Due to the adjustment of the company's development strategy, CloverPool (formerly BTC.com) has started anew and has been fully updated to a new brand and new domain name to continue to provide high-quality services to our customers.
USD($)Français
Hachage de Transaction
4e643bc73b099e75f2c835afa8d3c5f3f94157d1fac53ff37bc7d5ac45a1ff9e
Résumé
Hauteur
868,770
Confirmation
4,305
Horodatage
2024-11-04 02:32:11
Taille (rawtx)
6,588 Bytes
Taille Virtuelle
6,507 Bytes
Poids
26,025
Statut
Confirmé
Entrée
0.67528012 BTC
Sortie
0.67511745 BTC
Sigops
137
Frais
0.00016267 BTC
Taux de Frais(BTC/kVB)
0.00002500 BTC
Autres Explorateurs
BLOCKCHAIR
Transaction
Entrée (1)0.67528012 BTC
Sortie (201)0.67511745 BTC
4,305 Confirmation
Scripts d'Entrée
P2WPKH_V0
(witness)
3044022013db625374247727e098d7f9d9f015fad7c15f65e3ed75a60ba447c653735c8102202eebd3b8622c4ad8c4c581fac6c452cc67b223c1bf4a9987ece062aa3bf2ed6f01
03794a28b63a18a87b2ce86b08619aa2cc35feac184c2db45ac3ccbcedd97d216a
Scripts de Sortie
P2WSH_V0
OP_0 18231832279c2d1f78110d7f5f22c54660eda405020d34801ccfaf6dfe4b65ca
P2WPKH_V0
OP_0 87508523fde8c37027201b33af74de7f1c9a9207
P2WPKH_V0
OP_0 d527b86efb78b045a15ddfa2ad7f257d2f3201f7
P2PKH
OP_DUP OP_HASH160 d1eb44b6354209e5851a72428ff64e5097be1711 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 aaa720d5d1f4dedeb2fadfe87667437468d859e1
P2WPKH_V0
OP_0 0bd97a66f7e8850c8b7503b499e43f7b8257fd0d
P2PKH
OP_DUP OP_HASH160 42761bc7a9a6adb6412de53f89f42e72c79ff072 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 7da316521aa56e7edab244364af3405e82a41a59
P2WPKH_V0
OP_0 73b44c29a5f9c0d4bf02325b602c18c0a9169eb1
P2PKH
OP_DUP OP_HASH160 382fcaa4be16444321a0ef94d918f9af12a55f7c OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 2500d5c9b170c743ab22a1960cf93882ce07c629
P2WPKH_V0
OP_0 e4b70de131439eae7a9118e87eaa2bea751a3281
P2WPKH_V0
OP_0 1973e4392a4f6d7bee48e2081dd1dccc2edc8490
P2WPKH_V0
OP_0 cb65d99a5c83db281d1bc241f3f5be1cefb302e2
P2WPKH_V0
OP_0 81374583d8c955e31203d5079502ceea61252222
P2WPKH_V0
OP_0 ae6b5b28740a5cc6f3dfdb14a470ffd6eeae13db
P2WPKH_V0
OP_0 9e6b089da472c98856abc70059e71d75d326b121
P2WPKH_V0
OP_0 850264981483003fafca64c2f9a6ddf94d40fc03
P2WPKH_V0
OP_0 aa04ae390e3d912a20a6d5a89265bfebe49493b3
P2WPKH_V0
OP_0 867b6bddfc01dd01b4e2a9328907f254a70e0ce0
P2PKH
OP_DUP OP_HASH160 edb364b8526801fc50b9047617923eb9ba6532bc OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 5409ce774c9a4ed2dd1b8a3cdf80af23df056a08
P2WPKH_V0
OP_0 8ddf799db195346753bd4dfa612169ec3a252356
P2WPKH_V0
OP_0 64a46bc0bbddfa5f52b68cccf1862fb1df1e5060
P2WPKH_V0
OP_0 0b25d13547dca333bca2b7ada496a31819996919
P2WPKH_V0
OP_0 b36869aad8521bdb7f88c386711870f7b3a9ce3d
P2WPKH_V0
OP_0 b1859eb34586c769197ee1dcb991943f0c28c92b
P2WSH_V0
OP_0 b85c4e0cc5621fe91cb311ff0828030982d567dc95a3b8f4dd07416b3a53b302
P2PKH
