USD($)English
Transaction Hash
b3f1dd488bd2f7cacdd7f2718392415b77567712ef67521bf7dc384c15a09f29
Summary
Height
665,605
Confirmations
174,332
Timestamp
2021-01-11 18:32:18
Size (rawtx)
8,620 Bytes
Virtual Size
5,074 Bytes
Weight
20,293
Status
Confirmed
Input
440.00000000 BTC
Output
439.99349545 BTC
Sigops
120
Fees
0.00650455 BTC
Fees Rate(BTC/kVB)
0.00128194 BTC
Other Explorers
BLOCKCHAIR
Transaction
Input (44)440.00000000 BTC
Output (64)439.99349545 BTC
174,332 Confirmations
Input Scripts
P2WPKH_V0
(witness)
304502210089ae881ebb0723d7b0531865fbf4f888ee82735473837a1ce0bc937d15f9535c022048a79f37edecb2d65fc683fc0986852237c94a2368501db58d471c258e621e0b01
02383ca0ee2abd059099bc3f482072312f0dd6061014d20f177e2c093fbaca084d
P2WPKH_V0
(witness)
304402204955af4f2857238138b11340e1c6f1ebf4bb268ec1771c0b0dc27d81bb5005df022055dc8bd58ed4588e0150e3caf7815775cfb9b015658274ef96a504d85c2d8e9701
02b27ebf0a3f4b94d8d80cbd92eb1a559e8b1718e1e09a6d160a00ad48175bb342
P2WPKH_V0
(witness)
3045022100f7e2013f0d7aa76c4738b565e6147c969ec97ca1edd9fa901a9e0f2ebb3602d602201492ba41144870acadd70059df03506cfd40ce5302237c00a9ae1848476a866801
034f9658244e7ee51ccee06eb19f1d3b37dccc973cde1e88e52956a07227212d52
P2WPKH_V0
(witness)
304402204145291c9888a48df08195153bb823b68d7542d6232dfa894ae905aacb1f0aac022038701034b9a66da24767012a514df88edc08b65abdf13e3b61e1772e8f30c0ef01
03baf3c5651abc3b22b94c3c94976a0f4ad0eec4c82c33b7bfd73409ba3d44aa1a
P2WPKH_V0
(witness)
304402206bb423850b0ef1c1dd9a4eacadcd5c8d1c78bcfea72c850824fb31b6c83c2c0502202ced79960e7f24054f67d8a7fa89c5a5e3ed11054f2ef724590b16e86210c93e01
029268c175f9eaa547ec855c841be7100c439f61c5f5e5200d098a5e75d33a790d
P2WPKH_V0
(witness)
304402203b7718bee845265fe005b1b119e85f80281b55cf273b1ed93c22241a7595d9d702205544b8cdafd7d957bdc3897c2d29fb53f022d95501154dc98674eef8934a0ca701
027a5cdc9188ffd9cf04c51fefbab48859178a1baa45f27bad411d1156b71cba4e
P2WPKH_V0
(witness)
3045022100847dc7c420798483aee2e7685daae59c8bc502f680611ba72480750c321adcc60220582d441bc12146c9e148b44b3ff9e3ac9f48e496233891d7e8ecd8d7f63855d301
03a171fa0fd27417dbe826bbf5fa1b9394397720f7caf36da10dda7749f761cf46
P2WPKH_V0
(witness)
30440220136ba68805ace2309ea3ad6523e725816a1eb0c1af1e883c90e056a5095545fa02204059af6e720ebc7946ce398bb90af357813b6974440df03ee47b19e2b8a8a96a01
038e6a2d019bfbdfd7af5dd93c639bff3293cd1143c4b848c0bc20d430193b99a9
P2WPKH_V0
(witness)
3044022020507fb21dab0a628d763740a0e0effc04d729eaf3a59295687483f9ae1006dc0220313707a6162446bc5f809e4931ce4f08a1564afe646a1d067679239a7501cc2101
03eb1957cd349043da45f01acfc63bd6f95520209f3610fc40da587de4e47884fb
P2WPKH_V0
(witness)
