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
504fc0607961848b4015e27ff736a4298677c7f6f056c5fdecff04ac387562e7
Summary
Height
Confirmations
150,656
Timestamp
2022-04-12 13:40:15
Size (rawtx)
8,343 Bytes
Virtual Size
3,607 Bytes
Weight
14,427
Status
Confirmed
Input
0.04361368 BTC
Output
0.04332336 BTC
Sigops
75
Fees
0.00029032 BTC
Fees Rate(BTC/kVB)
0.00008049 BTC
Other Explorers
Input Scripts
P2SH
2200201ef098bc7b00a9fe4bbf99fe3389601bc20eeb37de240db4b3bf37ae350d9820
" �{��K���3�`��7�$ ���7�5 �
(witness)
3045022100d3365aa28c72d7a0737f5aadcba981ae24ace1d8c604423a143df35b7ae86b4102200628cef47456372f6e625400e88d15872d52d9aed26e53a44c88788e65fef11e01
304402202be57069110a313a7ddacbd156a94cb259d6f734cdf513aa60b0b2a03a33ff9d02205fa4e0052dbf16ee0c327641191ea222844d419e5686f01f66799ea974dc4ace01
522103bfb13f64e794af49875a9dbf5265bf25d4033c3e33b3715bf8647ffa52cf2b8c21022a6ab9058bc5d31e4cdb52db5a6857b936fb3efd612f24fd3b0632a9b358fae52103d43d5faaacd7d511ced950e9b608b0923b9af724427d5f78451561e421a4622e53ae
P2SH
2200209ac87916e128c5dbf3ba6aac383cc0273fd3edf684f2c77cdbc3faf3db1f950f
" ��y�(���j�8<�'?������|������
(witness)
3045022100928b86c7b1bc869ff06c475181c54633fb44edf5e850db979b73f481fc0dc376022028d4213ccfd9a67b9ce405385cc475b3b81623e4bf4a0469b31e8767c28ada7501
304402203aea4a913dc6506df273c116c84d827ff5efcd113486dc400e6b6de02bb284e8022016b161f73d2ef7ee301fc61a792cc13b9d3f5240f45a4db7df76ecd98b19b4b601
522103aa1b4e47a46e98567c5829859e87c9b2185875398e171d5ff13c7932879d03e721036729d835c855ff3c29a5431fa40287570728a8c8c2608fcc41f986acb49c23fe2103f475034a899abed4779e0b4a06b69b3694f3a8260ec262880baa1f45761e807b53ae
P2SH
2200208888021f8c5c59eccc8978b70cb77695c15e587035c64d0ee168359923b40425
" ���\Y�̉x� �v��^Xp5�M�h5�#�%
(witness)
3044022040b22bbc0f8b18a008ba33ec320fdc95d7e759aa402328a05549a4b7c6e6d5df022013e5686311ce97a11e081541b835385e9b791cb734044e4c1d4337295bb37bfe01
3044022066678946e12bf5d7fd1b80b0388a8dfab69c3ef1b927a4ec630ff07c6f14d2f602205bf273c3e3694cb1b4b19728ae6a8d049f95d95b9efa1c27055fa07c3c1aaa7601
52210214d00ee5b595a31f06bcd402a0dcdf6feb3913d7dda767cb09444f1e92e1b838210386e1fac71929f7cc87f6a1e412ebaf72fef75ac66a2e9277a059c911569d86fe2102b80be3683fa845b5306376fbb10d03d1c56f90b8572fe9b20b6e21c519ab25f853ae
P2SH
22002016d71381319de6f73e99ec38aabff2ff6083c5318fbe635d936a11bb21b066af
" ��1���>��8����`��1��c]�j�!�f�
(witness)
3044022039b5c18dea9d49db86df915ccd2bcf52b38c3e12713653fa976a714dfa76e7cc02201dc83fce9538f3e0b40551cdea918ed399e4581897fdb7d6e3ce6e2f7f9c1d9001
3044022055509a0b4c6e0fe08703ada2c628ea33dd7f3ebd84c36cd2e7029fc1e7630dc30220097656e8d05eef8818e11d3801014d373313f7f444dd4b85d391e6e74a7cce8e01
