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.
Transaction Hash
64da604c83635fe9c4f660b45a0f412b9b521e574bda0bcb3ae2317a53a0c83d
Summary
Height
Confirmations
341,871
Timestamp
2018-06-08 22:56:27
Size (rawtx)
9,878 Bytes
Virtual Size
4,556 Bytes
Weight
18,221
Status
Confirmed
Input
0.00490246 BTC
Output
0.00463082 BTC
Sigops
70
Fees
0.00027164 BTC
Fees Rate(BTC/kVB)
0.00005962 BTC
Other Explorers
Transaction
Input (66)0.00490246 BTC
Output (2)0.00463082 BTC
Input Scripts
P2WPKH_V0
(witness)
3044022013fec1c250a8aaa32a656250112c87720ea01405056ef74f66494af7dd15a4d2022049fa06eae2c29b62f6d145dcb664a5ca4505188e79f92f3402f937768251df8001
02e1561761c3fe087105bb01566fbae3f2f5c1731d13d04fcdebf0b3d0d604f180
P2WPKH_V0
(witness)
304402200dfea71bfa553a370afe32ec81c6d9c2c529dccf4e45034f6a5177f4e3081bdc02205e81cb3cd30c400f53c37310942b1ea296d1c7f14a5d8d5da26bbf6662fd72af01
02a6a327421df477e54f94dda0c1ff59a7f6f9e8f93cdb9034778716e70046c26b
P2WPKH_V0
(witness)
3044022048eb0bf25bee5224b8e18225f8774bf361dde21f8af7a093ffc5c8a25620c23e022042242f5f4fe0efa353d49663be1b2657ac00cc1a281ebe0c6c9a6e52de792f7001
03cc5cf26a9c7e1c560940be6dfe6b01dafd9f7c45b78155491ad07c30e076baa0
P2WPKH_V0
(witness)
3045022100b71e1a225f96667bf53a8058dba5d0ef55c427a5752ebb1e19ca4d6e821c7d350220234ec316b63992feb707d238fc6c52561d7c0f70e0911852fbf52d69bbea538001
02a02703df1582cf8d8719a00ea6acb78a07cdb089373b94313bb5e19782e8c914
P2WPKH_V0
(witness)
3045022100d8c3e86a613c816158b57ec2d7f7969b63c80c4943186775a0d3b0f0a0d57f4202205cf07e6592398fce29d17a2fdd4663a830853134c372a0f39d8252dbd666058001
02d50f2d3fb02885d26beb5bb8c709d2bf9f13232ffd075bd4152a9ba00fd2b7d9
P2WPKH_V0
(witness)
3045022100fc45ed94419712fb241299b898c21e53c1f9c3f3c628a92741f31ffdbc31d49e02205ae3e6ee15f4aa3be30f423d8041863bce74f9532f6f5a3649af7f6881cf0a2d01
02e3de4c7244c8e24b44295435400c78b04104045a1edd4fb15ccc00bd460d9dc8
P2WPKH_V0
(witness)
3045022100d5b1afd16929675d9249edbd78d03907ab3ad7b1cc4eee63c068043c8d859b42022005d711d6f9e92aced49d37e7c04ee303d0f5936a9a9183168cd46c06b6500f1801
025cc67ae3316171acfa6996b6bf9f45b336cb22c611931d2b17681ee9e60b7f02
P2WPKH_V0
(witness)
3045022100b81db6285840aa8f2ef037085d73c7d3b251491dd143f9c31a95316f735436b502201538f1a7b0c4dfbd8dae458a3243e9954926b363bfa83274a24e5aee6d2e5db901
039323c4b46a9c3cd18bcb86cc3d20f728770aceb954bc543a489f05e2670698e7
P2WPKH_V0
(witness)
3044022042c36f1e5336948c96791b0bf83f9c15ca90fbaa6377198288de2b98fbc6c1e0022064f857b8db7a4d12c826232bef34cb062db524da43d938479136be4721647efa01
029abf1d30bb40e162d3c958f42d157e39f49f9bf04572f66019d5b9cd8b8daeba
P2WPKH_V0
(witness)
