交易 998341f6c1710b78a772af00fb15f963734b37bdb19c1022cd08e4fcbffe00fd

基本信息

  • 写入区块
    844607 (Main Chain)
  • 确认数 41823 次确认
  • 时间戳 2024-05-22 23:43:50
  • 交易大小 14231 Bytes
  • 其他区块浏览器 BLOCKCHAIR
  • 输入 1.18932467 BTC
  • 输出 1.18835914 BTC
  • 交易费 0.00096553 BTC
  • 交易费率 0.00006947 BTC / KB
  • 推荐钱包 CoinEx Wallet
输入(57 笔) 1.18932467 BTC
输出(177 笔) 1.18835914 BTC
输出(177 笔) 1.18835914 BTC
输入脚本
输出脚本

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

scripthash

160014f3e22758f8210e86c9304ead3b7f427e201a864b

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

witness_v0_keyhash

输出脚本

witness_v0_keyhash

OP_0 ed24342cba0cc2b2774ffc55a3b006ed3a051952

witness_v0_keyhash

OP_0 57bfaf0cc440ef557c52ef0a927efdaf1cc37d7d

witness_v0_keyhash

OP_0 019ce42f5d49022185d6330b570678f36e79da2b

scripthash

OP_HASH160 88742bc91d3c66b724e5a4fe4cf019d5512a7e87 OP_EQUAL

witness_v0_keyhash

OP_0 8a433045f997d045cf7742f37bfae59052015726

scripthash

OP_HASH160 8358029604f1bc60e9002135db102e5016301ec2 OP_EQUAL

witness_v0_keyhash

OP_0 1a9386bc84a7e876c065368c3a43cdc923e23538

scripthash

OP_HASH160 18349a80a53fb08af32e44504bd01b234c60f620 OP_EQUAL

scripthash

OP_HASH160 cd2e547d35cdb0b6530f2b151b6046957ff8a0c2 OP_EQUAL

scripthash

OP_HASH160 f7fb83fa08985b68dc0ce32a6db11c3cd483d869 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 5d3397837dd9da09bdff80cd741dff5827c2e8ee OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 e609192e7db4cf4162895b37ab62ef7b43548dbe

pubkeyhash

OP_DUP OP_HASH160 5bb0217e435ed4f555d9de7b8bceb6742c2c5b4f OP_EQUALVERIFY OP_CHECKSIG

scripthash

OP_HASH160 0178a8e12f3ecf6ae30a9cecde1f9d2c3b93832d OP_EQUAL

witness_v0_keyhash

OP_0 052a7a7a6f50d374015de479e9d9293cae3c6e82

pubkeyhash

OP_DUP OP_HASH160 fb16172f866ccb2f822f05dadc3de7c4d94edf91 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 fc163a2283974479ebc764519500e056f0b907fb

pubkeyhash

OP_DUP OP_HASH160 3c51397fea314d02b4dabfaca451988343701b6a OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 782ee4e9b571b37943428266a315a070ee511aac OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 cb0782733a09dd726ec55d4b2a8e015c59a085be

witness_v0_keyhash

OP_0 badf645e565e82287c43e75615bbfb54369dfb81

scripthash

OP_HASH160 ca2d729e72ec6d8253deaacce6ae777fce1f598a OP_EQUAL

witness_v0_keyhash

OP_0 dedda532e4c2dfc02ed7afb1147855b86f74e6c7

witness_v0_scripthash

OP_0 c0b9f0daa55bbd7da93e55abe67f55a8a3c51259826c75e3e0e40bee68484fb3

pubkeyhash

OP_DUP OP_HASH160 db64c16d61b537a347791e307b9a454dc0a782d3 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 2d32979eaf47d1728e75b3cc043667c5108596b4

witness_v0_keyhash

OP_0 a4b821b09c1bc7020535aa2b55f76859facf5914

witness_v0_keyhash

OP_0 2e4cd194698cc67f013b8b1c96579f90836b5214

pubkeyhash

OP_DUP OP_HASH160 ff0ad8cce313a53b5faf49e7118261468f3c0462 OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 e22048f945d342518bee7e6134907da1c68266a3 OP_EQUALVERIFY OP_CHECKSIG