522103e9ae46b6408ae3c9b2201de431fc9bf6f6181bf9ad0e56222d063ad5a19d74252102c2c9626943fe0816d1bff9e24ba62986960e1a8e12824bb7be55bc4d5408fde721020b819db40377c7a64535afb6e3bdb31deb2d71621d7ce7fc436b69e7bdafc27053ae
P2SH
220020a102bdcb34e4627ef68edad8662ebb52bae23e2f7c7d3682cfef95a2288810da
" ���4�b~����f.�R��>/|}6��(��
(witness)
304402202f94a2045f5dccb32b29fc8156c64ee00c675e32c1153c7865469d6cd7fe84d6022021ec2a1f07f93c4688546fc38e2b518d08238eed9d60d78829218135a787c8bc01
3044022056664fb9c006da8154848df0bf67bc13ac96981501748cb8853a14a7f25d8e7002205253d243a1f92d38a78da5efd875650f0f36bd300dbcecd330ab45f702bda9bd01
52210359e4abede08996d96310c3e58b8eec2b2b575d149a29d64b8a62a0587ff9d1f321037289eef41243646304100e77ad570be37448401d83218b1333aa901ef9403527210395abdd303eef4c36d1905dc78dcc58c7511275adbe062e3adec8186a703428eb53ae
P2SH
220020bc9959741a0ffd0767c1de5f3d6608a11d3599f07c339769c2dc21a22f33a824
" ��Yt�g��_=f�5��|3�i��!�/3�$
(witness)
3045022100d4ea824ed3a252aa569b1093fa002bedb7d407e63b4b1c771a8a2267b48b639202202a33b67cdfe09bf6bc7c27a3e7b0f63fe182a9c4025cd0ff29d3266149eb67ff01
304402203de692885377f1c035b61f643628151c85bf8a56d8f0289423a686184fdd512a02204488fa37988a5a1d1d3d89b323d33c19e4ff607049f26e382488dffb2a6b703d01
5221028d9652ec6534f958614f49c94e765835c9ce4fd9f2d84bab284b7b7e2aa683642102211ee0600e7b76b41fbcb4591ada241f12498cdd6ab00dfc6b9d2f6bd935617f21035364fb97fa71199c54a0755d28cf0c150916a1af795212e56ee9294691f5d9ea53ae
P2SH
22002048dce751765903d6e1a342d6070323948170f8d5ea5242f218a2a482f7e90a7e
" H��QvY��B�#��p���RB������ ~
(witness)
30440220607e76672ea67d3a1869038f798a15029ab083057f28a354264b3ce8e6a6335702202b50cbe0f31e3fb996b9585e2ad6a220d4427d17bf8c0d6eb462b8ef3e81666d01
3044022067cc8534b400d41be5a1c802c61520bfcf79e5bb36da8ef72290500d9a466da702202ec5c3de6d2e88f76448d69f5e2d21c6dfb2b860b6e21aac53c8c904a141d71d01
522103bed934a69ac623e16f8f05e7d17f3f2186af196bcc78608ddfb735e5ca0af4ed2102d0faabdc4f203e089d87310c17de169826d8b924af552ba1cc1cc70bded97050210222d38536c1b5320454baa045bb8c3fefa6184cabeea9b453e9f5acf545a6478653ae
P2SH
220020d51347e3eba9f58e360e1b7590401a84dfcef168f41161ed11a265d1557cba22
" �G����6u�@����h�a��e�U|�"
(witness)
30440220279c0193e16a0b4be6d685204c0ced7893c155e8c2289638fcfcdca311826524022068a0ec4a2a503c93858197cd3a86aa49b7f574f8a6311793e770125376fcfc2d01
30440220113f6eeaccf72913d3b427d9991d136fa5db683c5c18c9bdf427cc7928d930e402202f8ee61b50b8d08b1e428b12e534b89afb0cd9fbe4acad5b1e61064655398b6601
52210364b748616eda502794d6d9985a5cf64c5766065530ead30b25571c6a30f7dfe92102e7d83037d210281a40bc2d03f126a168f22fe6923fc6fd86ac94430300e86e4921027979a2de4595ad7dad50a62a2bafc21059fc928d2683cf429dc3a1985fb29ac553ae
P2SH