OP_DUP OP_HASH160 1e058468d3cf7c6b3c7576780ebaef854aac642e OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 60665f81935f153327ff9b9f477d8b5ed70c28e9
P2WSH_V0
OP_0 0ee18bf0de4cc0fd279f2d8b531c20f4b00c933400b6b7abb58fdfd28d88f469
P2WPKH_V0
OP_0 570ffc5cb6dcb2894368892488240c04dd90e8cc
P2WPKH_V0
OP_0 4eb8f668fd5344a3c386c108a8d05fa2176c2daa
P2WPKH_V0
OP_0 3d9b6198016c3613b2430a6ad8f412fd71516f3d
P2WPKH_V0
OP_0 5b3513bd161c3650d602f0004ed6ef2309f7f32d
P2WPKH_V0
OP_0 62bee5aad3f9e28d0c22d7edc58ab5d54f611447
P2WPKH_V0
OP_0 357095f286693aae7c77166a32021767e31c5efe
P2PKH
OP_DUP OP_HASH160 a1608e2b3d5c073946caf7e60dedd87313f6aee7 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 dfb2907b122998328b072486b5a800b0cc1c58b2 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 8806676ab1beac224a4c63581ba88fc9ddaace99 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 d824b13f9f92c65214ef9fe0d8b63754f697b41d
P2PKH
OP_DUP OP_HASH160 a9ded1a5501757f04f13282c4733bbfbeaad74a0 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 5a2426696c5c7e2d2e38ce6b6c97dd0f9e5586cf
P2WPKH_V0
OP_0 2cf0e31a422c2d6302b0eee9eac109e732d94bd3
P2WPKH_V0
OP_0 501889f064cd76782dee60b9dab0e522925b6ffe
P2WPKH_V0
OP_0 58d9648741c8e0e2db35f106552a3c52455de5f7
P2PKH
OP_DUP OP_HASH160 7e677c400e49524f13f5bcf896255b9e3e15a4fc OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 9ba4050747c02540cc51568ca8f5d8e682990eec OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 1ad0184118057352a3b9d73100121d8ef1b6178d
P2WPKH_V0
OP_0 a14140d8a6485c6a2eebb17957ef99f310eb12a5
P2PKH
OP_DUP OP_HASH160 cfd3aebfec91f5f3bb4cb6cda764d9ef7e3b1ab3 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 982df9d01ee2f817134a816b0b8487dbf4c00689 OP_EQUAL
P2WPKH_V0
OP_0 5b291782820fa10766d39de3228f41f5ef7a1bcd
P2WPKH_V0
OP_0 8b0c64f7a74c2898a06bc4b4d295a3c390f38a37
P2WPKH_V0
OP_0 6bca0fe6339eec118b1822af922fca323734508f
P2PKH
OP_DUP OP_HASH160 9a2a2c30359a42c7a978699adf3eaee9f3e7f410 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 fa16506ab2c952861bf658a56b82c8618f3282a6
P2WPKH_V0
OP_0 351e70a807f2d60fc122702071b09bee6a6cfb64
P2WPKH_V0
OP_0 76dd5443f74306f6c459f51671db4fe382bef62f
P2WPKH_V0
OP_0 6d20291457f13469595ab323e3ad16f85d6f0109
P2WPKH_V0
OP_0 e8a3b05a25be7f47ef8afdf5f8f6f9084ae0fc4e
P2PKH
OP_DUP OP_HASH160 bbba562b6a33586976a22e8be2d83a9f7b89b816 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 7e79a5b4bd99485b8193207dd22e13d85416286c
P2SH
OP_HASH160 cf70a2377c1d22568b7de119f1bb043266442d92 OP_EQUAL
P2WPKH_V0
OP_0 483a62491273c5be250ac0630b0740fa1ef33f8e
P2WPKH_V0
OP_0 768ba74e593fe483d480f8ad4c8193bcc32ca9d0
P2WPKH_V0
OP_0 67b376f1de18cb32ece5afbe49bf86eefcb630ba
P2WPKH_V0
OP_0 65651583eec3f7508e5a5f0c31cfb7d74c7d8cb1
P2PKH
OP_DUP OP_HASH160 2c62c684b98dd39f69f8b79b26a945d2c93d6350 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 42c8c5768c0edb0b28b8b74159eb95bfec33308e
P2SH
