由于公司发展战略调整，CloverPool（原BTC.com）焕新出发，已全面更新为新品牌和新域名，继续为广大客户提供优质服务。
USD($)繁體中文
交易哈希
0c5df2469803d5ace7062ca08ed2c49220b5f103f005358f9e7bd5edeba4e04f
摘要
區塊高度
861,876
確認數
8,346
確認時間
2024-09-18 18:32:23
體積 (rawtx)
6,417 Bytes
虛擬交易大小
6,336 Bytes
Weight
25,341
狀態
已確認
輸入
2.53092156 BTC
輸出
2.53067098 BTC
Sigops
169
手續費
0.00025058 BTC
礦工費率(BTC/kVB)
0.00003955 BTC
其他區塊鏈瀏覽器
BLOCKCHAIR
交易
輸入 (1)2.53092156 BTC
輸出 (192)2.53067098 BTC
8,346 個確認
輸入腳本
P2WPKH_V0
(witness)
304402203da9e59bacbd9c182f776f0ca37a37da4a50449a5eaf8d0e6de1210761a515ba0220442db0664323a8723221b10733b0779f60e8f83c0940ccb4d2624459bc95519801
036d0c755c8d6cbeefe8b119866df76ed5ab286c2bebf8961808ea65831e252a47
輸出腳本
P2WPKH_V0
OP_0 e8d031d8bf88d53a87c06b3594befce1061d0055
P2WPKH_V0
OP_0 c8e853799ea1820d5ec227b9bf98a434780ca70b
P2WPKH_V0
OP_0 0ddf3c34f0817cbd9eaed6974fbfc8958be2d5b6
P2SH
OP_HASH160 5672fc67bb34821b4cf9a4729195363dfc871931 OP_EQUAL
P2WPKH_V0
OP_0 41fccbf8be6b9e25d9174d0e81831d9610560432
P2WPKH_V0
OP_0 33641ac2cfec58c2acb20456ad5eed07b16621f6
P2PKH
OP_DUP OP_HASH160 76b54cf8a4ff6160898bdb17bd8d5e2d8f85d4cc OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 febd3f082dc9224e2e8cf1a1d628d36c115f732e OP_EQUAL
P2WPKH_V0
OP_0 c365af3ea0d650daa05c8984f099e5273e985f7c
P2WPKH_V0
OP_0 284e98e34eeff3e8bc255a5299364f8f637b09a9
P2WPKH_V0
OP_0 13903d3bf87c10820ea8c2a3d123ef4e0c1e4985
P2WSH_V0
OP_0 0a33c9ac12a0e4b985c77eed2fdb0ddb1acc5c5b569f3dded6f87957c44e9e6d
P2WPKH_V0
OP_0 488d1bf69bf36132eb9f6019dbbf7cc2f34d06a6
P2SH
OP_HASH160 dbf2c825f1028511b42fbf9996f9d9792fba77a7 OP_EQUAL
P2WPKH_V0
OP_0 ad4c3a467110024dc6dcbdb648b9dee5ca3dd74b
P2WPKH_V0
OP_0 4236122388c4eb41963330d3451877b41bd2a40f
P2WPKH_V0
OP_0 b26f9b9a21ae3eb233346af11ca781fefa65cd85
P2SH
OP_HASH160 f378c1e28cd1ce64a7413678ea8fd8853ded914f OP_EQUAL
P2PKH
OP_DUP OP_HASH160 52ae6eed52f6187dfd821b3a715790da46ea49c3 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 5eb54b8f251cafc3652a0d08862c700ad8bf3d3b OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 84cc145ed18f8ed91482afa04e68e0118a506972
P2WSH_V0
OP_0 bd4f5a5edc36215359cbea88dd66b1488ba93877aa640a896b0aaf1693cf8d5e
P2PKH
OP_DUP OP_HASH160 78e2bfde7c3fe5dcb4e39dcfcf7d396c82011de9 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 3704a793711df5c00c139de76806f3b6e2e41c5c
P2WPKH_V0
OP_0 53cb8cbc3bb2915bf85e4c2741b9f2ab6ef7b384
P2WPKH_V0
OP_0 57a4169f0b5156565869f26052e2a6289011a087
P2WPKH_V0
OP_0 caf5144c5a16faf88746a7f62e77be4ebd3cb47e
P2WPKH_V0
OP_0 c21e1e07aae9432701aa20c3360b6f3e5031c1b1
P2WPKH_V0
OP_0 add381d77b277cbd06aed16c0bc6fd087d3b40b9
P2WPKH_V0
OP_0 cbcdf8dbcc270709bb81355e010dd84bf8b524c9
P2PKH
OP_DUP OP_HASH160 30bc0f0f0440b82ce15765240fa63d2433b59a90 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 8fd2a29ec8f3495caf8a65840892019d39011779
P2SH