304402204a538c19a783c5ff42c2a074957035b98d15e86df9b5eb80941d2854cc9d8eb1022062519ef11a3bda15517bb8e6e599c20e6381fd4f627657f1db1d86a543675a8401
03f523b2437951c1c4b675a1e1346b84414138752c98caa7d277cec4f9fd19a8cb
P2WPKH_V0
(witness)
3045022100fee964ed6afa47b191f3faabfeca15ff15ff2099a9990b3d53c79a78d5ca9dba02207783efc393d879488bb709c8bbf1788273d1101d787e8d0545cbbafb6c5009f001
02fa40f77f441bcd568664a0a8bb14622f6b775db519609d9afb19628ba0994f54
P2WPKH_V0
(witness)
3044022078194b1ee29926d3f06b3720d565ce61cfc367a134b2b9f438386a0ef62f877502201940c11d68f11b277a119d43fac90fc88bd61b323022d11629426dbf3c6a274901
032a4ca8999eb912829866c90553a0bb6f86f6326e044ca02073907a0d9b393567
P2WPKH_V0
(witness)
304402207097a57f07e86d172d1e9987608f603d66400e35199dbae7dfd199059ca44da6022007bf1b66cbb5665a55d487fb46660886a6dfc8eb61d373afe6f6baf9b662c97c01
0382fc586051a3bbf36e5ee17ad5955065f14c5d77e7e509b6c05f7f30d10b80d6
P2WPKH_V0
(witness)
3044022065f83f4bc78e1d0459bcf8424c01dcaae3e606f55915af692b7f08d58b58d4b5022060f419c4dd939d136f663b72629332569da953c83dcb41d9fe7f6b0bc552ecb101
02ab5fbd426d5f7aa1c47d135cd9ed6f7d46fded40f6ad1cc590d79b40ad5aacf6
P2WPKH_V0
(witness)
3045022100f9c4a46d9d5e00780008bf7262b11b30b0c8088adc0c5ad4579b264b894547fb02206e31fc48ae8517e57b5fbaca93b492aac0043a9776fae5e11f6fe99b3e21e25001
03790f96d1f10751132c496ec6ff2a00e3bdb7222017e80eaed5b9694b3acdd7a1
P2WPKH_V0
(witness)
30440220169c104701afb50b07c937c5efe1083054a4cac0248fe969ee3f1903572371890220416264ee38dfdd9004edde914a4a80b1fe1f73796d7e70c1f028215f843116a601
03e7ad0d6e6c27be7c89132e65750c8f44b2d3302bb31cfe63f984e8f70e225368
P2WPKH_V0
(witness)
3044022069a9f37bd5b408638c1a63c0b19ec110baeaed5310e28059f1512af3110c4e6b022042a5dd437368a9b52016e51ccc14c08e39a37d5a3c43768d7eebf48943b93d6301
030c1e2e4581735506cc946d36d721605f6919d0c25b3d025cb24be01fe3d38eac
P2WPKH_V0
(witness)
3045022100919ce109fa664fc831953270331a0c5bd513d660a1afaa4bc2a89ad81db5a1850220449f0ba0706d353057d2d95fbc01ec5d3dc8ba3c312ae88f547050413789c1b201
02c9b97748ee5475e031d26f17e38e4f7d442fecc8d3d71aeee2b843552ec77200
P2WPKH_V0
(witness)
3045022100eb7861d58920e0cd11497b1f2ff9401a43dd45a87888037cc7805398898dc8e002206533adc0df9d70a26d94ec3a6350baec4db5c81efed4d5602391b07499ab6e0701
0221266e2cf1a492d39952c38f56148a9e7b218cc2071b3d1958309c0d2677796a
P2WPKH_V0
(witness)
30450221009fe79739c3332ead87fb894404c99ed948a7c6758427f6414f59850d7880d10b02203df518e5d30d11be29ca7b45afacce26deefffa03bac03b35c266f83d73dfe0001
020f9cef5eae3cc534d82f7b02a8d95182c8e29e453a80fa3f0c320b80fc858871
P2WPKH_V0
(witness)
304402200cc8d8a974bee41a216e042d4aa929ef8da26f1a143e3ea1b21a124afa63050b022034b851458d350b9065be51eb5b60f0d566f35995bd260489119c92a700c7052001
03047a7684457e693695470a3e0473bb9f37515c100c34f56bfc905a2072c38adb