OP_HASH160 dbacae95b2a72721f20b2a9093223be413b414d6 OP_EQUAL
P2WPKH_V0
OP_0 b6d8646c91cea27eb5b6e35372044ff7091e5f1f
P2SH
OP_HASH160 c8dc09ad5d45f3205f499c7516d8bada2c90ea3c OP_EQUAL
P2PKH
OP_DUP OP_HASH160 6795537706fd1b6afdbc10e74fcc8ee06b13530d OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 cf6e6925b646e904aee3456b1d4023cbe24105e3
P2WPKH_V0
OP_0 5f55a83ae8da08b9465b2c00073dcc65ee2e4f14
P2SH
OP_HASH160 8791825609a7593a16fa628375cad13b4292dd34 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 127c662e4cc9bfe3a5e89bfccfa5f3b38c09b1fb OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 36307c6a1d41936a3948e7c21d237e1cb99381c4 OP_EQUAL
P2WPKH_V0
OP_0 722b4f2cd497fccea0fb8c508760bb41d5c7ff71
P2WPKH_V0
OP_0 d731d21516900a1270abd3311e6bb5c6bc13f7bf
P2WPKH_V0
OP_0 6c42c25bb977c864a99ab1657a9bb46c9d51a827
P2PKH
OP_DUP OP_HASH160 494372f485433b01cda7adf1d0800c2ced42a228 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 465e8b5b8318af2eeb1e491f803ca55b450eeb5d
P2SH
OP_HASH160 e60891652dded506c3e4e9cb611816172917e218 OP_EQUAL
P2WPKH_V0
OP_0 9306f8438b1bdd37cfd1b4e6e7877ca1d8b69ee7
P2WPKH_V0
OP_0 65c57d74542fc4017aae6be52f969e13c0dce9c2
P2PKH
OP_DUP OP_HASH160 e79474aa998ebf3839b54852fb5175d7e4ee1a01 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 5b48e7b12ddb964d946e044202e45af1ffe4281f
P2WPKH_V0
OP_0 4795d3610a4605864810e2cd829f13a9bd58a114
P2WPKH_V0
OP_0 95af14ac4da1fc7048dd3d78c99e42dc3d44e2a3
P2WPKH_V0
OP_0 cfcaf25a1b463a721d3368428c55a980cb91e10e
P2WPKH_V0
OP_0 9d95a61cb5c3a80f28dad0feeca58600512a1356
P2PKH
OP_DUP OP_HASH160 e519a5785be7e79ef33f17f49e80486b391b916d OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 e47a7af4034838297bcf6d711cef2a6be7adffd2
P2SH
OP_HASH160 9cd97a39c7e11a8d5ceb6472181c70c02feae4c4 OP_EQUAL
P2WPKH_V0
OP_0 c0680b2972af4db70f598594861881ed0f72ba6c
P2PKH
OP_DUP OP_HASH160 9cca3e14e8225754ede9acb44abb43637c2c9f81 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 ee8e2371dbe5db5feabba85d968bf7fccf9e25c5
P2PKH
OP_DUP OP_HASH160 914ce289941c25a92747fa5e10b431b0fc1d7023 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 20b7317881d5dc3159e12a5232e1fcbffed48484
P2SH
OP_HASH160 7c5366fe6aaffb11f99af9f12dce20318c95d8ca OP_EQUAL
P2WPKH_V0
OP_0 049ebd9bedb4af5a16462dc269fe678ac216657f
P2WPKH_V0
OP_0 001e8fc48304aeabf99c42104ce720eaef6ca2e4
P2WPKH_V0
OP_0 085a5d45202d62dcffc14d1771a6faa958953265
P2WPKH_V0
OP_0 4283552c3bb8b9a9ebb94b2be74bd03ab79b9890
P2WSH_V0
OP_0 2ac52c93fcaa17a724963dc39740fa96aa61a135aefcfdb77637be699e7777b2
P2WPKH_V0
OP_0 147a6b6352ffa624723308b7f9bf2a04a410e1d7
P2SH
OP_HASH160 c76720e44780604b93888c41c0c4c6ad2f237d48 OP_EQUAL
P2WPKH_V0
OP_0 f25c4aa3c6cf5a88ce9cea9e61077ca8aed3b3c5
P2WPKH_V0
OP_0 94237a1fab026277588e3feb18bd9f89730372ee
P2WPKH_V0
OP_0 e752558b23552157f3727e2a872372cfee4821e8
P2WPKH_V0
OP_0 d85c3344219823f66883e67e3359c84def47669f
