P2WPKH_V0
(witness)
304402201f534cdc21b9526582e69900a266482dd754ecd4e48c02a233ddc80b4f225eab02207bb03e17d4740ab538f59fab7c8794ee5d4b11ea3e66ed177c6bfd14f6b0946601
032193389a825070da7cef9b199e60c0844ce63e177d34111b89a7604e99d0ad43
P2WPKH_V0
(witness)
3044022032db8130cc7f8a10945b375e455bd8d3deb824178725ecd0e8895cdc9daf5752022058db83982b01b2e6879bc84cb0ffb51ae79010a80a3f67bfde4534ddc1d713da01
0373019d4e9cbe28eb0f8b5ab67f5a9a3ea64c202f119053c1d5c8f8b5d4581b18
P2WPKH_V0
(witness)
304402204903a9b2ef2bbb1c6e7310b5724a36e8c0cceb1b289b082e4d67c7a32c467512022033e98b1ed97779bcd89a65626f5c3a55018072dc4ec3b0acf55c4ed1454f33b301
02e76a1a81beb46561d80337fe2db80b5add6ef0a86fbcfef70784576a32fe1cbc
P2SH
OP_HASH160 0abf0df83b9fb896c51168fa3bb059c5ffd9d8a3 OP_EQUAL
P2WPKH_V0
OP_0 8d1f36c37cc96a138bab8620c633b90147d05bfc
P2WPKH_V0
OP_0 df37aa4206525206258c051b2c8f22b566315c18
P2WPKH_V0
OP_0 44e70f4cff7e6d5aa78dbdbfbf21c44bbd4ab4fd
P2WPKH_V0
OP_0 a2de87580b7f561e0c6d4717c38e49da46f7a5ee
P2PKH
OP_DUP OP_HASH160 203d0fd041973fe50f0e2828ebee5f29ac7f634b OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 3d1f858d6533a37d53ca3fd3f68e6482125323f4 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 ca83dc497d0fb7864280734dd1fa096f83b04bd4 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 6157b1d2ca4129342d6a18a6488cd9692b1f1696
P2SH
OP_HASH160 dcfc15fe27992d05f921f85cbd4130806d103367 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 3a615dd4ab918b5884a23aee7d16230d3718098a OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 c3394ac018909732d9e3b4de0941f80469055b7f OP_EQUAL
P2PKH
OP_DUP OP_HASH160 4785000914029c11ba7b57c8445ca6654242ce3a OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 1441704e6728c96f18b5bd72d69e5a30351c116a OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 c132f23bc2ec2b1fd7472a5bdb63e8f8c878d2b8
P2PKH
OP_DUP OP_HASH160 07871ee2896b6f6bff5f3fbd9a7e344d6ded82b3 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 fa1522bf8ba9808b440a798c3028bcf62a20c2c9 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 3b420e8cc8b9d194992ed73392bcd6a18cf8f513
P2PKH
OP_DUP OP_HASH160 e94f317b67f58f7e7ba6c1d6ee5bd70db60f2c96 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 6da2a23838a9f88458009baa114887c5f940ca6f OP_EQUAL
P2WPKH_V0
OP_0 32b078a05ea2bff3ab1bc8437c7b26c4864e469d
P2SH
OP_HASH160 450cd1da93e92e5661c7d976dcf8a6b6a049374c OP_EQUAL
P2PKH
OP_DUP OP_HASH160 550412607753cac1534b93d10c581dd4608cb902 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 9d4e70bbd821ea48b64ee38e6ec864bc10519a1a OP_EQUAL
P2SH
OP_HASH160 45418fc5b7f0fbf0a466ed1738fcaf335435aca6 OP_EQUAL
P2WPKH_V0
OP_0 0aedcee0c0c06da0b439ddecff1e2ebff1bb2e1b
P2WPKH_V0
OP_0 aa30886df0e3916d17e4c6928d33f4373a0543cc
P2PKH
OP_DUP OP_HASH160 c4ba72e0b98ba59f3c8eace04d011c41cb8f8ea3 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 3e6a1d0ac50ca4750390524876a6ea7b249dfcfc