P2WPKH_V0
(witness)
304402202b3cdcfa5729d84c368281320333b85efb6d87a47ac24b5057935bfb75472bb40220025bbccbfd7e0b333a62aa78c9f8e6cacdaf5c747fc3fb0590de61190eee0b1401
02090d87f06bf009f4292e0f88c907cdf5b3d0322ad9ec189b95c67b0425c23fc7
P2WPKH_V0
(witness)
3044022045527e1832ebd6da2e43f51416cddca58f6e85730c124e2f22d5aea6dfd5817902207e9533661c9f8384a8227d98423ac4b6fa15ff5fd1c945e7f8b79f84d2d503ef01
035bc4563721597f46b1c5de91a64b5c81c7c5ab07e053f20c92134f69b4c61be3
P2WPKH_V0
(witness)
30440220542130d7eb56cef5c27f0d57730f9e1dbd6188d9ba231eb08446c43b3ac5aa7702201c559e0840d6fa1462aafdda29bbd752faab7e2283cb3d3cc9c72d297061ef2001
0249074ec2626837f98ab807477ec4e881ca75393a603844da39b79c8e0226c2ea
P2WPKH_V0
(witness)
3044022031a0fb195c4eea48285efb5c4c0a879eaf7b18129f809f0b9f54b70d53edc1a302204f3b72b5969c4b53bef71b4a5d0de25a32de232f541f8184238cf49b9a17d3ab01
0277d15f0cefad58283bb9252a8eb989b081eedcd036833e03f2126b89e803df37
P2WPKH_V0
(witness)
3045022100ee93e56cfe2c0e41dc506333b42af7090957c63e638b0d089b20e23064fff8d2022078707918a4d57ecfd4cc13df9299d590c77b74a492b11af5e345d0f86b57ef0101
03b9ae5a5c8cfb8458093e9efcc992ebf1c93d305875fa94e3bf8cb12f32303b82
P2WPKH_V0
(witness)
30440220107babeecda466768fc035bf5fe25e7aaeb861e25b29579d952bb9be0a3452aa022026010bd3b9a1fe4d65ea78291357754e54b5dec0e144bebb70b607c87eb07b6701
0382b47c98f771ad7d06e96df80c6c66e78a25dc45e4ef23800f0dc467e6b7bccd
P2WPKH_V0
(witness)
3044022040901f14c8ff2b6defe364d73fec216c52b09afd874bfc1eef5e74c6b62b85d3022053f50024ab77eb5521feb89b04959b4144996a076a6d2a69a5b04608f109c7e101
0241d95af6e52a4309bb5ffbb59eaaacfd2b5d6d8f7aad9f9444a0bf34f04776ea
P2WPKH_V0
(witness)
30440220490513b268a5d2ac45937bc3ba3b0f605be8d5ff7798f172289458b1a43838e202202a2d3b85c8da5fbd6c24aa1cd3e284a07b60d33c6c71d7fa78775a258d92416101
028195397336d091c0984750406a03625891e86ef2ea4856f8c8037d784772fb49
P2WPKH_V0
(witness)
3045022100ff4de1df072b4d280b44f1b8918dfa1aa7eac51a86b354e2b67268daa8c8ec790220778bf1d79728bab66573577f2569206c61868a90145893dfab0ed284e9b4f5ec01
02be2698a40af0a6a481f0afc79710999543e5e2ff19cd9427dd7c6be642db3c6e
P2WPKH_V0
(witness)
30450221008c815c8804bef38f25f725ab3516a1166bab6e1895bdd897fda36ab373d74f100220614662d2f0f16f3dca574af69160e34c56ef15465424abdf7a10e9a18e78ad5501
03bf753b80e7f66790f0b90580522794ebfa3acde29092500cd120286fe1119a21
P2WPKH_V0
(witness)
3045022100a4e8e4ba981716f687d0c870290d7b6079e94dc221f310fbd6f694960fdb3d1e0220074bbc755c7412361f1bc421f61fa6f8fae541f773cbb94b23183c8e28df7bd101
023c801bb5773ebcccfb13e798d91d85ef40bd03b510905c8d699eafba4adb2bf4
P2WPKH_V0
(witness)