P2WPKH_V0
OP_0 016e7b41072e8d52802a15c0dfb57a1b423ae889
P2WPKH_V0
OP_0 d422be08b91365e8a66a362ef29881429d30c7fc
P2WPKH_V0
OP_0 9493b52fc2e3e9cc9828f32cb9918101e4dd8141
P2WPKH_V0
OP_0 020727dc4502d152b447d02ae9b476c3f7583d38
P2WPKH_V0
OP_0 c550a19c8d78fbc9413348b982faa031c3ffd0ed
P2SH
OP_HASH160 b30d786a2a0f86cfec6477c3214440c30c7286eb OP_EQUAL
P2WPKH_V0
OP_0 7a7e111a50da6125ffbdcee8941d26f9887a8c3e
P2WPKH_V0
OP_0 0f0d4f07845d14a5ff82027327d65088eff0a521
P2WPKH_V0
OP_0 76d3514eb6d47adcd9fe8518f7f356182bb1b8d4
P2SH
OP_HASH160 a0201a45be3bdd6cdcdd9f0eca5d15cf66d6bb07 OP_EQUAL
P2WPKH_V0
OP_0 667a6ffea2c2ac61037fa200e9df346e58040dc8
P2PKH
OP_DUP OP_HASH160 e560bdc62b1f5de15fe4dc2ed52c8a516c310d2a OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 f3e49f67dd2d89102e1dc02426c3b53ce6fc38e6
P2SH
OP_HASH160 74484bb133f9b58c22e8ea15bdb03285b31b923b OP_EQUAL
P2WPKH_V0
OP_0 4423eefa7c7763afbd4adb774f57533303f2be54
P2SH
OP_HASH160 1e4c9b2ea6d57f038c3bed7282d876dd1dfd655e OP_EQUAL
P2WPKH_V0
OP_0 ff60e7a8c17c0f1f8c1fb79d2d606291bc146634
P2SH
OP_HASH160 ab10d35baaca4a47a0c0f16b34be4d3c619fc8a0 OP_EQUAL
P2WPKH_V0
OP_0 8659b31ba9971eb7cedcc72bd1933b2a33c807dd
P2WPKH_V0
OP_0 367cd1fb029bdc4c044781340ce3d03bc9b1562c
P2WPKH_V0
OP_0 4e01a38e08368b7dd7db369ddc4a5e7e23fb3054
P2WPKH_V0
OP_0 d32bfa1cc94792f9ecd7522d2cd62e9dd472dbd9
P2WPKH_V0
OP_0 a7f253bf9f39523d67fc1a2ed1e1749953642401
P2WPKH_V0
OP_0 295f6c16bfb767ac82711d9425da3da0543c064a
P2WPKH_V0
OP_0 ef586ea81241ca429a290386ed574d1b518f0eb1
P2WPKH_V0
OP_0 2aac8ce62450a66e20ba8a9aad27fd7207db2d4a
P2WPKH_V0
OP_0 e96cd6d2c2d1e5e1ae6b1ce545933d1a3f99e280
P2WPKH_V0
OP_0 365d06f1f67768589e8dd27061b96be7810fa42a
P2PKH
OP_DUP OP_HASH160 0f9d984644efca5d2c5362afd370946c55025eb5 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 5742d12e72b8cc40f75814ddc2c7a656bb44c20c
P2PKH
OP_DUP OP_HASH160 c8f3479e713f1a31c93070538e068f07cdaed48d OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 6cb4a7a6e234564633e7d3281150f81a86251a7b OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 b3297cd202383b5da91d839f4d12198e3d0570a0
P2WPKH_V0
OP_0 1eb6b04541410848f0cbac45fff45607ffdcb6e9
P2WPKH_V0
OP_0 f8335d219e90f27522c94db247cfe0dbef7794c0
P2WPKH_V0
OP_0 ef2acb88cf23fc09bbe8a1f689c890a1ccf6d9bf
P2WPKH_V0
OP_0 59853a9267c04bd3fd304b15f91676b98d9fb44a
P2PKH
OP_DUP OP_HASH160 86a22858af279560621d17c71b34f7b865bac226 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 01813904d17e28e9b798051b02b555885ade70a2
P2WPKH_V0
OP_0 bc77727f32e33d4a54465f3c8b1e8bb66e2cf0ac
P2WPKH_V0
OP_0 37a68f13ab96357ff0da4834ad95e713fa8d9d4c
P2SH
OP_HASH160 3da1dc0d55a0e9a0f9e2d1e638e098f8c17337bd OP_EQUAL
P2WPKH_V0
OP_0 d2332544957c73ce1e36dd953061eac15eb49cb5
P2WPKH_V0
OP_0 cbe62be66ef95613038d56ae538c08f75d6650e6
P2WPKH_V0
OP_0 72a05828d71e29a7daadd11fd63a45030c722816
P2PKH