scripthash

OP_HASH160 b36c37975c16bfdbd7522367d70d1fdbc8f44f7a OP_EQUAL

scripthash

OP_HASH160 f125cb50d44d07e0acc53cbe0c8a34a4555f34de OP_EQUAL

witness_v0_keyhash

OP_0 ea3d032a92bc10c31cdf520c2a55debdc90dd2ea

pubkeyhash

OP_DUP OP_HASH160 77adcff94fd14c2ea13766ab573644b586614453 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_scripthash

OP_0 1df258ed0a8cc39bdf206b042adadddc0fcb32d82c7b84c31c5a1289255f35f6

pubkeyhash

OP_DUP OP_HASH160 76d7ffe61ef79264c9c77d0ee7179a2af979dacd OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 a9d459ae6cc4605fcca44a819cda90f3e00b1b53

witness_v0_keyhash

OP_0 0068804300285654e5a3833e1c61e381ac816d4c

pubkeyhash

OP_DUP OP_HASH160 30e4c3e50f9290717464555e2ca18126d01c2d15 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 3e3786b65b633313192ef5101aaddd5441202786

pubkeyhash

OP_DUP OP_HASH160 b68ed84b058806454d5f2a77d05d18a8890dda0e OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 c1f3f5c1a910b2f25c96670221a60aabcbb9d2eb

witness_v0_keyhash

OP_0 7e33f21947e695778a3d38c7ac71047a8ee39d78

witness_v0_keyhash

OP_0 0cf6e3828dfb0dd90954c50e131fb502e4e8ca39

witness_v0_keyhash

OP_0 3f4a597036fc5b504b4376fa13bb7d9891fbff9d

witness_v0_keyhash

OP_0 deb20ba8dcef73269ae8418c85f71957bfd5b5bb

witness_v0_keyhash

OP_0 494b8f70c05a00a3fe57a0099967567f7d87fe62

scripthash

OP_HASH160 077c5601a2d120f0f52e41e47904fb7d7da15239 OP_EQUAL

scripthash

OP_HASH160 58c7e95f5230171f649397fa08aa8507bf68cefd OP_EQUAL

witness_v0_keyhash

OP_0 33ad9dd8c07ffb164d0a853e74ac274f9751a109

scripthash

OP_HASH160 4756442af50d9e2b8ed4c8f4b92815b789135eed OP_EQUAL

scripthash

OP_HASH160 d2ba301562ee8fd71989048c5a95b0a94769949e OP_EQUAL

scripthash

OP_HASH160 a0d38f27875f76c2e91b309147fed2e7f5f2ccf6 OP_EQUAL

scripthash

OP_HASH160 1466593750f1f9183855058c3ac6699c227aa570 OP_EQUAL

witness_v0_keyhash

OP_0 dab85d5ef3ab64beebe99b181ee83ebe8d8ce20c

witness_v0_keyhash

OP_0 5df5771603597ff4c3ad599608554d510a6b9f1e

witness_v0_keyhash

OP_0 bc92d497e7472979abc0f9c0660466933b53b0f6

witness_v0_scripthash

OP_0 506b4d94907f146316f6ef4a6c86f23889c441ebae413b86ea477b549e992b6b

pubkeyhash

OP_DUP OP_HASH160 6af7f0b7c3a8bdf0c1bb2d0cc4e940faaaa3154c OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 00f6f1a08db2b24757830eee1ce4c1ea8a19828c

witness_v0_keyhash

OP_0 4779410af83f16b2f53d103d6a9363cd08c02106

witness_v0_keyhash

OP_0 1287d9eab134ab33a7f05ce11f6062106a26b8c1

witness_v0_keyhash

OP_0 21f3b4e83779dacd8c2bd69aa4ffefdfdc8ba238

witness_v0_keyhash

OP_0 e10c471d6bbb36640698f7ea31a7770796a252f1

scripthash

OP_HASH160 9fd9deec47fe0b83f31ec9d92f626b2ae6dd0476 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 01c2fd3b6ce8bbfc28aae40877896bcd84e6639c OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 ebfbfa72739cddd510a34af29c5bf1b40b1c2b6a