220020eca41e8e9c4c2fc569829680b5db604d479c9e17f37d62a83989d3278af9b701
" ���L/�i�����`MG���}b�9��'���
(witness)
3044022002ff7fe96325029ae98d6cdf47fac8b5b285b539e01d2295f0bf1afee329edc102207a86252130c1952429eac2bc4183eee680af9d0e8f98b59334d1e588c488a57701
304402207b3c4cd9b2afe0cbc7d3105bc068d60ce47347685c56cb5d01a14019628d1ada02205ab5e79b2f7f728802eec3645ac3e77b7c6b2f19ca5d063ba7fe35911651488301
5221027928f2c84ac501fd2cd0b5367364d645737f1d7f52aab2e4aa880dec28c800d7210277da3c8ca23b48379ba5f7308cba7ac4548653d1153ce6067381d422084203f421038a3dfe35a8040e285640f757ea98e95d0c685040d2ecf3181ae70287291aa86a53ae
P2SH
220020940deee557f3096c63733726c7de651ac9286b945d40472d078a2d30078191ff
" � ��W� lcs7&��e�(k�]@G-�-0���
(witness)
3045022100abc62cf1f0201c44df60925ba3359651e2f34583d00ea04bc1e367da5367612b0220482a2b93721bedbf0683c45cef27b13d2a19bb3f5e05d4501fbeac57a94bd16b01
3044022072175e6934f0d29d1f252f48d3219782044c531b6e0eb75d81fe1e9cf1a6c34402206f8c471d979c72e0971ad559196aeb73aed0b41afbca7338c4f297e095be6c6901
5221037eb346ba5c81f9b49582663f28c329a1fff34a56d8450c55589dfc2c4329897921038786efa3dc4f1c3dedaaa79e9ac4e5cf0ed594dac584b1276ef5b2f3a629b9ee2102b5445babf91ef27df021d0fb23bbb0a53b52e89de4601d5f1659ca61d5a18f2553ae
P2SH
22002058f3f73a3bc350c09aba33dfdd21919a06cc58872ff6ab10b57ada18553b3c9b
" X��:;�P���3��!���X�/���z�U;<�
(witness)
30440220519ee263a63ada21ec29d04128810f680e0ed90563dc69acd78df6399772a03002206c947be9d8fc8ff166a0352b200d2deb8d0022461cc2f5736fc0605e4b9230a001
3044022072d6192b9cfb633b82451558bfdc8cf7fd8d2703d3bf73c358bbb44002060e9802205553d9fcadbdfd2de6eb4ab34fb1511b823be2a4a5f566d168d6bcea94d7fc7e01
522102baeecfedf8c93a356b86c0f379daa89ecb57b1d0e167be4241c0ebf1f98b5f542102eb21ff8a7f43aa521cb83d87d09d93d82dcc909e01471efa06fa064af3c87aaa2103ac21794cca522c5a7ed198846592d8e7fb84a2ea4e719afa78ebcdbf52331c8153ae
P2SH
2200201ceb18f56a57c788cb00eafc557079c0ae41b3963fa54e95d86f4c422617bd61
" ��jWLj���Upy��A��?�N��oLB&�a
(witness)
304402200b13a5070612c58b73219a312edddd45e8adf5dcc2793224cd44b43d91026a5502203d4531819c351f164b62eaff82bbe24e0111a9630395f4cdd51cf79354d3f64f01
3044022023915494ef216424989a4e000e7718f2fda5a00850ce2b70ceb22975066c662402207f4a68d0d5f1aa9f23e05836428da555f6036cb4b31497fc929fe19ce009440701
5221026048c8fd2a2560fa537f24b15c72e29f31d11788b137a41bc798c59fdfba51812102226373894299ff7b56deff1b97d0c977ef6952cc9f0f0edbdb4b687d2995ddb02103740f4f07197a7a2bd89694f3ff2db8923d29515bc5995976c132b54561a99b9653ae
P2SH
22002060120ac641fe644f707e740821504b5d9bfc2fc67e46c005c830b8e75b4145c0
" ` �A�dOp~t!PK]��/�~F��0��[AE�
(witness)
3044022061ac57ccedcb6f13ca4600b63342d6da7824afca4560e40290e6fdb7ab418d7a02206ecf49bf187808c0aeeb5b38b455e45f4e25ff8b8b604e5e769970bc08d46c8901
