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
439ffa07f7fd40670797a342403fa05e5a06c6c7b904c2ae665f58caf63cd95c
Summary
Height
Confirmations
20,170
Timestamp
2024-11-18 06:28:54
Size (rawtx)
10,025 Bytes
Virtual Size
4,623 Bytes
Weight
18,491
Status
Confirmed
Input
202.15391089 LTC
Output
202.15297189 LTC
Sigops
71
Fees
0.00093900 LTC
Fees Rate(LTC/kVB)
0.00020311 LTC
Other Explorers
Transaction
Input (67)202.15391089 LTC
Output (2)202.15297189 LTC
Input Scripts
P2WSH_V0
(witness)
304402202db16a62930c027974ec7d2f8df3bb9735632ab983391f79dc3d25a96598671d02205c2f0bb323d6c1d7cbcba30e651724d9e3b3d3160f3c3be469c1489dbe8ca3dd01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100f09cb846e773d69725d1102aac0cf493e08d04ee2f0c3e718d18ae77097688cb02200d58d45f4c587337a4e3ebd0b22e80dfdae208241f62fd645f7f21b87858a5ec01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402207e229e1335379429e2dad8e1e00d7e73a9194024a22d5b09ce244a0a65e6b0bc022049da0f3d3a4b299f9830c14e7c9463d80691f74b502d7925954d538bb4adb1f701
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100b1c1430d5d95ea54473518d0d9f9b39c53120f6b16e0c3a505be4f966614aeec0220524423fc23e5637125b30773a7cda6699f35cd8fb9962f246389b832d1f2f62301
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304502210099398b5811b46404f018b2d9518b9c1b6c8aa32570f3561a2b22cf097ebbdd5f02207892708c3641d61c9b2341c87d7e96cbc9a7391e02bdcc13a3eced304cfb7faa01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100d80e06768130129f7a6bf72b7359e10aa5565923d87d7a19a0a9466b0c3914ff022044747ede9931b0eee22b6bec0dd6bd7a793e2efce297797717efc83750f2a4fd01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402202398406c02cdcaf0ce9e6d83e6bedd6d2f0f92ad55b7ef66842c9d6d1a7e4d69022036f777ec0ed597e5acd92a2f66f05fb367afea85873fdf7c8ddb9837a55390bc01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100a3024bde58caac7a5bed22a83a405676f429310ae0a160d2766c973ea4c8099d022070ed31000faff5ae7623a6f8bb182adcf25644891d162e6f67fc598618bc547001
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100a7597fbe4fc0dde1a1708644fcf7c04ccc662b3df8086a348ccd225241035cb70220515eb37e4186e44e6d06eb07b54a8d6cf3dddce45f574fc4552ae6ea7c0b45a901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402204399ac9249d8620cd59ded199b556f9720805802cc332c8fc1e6b94fc9b88a8a02203fa18c7addb05705e8804ebabd568e0937c29d552c169b26a7a1dba410c98e9f01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402206d3a209a8d7ee7ea4dc384152bd0e92d0022f9f17d1a147752e79c90d830f82202202497f689c2b11f324e2e64f800b582db1e30b441dc61ef1c84eb7b05157c56e801
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402205cc1c12d01ddcaf5432498bafe07e40ab04bd98718206e6181a5ddf8eb3edf540220613364caefc87ef17e1591729033a6453ef4fd9103c17816ba9b879bf903070a01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30450221009e56c398865d8115e80baabecd7b228c153fa1e0eaf3594fd3326702b9215eff02201b2a1fa41957e8fcca0b91a2c90460a75d02ca06a9af788fd3c43537bf2dd7b601
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022034cb27e04dcfcb58f5ebab1d50c7c7f8791092a6dddb2b7373a42ab335a071b702206e8ada53a4ea0a8f50ac11d4415e4b54407daa46765efe38bf9aebfe17d59d7501
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100d9a9cffef37d2d76b3187d756d87eb8c7cf4085e717f6ae8675e082f60511b7502202aa190069ff99d03e4abee66abc6159b8d95782d53ac9faf9912f4cf22ab8dda01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30440220726a7ef29bfcde4e30077bbf9ba2279476868aa4ead6522d47f0ea4a4d73516602200c2760199a1e4f19a868a0553bf9ae102ada54b3d6f9b0365d1b5ebb2da0101301