OP_HASH160 4bd22412195d71eb36e1b789f97cc9825b9840aa OP_EQUAL
P2WSH_V0
OP_0 aa595ec01f3ed47e3317ee0866089dada18f1faff1f971b019c8a1969e18aab1
P2WPKH_V0
OP_0 a0570e7b4c95ccd82084e019ef0f26fe1c94e81e
P2WPKH_V0
OP_0 f31f88a0cd25b3e9ccc228e1475c6ac77c093b71
P2PKH
OP_DUP OP_HASH160 c26b0a9e10916b6c30b71573219793f7dbf259fe OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 933f04f1bbbdc511a44a24ffd13b05cf1e339e59
P2SH
OP_HASH160 2118e8383815e40d6dac0a932efbf9392b088bbf OP_EQUAL
P2PKH
OP_DUP OP_HASH160 ea802f91bc44dc95c8651f4b980f76e75ed5113e OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 b5ee0095c7fa6e99f6b94b9370e829674ace382d OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 976e2182da8e8b853665e4f6a0cd9363dbb9c65b OP_EQUAL
P2WPKH_V0
OP_0 c6f2c8f298c15d3604aff55de67b66385fa85d4b
P2SH
OP_HASH160 f26ec9b2cf1234dd6aaf9e89cdc9acc230d8b0da OP_EQUAL
P2WPKH_V0
OP_0 08e526443ff9c5bc5cce5dbb97e9b235e4f562aa
P2PKH
OP_DUP OP_HASH160 06e79b2cdb5cff88b850b3f7d82476207a1f5117 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 c203cdf3c5cb23470eb351550f6845857c937192
P2WPKH_V0
OP_0 90bfb3256de9ed21928189f32e08c0151c9acf27
P2WPKH_V0
OP_0 0cbfb42e7d505d2aae1898692af792ef2282d3b8
P2WPKH_V0
OP_0 775c5ec86e19fb37280ce4963db51678fbd26fd9
P2PKH
OP_DUP OP_HASH160 a17ca46f152153c4cf98c1992b4ddeda4afbe722 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 3750210c0c822c782670b31825cc0269fe94017d OP_EQUAL
P2SH
OP_HASH160 2f3ceace24ca3931d8654d107c75b687c5f25a0f OP_EQUAL
P2WPKH_V0
OP_0 21690633c892597471c12cb32f45b922ee991bdd
P2PKH
OP_DUP OP_HASH160 1f2f81a64d7a648eedbb4414a6508e9a11b68967 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 f88f9af3cafe51edf32268bcdbf5f6b05c3c9a26
P2WSH_V0
OP_0 641fc46e74e60bbcf447137b595e32fca1426c7f997ccc607472ebfdb1f6cb0c
P2WPKH_V0
OP_0 c5fa159b01d30d797d0f94686535446d8eae250b
P2WPKH_V0
OP_0 e8f8c4960c404ed7d4bd02f6d3c2518f71046589
P2SH
OP_HASH160 f735c5f96a0743786b49abd10d08465be98e5feb OP_EQUAL
P2WPKH_V0
OP_0 6d1145a62824043f88d72c0dbc052a497c73a89a
P2WPKH_V0
OP_0 681cfd49d7c4d3cc48b3ff83079879ba23a921e9
P2WPKH_V0
OP_0 ba3ed921e397d017115fb6cae019009bd06400da
P2WPKH_V0
OP_0 ef5e07cc9edea1e2d260e30d5f572505b3402b18
P2WPKH_V0
OP_0 f823db3e767f746c4ce9ee1dc0d1c2ef6f009ed5
P2PKH
OP_DUP OP_HASH160 ca8700ce7c67c026f89f574c7cdf19f117aaced1 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 62171b19fe74976c2c392befc4136aaf75b74011 OP_EQUALVERIFY OP_CHECKSIG
P2WSH_V0
OP_0 9084d8174f7a69d1d974e57c2cf5ce0e030dd18553b86d1012bec9b4f754ac0f
P2WPKH_V0
OP_0 f442eb5dc1bc67a819a00b35ed821b2c18f36d52
P2SH
OP_HASH160 548b99a38569f28d5930c10ef6b2ee4a89713797 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 6dd5bc201d3a7421b5153e2eac141941cdf698f8 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 0362c4e885fe8dee325cd588d6ca80d937b89652
P2WSH_V0