3043021f634756de2d52a55a351235d9dd043d3663b6c67fc429c6a4a39982fbba6fbd0220447a12b8eea37ec3977fef49ab3fcca4457424d761000a157345e13aa2e94d9001
0333d2977a29c4d04df142d69c5294b4271ec3f384637dc2876ccc5a13020cf9c5
P2WPKH_V0
(witness)
3045022100ac847ef8fa5318eb7a631691e058ddff00aa3c36e554bfa3cafa4aaa23c9292d022031c66522d27b7b15dead4ccedf28270cf020f0168ba943f325b887e980b9cd3701
030ce48c267ccfe54f86df0c409537be760e27e17ce1d12d802892dee2a136fa38
P2WPKH_V0
(witness)
30440220427034268bb2597c0bd53e2c1c46e08bf40224ab81dea6ba0721211486707d3502204f73115c4983256cbf6a63ad483443e5367a2ce1189dc329d378f9fc48a00a5c01
034925f5c9f8247cb7ae4e0745cf7d07b170f1a9ad9038de196e75e57effb570a2
P2WPKH_V0
(witness)
304402200aae0b40cab42c28b1326a9e952032cbf0acc4664035df0657982f1b8f512888022021a6a58f6ba07c2b8ebcbc9fbe527aa3ad0264c309f5f5d66644f833281a5e5f01
03c30520aa6ccc9d4555f664f2a62b10342664deeecab3e0fde3ed69f5161dabd9
P2WPKH_V0
(witness)
30440220770e9aa2d81580e2e7e2d70f925f7d19e9f16cba99801589bc58a2558d78e8b1022016cf03ddb3300d8aeaaced09bd09c815fad82bf50d76d2b98f505e9c8955b25801
029edb239d2b4b630c73292a8c2039f89358101fd6d0f8a35c1978afea50899838
P2WPKH_V0
(witness)
30440220223fe5717ec05d81376b40660ee1a8a9d61ea2adc8767a8d3eaa9591bb1a7f9002207595ddbc8f37d5a003cba86a083e3209f7516a45d093ed21d4502324481fb91801
02c9063da2587273b49907da55c7c8278f3dab821e2d8bcfe6f0f8a3d6f8deaa5c
P2WPKH_V0
(witness)
304402204deafd3dc3d900fae541d174f25721d836c248ca41ec77d75194a67242df662b022073283b2498e570fcc4d6da57c2a58b4820a9da2347ea30b144285986c431a89201
03686c5ed343f272adca65a5bcf5be42b63a434bbce6430b5a860d5eb7ed4f6a0f
P2WPKH_V0
(witness)
304402200554202a2b68fa396ffc46e89de4276075a31f999bb79c6f4ff0e9bdd13cf689022060ceb806255158e6aa9005c3d317c18132e02184a1c449a3ef1aada2650b6cc601
02c09b992014ed7944e842a1e4ab2f3bdd981faff716b86afe3c47bf61335e5353
P2WPKH_V0
(witness)
304402203ada867e45e5d24bf6ea16adfcb14362f2ffe166ae306bb6ee999d3fe4b7f71502205bafc1448fb5d9dc1a78b7a0a2a0fbc2bfaf2489b80c0f6be3275c51ffbe02ee01
02464de45eb6202e35af34f42cd79296e5885d79ef0b1112c53b366f022063b628
P2WPKH_V0
(witness)
304402203067fc953d9113ab2020b0827e55cceed1bfb052901dcb4cb1d10aee324553b002207aaba0f080dd083736c97af819eb0127f95a63faae10953f7654842b648f10f001
02abebc212e6f1ab8ad32279dfe22b5e0ee92335a13394ca5cdbb61735237c6e23
P2WPKH_V0
(witness)
3045022100f4e1e2c4d319141e0a7c9eefb08c234b49604ea3ed215cb5467c7d9413ac624b022050f3a4f7ba4523ece2ebd185b46dcb783dcaf08adce8657e43d4d7300044b9fa01
035eb0d30ad9f931540b91e2cc377d3747c16fe160836f031679d44547ed682ef5
P2WPKH_V0
(witness)
304402203506259d989ea7aba3d72b709a18a75666045fe9be5c1e5d54845d53ca42c746022058632c88f9c5b9661cf021d3d7c9f176b9d6ab6bcdd430ab07103f156361417101