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100bed24a913d3febaa1bdd4c7cf38375aa7054cfe32b119d13953bedac8543480102207aebe393c366f38a5bed5107ac89ddf45463f499eb4174cab17748866e0679f901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100d4fe580792a3e3fe02f0a5e9f635a12e7d91748f265730fb25337a3c2ade1bb002202f49f3b113c3a59b45e7a724e513887fb5e01a343225d29dabbbe1c0651c5db801
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100f14d69514fe6cdcf3f6f3eb13d3e551c6da3fd477062fec91594575fe8a7d0cc02207f9778b66b2dbf68ae0a1873bd5db40dfb0fedd3cbbcbb3e0b847758c74846b901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30440220652627a51a0fa3f060e083537a679b46d1992428b685e178befabf47eef8f5190220058b9384f9b984b0ac72129d1838fc0be1cf85aa5db60f10f657f414808db84901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30450221008060bdff4e5fe5e7ae93e59b645fe6cbe822d4c8a2c0ee6a3e6b50c88de705e202203bc130d7b19018a3c2662f5e849abee050708613caa415b9449328e2c9538b1001
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100e1772f36b2eba0f17195c0c3842731f92f93a5788c00f0094318fbf5e87fe75b02206da5404ff20eb732ab1fbb588ade5547d098e4933c426392c7e630a4bc6a1b1801
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022044b98dc0957f2bcd898c62fd1d62e3d4c99b96894da46777448bda7234a7942b02202ad1cba4135b61eeb39a247461fe10546d028ccfbc957dc35e91fbbd26b7f33601
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100fe9d45d4ef7e2273e56dfe3654d482683b1f9ed40db300211aea721f1b5908a3022068aca28aed7141384a89212846f496293f00d60410699ab6f118ebb732a6ece501
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402205e7a183123b5bfa86c4a76ea2e77476ad86cf51047ef020666de1544752e3fa902201b59751381f048492bec5983253a2bef245edc26bde857354e034621e4a8fcf301
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022033907c38762006efa8bb3c871a7fb999b77ed56428cdf66d99f9cd0793eddb550220619503afd05b611abd4fe1e253ad4b847db37c4b47e12db64952ff0c8589eb3e01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100faa18270f23e003a3193eb7a2b6e3f0d2a69e8fd8300b8201077cb4397df865002207e970d6ab3d95520a61f9a0724321bf4089acd7582c948e2e2308ca35a337b4b01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402202c0b59581f8e380c0ab33e9b0dce4544b17ea33127a394328bf88150750c199b02202762d9ad4c7aa99e63529e64abe710384c4a9676a55b680474416e6b2b9a2f2401
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100c1ca4e588b2cf3d9132fe8325543b000e153bc603a034f49775e96d4efd20cbd0220637444606224121b999accdb484fc1d8004ed45898d42c3b92dde547481c4a8e01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100dc3920cabe1a82e91cd081b95e3e927f74b8f0f9d97e70acd12316ec1ac6fe5c022064c57c5055913215379bcf7df1d70143fab50672db2d06165b78924c6fd76e9f01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100c49edc52040301743ff8689119264fdfb69d185a6b522e5668759b1a77294779022038402fc9ebb8002d92481f69ef9502b853306478de69a6e9065670d69eba4ff001
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022033f64982aa01a4cf7390ee57f3dcbe63b1497ff9587ef590a5de3b957fbd44b202200e29f5a48e3bae578582b12e3eb4d7ca01fa6c871afd7e0a3d14e0994939fa6c01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30440220762fbaa1e95911d6876cdc693e6cc3ccdc8d58e8238fdfd427b46dbc5253961b02206f15ad247c8717060d6a33e785f32e0ac0e4b906487e9b57c4c28d5fa9d3e8f501