3045022100fd7f331b9e97b7192dee96beaaae4b6a6bb62f434de0cf7a13cf5920ab54a09802205c490b077e08dc4750745543c5fd8f5702fdc731ace37a329716858b7121b83c01
03517abeeded361fbbff19f6e1fd60570f7c0e8c3f7600c50217c8acc5078c66c0
P2WPKH_V0
(witness)
3044022054f846f885806a6959dc944f7411b5b22e148f96e86fa604a9b3f39ff4426fc2022038cc04ffd94174bf427c86a19a464b3931b5f5cdfafb72a8dc21b37721c33e3a01
02f3912eb18ce9436a409eeeff96cf9d9a26ff71545d2cc4f1e80bd244f684b68d
P2WPKH_V0
(witness)
304402200cb609dce0ad09a21d1800356971011cd1edb861de41310a33d558c13a5ce6640220735eb58d6504c1133aa7d2e19ba7907b168a429e4cf413c25b019b6650e158f901
020b1fc295763d22021057eefff5db9c0b1f17c435cb5bd0c010db75458df24dd6
P2WPKH_V0
(witness)
3044022015fb09ec3afba7b77e6a3f453400faa201ffa4a5a30e7e980ea4249b7bbfc2e5022007daffe13e4b4f9b02889a3cdeaabad3bf79ea53996952bbceac14f4aa224b2c01
022a02d6952cc62a4a4b86d9793d71bf0151083cca0ddedc7ebf6d1e672796a451
P2WPKH_V0
(witness)
3044022079df5d71f313dc7c09af5f20bf68bbc848ffba07b0720c55d8f2eacfae5b4ece02203db06fcf9e2791a79c81112263bdc78d0e46a9ec691b9efa8e82e2955e30424501
021f81876f2022c0ac63654a061ce33052f5834558af1a077f4ff965904e8b7502
P2WPKH_V0
(witness)
3045022100fdebaca09868c6cfb23b17a392198249931f82f53722e37a94249dfb5596f644022074cc2361806342ef6a5e61a68e85693756147ef3369b8d017d4aabf70d6014b201
020fcdd4193a34489991f7da52a4194e96d2e59a549dd754a841380c5c17f3285e
P2WPKH_V0
(witness)
30450221008fc4e5c0eb573459d5d5b80371e13556b83a1c9914ffe8a5584916c64c62195302206294f5b953dc92f1723ac87f90d7bba5f5ffc5d6c60d02065dbb995991debf9b01
020712d6fe196387381c7f7ca722c0e00ba9e3c7ac4631a88617300c0311808e78
P2WPKH_V0
(witness)
3045022100931e231ad2e92d3a13579a312bd3682baae7c35f6e8490a38ea7e9a7edebf9e202204e3f6c479ef385c3eb1c3f70b045dc3e4bf8dd48e72d6ef33c58d90d46a6f23801
0294cc77556c02d988961249e17e6a1cc13bf50d7aa4e5c24f7f35c341d03b9a35
P2WPKH_V0
(witness)
3045022100b89f9bfe7fb4380b5da08d6312a8724df8817cc6ea9c0a9cbac4552ee16d72db022068c68374e10012962d5dc755756be7364e44405f5495c5f5d35df41632e8686101
0248b71655b6e4e3099a3ab75abddcb31bf42f6ddec0c009e42a22392773a0bfba
P2WPKH_V0
(witness)
304502210083c0e7d3040124dd7e119849893994340ae83765bae3f2feadb741cce6e5c18d02202dc4029f113b57a96d59d591314468f1be31275ffe60faf3cf6b4a802bfec3c801
02f1603d454d6db56d3637c6e5e3a3eae406214463b81d49d983f7cee253b4b6da
P2WPKH_V0
(witness)
3045022100f84818a0a0e873a1800fa59dc0a78db7641249f15e6153d040479036e7d149e302200478f3371d59eec7786f0619ee721fb16bb86835a1b1931c3881a6d1b194f51301
03e89472fac1b5e56c931621f48372c32ede4ce37ac96c0fa3c4da32cae11b9692
P2WPKH_V0
(witness)
3045022100f23e4f74c9d831794c8779c67bc1a5bb748eea3f14b23713bf6dd175af689b7402204d11cd91d1590b1205ec964382893452027016f4651e8050f168c2656e7968a201