021981db5f744c0e7fddd264202b81b1212edeb9b2e3a5edd9a22bdc0bac9f229f
P2WPKH_V0
(witness)
30440220795493a759ef8daa69f44aed65e94d89df0288c1dd09fc2f9fbe76d0659ee5f402206c64eda37921eb859ee68dd328d15ae914578b43240a05f6051dfc9e2db94f5201
02123d8e5dd8ed9b86496765618c7b2021318128523d2de45103e118b59108fbdf
P2WPKH_V0
(witness)
3045022100c6b5b3d9a43c5eed78e9f45e0e838b78e97f86b466d8e0af485262b707c8c9dc02201723cc443238a2069b48f2eae85dcf260a5319382f10559a61b5ad9ef6cdd7a101
03fcd0041f3666903c9828621a9a9b871caf01da371a693c46923024097b5d25d2
P2WPKH_V0
(witness)
304502210084c12c5cbfb454560b75e4f1458a7b350ef0ed88afd66d2f29bec493c621fc0302204c69e00804ebc6357b79d72d50d977b2ec14a89ff4afa9a1d28dbba6e4f8151401
02d9163f68ddaefa2682263a70be71702dbb5075264d0ed4f4848ff6fa76f48d03
P2WPKH_V0
(witness)
3045022100ac97972eff0e88b5c86a3d965d0788f926b1eb8c2d9a33eae00c65c97d817b1c02202a9df010fa89cdafd51100a35492b0400746e6727c21c0acc3aad18e22b3bb3301
02da4b4ab2149f3e6f3b779500bdaf1bac532ff1e346be4e1ef1c157d7f5693212
P2WPKH_V0
(witness)
304402202a394ecfe5565b749e892112713a10d231ed1a2d571b4fb9b14c12a34ab9babb0220709d054cbdd1b540580e3fc50b814ed6fabed66d9d6913ca3e0b2b72d9e914b101
02b39f221f559561f3bd1a3e4e6590f97068f49813f95cd0716ffb484faeb89e2d
P2WPKH_V0
(witness)
3045022100f858236b30c243791b148c902f1e30ac7744805d24371aea4897e396848cccff02204958a935f526a9ba6dbd334312aa9140d7a6599050ef1adb493189f3614b12b601
03669d101a48d9173e1528938822a9cb54af4c0904c547e6dcfe1a12f582a7e272
P2WPKH_V0
(witness)
3045022100d03121cf3eb343d0a0770ff495273b1fc52763ae3f09df8ad2d2d13c2af454ba02201b52550d158aa486fc6686d774e8921a7f86a28abb5f954b8218aff3aa4dc5ba01
038f6111735f1fa228ac2443cf314b878a8d9825cc799f42922515405616114b27
P2WPKH_V0
(witness)
3044022008efa07f0c4813adb65c9c95da1073efa4859f98cc84bef10edc809ec0581b5502204360825c2b42204a4975e0908ec20ad1f9a989d068b14afbd17d59a0e826fee101
030657bb5fed258b4008c308a268591e815a1b552b62b2ff24a22b9ec1a6f06027
P2WPKH_V0
(witness)
304502210090eed7b38aef80847aa69bc5e78bdf65f26c1414db4f20ca7366ec61ea7f8677022068001c7beb048602f56a3a7c73f53ff95a170d731bdd97054b06dece85dff17d01
02edfa82e78c9617c3cf7a8bada62a043ad4287d7e98390ae5467cbe995ac8f49f
P2WPKH_V0
(witness)
30440220305df1e6536c9c7fabbdf18afb213660a006f1f9d333e2fd02f24ed3d48f53c302201080ca937321c74563826abdc990fddebf756b263ba18c1f4e3adfd796fa6b5c01
031f08c65b32c68fb8e677bba37633c78cdb4805191cb287df153a5261be3e2de3
P2WPKH_V0
(witness)
3045022100e11ec1e810040f9de9d2a83b7b95a31d7a9a890a01a0167bd58d1e40d3cd86b2022044a33e9ae60bf3da9ed60f107df899b64014114f2105c54958d379056b151b7c01