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402207d99794b52cd06f245592864d96904f36e56df6b67a3c1820db15ff0aab35d9d022036a514fab4b641e5c4a63bfa8dc67ecb0c8295beeb8707fd9c18d7adeb90a2c201
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100e295b57b5feee3e07fbfc24a945909ca05d4b0c4fd5bec469bd8c146fed82e63022072b9929f21bd1fc0996176d6b695f789fa03a2d48f61f3544a4c0d43b427f9e801
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100f17367b7fa5521376200288311f3600b168e4767d57faad152194c5f17e2511e0220514ddb0646c55162c261c972245a599ab1758efa47b2e9d3cda823ad3294631501
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022021fad1621d2ab749a8c81dd1e2943e4b756598f0f141b1c7974b11aa3e5f394e02205521fbc3cbb6acd47f4d36a4c526e6ec65a2efe5eef8dc61b62160ab0c64d32801
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022100c89ca2360957b9334056e52fd71e8e38d4634c5f1baa79e184df7421d83d6677021f5c19b69346c13cbe0968c0bf0c2c7cf96ed147f517761a72b61725e1b004b901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402201d282dcb59760e452f2a3d4d0e1a142e584d75d839926765a836b4f738d289e602202caff76b32c9cf7bfc755bfe92e05521c8add98cda61075b50f4d7fa7c4b4e5901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100d09d707183861d019296c6fd78932b1f6980a242bb908d37cac96968150ddd9d022016fd2c59494c613fe245b2bcbfa8da8227db5829c509c2ebd9585331c963209801
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022062db9e1c889bc49a5e9aef255161002c84583d71bbd5bd5dec19c778c956e4a4022005a6d49d95e6f20a9062d820493b25bbee695f46de9cab08254d4fef05c031af01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402206389226d7fa8190745bd474e1bd998d2be0817930f693f57b2776be214cffbc702206f1f6d236519d155ced9807306eb753ba4aebf991a2de85a491bcb6b64c2b09f01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402204799977721d1ea96ef250e93edee95fdb9fe5a876a5f08c6bc2d95fbeb16f90502202592704c9ac45290aca220e5aa53166be5d9f97bf05f61e677feaabaf97d0bd801
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100bc1b6e31cf7b55199bedbe0edde2e7cd5ff05e69379d00369e462d941868ac3802202da78e7a89467ecedd0f7f986a3b64d0bfc8799ddd33c324cd2a20dad865f0ef01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30450221009930eb891a692ce4ffb68a7c879ac7ba2ad122c416cd13c618c215819f571b8002205c17e34b2241b31f1d276d63208160f389fbe2eda71c640528e6c3d2de94647701
02aa9ea684288e1f00901c5260e7b4d9c0d766780d0f12bcba139b176cb64cf097
P2WSH_V0
(witness)
3045022100f8337ae52aa95de87afa7088cf688a50b32094c5e0d1478c04576a741c8239880220615d8a4ada9ead9083f6d3c8a2183dfadab303c13e13232a8dd4f8b01ffc0fae01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30440220633e349bff6d336e422e1b341f4cdac68a2ce74c6234456ecff4b1078f04619c022071c7378dcf83bfbe9c2d89917504a8eb0b3e4a58c3ad201cc007b20fd57bd61a01
025a8bab1c7fc8c300efe8fc27979d7855ff9b3239645bb9cafbac74c21b91e2d1
P2WSH_V0
(witness)
304402200bef5d895d5b55f1e7b5b9aaae6a81c915e976f8524da6d231f732f40cc600df022055837f7ebc90972bde4436b4831ee72b5b4e649766c125c3603aa668e41b2d1201
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100f43211d3dadd3dc0d64d37fbbd1b50936a969e978e374fe73c97998000bbc07c022008e1d210c39fd514c866458be22e338c5a0cf41469ac3bf720387b2cddbd286a01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402205a602605357201be2bfd0ccb3d70084746b64d14569b9992eb30c08a753fecd60220679a4d762195d607546ddfa6047c7878130f4df759fc6386836cb9cbd920aa3201
