Block Summary

Block Height
3157032
Block Hash
0ec88c531f6bcc987264a4075e78ffbbb9cfa8ce328f4dc41959e2c3abe808df
Block Size
88,460 bytes
Block Weight
353,732 bytes
Timestamp
9 months ago (2023-09-03 13:57:16)
Block Reward
4.2388488 QTUM
Difficulty
977926.8126285231
Merkle Root
6c368a07eecb9494bb02f8effc569b68748a0a9c8c41f63899f9149207e3df9f
Mined By
QYRCFD6V3GPiwVmnayEeTjuzqhp7xDQuFZ
Transactions
36
Previous Block
b7f1f35be731ba8913e42dc601ece49f62acb86811e92dac72f72c3c65c8d65d
Next Block
6d78588b69bcb327723a9dc2a542cd686c66a3687ed6d16577050e5d750394de
Transactions
dd5e462ec186c199a8df5578c19b5ee83e21a9854c26d52ff37b1c91dd22f578
709646 confirmations 2023-09-03 13:57:16
Coinbase Input
Empty Output
OP_RETURN Output
f5061ce97fbc4ada1e7f0b93c1b1a590858e69723692fef107ea022020ab44c1
709646 confirmations 2023-09-03 13:57:16
QYRCFD6V3GPiwVmnayEeTjuzqhp7xDQuFZ 104.12880101 QTUM
Empty Output
QYRCFD6V3GPiwVmnayEeTjuzqhp7xDQuFZ 104.17118949 QTUM
QMLwk4SXeJZdjgemanT247ji9cgJPs8FWx 4.19646032 QTUM
QTqnuR5QmEmS7iEUoShfcyirGD5tQnT7dC 0.16377440 QTUM
QhLjfHyQ53WaXF4YoobJ7PriE2QpMNKtV5 0.18907680 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18906400 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18908000 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18907520 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18905920 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18907520 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18907520 QTUM
QV27Bnjd93CS34sMXnJYYxGNH9GMzLXpTZ 0.18906880 QTUM
Qj1ZemG9T6UxKu6VsC3jF8C5uYok2Gs3Lt 0.18906400 QTUM
QeXukGViQV5jCarHtutYTZGLK7PVKkKEPa 0.18906400 QTUM
Qc3pZf82axB6ekEoYUaJR1621dfFE9k46S 0.18908000 QTUM
QVWPHUJDJeiDBL52xa7Fn7bLRi1H8cXNJA 0.18906400 QTUM
QgwG9duCxfoVViEFxwHUpFjgkL6aYnvkeC 0.18905920 QTUM
QSxtY2XuBUUAdwhLkxsb7X3D1QNMuhAJ21 0.18907200 QTUM
QY2dyFNGse93M5DS4EeewoSdn3taG59Wzn 0.18907520 QTUM
Reward 4.2388488 QTUM
38c964db885ab1ca5c18714763c1262794b9aa395ff89dfadca3ae7ada4923bb
709646 confirmations 2023-09-03 13:57:16
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 0.18908960 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 0.18907680 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 0.18908640 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 0.18908160 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 0.18907840 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 0.18907680 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 4.87509750 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 67.97917630 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 4.87509750 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 4.87509750 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 2.84013800 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 4.87509750 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 4.87509750 QTUM
QcZ1w1HRVvhxyWVirm6atod3EZu6qTwhV4 14.42230000 QTUM
QVikN6aQ3qfRjuAhF4jzqHA3Vez2aW5QJ2 110.74312740 QTUM
Fee 0.008464 QTUM
0770821b7a53627f65e4523e3609bbfc544a8e41b54204529060e8c6384291f4
709646 confirmations 2023-09-03 13:57:16
QRYezikhncvhrjJJKWexttJ8Bi91Dt2EqP 18.98596484 QTUM
Qa8Y5ib6ZbgagArDjYjh1ABDiSnC2EaQFv 51.30445200 QTUM
QZidawp2Fn6kJ84jyMiv8MKxkfQ9t9hdhj 17.51000000 QTUM
QTjDoT5x8VdmM6DiYWt3QqbtWbgT2atSLs 21.56840000 QTUM
QT3KwJukFnKkvedvzPexiCpLpvM1DKspbA 9.25920000 QTUM
Qgjo1de3rxk17tBnJnLJALve2LPXet8Jrc 1.72501645 QTUM
QVEAyat7dwQLj2NnyYb11EeD71scA9eMsY 20.00000000 QTUM
QfC44Ji5VR45qvwLtBjazLG7hFC9GWL84X 20.88729900 QTUM
QSN1hTy8bvwprxVJpS343pxJ6jW7TRhrYR 5.90000000 QTUM
QW2FGTM2LooDTeUYggKt4SVFe3DsL9X1fk 18.99000000 QTUM
QcCHMb9q9qSGzztHXxtrufrmknZQLao3ut 21.53090000 QTUM
QR2FvLSciUi9rbD7NywB5byS9nNZkdttr2 16.99000000 QTUM
QVTdD8RJynjitRMpLBbovxKJwDTdaTrLAh 10.00000000 QTUM
QPTY79hZvVpFTYpE5rx5JszMeAB6Muo8ji 24.00000000 QTUM
QMtd7jUb5wmHnXbkmQXGk4yKL1VYbW8HX6 15.99000000 QTUM
QgqrDHyTw4856SM6dg1Q2PpdSxTcmqoEUh 17.99000000 QTUM
QMqLji9ExW2vPv6z11YpdoGGjW5kWjoK8L 0.45359491 QTUM
QhzTAhbbxQrXAYaB4gRujyfRekQC8PHmpz 0.01142420 QTUM
QhuYNUWJoYZoGBXDmuuuz1g9WaT4uNFiUJ 293.06309500 QTUM
Fee 0.010308 QTUM
18987bfe6f2ca334861e40b5c660165b4a86699fa214b1bddcb5f18a7d08e52a
709646 confirmations 2023-09-03 13:57:16
QTqnuR5QmEmS7iEUoShfcyirGD5tQnT7dC 4.88475000 QTUM
QTqnuR5QmEmS7iEUoShfcyirGD5tQnT7dC 4.88475000 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.01000000 QTUM
QTqnuR5QmEmS7iEUoShfcyirGD5tQnT7dC 4.34374400 QTUM
Gas 退款