P2SH
OP_HASH160 d587131058ddbef8d81fbd08ed933cdf7876253a OP_EQUAL
P2WPKH_V0
OP_0 d5296a8350e18dadd261b72e7b735f62b45c8355
P2WPKH_V0
OP_0 390da1c4f9dbffcb36d147deacd31bdb08439be5
P2WPKH_V0
OP_0 a4c91294a83619bb3499d1fcc6593900f8ae2bc4
P2SH
OP_HASH160 0c028f6db94c548eb102d37323eb8d58193be4fb OP_EQUAL
P2PKH
OP_DUP OP_HASH160 4d543fe9cdae0a77b759143bf48e872ff0ab1fa4 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 f6f92f5791fa77006205e44f8259f19316ee14d7 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 dab55f22b067671b33102926e41294bc378d5091 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 8ea5170f8205d39c15ecea436b3d2e4c0954b0f9 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 e320517b64c3e8d9886e431d8f401a591e80826f OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 aa11a68ea10548a8f8dbb3da459d6704c8563cd7 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 6c78e89af0c30505f8abaa1e0be3fdcc91f3353a OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 de0dde1d01a5df43428147866e3fc35a9cd27a1e OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 ee5571265972ab9918bd2fd9c956d78eccc06ca8
P2PKH
OP_DUP OP_HASH160 6a4f45e10c7a02b1cbb8649f25d9bdfc6873ac0c OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 a9aaf0c2983e01a5143650f24c5701f1e02c95f8
P2WPKH_V0
OP_0 e2531bf7f216d81d8eba5de4f619af08f76a39b5
P2WPKH_V0
OP_0 cc905041f2d710a437043f29abae3b0c0c6d27a5
P2PKH
OP_DUP OP_HASH160 d32374bb58a8abd6195dc444e4c0b5b0290d9155 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 4211625ad0c7fa7d7a48d71869bf9fcbd3df63aa
P2PKH
OP_DUP OP_HASH160 c7804cba73fe231e1886c3a3b63d229e3540adc4 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 6c0601e8af1fe476a397c52a64dc6aeab3f7a345 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 d3c5ba4b786a5f73b77e922eb3dc605d7ccdfd10 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 f825613c50e0686f1c50dbaeef7474793b352aa5
P2WPKH_V0
OP_0 5b3dad2ff4696c1485af1b79657880968da01812
P2PKH
OP_DUP OP_HASH160 911334e646747897e626012c67fe697c744e84d2 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 10c089640531f293f711220c2e73e7276912d7cf OP_EQUAL
P2PKH
OP_DUP OP_HASH160 de3b0a7d6ebb2cb0807ddd353591bcad963dfe51 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 633ce9189601aa65628ea8f574b8514df37ef92d OP_EQUAL
P2SH
OP_HASH160 f7e5549ff26347eac2263737d60e1d6bbb62b8f2 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 b8b0b0e78f2e51e926b95ebbe0c8f8069bbc62e4 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 115fdd14473b34a35e13c2627ed3e122ec581d6d
P2WPKH_V0
OP_0 a7745c456d46d4c4fcc9479e68c86aec2260616e
P2WPKH_V0
OP_0 77ae4017c2503076a9e049b4165793fd64dc7178
P2PKH
OP_DUP OP_HASH160 61adf6cc094cfa0be78872a72022be083eb1ab99 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 5e424624d1541348a0e491e1520461db7fe45c53 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 620795e8ca60fca140cf6497b7cf7478aeb2236b OP_EQUAL