3044022001e8d189272a917d831ecf8fc7a0985946da0d5647aebca302a4bcd28350e7bb02201be0fca18472f01698f58bec2b834e535c5e6608ed684b63daccfaa59fd315a101
5221033230bdbfa4bb7cadcc0157fae0d1a7ca56fb911dad81813bb3e976dc59c2702621030344b3a4c51ab50f1d43e445923ad30588cfbde58d0ce7bf7567d0bde7df689f2103db65f26dc8c5afaf7c1889aff41a513ee92c52a623b9338d83857f519f49c0eb53ae
P2SH
220020a9e07fa15e290d21b97232bab17f7fd19a43fc3af3c5bc26685dac5003428d8a
" ���^) !�r2��њC�:�ż&h]�PB��
(witness)
304402203ea03a690bdd489d323001688eed92cf17105e5e4282d5b61af459945d4c65350220093002e5ae57be5e78b15aa6a337bebad76da84d16da0c26a5ed84b16cfa59f101
304402202e61fad26cff538f5ca39e49fea863a891b6798ff060c97dcd63c2bfb8a15306022044ee372dc49b1372162531d42199dd8ea7bdeb40ea8a8c748c69d4ea8c08476901
5221032e524b284fe5b9c4dc4f68d54f761e63b9db7a8293104bb94c5bae158d3c69eb21024e38ea06752d761388eb5941237380c76d38fd7edf6e69364dd136fe20c31f582103c86ea95ab13c314fd8dca0b0334a889c4fa2332d92f1e9d2b616934c86e7ca6153ae
P2SH
2200201f5c47497e65f7e0369a085b100200ad72c9e090ae92eded540b9b21b4a6c640
" \GI~e��6�[�r�������T �!���@
(witness)
304402205c9a25774a228684a4eedd14cdc62b8a87b88e733758500c9dbcd3ae87d93c44022026900b44719a913587441256a32fa1a987abadad7a916bcfa3d8138d2732f26b01
304402205f2b030ea63c696a87377ccd598bb6c79cdedfe71298d22fd85c46a05db6763202207bea8af014fe79d30fb45a247d9df6e40708d51ebece27773322df5793e717ac01
5221029423602afff0ba6bf2f2c858585bb02d856d91429dc3216e84617ff99efa564a210222f290591239c87d392d352ee7b429d72cbd5271ec6ff93df72a52314cae784521023119bd4ba3d0826a394713a33f9c27e19fe941389f90ac8b481b1e9370947bf253ae
P2SH
22002030949b09f0e7e9e49eaa372f1dcbbce06b36ccbb198ec1f731b9012645075e50
" 0�� ���䞪7/˼�k6̻���1�&E^P
(witness)
3045022100b04f09b746b8a37dc3950b678c0c883ec396c7ec1e1a9dec09b7101210ecf5e202204a21e2b9278085af18ddc9cbd9a371397b956bf964aafa130aaffedeea9c470901
304402200b338a148a2d1a7af076f2e5e6aa3ca55b64b8b3503dfe9560de9403b9f4f44302200e92cfdc179d278df7c34cab85c59039bee4de9382378073f835f1ccb15ef40401
522102e82cc0e6569576ee47b7a3965b34d346927d54373167cdf78d4e6ccb119446312103862a7154b12411a50b6d8aec799c488fa1785959748d2b4e29e61d9e29358d6b21027b524806f649d13a2eca9657146918b4b8864bc58fa97bf578059db848385a9053ae
P2SH
2200208e1b13ac61a6fc81ece6dcc5b546dc71d7bb88aa7a769de14a2a7164b5ce8cf4
" ��a������ŵF�q׻��zv��J*qd�Ό�
(witness)
3045022100b420f4a9065534c6e9e23dd5673f5dc25fb80ad17c7c60b71d7fff4c7e57040202204387345c9b1d66704d868614d5c4b69fb30a4171738239303ea746ccb02220db01
304402204106083345f763b65d41fb6e06d6588c0b570301681d270bd2866f43fddaf2bf02204d96a10b13ee28edba6f0a63917cd5af0e174bad8e656138315ca8a96ff24ba001