02ecc10b31c0386d6789736474d73f9beb0b5a731de2fe4f2c97a8b1aaef911404
P2WPKH_V0
(witness)
304502210088fd9867f7a7926a4cfa157486cd5aae0ca763654e87edd907183f48bb8f4fac02205222a725166020676f2241280740fdd437f6c4aa4feae7e23239fadcadf20aef01
02d8f3b9edee83a6430190ed5311e90a0fe2b92148f911a56cef47323394070c37
P2WPKH_V0
(witness)
304402206e3622c1c88c77de7784c487b2d95176e303267d298c83ef6ccd0cb2f1e1306c022028a2c019216ccb26acf1578da6873c33c0cb460033ea06b5a72e3f51fdc8f95b01
023936751ea2ece4ec0ff93e36b1457860e6c80599f70566e7a5ffd48aadf9b2dc
P2WPKH_V0
(witness)
304502210086815b47cc0557c6cb241eba2726f349ee206908932ac7cedd8f0e300e66bbf4022065e30dca8714dfefc68efd8042455dbcf5464f739bd0d471628a91e57b958c0e01
02ee953743675e803c0793efb54b499d5b088588ae79f2982862da647fd0754ee1
P2WPKH_V0
(witness)
3045022100970c6b094ae2fc5c2f3b287b04c2daf2a0d8ab9b921a4cefd9912f753a7d965c0220096b03e5a24b9f3a8a99b65c8575e4645b4a8c4ef2e07d6d12437aa6e56dfcac01
0209baa13b74b477321b7a3f5ed4b39a5db3c25c5fe47329860accdb0465893c33
P2WPKH_V0
(witness)
3045022100b5b106a05720d7e888dade8ebd149543ce22c644bfe94ad95dd730c8d17ea736022064456bf5284274d303a96352c598bc2635195d4189d2466737516f7a43efec4301
022e960e923f0f7b90109bfb6647551669bb0106d824990fd004b14c323042a253
P2WPKH_V0
(witness)
3045022100aede8e5b06f1a966347dc6c10040e452e9d154e37c241d8a13150c50c9dd23b5022041f5ea4b349ebc0b4b70779ab38e68ccb0f8bffb1a472ddca109764048fd2ca501
021bc4c25c4bac4bc0edbef04512d5e8082228ee9755641ad6a9ab89f9a3fb9c03
P2WPKH_V0
(witness)
3045022100f1107c9d3dd5010a71795279fc261f050b4df862a3e128ff26a9c7bc5ab0b4c902201dd44cd0787bab6d7e9e7b7b15c95cb08d7f394d7a1e5865123db4e14785832d01
0273537d9dd77f0ebf0498dd121d2c9f735f90f54b7d6d02c42521140ba66dca70
P2WPKH_V0
(witness)
304402202b6d90bbc7ae6e5f738e188fbdf8cb1b16f06defb1e699377e2dbef5954b629302201d9f4a6dcf65367588fab11561f8105d4bb65e00b1fd85794bd44af7329baa9401
02171cd2d4ac13296d68d8f40400832c4f920792e6c2964df1dad63faa0c6ec9f9
P2WPKH_V0
(witness)
3045022100e53e4cff1b13f4c7d40c18ab830b4e316804de4d7c70332c213fb6d282952bfc022035f2356a3f65482df2e0ce454ac2d708e2ea473a81f6963ee87c426df849074401
031e3528af16b60f7f614b86efdac3489706fff875abf761923088c9fcd012688a
P2WPKH_V0
(witness)
3044022067f2d076835493679632e2f26ca78f9dbe898acf2c2d62d1d7f34374f0848cc702205fb78a1933cd26ee925467feb2716dd1f02bc1acbb4b1c0d804565f82689633b01
0341a6b99c2dce372c41485d1b3a68041568479a1f85f38c89f62d1faaac03d202
P2WPKH_V0
(witness)
304402205e4f41e8206bb42fb36a75014af317897f3c0772f954b8e57124d40723152a3002201179638c000e52d67fccfefbd147fb249d044ccb5be0af60d5796584e36d19c601
02a3502f20cdbae21196b2b0fea75e11359c9ad0755df0b6064dea5f61061fc986
P2WPKH_V0
(witness)