OP_0 9d4373193a67b051422d2612e384a4b196360e360bc0fcfd9c09dd93e3beecaf
P2WPKH_V0
OP_0 35ef5f3c818acfd8b35f231b6b272e399221051e
P2SH
OP_HASH160 3f72513c9621ea1cba649cb21b063cccf80c193b OP_EQUAL
P2WPKH_V0
OP_0 d8451f9caad0babda33229ae7f79164635b05fa0
P2PKH
OP_DUP OP_HASH160 accf4f58d559635cbb77e73c4732172c5ac7486c OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 4b05715c03a56d8a26e6b5df6390238423e98a6a OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 5e902ff3c0f8859112a81717ca9980ac6dfb2062
P2WPKH_V0
OP_0 471a5e4fe5705d0ca59a6c1fff5cd26c52a8e010
P2WPKH_V0
OP_0 854ffbb57fd5e531aa7cfdc0118f39597f8ac5db
P2SH
OP_HASH160 b3cc0282165f8ad0b11d73abb85ec1085144089c OP_EQUAL
P2PKH
OP_DUP OP_HASH160 b2cf28fb320836e5560b8b8e67af5cafc38fd72c OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 fe0cb4a5523d776ba0bbbc8374dcc0d1e1316a14 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 eee2ae28c4eb1fe282027c96d58da9a86d0d4561 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 935443f5344ef10de6c4ca2ae4cb0afca450973f OP_EQUAL
P2WPKH_V0
OP_0 8acddae5c35c917781f3c2554e5359428e3e782f
P2SH
OP_HASH160 7c2dd82c1153411891c7a117d1035c3426edc2be OP_EQUAL
P2PKH
OP_DUP OP_HASH160 5e7c19da9162e09f91b3a570f1dc7592af334df7 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 8aedf43735a4e1581341d7d6ac91a349527027e4 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 5d94c5bfad23435e36ef77f4f0380c7e1126194e
P2WPKH_V0
OP_0 cc61350329f9365aa31cc47a95a6d91a8ac851fa
P2PKH
OP_DUP OP_HASH160 e7d8c30001479214b0662f64ca8845447f994c57 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 2021ef11e4e35d6e5b440017a3a24bc235dc2d81 OP_EQUAL
P2WPKH_V0
OP_0 1310cfccedd776fc31c6a6a00bc95885b0999a71
P2SH
OP_HASH160 9efca02dd94d1159e6fa9408472444f10c4a8665 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 3a4a55c6ea0f68a988bc43a17da8330c4be8775e OP_EQUALVERIFY OP_CHECKSIG
P2WSH_V0
OP_0 5d3245e76bedc37d74f4856133c266591ee0d1c0ef4c8b90ff0996cadbc9118d
P2WPKH_V0
OP_0 7d4d56b8e5372ba0d1a21ab28bc59e3241c03473
P2WSH_V0
OP_0 21915271b904353dec18b470d23637c604683eaf1a37d242620c5bde8fca1797
P2PKH
OP_DUP OP_HASH160 daab08646598aae4c15874956c32d7d507628a54 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 49fb896ce1d6933c81bc9d6212510f545e8e6bd1
P2WPKH_V0
OP_0 9f15c9faf953b9b2faf0c7566d0a8421ef54acdd
P2WPKH_V0
OP_0 1381fba8a1a24c50d93a6f91493838c785476e82
P2WSH_V0
OP_0 daa72b0d87383ec62b23ec3a83996e7a90b625720ee5dff0700d9c0a42cb4718
P2WPKH_V0
OP_0 104c28f74de18386b9bd8d7d83e33dddd4839c17
P2WPKH_V0
OP_0 b7310f1cd79b0172fd80ed08a01909d1165a47e6
P2WPKH_V0
OP_0 6e1c488184a9aad293560d46d4047f2c3e26fff2
P2SH
OP_HASH160 5016a8ce48e0befcc65ba0524fcc4f6cfe7e0c5d OP_EQUAL
P2WPKH_V0
OP_0 38dcc095d3dadf034af0da586d1fa88d2791b357
P2WPKH_V0
OP_0 0287343e19da538b84a9fa9a3f50b54452276fba
P2WPKH_V0