witness_v0_keyhash

OP_0 a7f8c1163045ec534c9e0f913555dc917f28c628

pubkeyhash

OP_DUP OP_HASH160 31bdebe9524135082f18157999a6018e3af903ad OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 fc2ac37d424aa7b71408c0754aa344c90672a95c

scripthash

OP_HASH160 aa7289c1c5e642f237e79b0a3fa60f515c551972 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 1768ae6ef724749bb30147b88ff9315eede0044f OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 24ac27c4f969901c8d95eef4f90308a06d4a5c4b

witness_v0_keyhash

OP_0 7650d78164fa9b1568cb227810ded94fef6bbc2f

scripthash

OP_HASH160 7dc9eaee7e74950799dfa2a10ece68fe4a803c38 OP_EQUAL

witness_v0_keyhash

OP_0 96dd8a0b201443bee78ff9523309acdb777c3064

witness_v0_keyhash

OP_0 44fb4ed4523a40d3de1c810db83289f09d2f373f

witness_v0_keyhash

OP_0 43bb2f9479408c02db91fbc02666447ddaa164bc

witness_v0_keyhash

OP_0 e02d10eb4742b65d48004566469b4686a56f7d6a

witness_v0_keyhash

OP_0 ba41fb6a43778dd04aaa222b7d6ecdc1c41e300c

scripthash

OP_HASH160 3ab3b5e1af46496f9c8fbe69f5066e0dd47ce0f8 OP_EQUAL

witness_v0_keyhash

OP_0 46f067876163633962f2c4da803cebd6b87234cd

pubkeyhash

OP_DUP OP_HASH160 776c355004828ecb8bb239f47971b0e28d915371 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 b65065f54912f7012e3d516ca92b407b267b8ad2

pubkeyhash

OP_DUP OP_HASH160 9dd4cab11ceaff222986561a222609c697a33dd1 OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 29b65178e48db689a2a573d4f073643b927f170f OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 aff671bea74e727b111c585e31e06670c3b829e3

witness_v0_scripthash

OP_0 766ced3e50dc67f768db527df6268e6750a037fe33a81112b48dc25b73945fca

witness_v0_keyhash

OP_0 d79fa7f406eabfaf037ec15baaf8ae89edf1725b

witness_v0_keyhash

OP_0 995963ebfd0a207caa703b6e0f0498c650d28d5f

pubkeyhash

OP_DUP OP_HASH160 86cd069290b3ce5808d60030b0905f0294c655be OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 ec2a26959985f11080bf063ea2a2c8a7191e1bd3 OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 d8ab3f0770206d3c54b1029d2ed87c922f855784 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 77c5bbcbcbab9c91e156c25276b7f8f3087ee195

scripthash

OP_HASH160 75bd9c85e60a2b8d1aff581323fb96df4d813cd3 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 70008f4389810a108448840542a967a4dbeccee7 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 3c72ee4ac1d59093203b6f6c02f5a021337e0f9c

scripthash

OP_HASH160 21b944f234af4fadd784f8c1b9536ed7f0129407 OP_EQUAL

witness_v0_scripthash

OP_0 add38d62ebe4309bea2fb502c4181f359dc588ecc099c25a4c684bff74810f88

witness_v0_keyhash

OP_0 099b49fa635ae837849537eb4ea8b9c80236b9b5

witness_v0_keyhash

OP_0 fbaa1ad60b5549405de221081b4eeff49462c950

witness_v0_keyhash

OP_0 030f700c803608ce5612701e31e44a9de0dd69c3

scripthash

OP_HASH160 2e5f883286a7f6758db9daf998d2060ace9b4941 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 e3a570bc04509a921c4a41407d231c0f26fe6ca5 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_scripthash