522102ada6a785ecdab4258134ca990b7e2fb5ed44da4872780a5fb60e155b015c04852102d10e5468b7fe7febabee765b02da151829438f9cf4cbcbb26343d4e332962f102103600d2deff58799b9c708eb5ad5cbcc1940c816df46335b7b42eeb59bacfad8e853ae
P2SH
2200201cc9dc4ac8dc67d0ce70bf8daa70676019f1abeff2e1234c65c211fb3bcfde2d
" ��J��g��p���pg`����#Le��;��-
(witness)
3045022100fd0feb76db3beb6d53c84995298209b141af257e2703829fc9c6f01294a0638d02200c84b7d66d076485f276f963fd753f79933452065f559d2275928ff259bee3ad01
304402205e91b5e21cf89c395d2bb7ab55380ec470893f07b16a7e9a6e8701dd538a5d7a022014cbe6e164b9b57744d6de377413a8d315e1af6daf062781f351ceb205b24a8f01
5221028f3416420cbd1e4c63cff73d734944c2eb0e94eaf4246aeb2d620922e4fb3302210335f8756d0999df12c593af7da03fd77a74c28ff3b2df9250eb5c0c9eaf635dcc2103620f668664ced8af539b98272db5abb84ce1e07a6e4b931b10a565df8930e9e653ae
P2SH
2200207dd18c1b5fa42624d87e76f8d2e2607684ed2fdd8b0d3b85cb2945502b866ea5
" }ь_�&$�~v���`v��/݋ ;��)EP+�n�
(witness)
30450221009b6c9fded6f1f4157b2af3f074a5cccdd5b843b1230043fc0bd25cfa6cfd59a70220244c4f7fe4d7a0b024f0f269b9b17d33a1794e3e1910485cfd7d1b03a5454daf01
3044022057d2d1a1b7435c3ae38401d8fb9c80a1b8bea97fd167478302f75878fbb9fd86022054003c06d9943667c677df81c441570418d4b8377469467c1ae9abadf62de37701
5221031b850fed188312101978ce1a3984845368a8b23f3fe9f6694d463df2c117ed3f2103e75e6a69a36a61898713fcfdf7c5f8dc9b3f35048605853abdff70aae23739a921029f06d04477f13750f7ddd9ebaeeec111b395b6c255c14af7803e6daa2205ac0e53ae
P2SH
22002076da081259d54545cd729c10a3b28ad45ba67a4bf326110d11cb819afdea0743
" v�Y�EE�r�����[�zK�& ˁ���C
(witness)
304402201fb15a938ca9ae88dae9205f7bb6f52bdcfe66897f45b2def64a6684ed1c4d3502205e1c011c83e473bbc82c317972226371a8cda0d08f83bd4f71240a9b4553b00f01
30440220544fcc11da225b92e07fc6e1700329ef04d62d3613753b6dc67382f6bdd4cb8802200e7db63475521f76557c4171f659fafd7a5cb6a57bf3703fd3f61fa80c0482bd01
52210237d31c394759c6bf35fc8b858873460e61e065d2e1af9052701131e93c3624e32103051092cb1c25a6531dcf0e10ad8cb9bc3d620680c46ff4af8f15705e624ee2732102ccfdc7ff582824351035a8eef95c9cf232af22fe01d23804f6f1f458236ff36f53ae
P2SH
2200200394e38d7415f447e2ba2b039c67fb79b78eadbc0da713ba69cbefc415752c64
" ��t�G�+�g�y���� ��i���u,d
(witness)
3045022100df4f8d31b3a7961e7268d3f686c20815c2908ddf6b86ba647a5fd9232c508674022011b1a3608277a647a7e9da54d9c3b507e900b4d4d4b5b89a31bef09d45727a9401
304402202fa7362195a08220f856dc616fa56bb8a0458a7086396c386977b81f0a04939c02201fa8f71377064705eb78bc13b3e01c359b3aca998c60d9a8d945f2df93c685d901
5221026140b13f80dd888ec3511869e79261539488be01493243021efd5be7f48a18c22102c54fa692a9afa3cf11e6f00ce68524a88387ca32bd239a3186a6910c2075566d21033e8701e96da1681e6deb762754dc5fc3ad7ccb69d9bd0891e726803a7566274353ae
P2SH