0274b03d9c7b3a261016a067a11d32654dd66791291b3c6017b5eb50e53551f116
P2WPKH_V0
(witness)
304402204d944d591e761f66a71400abdc187e90cd137728b85c2bd5be518652ddde128c022073ecf4ff0efa07cff00aef84de55837d5c11f4172a421775bbdf53227f04418501
036a9fd2c5237a4b7b3da679570aa726087dc61032f36a753f7454a37ccf586d95
P2WPKH_V0
(witness)
3045022100afb8d6e99d32dfdb23651e8d5084d6b4ac21d7cc051350910a95858850efef5202200b137a522a3bb798dc7c93edd0dd50c797fef678ebe021ad7826959e1b9b374401
035e00ef847f9f9eccb64e86209ca1e4d0d8c2ddd85dad4a3e9ba22db3ea86f462
P2WPKH_V0
(witness)
304402206bd435aa2da3e2f8415a1878f36fad2fc74b119c77ea8d0a08c141969076e720022049cfe8ca03c5cc534eff00ab0c193fd7ed401c80c6ad8f9475347adde47040ea01
02224e74a56816ff759be4bb87124e7339d6ff2a0c54880b292436cbd52791ef3b
P2WPKH_V0
(witness)
30450221009862feb8527922d3e118f2ecfdf86e2d153e10ed6d6ba4047872f16f1e04f2b802207a2dc3c20e063d8a0d15951bec0148e1b010e809f662ef51555b4cf10b77693601
021db68a9ff37b42de0c0f2bdbe7cbcee63a5a0b228b2381a3903a0748b5a993e7
P2WPKH_V0
(witness)
3045022100e5cdeab854d4da76b0debcc62012c3a6c266961abe019784b618961773bd50d6022026295ab6daa86e60bad1cf4e5fcf4a725d9e50d864fb124f6c634587ffa5e96301
0233c3ebaada81b3c609f937362f37c2a74595fbbb6f6b0d2ca437b92a3830df72
P2WPKH_V0
(witness)
3045022100d51aa243e260a7a6fee8189230a4ed3ddafdb32441fca290c5704be9b40b9b510220307d0e6b0724dc112fa9c06436a30869e232751b8662c0e8b580d21b3daf444401
02c8e474f3da9db8c2c4f09d8eab1131651857ae9ad72c6458b0acbaa5be18e47a
P2WPKH_V0
(witness)
30440220014de5b23f2a260de10777d38205d4c4dba52edbdff741b57b170811dd2b79fe022058e95f19a839b61cc7b6a72b23be293ad94a6f55517bb09c0417ecf8b592bf5901
035283582f5c5e6151e8e1e00578b44f90374e7fceace280ec596b4484033bc1ca
P2WPKH_V0
(witness)
3045022100b5e72daa50a490eef8a983f45b77e4d7d641b5623d0f59e855af544ba933241802204a118220db59eb9d7989e62863dbec8ca170abe7c869806959b42a085d82558201
03a098d6eb859840c7416b163e212ad621824da93588dac0e4cb96664ae11c2796
P2WPKH_V0
(witness)
3045022100a12b4e80be50ee7985e2763ce5e1b0ed2c32a7451cd9849e3187da6a7a3efb990220026c02e743bee08ed335e5f23d5106e5a0fa0589a2b8cdce501934d385f0506001
031902f1b1d4b5fb99edc75ea4f3136ce6610ffb733f5356ff421b42c1e49799af
P2WPKH_V0
(witness)
30450221008303897ef624f3400e36093b32273fe45b72a721ef3a02a57a38871fb02e78b202202bebf1c1b11496256dbef38134729f9075ecf71bcf36c0452c341aff78d98ae501
034c28f261cfa3e7619d6a0103f82e8be9644a71cf44e301da685377016cfe8e3d
P2WPKH_V0
(witness)
304402200501b3db822af7d7e1fce795b728a9e436d7763f00f482a004bb3f3a180ad45602201eadae2b93b15ce662a9f9cd520199cbdc225b3e0366f1befa5a885fd48c0f8501
029b3abc590eaa16fc0b46f04088ebce6898b9ed0358d86eada3dd117699a3fb81