OP_0 c7766552ad108c4b64ae1af485674427ebfaf4562683b40d01a2cd4fed93311e

scripthash

OP_HASH160 a50e6b9864d011b3c676fa5782b854e4e7eb171a OP_EQUAL

scripthash

OP_HASH160 7d29f3a1847180afc477448918c2ec5309da8b85 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 7e1819295c6df59f04488ca41ceb41d8072c76c6 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 7b377f40915cd0843e819f621c4553bd8e73c6a2

witness_v0_keyhash

OP_0 b77c800d4ba8c9d442937c642d843e4941b49257

witness_v0_scripthash

OP_0 b8f9b6e3438a7792aec81ecb7133be33e002c33bf92b06940914062cab552fae

witness_v0_keyhash

OP_0 f38815f810b9034b3d4d01e48f2cac68812e7a17

pubkeyhash

OP_DUP OP_HASH160 f30660c975c61f927cc2b3ca449196422b5f7963 OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 a96b2e3a785597dc46a486b07928d3f504f46366 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 ee343c3454eb277e25c8de25ee1c4a6c9878af34

witness_v0_keyhash

OP_0 5a918a30da72cae0cfa634b1efc5bc4fa2e824b7

pubkeyhash

OP_DUP OP_HASH160 84499716d1c97f69c14bdac482cf1b9bba67b00d OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 3bb85b90248fc131add87a4fa16696f476141c3b OP_EQUALVERIFY OP_CHECKSIG

scripthash

OP_HASH160 8e19ffbd42632a0ec6ef319021cc873feec80d99 OP_EQUAL

witness_v0_keyhash

OP_0 c6fce24f3e51ef760a2b15115895d585f041a42e

witness_v0_keyhash

OP_0 6c39469881100ef755c5f3aa7c7cacce3666bdbc

pubkeyhash

OP_DUP OP_HASH160 f4441c9a6f5af70d0fa54f4f5eedd333042ee8f0 OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 6cc6991f74697b8d1ea8b820b5b53206c5c40d3a OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 b41dbe357dd480719817addcedf88119b9469984

pubkeyhash

OP_DUP OP_HASH160 d2c4ea598f7a4ef1057152c3eeee17515498b55e OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 8dc93abfba686264e47e1fdfb5904d41963ebf6d

scripthash

OP_HASH160 397aff4eead4d74222fc02d1a72d09127e3bb465 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 98244ca8eead4cc2c63756d1ce5182def349415c OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 db0e760ac11983a45d6d9724508cb0b7e96152be

witness_v0_keyhash

OP_0 95d9e4f4a18243c7000f8fe345500c852d107537

witness_v0_keyhash

OP_0 ed10c7095d437eb739054eb890e3a6056bc9363a

pubkeyhash

OP_DUP OP_HASH160 bfeb3282b38bd6268945f884b21c005349cc8168 OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 581615c975f220ea906477de06ef2d2f8f8ea81e OP_EQUALVERIFY OP_CHECKSIG

scripthash

OP_HASH160 29626f04ef7b1a03817cd73a2247a4d7062c51d3 OP_EQUAL

witness_v0_keyhash

OP_0 a7463ee023b2e198d1cc2fd3e727ffb286ca381a

pubkeyhash

OP_DUP OP_HASH160 0c24c58cae5875f44fde8b473a4c644f7e7331e4 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 189044fdceee08b9e7980ad6f2c618c2d1dfa105

witness_v0_keyhash

OP_0 ba0b1d30768806edcb5e1e9900022269185a34b2

scripthash

OP_HASH160 8cc0a5697b81e770f912397e03c1ee71b4442a9d OP_EQUAL

scripthash

OP_HASH160 93b14f7e0ea596281426e17eb7d0ee33df01a739 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 5402e2b1ca1f085a4503edf94b5cc76dfe7654e0 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 79f1760bf950e5a15186067aab7e878983daba03