OP_0 491253c99472dddb20a892be0ac77d0cd35bb96b
P2WPKH_V0
OP_0 668b720db20cf2e281f6007bbb24fe6a37ad99ce
P2WPKH_V0
OP_0 16daf7470b04ca74ea3a4d254e38f35d898c07b7
P2WPKH_V0
OP_0 ff4db513db85c9a5e56566e3e9a038962f63796f
P2PKH
OP_DUP OP_HASH160 c82975348f8497df5c78d3f1ca681ef816a356c7 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 69f128170f73a34a8bdae29572e1ac9a07af9e1f
P2WPKH_V0
OP_0 8bb364e9040ea826ee3fc30bc6a6c437bd42c788
P2PKH
OP_DUP OP_HASH160 5b9a0c86580dad65ddd17d08dd855e29aefd89f5 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 3875fb8ee66efda413e449f7bbe23d6b4c1ae584
P2WPKH_V0
OP_0 7de1510ef0d6ccd48759bdeb0ba63d35f84a8162
P2WPKH_V0
OP_0 0daf2d8045e1597ff9a5666d55725557cf748c97
P2PKH
OP_DUP OP_HASH160 a91c5d912b8c48e4d33fe6410879f78ed414eafa OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 203d1de54994e0e209ac4d19b1966871673053a9
P2WPKH_V0
OP_0 04ff05aff2c9510cce812a162dbc75ea04a2654b
P2WSH_V0
OP_0 a0c304d48425fcac07f627152090718048ed2bfb12d63b6dc0c135bc9245cda6
P2WPKH_V0
OP_0 904d0ff5f8bc7c6204cfdc749d7a89e9c74ef550
P2SH
OP_HASH160 f24048bd20552291994133ee81f00b1fa7a23884 OP_EQUAL
P2SH
OP_HASH160 df30f78be8e6b801116fc3451f042eeec26f08cc OP_EQUAL
P2PKH
OP_DUP OP_HASH160 ede62e254465f1eb0286c335a3c8f1ac9e8ed35e OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 f6f93639f0e98a4ebf6393231df466d73ce117a0 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 63da5a00cfb40bd81063502802eaedcc5bebb71c OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 5cf1a06e285d6e023972c294713e7ccd95151390
P2WPKH_V0
OP_0 6ef95a82aaa2bf4d797a4c31fb893192e71f6b70
P2PKH
OP_DUP OP_HASH160 d329ccecd8df8c4c6fcfd542b1914f637ae19b21 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 8d5bf3ed8fe7af64cd65eccaf4172109365906a1
P2SH
OP_HASH160 ad54a770cd01067c30763801ea558467a63f0750 OP_EQUAL
P2SH
OP_HASH160 38ace203d071a307f8167777ab975e5e866613a3 OP_EQUAL
P2WPKH_V0
OP_0 517e485f7c27793dd72ad459b00d8fa1782bc1d0
P2PKH
OP_DUP OP_HASH160 df0953635e2d184df821dbf1194973801666e804 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 60e6fb147c3447760ad4c9445be948317bea8c8e
P2WPKH_V0
OP_0 257e6bdbefcbc0969f28c650776839c71e975909
P2WPKH_V0
OP_0 3e78c294387930a6b68c636c36a5da50f3cca922
P2WPKH_V0
OP_0 1965f71abdc968cd7cb4b198b8041a696ccf4193
P2WPKH_V0
OP_0 000b28e02e2b45a012271c5da08752208be02e41
P2WPKH_V0
OP_0 730135da4ed6fbe32100d70e38781e682984319b
P2WSH_V0
OP_0 b0ca80ff73acea3ee41724b14f7f4066843817966e62f1974291e58a0ae79ca0
P2WPKH_V0
OP_0 76e1d65c08389501da5d26ff6c057d52077b961c
P2WPKH_V0
OP_0 7681072d1774ad4d4b9785de0395d4ce8bd796d3
P2PKH
OP_DUP OP_HASH160 5e7f044c4fdd7287a2318c147efc81a7a1c778b1 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 570aca669186171fedac1ffbc6678b1324b33df2 OP_EQUAL
P2SH
OP_HASH160 4cd7f763c788dc3da067ec809f136db790d07b01 OP_EQUAL
P2WPKH_V0