P2WPKH_V0
OP_0 baff1d7eb177b76cbb3edd6ef897949167ef1a17
P2WPKH_V0
OP_0 6279254e4d01f800e5f221dbb1c3bdef2b352abe
P2WPKH_V0
OP_0 7cdce00320185f2eec19e88912f8775231d057f0
P2PKH
OP_DUP OP_HASH160 e8c9ae1912773951fb186b5e3b72d49e90efefbe OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 1559685d2bec60526bd59f3e726e4016ac27f77d OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 ce71e5b0875275f5f7db4eeecaf3a2183fa052e1
P2SH
OP_HASH160 edf96c89034ae17dd09ffaa5a867d23a97d9a79b OP_EQUAL
P2WPKH_V0
OP_0 549ecbd79bd1aa73badb171560a3ddf2647dbd23
P2PKH
OP_DUP OP_HASH160 a9953c71313abd7e30c3609a33b2f49e301f6738 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 869755f474e2915afff511e6c19aa845c80090ed
P2WPKH_V0
OP_0 5d61e223f6b94fe2fe2416ce83b0e3d7c2e9b05d
P2WPKH_V0
OP_0 23f84c2124ac997c5d281d6a3f9a744014decaa1
P2WPKH_V0
OP_0 e7976ed02a1d0455c681b80afe745deddd7abee6
P2SH
OP_HASH160 7a6d3755225de86eaa62f2eb9339b193279771ab OP_EQUAL
P2SH
OP_HASH160 3bbfb2bb46e84a85bb1ade9f63744c003705192e OP_EQUAL
P2WPKH_V0
OP_0 0172d905062283eecf80e71b52d31220f49ffe43
P2WPKH_V0
OP_0 84949c887caf5831df4761b285955cf78292411a
P2WPKH_V0
OP_0 58590ded4f095f97118a51f667f03080076b4207
P2WPKH_V0
OP_0 e88d72f0aeb2043081b174a68e10d27aadbfe5db
P2WPKH_V0
OP_0 397c37e3794ee9093c3bfe218448ec4d788422ef
P2PKH
OP_DUP OP_HASH160 a9cad2dad68b160cacf82ba08e23652df8617acd OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 004696dec962df4316e0161551aff7ac78285ef6
P2WPKH_V0
OP_0 54b3b03c683bfc4a1b329b83674039d6109101ff
P2SH
OP_HASH160 f5b96ff3bbf61f262e3f53198a0544d53e9b7b29 OP_EQUAL
P2SH
OP_HASH160 c18f2fc22f4ada5963e34f86a1b6b41ec3decc22 OP_EQUAL
P2SH
OP_HASH160 6bcb17cf88119008152fdc67b4983d2dcf062576 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 8a3b67a014408e403bfc385da0efe6e23eed2ea4 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 fdd6191c3fee445dc978d9a540822a228f02bd80 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 1b1184d530291f6ac7d9b312853f22eaf99cff6b OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 0c652385a8cf924aee29b078bdddbfd7f079942d
P2PKH
OP_DUP OP_HASH160 585e161d19f7236846374045307757ee1750c7ae OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 e08d0881f075aaddf68ef4f5f3efd78d062b05b3
P2WPKH_V0
OP_0 5c7d00d3507c232a97f36d5cc03d038f7d71d198
P2WPKH_V0
OP_0 39f91dcb4c0532b103ead44378f22dc5ea9032d0
P2PKH
OP_DUP OP_HASH160 585397bc8118aaeca1d4f4ded64eeee41e8f3a0e OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 3b9a27b33388d026f8625a602ac320c61061b290 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 9acca5346473b1df31ffa3a334b73ef32cf4ea2d
P2PKH
OP_DUP OP_HASH160 9fcb0d8ed38a5ca15a866b7e5003263013e3b1f2 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 ebc4790630704fa0fef3f06edbf9dcea9278a3b0 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 5715864cfe32b53eaa8ff810d9a576d93ce0de75
