Block

368269
0000000000000000000eaaef30d979fb88be3f66612a1a772d63cfc43e5169ea
Transactions 402
Height 368269
Confirmations 508204
Timestamp 3441 days 8 hours ago
Size (bytes) 180937
Version 3
Merkle Root 04c7fcce799b4177c3da117740572cb308c73d64dca271caee21b451b4552fb8
Nonce 0000000000000000000000000000000000000000000000000000000020c8ceff
Bits 18150815
Difficulty 52278304845.59168

Transactions

e6edab26f74a84db7302147f24d9a46809aff535e14667f032bd35c20d743541
mined 3441 days 8 hours ago
No Inputs (Newly Generated Coins)
 
GMsaRuEJBEBQmGpqdUpWcrMbsQU7aUmLEg 25.08657670 BTG257.27 EOS→
Fee 0 BTG0.00 EOS
508204 confirmations 25.08657670 BTG257.27 EOS
1e4eb89db418c27e3044544b44c0f2ebdc7f724f86d75f3f148eb1e0867bc678
mined 3441 days 8 hours ago
GYSqCnPm7BV9AkUW5bcm1AKEHjAHr1eTvB 0.54356710 BTG5.57 EOS
GZB9BBwuBjAR1KZaBiWkqwdsd9bdrxTsdq 0.53800000 BTG5.52 EOS
GS73TnJogdCGoDfZjz9Cj8M37yhp9PQiVn 0.78450000 BTG8.05 EOS
GW21662ounAkE47zAZp7KEyAUW45oD5oLa 0.77000000 BTG7.90 EOS
GKgcEcFXMjGyihZ6JsZbvPZzYqiGuEaWr4 1.20380737 BTG12.35 EOS
GbqiuwJPacPTY86awU2JLnrWHvnhXYWwMY 0.24860432 BTG2.55 EOS
GTKuR4zzy9GavDvQpQfj6LKdXG8cZgMbut 1.12423973 BTG11.53 EOS
GN78TWiBt9mjtSJc1kTPdbmqdAV8wULG6i 0.58070000 BTG5.96 EOS
GRi7qwFHpFXCmkXy3d2TCj2oGoNpm1WNVP 0.50280000 BTG5.16 EOS
GK2CqJQekiG8rqCosu4CMDTD6tDVt5P2ep 0.21804814 BTG2.24 EOS
GUfpxksKV17HvQQwopzWzW4WHuNwqvQNs8 0.17632537 BTG1.81 EOS
GU9xbpv1gEosLiiVNcEKwij8qKshnUtJgz 0.32523851 BTG3.34 EOS
GP1oF1azaM2bVMo3ewpVb4Egn4mJ7Qqgrt 0.20000000 BTG2.05 EOS
GauEVjnK3CNSBVRySSSsfGgqXVwi1YRDPE 0.32201405 BTG3.30 EOS
GKuxN1LvDwDzme1WkQkREebYg43mxL86x9 1.36847658 BTG14.03 EOS
GKVbdNJktpiLrDUjrDiZ6prPvEEDT4svPW 0.36981344 BTG3.79 EOS
GUmN5PgscVrYxWxmTJQhenCDzajCmh5wVM 1.21350000 BTG12.44 EOS
GQABphTuonQA1cR3f7L7nbKCYASsZsG8Su 0.15987158 BTG1.64 EOS
GU4xZciMosjr3osGfajBRmHiSJ4veVkDBi 0.21764646 BTG2.23 EOS
GNY3dZyyRjydH3LZV39P2Xak7NZawMyPmq 0.35000000 BTG3.59 EOS
GTxd7uH3sPQCTUZAx15k6DPd17NtK96DPQ 0.44575389 BTG4.57 EOS
GJKyNH9r7PHcMEk9qbVGNGFDAduTR1znxz 0.18500000 BTG1.90 EOS
GbUeYjQ8ziFKVWuRDuhhA9Ts5eN7Kq8Y2w 0.18574931 BTG1.90 EOS
GgmsUYnUvTZrEUHssenU4SBAPHoGVEqLHw 0.83862486 BTG8.60 EOS
GUB2TkjZ55Qx23KvR4f1C5HieMC8RTtM4F 0.50298063 BTG5.16 EOS
GJ6z7omXbQ7XVRA5oLEk9hjS2UrBcYeK2P 0.34350700 BTG3.52 EOS
GcPdAivjsKZJTer7VRCSd4rN7QLiXRbKdz 3.91581000 BTG40.16 EOS
GfWpF7AheFL4i5gjoCCxBoFPXPynA8MJTo 0.42232029 BTG4.33 EOS
GUgAzK8HQNFdvtXERKU5zFBoWqu5pAUxPe 1.64100000 BTG16.83 EOS
GVirmpB8U4zZSgpbuUSMWdNYJTuJAw5Juk 0.50034695 BTG5.13 EOS
GRbDv9qATDxwwnuymdPcyGgNtvwF62o6qt 0.51282051 BTG5.26 EOS
GQpmserNemTMQHaRLbzLgivajwhDWATH7E 0.15953589 BTG1.64 EOS
Gh2EBVuNPvV8XwybePpxkNxCf4ZnLRU7V3 0.27711797 BTG2.84 EOS
GJK2uT2uKvxw7nyPANMz255Rp5MTZ6qzuX 0.29314365 BTG3.01 EOS
GgRf8HnufUPLhox6rFtqmW4iBkTpsvbynA 1.76200000 BTG18.07 EOS
GZn6pha3u5nTWWW9NyxAYoy7sRkwtx87yD 0.17646418 BTG1.81 EOS
GUH6tuzkjW52YN86TyHtTAjs75TNW76FTJ 0.84000000 BTG8.61 EOS
GYMdp9Vsi8Fs6n8q76tQnxnrFawjz4bNST 0.22750000 BTG2.33 EOS
GQA9J6sJAQvzNMZGUYWdGJFw14PW4VSdGJ 0.63000000 BTG6.46 EOS
GbdoEgMcUqfWQTgts2cwwSTtJyyiUW9vWS 0.36500000 BTG3.74 EOS
GQq4TSeEv6SB1Cc6MawgsJATZFmhZVsRac 0.78819810 BTG8.08 EOS
GZJkMSPbAZ1kVZwdkqjvvuWGCSfdkmxTsA 0.72419419 BTG7.43 EOS
 