3045022100c371aeb25eaf93112b32530249543facf1fcbaa53289da39fd1c5d3d5d241bd40220070d0e4786c0afe80998bdfcf096eec8eacbc78c524719cf031f0da7b4babfc801
039efa7b3d8ce17f1e8d405b18c83fda1b443d9bcd72f4469995f9fe6d45983666
P2WPKH_V0
(witness)
3045022100db27376ade0eee858e1392f7a974ae4e392a8082d6a9ed22435dad658dec3a3e02200806cedcd1be6e9aaa4bddfa896221ef1ad79b0d4152e51517ecc9a9d4e9271301
0238b7868cca7a4e7e031ca6ac2b709a7242c9673259f2583dd5069c56a264b802
P2WPKH_V0
(witness)
3045022100ad40843252ea89acb39a7e77ebf5fff8b2673a9ef758d95875307f57234b846b0220200329101ab80ee8d6c000dd5fc700b3b331cf856edc15ad2e8b87ed699872b901
02c426f9e8f3bf64c0b0452795d067c79489aadf53fbac86ef1e80c1aa080f7d9a
P2WPKH_V0
(witness)
30430220191e63a3ae5c8c025d3a31c28b0a18c39044a75e93e7f542d170b7969b098df0021f596b503b83e482a09834c2a3334eb9f52d53d6f70bace6fb9fadb9db89688a01
023197d40ab6bc2ce07bdb4d3294324795f71c877bf32e46db08f8b413c8365659
P2WPKH_V0
(witness)
3044022037f9531813a14fa0ddceee86568c268f4ed477954ac9ecf11041e1c9fcd45a9702201af652d409bc8676d4a325d125b4aafe461b73a434c51a8db9264db695ceb26001
023b5cadb9d8a271f39c9af43017ed1fa7430481aa1261f963a16e12679e14f72d
P2WPKH_V0
(witness)
3045022100e47d93edcde76cd4c9fb6d0ea52241d6596ad900a2dd80e72446e6f8c63e4d4f0220475d9e02e5a2ba7c44c399b3bde006eb04f759f0ce2ae9725118e8cc6f29d26901
035bc690e0dc933eba79880a8dbd538f03bc1ddec7800dabb624834c54cef25509
P2WPKH_V0
(witness)
3045022100a1e04963736a2cb012e0501c11f5b93f8a34ef3cd03394c7e1f5990b407b63c8022027218c707f1d46b3dc545284f17ca7bfc3df2a3c909ec03e9dd131fd88273cff01
038b6f65e58db0faf029ce18558fd2dd80f7be93e0b57e6bfb718cc87a36294c30
P2WPKH_V0
(witness)
30440220348740f6dbdc69d739e11f5adca4c7f11a4b9d142fe6678a4b5fc5451e6f0f25022042802ff227c743f2e94a096695542d615bb768b5823b565853d0d32b829fc4d901
02e04ade8c25ea3c0fb50df95b8a34f1f947106e05fd2f0acb7c199832d9071b3a
P2WPKH_V0
(witness)
304402200327b30daedff043d5623166dcd92ff6bae76c85ee149b83b6ed12983b9203af02203e73a3782824a52ed8ef09b6c51d5c1ff966514ff335cb34dfcf6a96888c6b1501
025bc8645c1fec99c67c9f6688f6968c2ad4189e989878db87268d862f187441c5
P2WPKH_V0
(witness)
3044022008c7459e775362dec55bb42fcdb935b4a4d5ca16a174a275becdb7fbe3634348022058c1f18acceb6e30d1769b8a1a1b3f5a25343c9fb69a4a606ff24d81e391484301
022ef26f65df2f582e900a8a2034e114094303c18d2b7a8c4367d9da746b0c044c
P2WPKH_V0
(witness)
304402205dd8f16e7d9a7baa5cf17971b9476c0c0c089464a9acc4ce8e899be5dfa03c21022038fac9ee56266ce95ca4918c8774f7bfa95c339974049e48d6f6ffa9afeb04a901
0247321e0505b901cf7ac508292c8a367dfe89d452e3edb40312652f62c2d1a665
Output Scripts
P2PKH
OP_DUP OP_HASH160 e1cf1f45d0c7cd5edc00d4249b77d2fb6a411891 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 0f7b3b3a182296266c37d99c1821ff71f79341bc