QTqnuR5QmEmS7iEUoShfcyirGD5tQnT7dC 0.16377440 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.01000000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.04147642 QTUM
QZewi62cj9MyNfWHXMJ1W2sn5G9VtFuvvV 4.88475000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.16672642 QTUM
Fee 0.2519816 QTUM
3b62f7fb33c52199448e92136d2f6467126ad55e16d1e4d87485d3567a5b7621
709646 confirmations 2023-09-03 13:57:16
50e55581ee83521f0b8c1deca69eafd1d85db501 5.01000000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.04147642 QTUM
QZewi62cj9MyNfWHXMJ1W2sn5G9VtFuvvV 4.88475000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.16672642 QTUM
127dd584ff4c6d0c7ee3c424a74660bf34fe34f715a6a9dcccd24e4ad6f9e39d
709646 confirmations 2023-09-03 13:57:16
QhLjfHyQ53WaXF4YoobJ7PriE2QpMNKtV5 0.18907360 QTUM
QhLjfHyQ53WaXF4YoobJ7PriE2QpMNKtV5 0.18909440 QTUM
QhLjfHyQ53WaXF4YoobJ7PriE2QpMNKtV5 4.87509750 QTUM
QhLjfHyQ53WaXF4YoobJ7PriE2QpMNKtV5 4.52359340 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
QhLjfHyQ53WaXF4YoobJ7PriE2QpMNKtV5 4.36058690 QTUM
Gas 退款
QhLjfHyQ53WaXF4YoobJ7PriE2QpMNKtV5 0.18907680 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.16672642 QTUM
QY2dyFNGse93M5DS4EeewoSdn3taG59Wzn 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.29172892 QTUM
Fee 0.2270952 QTUM
27875a315b8092fd98cbca5835449047e348512161dfc830e49a3cdd7ef9eee8
709646 confirmations 2023-09-03 13:57:16
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.16672642 QTUM
QY2dyFNGse93M5DS4EeewoSdn3taG59Wzn 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.29172892 QTUM
4126e92294168a21454cdd253d4dbd17df5b40549ff0b8176510b4635c862648
709646 confirmations 2023-09-03 13:57:16
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18908960 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18908160 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18909120 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18907360 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18908480 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18906880 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18908480 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 5.00010000 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.90503440 QTUM
Gas 退款
QVizJDxgpr6wzMfxdxzPTTP1eJEBmXuDhA 0.18906400 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.29172892 QTUM
Qc3pZf82axB6ekEoYUaJR1621dfFE9k46S 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.41673142 QTUM
Fee 0.229476 QTUM
99a09ca589d4e47b9f22178630e1fb74d972019759e2403d32a07211e02d6b0f
709646 confirmations 2023-09-03 13:57:16
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.29172892 QTUM
Qc3pZf82axB6ekEoYUaJR1621dfFE9k46S 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.41673142 QTUM
a66ddadf3c5a2e985e1e286852f4c344ed2ea66318d29f36dcb1b0a198b89e5f
709646 confirmations 2023-09-03 13:57:16
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18907360 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18908640 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18908320 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18906880 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18907840 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18908480 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18908480 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18908160 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 4.87509750 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.96850710 QTUM
Gas 退款
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 0.18908000 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.41673142 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.54173392 QTUM
Fee 0.230052 QTUM
aa5aae13b65f9a7e48d5ce381d58d4490a1132840d092f0114073e5d7a856fa2
709646 confirmations 2023-09-03 13:57:16
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.41673142 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.54173392 QTUM
812c36bffc63c5416f1cdc982c6d3f26e4e41bb57aa09690cb5662a83bc735be
709646 confirmations 2023-09-03 13:57:16
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18908640 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18906400 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18909600 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18906720 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18906720 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18906400 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18905920 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18907840 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 4.87509750 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.96844790 QTUM