GTS6gcRs4h8r7suL7hEi6nw1wkKGtGd2ux 26.85666082 BTG275.42 EOS→
GcPdAivjsKZJTer7VRCSd4rN7QLiXRbKdz 0.09665925 BTG0.99 EOS→
Fee 0.00090000 BTG0.01 EOS
508204 confirmations 26.95332007 BTG276.42 EOS
c2f7dc90b1ee9c6c5fe240fc9b3cfd250a4b077e9350336503c786226ab2096a
mined 3441 days 8 hours ago
GK5VGDH5k7SFWaH7JkFopJ7seDySSP3CN5 4.24059983 BTG43.49 EOS
GK5VGDH5k7SFWaH7JkFopJ7seDySSP3CN5 1.29000000 BTG13.23 EOS
GK5VGDH5k7SFWaH7JkFopJ7seDySSP3CN5 1.70980000 BTG17.53 EOS
 
GcspH8tRwroLEaFg3Zs13oS3WbbrBft9Rz 7.03160707 BTG72.11 EOS→
GK5VGDH5k7SFWaH7JkFopJ7seDySSP3CN5 0.20879276 BTG2.14 EOS→
Fee 0 BTG0.00 EOS
508204 confirmations 7.24039983 BTG74.25 EOS
9401e4f8e1fa195f66a207621e474fcc219a53b9db71cec59daf5eddbe5f01c5
mined 3441 days 8 hours ago
GVUEqyUFzPggn19s7m5TMcCq41ie5GEic3 0.48770000 BTG5.00 EOS
GVUEqyUFzPggn19s7m5TMcCq41ie5GEic3 0.56290000 BTG5.77 EOS
 
GMXHwq1YMQeDc27pE76myWRVFauK6ZTdnW 0.23038100 BTG2.36 EOS→
GREp8dMivazSwWRhpX2hs5iw5szfvAVqMi 0.82000000 BTG8.41 EOS→
Fee 0.00021900 BTG0.00 EOS
508204 confirmations 1.05038100 BTG10.77 EOS
e700112e34b75bbf76a5d5109d19c1cb8c83e35e0bb1969167044bd7a3482934
mined 3441 days 8 hours ago
GXc8Q2gHQtpEXKkJqqr3MovzYu4AngTskb 0.60000000 BTG6.15 EOS
GXc8Q2gHQtpEXKkJqqr3MovzYu4AngTskb 1.00000000 BTG10.26 EOS
GXc8Q2gHQtpEXKkJqqr3MovzYu4AngTskb 6.00000000 BTG61.53 EOS
GXc8Q2gHQtpEXKkJqqr3MovzYu4AngTskb 1.00000000 BTG10.26 EOS
GXc8Q2gHQtpEXKkJqqr3MovzYu4AngTskb 6.00000000 BTG61.53 EOS
 