220020b3cc459c38cca8f26949921325e9693c79404771b93148fd3f9ab300b396295e
" ��E�8̨�iI�%�i<y@Gq�1H�?����)^
(witness)
304502210090f28b84bc8940075ebdefc706dd04186dffe5362539ec6ad5559a599f6895b20220355bbd9c02c406e52c762e3bd0b6612656c84efe8987ec37c9cbd977f345d95001
304402205f97c3bb4f3f7f65b1fb2a692fc518912bd3f6d11ea9cf51ff05d4f3104ea73202202354c50f155f12de7c3e86486ce3019f60567b2408471c7d723b710d7838f5cf01
5221021c062b4e8e5b05cac51530d46562312ef190a8f88c8360924d5559083c69bb23210239fd2e84160bf31705bf4dd078a03d3058627c029153d4ad966074aa7999b3ab21027dea69c0f11791123aecb0ddd6fbcd3e36d45de165edff443a3bf38bec7a69f753ae
P2SH
2200206c1fad257d03bdfcf0776d93cefb41bdfe81aaece5a37a09d43cfbfeb9c36fb0
" l�%}���wm���A������z �<����o�
(witness)
304502210087a8a5eaa96a7e2d947b1db377c4fbe8335bb0bb01a2c3cfd32cf6d2ffb0d83802205902deab51a1333f7776aaded9d5518fa2e4b6f3fd307926e95a077bf5879ef801
30440220690fc86c8b8d27a828160bfa4c8628217610e8c3548c20eebf510dcbeb4c111902205c91ea56d5895fcaad0eb57f3231f678e69dff47f3ccfb52eca8cd8e3990159901
522102cb4f29bde762cc467ad506ef10e60b440cf0d6aedf64d0104488b4543fbc01ae21029963148835d7c9def8c664b012bd7d29516850cef5636089d3ae840a3f52b80b21020c7947a21112e0e25de0bf9d1da0dfb45a90ad9dc43f2e924004da643b05a0c753ae
P2SH
220020b45de7b3a93d9d3b0d8912693676dd7c9e0ce39f004fd3de07c885e84840119f
" �]糩=�; �i6v�|� �O��ȅ�H@�
(witness)
3045022100b1010ed5ed78b958c65957a386a96de8c0e62e8b816098a8422c9b2ec261410002203519306532f8ca5530727937ad6240bca8bb80fe2d4219dd125c401604778ff601
304402202c25a83cf234d199a8e9a3372559cf56d3437e7ab0697b05e4492f28aae1364f022025426bd3ff9c623dc0731f41cbff98f807d52bd0de26ee922d35b216f88926ca01
5221029af1fcf1ef887b0be8f7438a8d8593e9ae8a35ae2c8db05f4bc82e875fcd50a72103ac61ef4f1be041d39b87965ca2331537b3b86906ebab7f418d9e0fc18a4a30752102ec779b3f42ae24865e0b16bc24c18203a1049a26648fe2bf4958211392d7929c53ae
P2SH
22002031b83723ec50f3a05a9e72551a60369cb55937d715261f091124ed78a21cc68e
" 1�7#�P�Z�rU`6��Y7�& $�x�Ǝ
(witness)
3045022100da1db4dce45733bf30adb13a6b3eb7584e950861a519aa2032fd7cfe0db9827c022029ce0e502822cfb71fa7f51ce4798faaf5fe32d1b0efa03ca6647302e2b7932a01
3044022035aa6e5b6254f53ae4a4c993196be1ddef026234a409c1198697cea6934d2e2802201053f8b707190e22f52c865912588de77c4777b3f059684f315a15d9f979209c01
5221024e5c573f0f0d2eaff0afb1a1c2467b088ab2c2c27f80ab6e77946da43d6bd0602102643a8b30250c51b92b31c12775b9e13ccbac9b3d84ee3bda3aa1e09a59502be02103a0acbfdb39193106b2d4698bfc6b3a1b6a0a862beaf45afbc26db465f74ad53953ae
Output Scripts
P2WSH_V0
OP_0 53e92c95454a3a9e4a34886438b5d00bcccbc24513eca43ab9aa35adcb08f4d4
P2WSH_V0
OP_0 6ff5656a6569abb4d2abdfdeb36ddbd54cc036063256dea587c9ac98823d2733
P2SH
OP_HASH160 bbf0d2fcc99f8f7897fc0df625cbcc5d6d30c6ad OP_EQUAL