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30440220589bb9881db4cdc9ead8c6d8492aaa3b476b17aed1de2d3674b52568ebfd719a02201d1af730f59b0d045c105c52ecd504bbf32c61935d690189a9dcb6883de5d1ac01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022015fead38ce244a57a29075c06ea6dabd6812e53fea0977ec22a06007b6ef67ac02200a7f26dc427f26f04f2f88c492753c3524fb1b24944f0061815dba30f3201ba101
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30450221008ef8817ee8fbf0f797380086dca3feb2f46c7b87dcaba47769ed2c995c0ff3b6022017e7910bb234f5d8c09c8df101afea2e7a67aa56e1d36ed71bc3a73369a0f87f01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304502210086f9f150522b13eac6834fcbcc3bfb4daaa8e36bb3dc814b216b90fee3d95ee5022007c8341d6e0e400cb84a92a3791a104d03a47e85f89088aa8ca92f979e7c4f2f01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100987a5f8486151c1db32fb72273537fdb8b775128ca233a0c79954f0c21f040e40220679c4f3315681f0a8ef12d2aaab616843328917e5a284baa203ecc9ddf04860401
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402201733c37badb9275c2eee7dee5c11bd5b493990641db6fa6714689d8e8e4536d102202d55c0b3829296b60f4e693f47c118df31c4d84a68aa79ddde16345ca0320c3901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
30450221008e7ba7abe31b648998abced899d8149047200d0b3a83f0c6fbf880d0e249996c0220139b6860a5b1dcb4492e6bd17d5e1632091478c2e171bf37eabb798fb45741a901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402203194792cf3fd7843c8d25d9a1cf5c04fb8cb9cd3cf15f6b388366bd6f81cc762022022d6fddf86a7c5d65435d9f0946b4656d3ebf50aa645c2f799eecb4a52123b8c01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402204ff03cfb94b2072c6d66af6d7adbec1be2ea94878f9927814e4322e5cbf752e2022071a2d4876c3a2b2ae6145ffec8e4d5e025d99d9371a144bc73e7941fbf45410a01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100a559a44e3c8b09abe55a6bd01903ef62f83b0ea06cf13723e83d328ac48c912902207111d764f6ffcef8e5fd1e440e4329a025166d119b08147478c1878041c3c28f01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100a48c99b945a6dadfb3cf6fafbe11e6b9354488cd82ca0129ac699b5071dcaa7902200b5a63b1969418bb21ee416acfbc38deacb83c2bb804bc44842c352d420dd4e601
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022066971f61f5d333d5f976e307ff1df79065ff6d95a52295a5290c9d5e1c68bd930220411d3d0eb2314bb82a35693b89900fe27a6de25b293af11d0c0351d9a453853901
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022072bd74061f702af58e1facf1423e90a6d3fe28f79ec854d55caee8956c5f5eb102205a6aa36e4ced4d1dc1f205a608a189658c1058a68d61b40599ee914d54af2ab101
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3045022100e933d9050af9a077b1ebed2800741a7d4e0540c8000a41b177ac7ad309825fd802201aee51e2b62518999f69877367decdcf1fc8bf3af4118a477c866613e3d25da201
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
304402203a50961ff49c3f9cc77ddab2678db0ec3f0d825e4253e141e92c6434ca5b8a220220748f90206d44da4ea35bbe0c185edffe848f7450955682ec8113b6b9c2fb9a1701
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022054b701a30aa5b2895ce130a9e8371c9659c370e3d0d1cc47f4b5b90a81681e1e02203306ccb2fe945d273831595527c0a7f90e6d58c698800ce7f2ab289705720d0c01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
P2WSH_V0
(witness)
3044022021eb795adc46729f39e3ef3fa2b90f37ed1fd8f621ff4ed64ee4354b7fa8df0d02204faa23c9025c9537c6c12c30f14143d3f7b8d83838adeea264fa0b33c459df1d01
02b59110e7789c7a7cf01ed86f195c78104ed290773bde90a799d20a8cad0f1739
Output Scripts
P2PKH
OP_DUP OP_HASH160 f9ea035a087ab40b03d1a00435931104ed4663f6 OP_EQUALVERIFY OP_CHECKSIG
P2WSH_V0
OP_0 7100c6bc57b1c27da8407a3228b1a908c8901a51