Gas 退款
QUYJx1XpTvGt2yZVSPMS6d421fK6FC4FX6 0.18907520 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.54173392 QTUM
QeXukGViQV5jCarHtutYTZGLK7PVKkKEPa 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.66673642 QTUM
Fee 0.2300568 QTUM
c93f7cffd47f278257b85bd984ab8265eca644270d3f517097ebdec6734ec2ff
709646 confirmations 2023-09-03 13:57:16
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.54173392 QTUM
QeXukGViQV5jCarHtutYTZGLK7PVKkKEPa 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.66673642 QTUM
79309c0a2a1ede556eb9f66dce9ab6956bc880dba46a5c1f3998774fc409bb4a
709646 confirmations 2023-09-03 13:57:16
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18908160 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18908000 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18908000 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18906400 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18907520 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18908160 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18908000 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18906720 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 4.87509750 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.96847510 QTUM
Gas 退款
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 0.18905920 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.66673642 QTUM
QgwG9duCxfoVViEFxwHUpFjgkL6aYnvkeC 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.79173892 QTUM
Fee 0.2300728 QTUM
437abdc77ebe1a59d12c3ce3c8d41a31648c873540c04424b1cc318752406298
709646 confirmations 2023-09-03 13:57:16
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.66673642 QTUM
QgwG9duCxfoVViEFxwHUpFjgkL6aYnvkeC 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.79173892 QTUM
4cbb476015f695157b157081e14fc81bd2e54671df834d9eea3aeff49ce57efa
709646 confirmations 2023-09-03 13:57:16
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18907840 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18908320 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18908640 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18908160 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18908480 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18908160 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 1.63515450 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18907360 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 14.75425000 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 12.29374210 QTUM
Gas 退款
QNeVdRzrfkxnQxmmn3dzsSVfK9b3BLs9iF 0.18907520 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.79173892 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.91674142 QTUM
Fee 0.2300568 QTUM
c73f30af17645e903bf36fcad3c0b6d15750553d52ddcc906e1e3097cd27d8d0
709646 confirmations 2023-09-03 13:57:16
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.79173892 QTUM
QN7fgNrTj816iC57FN7CuyZbavYPxrKdsa 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.91674142 QTUM
cad585d8a18d6746f65a559e0904a0fac0c46161bdf31874773cfb5b8a907f1a
709646 confirmations 2023-09-03 13:57:16
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18906720 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18907680 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18906720 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18906720 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18908000 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18906720 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18909920 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18906720 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18906400 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 102.60221220 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 98.88404420 QTUM
Gas 退款
QY46iGTBLtLDBgnqjmhoc4NFkTchLj237f 0.18907520 QTUM
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.91674142 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 453.04174392 QTUM
Fee 0.2306488 QTUM
3c14a2516d292c4b940c8a8f0ac44a69f7be18346fc62aebccb732c35d6304a2
709646 confirmations 2023-09-03 13:57:16
50e55581ee83521f0b8c1deca69eafd1d85db501 5.00010000 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 452.91674142 QTUM
QZvgQdMANpSr9toJ5iehvCDq3RrxA2g3N3 4.87509750 QTUM
ede8d798574a5496532384c9a56266e0fee71e37 453.04174392 QTUM