OP_DUP OP_HASH160 08d1a6cd640339e02d18028090aef46008afc86b OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 631857d41ccf68494fd9e7a6e22bae3fef31258f
P2WPKH_V0
OP_0 560ca460505b9dfad4ea6bebf0ebf65b32162c1f
P2WPKH_V0
OP_0 5729a787e9d1b0d468f046566654b44a69e537d4
P2WPKH_V0
OP_0 87f71095017982040e34c6915b2d8906ef4b8692
P2WPKH_V0
OP_0 b9f205e52d274c09fc81c37f5bd49e795e084ff1
P2WPKH_V0
OP_0 2e9e67445d7560fd4cf0526ffb4b17eecea3e8d0
P2SH
OP_HASH160 477ee6bc27f8d666fc8c655b9e8d8ec327509810 OP_EQUAL
P2WPKH_V0
OP_0 680219d56665d02cdc10bebe7306c7944d225943
P2WPKH_V0
OP_0 5f0dbdcdc3a1022f13dd19647657497450f7c66a
P2WPKH_V0
OP_0 7e639d4d9429cd1a90fb1a641003deebf1df0864
P2SH
OP_HASH160 8719b602b2c06a248d6c870af96b10b46ca78850 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 4413dc185c0568e8be8d0150c59e1b5b85b414cc OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 e76fc64a5664716411eca031d27d37fd590ff435
P2PKH
OP_DUP OP_HASH160 6e403b6b9f5aa6b3fab5d966785f944e686ab603 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 3476382d2fb4ef9a921ec35eab7a086d7cc6aba5 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 8079d906f0f0dc3fa8d42682779b7a088ae0d415
P2WPKH_V0
OP_0 20ff129b3338a0abb578bcf941ef88ef4456121f
P2WPKH_V0
OP_0 a79e53945c423baf208d56a6218bbd23ea7748c0
P2WPKH_V0
OP_0 3fe0b46f2e22d9b022b6189cab996c1919b63ec5
P2SH
OP_HASH160 e04546b50e53f7b67cf393f468bb0d0f92ed8f12 OP_EQUAL
P2WSH_V0
OP_0 c53205da4759c1f94987b4d1fb2808f562d4c7203799e69a07499c6816609cbf
P2WPKH_V0
OP_0 3babfed01caac5b79bfea3117f3dbca9047ee014
P2WPKH_V0
OP_0 6f05e02851c2196d07d7e2560393a9fcb073f211
P2SH
OP_HASH160 0087fbcf593ad422e319100d16de50b4a4e8ee78 OP_EQUAL
P2SH
OP_HASH160 030aa203f9c3e272bce74a7eeb11c68bcd0a8c06 OP_EQUAL
P2WPKH_V0
OP_0 0c43326dcfc1275004413c5095f55306bd4c86c3
P2SH
OP_HASH160 c1dde12b2a6736b6b8a7dbac267f7afe62274285 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 669724fea481670306d0fcfe6e67b28e1d85b27a OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 49f886fdb9212d068fc9cd723e96c7df2790fa30
P2PKH
OP_DUP OP_HASH160 2610e78313bd208b90c63800370bbc8d30826fed OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 e8247eb9f511db1091e48706b35785002b0d954a OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 30ac3bffb3b7a2072723a982f2b37314957410b0
P2WPKH_V0
OP_0 f9187ebf7df31c9edde0e88e3a948a26e7f367a4
P2WPKH_V0
OP_0 ec6c8f63bcd363025508009a34aab7ed1f312ba6
P2WPKH_V0
OP_0 13d5e0c96aab66ed22d02bd20a62026be8a35293
P2WPKH_V0
OP_0 48a3f2ef5699023c5df2d56b42e2404cc7109abd
P2WPKH_V0
OP_0 9f5409d91b811634018f0e0db0acf423011100dd
P2WSH_V0
OP_0 0d670f32e2f6028a0d859eee4e93214c19b20a6c373fb0f731c603547a254988
P2WPKH_V0
OP_0 a65ac7707027ed806b06388d8ef5a46befd2d308
P2WPKH_V0
OP_0 6eaf84434b4cc1c888680e90ec876bc8a615bfa2
P2SH
OP_HASH160 55f5da3b162ff6afbe2853ad4673cf3da624009f OP_EQUAL
P2WPKH_V0
OP_0 d93c99cea652b8b9293deaaa79c9901b918dd1ca