P2PKH
OP_DUP OP_HASH160 c5e2060645f48b91ebfcb133be8663f6d2af6f01 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 824a5bb7cf96fbb46c9fe9ea48c403fd8e692bab OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 377db7bf6ea7677a3e74ad86fe20d80558f0a0bd
P2SH
OP_HASH160 f3fcef7b916e093c2e65ed8e2e8ae7e28a758607 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 04fda7a3576d2eed44784f3c73fcdc9b79ba5b21 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 3d218f4a2cf7a43f344cd016d654ee2b71c795ca OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 a0d80411748166a1e560abf8813ace87ca59484d
P2WPKH_V0
OP_0 3e42f1e734ea515e62554f4c6a83add74d6774cc
P2WPKH_V0
OP_0 15fafc1c967c5edaa4f62ad05b97c2aaa2aca8bb
P2WPKH_V0
OP_0 90d60aa8153a15b4e0e9491e4ba9b2534356df14
P2PKH
OP_DUP OP_HASH160 096c698658207fac13fa1486d8da4291f5253255 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 940159ca51f7e9fb9a3f2fbe0b1b471df43476a2
P2WPKH_V0
OP_0 d064b714e7262c5e47dc5a34acc9be44c3013c62
P2SH
OP_HASH160 286234d2e7d11e591eb83d7df19a72f297a581e0 OP_EQUAL
P2WPKH_V0
OP_0 35915e569df658026178263872d6f6d8464d52d7
P2WPKH_V0
OP_0 431c7c9aecac4abeda02fe6c048b078ae7679ca9
P2WPKH_V0
OP_0 e90823df216208f17cd757249993054ce089f26c
P2SH
OP_HASH160 b45b294e09b02f927b95a3279c6976d0eb3679ca OP_EQUAL
P2WPKH_V0
OP_0 9bc58d9676dc5087003d6bf993ccef08a0191db9
P2SH
OP_HASH160 4380be3906f68b7f75a731e6babf508491900d5c OP_EQUAL
P2WPKH_V0
OP_0 13492c450cd107524e9a37b1dfa85940c109afb1
P2WPKH_V0
OP_0 57061086d74916c21a8ee1913d8776bfd2829822
P2SH
OP_HASH160 78d91ec8afc68eadb219bb908eeab4feb67d03ac OP_EQUAL
P2WPKH_V0
OP_0 63e75143482848f7900fd8cdd370359964e2b73f
P2WPKH_V0
OP_0 3989a3dcc5112727952a475d53b62b519578b3ea
P2WPKH_V0
OP_0 831184fd986754c1a6de4acbe4b720e8d3030679
P2PKH
OP_DUP OP_HASH160 fe0b31587534d540fe2520babc595ca8715325e2 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 87985b7b7fd13704d0dbf85f98810e18547b7d07 OP_EQUAL
P2WPKH_V0
OP_0 37ca31fc1b8285ab1abccb1d8208256b1743e92f
P2PKH
OP_DUP OP_HASH160 8f7e74288548916adb2e82f60d9ebf6c933816e2 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 e74b75765dcbe0a6c3a479238c298c751e43dca4 OP_EQUAL
P2WPKH_V0
OP_0 80779edf93443755fc60febfbd8cc35192fc0402
P2WPKH_V0
OP_0 9484b68d5d851ce24e9dc2acbcd0fe8c7f1a39f0
P2PKH
OP_DUP OP_HASH160 bdcedcac0da64ff45df887af61fa11309bee7756 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 b4ea17033b127279ac69d6a502c1af05e54cd051
P2WPKH_V0
OP_0 a6d252bb10113213c65b47b512d1e8fd3c1bc0c8
P2PKH
OP_DUP OP_HASH160 02fd2046aa149849516b6ce40b7be6982b852d18 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 12b2c88f2a22b61af1be23ede7f01a8e839cb440 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 b1d6dbf6f5a8a3575650d16eeae32faf98733139 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 ed69c762456fa3821cdcea4066fae8ef2376a4e5
P2PKH
