f10202e06fe9a63e2d66c92024-08-18 12:09:28220 days ago17239829680.0151 Sepolia APE (sAPE)Waitingn/a
0xcf63fa5b46253a56b2b6eb5ca14b9539c6a1866d539de348e07289a82c012a8a2024-08-15 21:40:00222 days ago17237580000.0103 Sepolia APE (sAPE)Waitingn/a
0xd656f03970ca3d341e457540417c64a6450d3638776dc6aff294806a0ba63e272024-08-15 21:39:26222 days ago17237579660.0114 Sepolia APE (sAPE)Waitingn/a
0x89647cd231f670e5e79fa64f4c090c46ae6eb2e9852f409656f4917e99c70e6a2024-08-15 21:38:51222 days ago17237579310.0131 Sepolia APE (sAPE)Waitingn/a
0xcde4efe3862c7de39d19a2ccdc8ba420059a64b16da6a9de6a653d27976bb37a2024-08-15 21:38:17222 days ago17237578970.0121 Sepolia APE (sAPE)Waitingn/a
0x12b9e22a41c00ca35d354c805f490788e34f28e069de15fcbd3d66aa395854d62024-08-15 21:37:43222 days ago17237578630.0161 Sepolia APE (sAPE)Waitingn/a
0xeb128ecfd3a3496ade860c63bd87cc8c54d600941061d82ab415868e6da4d2282024-08-15 21:37:09222 days ago17237578290.011 Sepolia APE (sAPE)Waitingn/a
0x72f334ae7debcfe6fad86374ad90f70b571af775d60400f2aec2179608b92a632024-08-15 12:42:11223 days ago17237257310.0195 Sepolia APE (sAPE)Waitingn/a
0x86f41709bec2b332b88d9b9c3539a0eec0b8ef554a9855f78989ac3335a890e02024-08-15 12:41:36223 days ago17237256960.0101 Sepolia APE (sAPE)Waitingn/a
0x37bfd18f44675c07e97a8c338d7d14b46b05b2e416a66adeb06cfd91c27bc29d2024-08-15 12:41:01223 days ago17237256610.0136 Sepolia APE (sAPE)Waitingn/a
0x6904ee0389a3e3d9fb64744ce19756733ef365798fa2bd79c61fba84c2734b422024-08-15 12:40:26223 days ago17237256260.0123 Sepolia APE (sAPE)Waitingn/a
0xc4d44ead98782f7fdc655e097c093509b1b98d0070c69d097ba24cb0890691392024-08-15 12:39:52223 days ago17237255920.0106 Sepolia APE (sAPE)Waitingn/a
0x4c20f3250d26f6ece01fd0f8d0035a9a8f9f2d665c091866620a9b1d767048772024-08-15 12:37:23223 days ago17237254430.0148 Sepolia APE (sAPE)Waitingn/a
0xf63ad3832a0522b9cc08ca36fb0462997bbb44676760e64672128a1094fd173f2024-08-15 12:36:48223 days ago17237254080.0149 Sepolia APE (sAPE)Waitingn/a
0x35469f5a4cd6cb21ccbaa3ad9bd8e4694dd4630f5697cd320cc0ecf3a8dc942e2024-08-14 0:46:38224 days ago17235963980.018 Sepolia APE (sAPE)Waitingn/a
0x10466a710bb1189093e3e2f6ed17c7e164b6e575fae66d0295ebd1682c7188ed2024-08-14 0:46:04224 days ago17235963640.013 Sepolia APE (sAPE)Waitingn/a
0x480a912cb6071173d56ac48d8ff0abb16ad71138721642c491ea97e96423fde02024-08-14 0:45:30224 days ago17235963300.014 Sepolia APE (sAPE)Waitingn/a
0x7eebc9d198728daa3a3d4007c18a3cb82adf78b27b0538d67218bdd4b96a915b2024-08-14 0:44:56224 days ago17235962960.0195 Sepolia APE (sAPE)Waitingn/a
0x066113abdde9918f9b143a9de1587fef52f5f93ac91177a63d488d98ee3675982024-08-14 0:44:22224 days ago17235962620.0198 Sepolia APE (sAPE)Waitingn/a
0x33d6a0b94486976a5dacff5775be575ff33264017b28d8baad33fed8550297fe2024-08-14 0:43:48224 days ago17235962280.0115 Sepolia APE (sAPE)Waitingn/a
View All Withdrawals
Loading

Contract Name:
0 APE
Compiler Version
0
Optimization Enabled:
0 APE
Other Settings:
-NA-

Block Transaction Difficulty Gas Used Reward
View All Blocks Produced

Block Uncle Number Difficulty Gas Used Reward
View All Uncles
Loading
Loading

Validator Index Block Amount
View All Withdrawals

Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
[ Download: CSV Export  ]
[ Download: CSV Export  ]
[ Download: CSV Export  ]
[ Download: CSV Export  ]

A wallet address is a publicly available address that allows its owner to receive funds from another party. To access the funds in an address, you must have its private key. Learn more about addresses in our Knowledge Base.