OP_0 236a8c58d457dcbed2c57c49a5a093b62578bdef
P2PKH
OP_DUP OP_HASH160 2d09db6599c3e084de4e0dcd2f7ac504634b6861 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 261727b2e2d3b1af0033f9c80eb2cca9f91c461d OP_EQUAL
P2WPKH_V0
OP_0 8d5d071cf1306fb7a43fbbbd9363741c1e68890f
P2WPKH_V0
OP_0 30e93597041ef443b35355dfb8f730cb5f2e1f47
P2PKH
OP_DUP OP_HASH160 3b3547a74f59ec07beb6b3da00e2fae04677bde7 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 b635591f49f537185d07d6f0ec1a0fe6f3ff4c37 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 47339b8a71a4adfd0650936a32e2d760b4d64db0 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 9a6f3b2d73ba5242cfe898485bd1c4c44e2de1f0
P2PKH
OP_DUP OP_HASH160 22c27036da810d4366b15104996e596abb25e8f0 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 c352bab9d10cf91e0c440ce1525d2bc4cc781b49
P2WPKH_V0
OP_0 04c6df2757385b552d8324560a1d24eaa8cf9766
P2SH
OP_HASH160 ba49c5e94eb4ff294e7721f60744ac5d75da2cb2 OP_EQUAL
P2WPKH_V0
OP_0 a94ae79ad4a8c7ffa7627e4f6b16f437535cb069
P2WPKH_V0
OP_0 0020534b15975c102ecb8c27d398a1d3d0e0fc5f
P2PKH
OP_DUP OP_HASH160 c38bf823dc29e7c2acadc1281e97f39a286ffdb4 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 a43d810e98cb293a297bac705269a3136e0eb8ce OP_EQUAL
P2WPKH_V0
OP_0 d5a8419b28f147ec8e799cde403c65d875ca7edc
P2WPKH_V0
OP_0 de1eb758004060b64b8d9f08f793e1d134772958
P2WPKH_V0
OP_0 c8d909bd5889223f8f45d055080d46a658d0ce96
P2PKH
OP_DUP OP_HASH160 0b8efab53fe604a812c1e3ae9807b6ded6bb3a70 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 6632d83dbbf076a11c069b6c9a42cc6c384d1bcd OP_EQUAL
P2SH
OP_HASH160 bf8f0a641bf5937caca6b1cf8c849511ca89a144 OP_EQUAL
P2WPKH_V0
OP_0 7864f1904eb3f7ad62cdf30e4c16baaf38f70eff
P2WPKH_V0
OP_0 fc575270780a048458cf44250e796df421c4dde2
P2WPKH_V0
OP_0 05896a51e66c786a2956b331577c432d40ed76ce
P2PKH
OP_DUP OP_HASH160 c377949304d1cd78136776c76cf560c5027b6dc4 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 b07a5599ec84eb368ee02f4bdac0187505b46fba OP_EQUAL
P2WPKH_V0
OP_0 162d99e29fa7cd9f00e4e67fb6e680b850a83ff1
P2WPKH_V0
OP_0 ae456782a78b67a2fd7bb8c2bd05f921f5d0aaea
WITNESS_V1_TAPROOT
OP_1 5d80a64950f0abd720648a98fb6ca8c26a86a4b9caa006606581c1d2fb4248a8
P2SH
OP_HASH160 2dfb9ed29a095e8cc5f2fc274aa334a4781037db OP_EQUAL
P2SH
OP_HASH160 d517c9f5d67d5b162d9d2236c062e518e9848ea4 OP_EQUAL
P2WPKH_V0
OP_0 f494d5e1c6d8503ce22568691e2117a5ffebd4e8
P2WPKH_V0
OP_0 b6ab4be53bcb6367e9ff8bd4170648e62f9bbd3c
P2PKH
OP_DUP OP_HASH160 afbb66dfbb1603f9732f3a2be99e22246cec1339 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 98bd0171970d651ee1d488538a268e1b33a14ff7
P2WPKH_V0
OP_0 f68ab811d12ab7e4ab437f9336d4c1c858c1415b
P2PKH
OP_DUP OP_HASH160 eaaf2695ccc3a00c0dcc921d7fc8b2f579da9e51 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 d7a170146f5a15c841e784c41afffee3b0b7128e OP_EQUAL