scripthash

OP_HASH160 1001ecf20e62395cb466700abae0a52d0fb1fbc9 OP_EQUAL

witness_v0_keyhash

OP_0 275b44cd9a38e51df10e430f43a4e7571568bcea

witness_v0_keyhash

OP_0 d604489bdd0fcc6d917ab3f73c1dabeeefdfbb5e

witness_v0_keyhash

OP_0 07f23001a5ce72b08328ff1eaef5c488392cabe4

scripthash

OP_HASH160 68a53767a508e5e799472b4b8c0a3b4d79f02bc1 OP_EQUAL

witness_v0_keyhash

OP_0 7e80db08bac404bfa8733936fa7be5d0392e63d3

witness_v0_keyhash

OP_0 2ee644cb26505a67e925d00f5062fb4f91a63db1

witness_v0_keyhash

OP_0 94022dd29e359678f456de7a563d289a174ece48

witness_v0_keyhash

OP_0 9a68edf3dbfc7274a02ceedd01b42c3b1a15085b

scripthash

OP_HASH160 033bf6fbb8d52713d66e14c1aa4ad31e8fb082db OP_EQUAL

witness_v0_keyhash

OP_0 26782ee83d7444d752aaba25a0cb7faecc9c16d2

pubkeyhash

OP_DUP OP_HASH160 389e68da48f15db7d3a66ab6c4cecac1ad52a2ce OP_EQUALVERIFY OP_CHECKSIG

pubkeyhash

OP_DUP OP_HASH160 bb43e33a33f4f932f8d894b0def76d826ab8b6f1 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 ec8164817c1b67ab8109d7525ac397f96f47e104

witness_v0_keyhash

OP_0 6b3303fc69eedf9a4b9fad80a7e7894c2f802b83

witness_v0_keyhash

OP_0 fd52d53e5b9dc4ec93c1f5d6b41f4fe8e8bd99d3

pubkeyhash

OP_DUP OP_HASH160 7804922b56053078e45ad7695f6b6d535841b98d OP_EQUALVERIFY OP_CHECKSIG

witness_v0_scripthash

OP_0 5930512cb79d9991e0eb6acd5c1d36879b5843bf0023150dd8b21410a8118d5f

witness_v0_keyhash

OP_0 fcdfe77e1a325111b2b36dac348eea29291c625d

pubkeyhash

OP_DUP OP_HASH160 09a1fa6ae441c761333ae55b8640862723a3c6dd OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 2c648d9c338f278806867830dcc0428a02af9588

scripthash

OP_HASH160 f4240e4f5db2e891dc99da4c3ebaee9eab1bb383 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 7a3a290fb13cb91e93059652bd82fe61b27267a3 OP_EQUALVERIFY OP_CHECKSIG

scripthash

OP_HASH160 c19245933b0f280b04be950c5a6ddea49a284188 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 8e591533848ce6cdde32a91a183362e2cfc94e74 OP_EQUALVERIFY OP_CHECKSIG

scripthash

OP_HASH160 e100e94f4d018951b4659088d12e0ef0805e4e39 OP_EQUAL

pubkeyhash

OP_DUP OP_HASH160 524f35652bfc607ad5c10a78091e32bb69d1a7ae OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 edea2baa2e87cdfd6e581428c953c51778713648

pubkeyhash

OP_DUP OP_HASH160 dcee2326b8d5666db3e4fa4ff30be22b0c2866b6 OP_EQUALVERIFY OP_CHECKSIG

scripthash

OP_HASH160 f94ca9ce5e0851127253307652dd84f33a4671e7 OP_EQUAL

witness_v0_keyhash

OP_0 61f705782b919c9520f322f818380bf0fd2ec6e1

pubkeyhash

OP_DUP OP_HASH160 2872a0b6cdb99f58467e55aac1489c5e3fb24638 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 69ac575157d5dc051534ed56e26debe3333756c3

pubkeyhash

OP_DUP OP_HASH160 1a1f52e30c99867e0b17ec2a2cf7559316332319 OP_EQUALVERIFY OP_CHECKSIG

witness_v0_keyhash

OP_0 823c1883b8302b887f35b4308ac3ff2cdcd9544a