P2WPKH_V0
(witness)
304502210088b30e9c2356a294daf4996e25d3aafeb818bd8a2322f3d6dad35447247a6dfa0220078d544372137cdb887a9156f458a513a700f0f12154d4c8da1a8ef3c4be9ef101
022860dcc4aaef4035a387ed79026f7d88270b3b085b1b54fd87fcd8fc27d4a658
Output Scripts
P2SH
OP_HASH160 004c1c54903dcc73513911dbea5e0578846e6a20 OP_EQUAL
P2SH
OP_HASH160 856610802e7ce981f8300bd4bca004eb9cadaf91 OP_EQUAL
P2WPKH_V0
OP_0 85799b6f78f7720f062e4c04a7589dcbcb12ec10
P2PKH
OP_DUP OP_HASH160 fc2136b3f5ba11a9ba70ffc443b419de5f0196bb OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 4b54450a05ea87d9aebbf9c08ae87d932fe629c1 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 a056555d5f5ae26c66872dc98752bd489dba96ad
P2PKH
OP_DUP OP_HASH160 916b2e95bc2fb5b61a4b15f2e6768dc0364bac1e OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 5f8c7bcedb8d87e520638785b5f46ca06407553b OP_EQUAL
P2PKH
OP_DUP OP_HASH160 3c44c7d67eada2a14220e320da07103f35739718 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 21623769f557a6575c3e3aac1e49908a5a9c18e3 OP_EQUAL
P2SH
OP_HASH160 9735f1bf553bc366fd73492049699ed726d6cbc8 OP_EQUAL
P2WPKH_V0
OP_0 0a941044c3ddbbc07ab925a0bdf1daebec9259a0
P2SH
OP_HASH160 17ba7c95d24d64b7d1474b3ce91eddfc3972047e OP_EQUAL
P2WPKH_V0
OP_0 8465c8bfde4990d09a4e3ef86ef47106b62ea2b4
P2PKH
OP_DUP OP_HASH160 64f7513548842663bd0df9c349f79c51159c6ced OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 8e964a2e6d98b3c6561154a0e1a03b5384280c04 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 ad04beac55145cde60c2e8c9af1f6a65adf12e9a OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 8ba58fe3720a262b137f304b61eb13ed6183ebba OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 8a174be4d5427377e01fda6cd7bfd9f355b3a756 OP_EQUAL
P2WPKH_V0
OP_0 9750c2411c60e08bc20c9b18ce5e516120432c4a
P2WPKH_V0
OP_0 a66c0852823a1d94d5e6afd861817f4cd5d48faa
P2SH
OP_HASH160 9c32f719e31eef0879ac34a5141ff826da2cbdd0 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 18d821d61196dbba72d5f1381390e94e09480b12 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 96cc4a1037c372d784be1bead314c1049ee5bfc7 OP_EQUAL
P2SH
OP_HASH160 d8029c8ede4e9d76ade01e4789730747c25f64a1 OP_EQUAL
P2SH
OP_HASH160 86f54ee9c0f2974e1e534c93577a7f4fc95b3c34 OP_EQUAL
P2SH
OP_HASH160 c15aa518fa72603c435c075a644c477e0463ab4a OP_EQUAL
P2SH
OP_HASH160 1088859c0892505229df6da069c5ed3c10d91547 OP_EQUAL
P2SH
OP_HASH160 4a3bbdf9e4850439c21b69517a5313cb8d3934b6 OP_EQUAL
P2SH