OP_DUP OP_HASH160 806f34a85a8f935352e922dc3d35a2a462cdfbbc OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 fab91311d8089d0e6539b76585ec612940ef4398 OP_EQUAL
P2WPKH_V0
OP_0 e7f55127e75e9c3e9b33d4d1236abb5bf1f5b59d
P2WPKH_V0
OP_0 c8b62b97ba163285f1952b2157c0bd571625efce
P2SH
OP_HASH160 0fe2ca3fdce091abd8bc843eeb01c169b28efd9a OP_EQUAL
P2PKH
OP_DUP OP_HASH160 57ecf3018724ee7db9e0e77a9cdb19b74e33414f OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 392af8ed1871329df77e053c4f031325323904c7
P2PKH
OP_DUP OP_HASH160 8dd10d8dd175644302c9b7805a62726c25e7a3bc OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 d6173bd5bb7295dfb410548d8591fe67216ee659 OP_EQUAL
P2SH
OP_HASH160 12b346b305ec7644473e92dfba5446b73d6c6fd3 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 261b7e5f4fb524970c1fd07373501142f413c07b OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 8775a2d9e485554da16647590bfdd5202a4225dc
P2PKH
OP_DUP OP_HASH160 5393af858bfbf0dc8f7f234fb0f1bf5754fb9dfc OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 e158cfeae15ec8103dc683d382cb178a68440774
P2WPKH_V0
OP_0 21a018813306d553c32758c58e235c94771fb6da
P2WPKH_V0
OP_0 12533c4d5dc1f40bec985f0531255c7f9ce0eeeb
P2SH
OP_HASH160 d58013086f99c91bbcd8ff76c777e76efffd1e3f OP_EQUAL
P2PKH
OP_DUP OP_HASH160 f3fce67d4d246060ac72d332d3159b9ddfd1a877 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 f86dabe6d03ee075826bbaada6138b8951a30011
P2PKH
OP_DUP OP_HASH160 c6e05f191e3e4adcd7ebb5e6564ccabb51cba370 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 93feed2ab016e91c8a1563472325eb368a5a6950
P2WPKH_V0
OP_0 9f7349eecfe2519a9f98a488b14ee38da113b1ff
P2WPKH_V0
OP_0 66a7debe984e2873dcc56f915d1c585a50765c94
P2WPKH_V0
OP_0 d681e1a2ee72168b7c44f96c2bddb95f75f6cd0d
P2WPKH_V0
OP_0 9fbc8e991b02c2619909c0846b00421f426de64a
P2SH
OP_HASH160 12e272801847e176612d8e5e71043dc5035a5abb OP_EQUAL
P2WPKH_V0
OP_0 261b4f5b0a0ecdf3eb35602f9234a390f7300b59
P2WPKH_V0
OP_0 392e71fa002a6ea82f8896354169ad5b5027872c
P2WPKH_V0
OP_0 a8320526735ea17523a1c37844b91a9513523507
P2WPKH_V0
OP_0 e6d2ed1017b3d128452ef02e5c4b248b5eed1675
P2PKH
OP_DUP OP_HASH160 14f2aa56f4597be4afc760e2c05d7990ea6fa960 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 a47b9c91a772cb356f1bde10c686542d442e3a6c OP_EQUAL
P2PKH
OP_DUP OP_HASH160 58fb16369e16171999def5883c35401a93055773 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 3b1f742191418ef2e4ddfc14735145c71c74c6d8 OP_EQUAL
P2WPKH_V0
OP_0 5af0a5070475b95bb4234787423c48a54836f7e6
P2SH
OP_HASH160 ed9aa466ffc8f3bd89ae02374a332e52c552def0 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 98f980b12d0920baf46a684e102b83bf4b5855a2 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 ebaa02ddfb4bd7155167f4502321a845d2e355dd OP_EQUAL
P2SH
OP_HASH160 0913afba58ddd3ef2ff98802d1e1a81c1315a2ed OP_EQUAL
P2SH
OP_HASH160 e6672da8702ce1464f93d5c72d66bb0d24d5581b OP_EQUAL
P2WPKH_V0
OP_0 d02c8fad2cb3ccf228db538eaf074694edd38cb4