OP_HASH160 a14205fb59d6637c1fc0c57b636beb01b0010ed7 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 2e61eb449cf2d357e5afeb748a558d4728236855 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 4b4a49f0cc860f8a2094c0d47906d153ec34c4d0 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 784aed1ac6a15c80876d629763fb079bccb5dcc0 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 9e1a136f00b35d4a21881fb996e8d68bdc0d31b2 OP_EQUAL
P2SH
OP_HASH160 a3fa3e4d2662b59caba8c56f79635b7ac359c3be OP_EQUAL
P2SH
OP_HASH160 9edb4693a00f11858f1eb55e5de4daf223896df8 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 f22a3d7be344aad9249df94e44789d4510074f71 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 bbc18907052212f412d71a0cc75e0626977a6bc5 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 a19b30fa5e840e20acb3072672f682563c8a0d93 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 4e7b1b0c9ac73c9dd4cb5474a72fbf8e389299f3 OP_EQUALVERIFY OP_CHECKSIG
P2WPKH_V0
OP_0 8d7244b06370d33a81e2aa851c53a606f3c550be
P2SH
OP_HASH160 480f3730379270800d908273df56abe99d7f4e03 OP_EQUAL
P2SH
OP_HASH160 09ce0daae4299e4c24e4b01e7a1e82ffda3072ec OP_EQUAL
P2WPKH_V0
OP_0 27bea81abce68b239e66cec56236e042b94a3a27
P2SH
OP_HASH160 5feb1d27cd24452ff5806d00712da49c58f0bd20 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 d248a7846775d5db36a050efe37439dc895afdb7 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 558e2c9c69a2d46222ceba394ca9133b40b8ea54 OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 d5d66228f6dee331f7ac1596c369e652cc84a788 OP_EQUAL
P2SH
OP_HASH160 9803a2de0dcaa82e1324c0fc2acc4cd47790ec97 OP_EQUAL
P2WPKH_V0
OP_0 4071821969a5d667e476bc4dc0101c48a95d329e
P2SH
OP_HASH160 bc5e2e4639698933af84829219e255fce2c3b7bb OP_EQUAL
P2SH
OP_HASH160 9ada759c8d3a0ee51d117420f51d5dfdd4403709 OP_EQUAL
P2SH
OP_HASH160 404f0b1a4547b72420dfb1cab8ae939a10f5694a OP_EQUAL
P2PKH
OP_DUP OP_HASH160 1eb629602675a177f6ab11e7032f3057ae094ae9 OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 e2ddf7ed8b9a46c7a0c8869d04b2d38cafe33b8b OP_EQUALVERIFY OP_CHECKSIG
P2PKH
OP_DUP OP_HASH160 5a9c3542af53a6d25517bf106301543275c5ad2f OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 cf17fb1362f50823467aa039343e3ec4a61d9e5c OP_EQUAL
P2SH
OP_HASH160 50b5f96a612c4e2ffbe4dfbc56ce8ffb90ce65c1 OP_EQUAL
P2PKH
OP_DUP OP_HASH160 cc52ee4c13449c604e4953303bb8e237114ba64b OP_EQUALVERIFY OP_CHECKSIG
P2SH
OP_HASH160 77b73cd8ec2418244f3bc9f5322ee6b34e642f26 OP_EQUAL
P2SH
OP_HASH160 5956e941256a2d096870822e37222d95f2e17422 OP_EQUAL
P2SH
OP_HASH160 5828f65a0452d5e1d0abe70d760ba97c4d3faa20 OP_EQUAL
P2SH
OP_HASH160 c3a2d7df946d1101a99d2a25db25f705c7ee4506 OP_EQUAL
P2SH
OP_HASH160 241260977568326700bf01709b81722d5244e51e OP_EQUAL