GaSgTMraRJ3P1z7qfE1m6kotyki4fNqrK4 10.94877724 BTG112.28 EOS→
GXc8Q2gHQtpEXKkJqqr3MovzYu4AngTskb 3.65102276 BTG37.44 EOS→
Fee 0.00020000 BTG0.00 EOS
508204 confirmations 14.59980000 BTG149.73 EOS
493e2d7ee6d3577d617715ef0422933a5e8c6034dfd5072b8774d717378968ec
mined 3441 days 8 hours ago
GbT4hzf6VEAsBMUA8AdidhzPtFfYT17BQu 4.06711685 BTG41.71 EOS
 
Gab3dFY8HucLYsUHbYuHoG62WpDALuaJhN 0.21094821 BTG2.16 EOS→
GbT4hzf6VEAsBMUA8AdidhzPtFfYT17BQu 3.85616864 BTG39.55 EOS→
Fee 0 BTG0.00 EOS
508204 confirmations 4.06711685 BTG41.71 EOS
5b9b797e73423867e701eb093315d10e73f45f176a926e96253d9cb2cea4ddc7
mined 3441 days 8 hours ago
Gcr46bWuZTdbdWjnfjAgj9tf339Wrrscbh 0.65000000 BTG6.67 EOS
GX3X91AggHBADaD7PhCSYRRBnqrybqVXmf 0.01032400 BTG0.11 EOS
GdgVzt4Whvcs7SqgebNM19CzzWQShNbpD4 0.31520558 BTG3.23 EOS
GXCJDF88yhtEUG9MHSb5KwDXfaLLWsQPUE 0.01000325 BTG0.10 EOS
 
Gh7Lkkdg1dVU6xWJz4r62F7kwJ7XPKGGvN 0.98453283 BTG10.10 EOS→
Fee 0.00100000 BTG0.01 EOS
508204 confirmations 0.98453283 BTG10.10 EOS
a0a1ae15956aaf7303597fd68fe64fd4d93d2a9b21aa8d5b52ece2cfcb2b1fa0
mined 3441 days 8 hours ago
GNChkuLFS25a1w3UXgEbhLpwDB7WGQYrEL 0.04762690 BTG0.49 EOS
GNChkuLFS25a1w3UXgEbhLpwDB7WGQYrEL 0.04689463 BTG0.48 EOS
Gh1pUSFq37c1PBWZyTJX8BRDtEdvyfzF4v 14.68437474 BTG150.59 EOS
GNChkuLFS25a1w3UXgEbhLpwDB7WGQYrEL 0.04776041 BTG0.49 EOS
GNChkuLFS25a1w3UXgEbhLpwDB7WGQYrEL 0.04703216 BTG0.48 EOS
GfM2oTL36bJ77gzKaTJPKeVHAfGaorWoQk 0.15058450 BTG1.54 EOS
 
GJpVPqJZeFLwqtxR3GF7vf19ruyV5GqMc4 15.00000000 BTG153.83 EOS→
GRxTAyV7pwL8VRZSr8gpq5dNAs3xxUCcrv 0.02327334 BTG0.24 EOS→
Fee 0.00100000 BTG0.01 EOS
508204 confirmations 15.02327334 BTG154.07 EOS
39bb03a88e61034ae0dc9d146ec7e29221d30428edb87a89fded21e7a56cbe7f
mined 3441 days 8 hours ago
Ga2m5z2Akp6KRa3PZcESd9UjGFSv3rJrX3 0.59000000 BTG6.05 EOS
GJTHdvM4dWHA85HwXEUPXt7TozkCoYEcbD 0.57000000 BTG5.85 EOS
GVmxAJNQ6Ujo8cqwp8UNt634ZT4GJwW6de 0.54524645 BTG5.59 EOS
GTDTY7kwnFFt1dxhVzT1hEsRHXoyWe7nUQ 0.53000000 BTG5.44 EOS
Ga2m5z2Akp6KRa3PZcESd9UjGFSv3rJrX3 0.53000000 BTG5.44 EOS
 
GLd7PMUB4E5mZR6ZLQs451yAawxJLrbVi8 0.26514645 BTG2.72 EOS→
GUNZYyrYGucRax5WEyd4xjotwNKHgFE1QJ 2.50000000 BTG25.64 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 2.76514645 BTG28.36 EOS
f0eee7cf6c4253b73e9d32cca95c8c4f18780ae9cf071815a0aa3d2d5ca3dc03
mined 3441 days 8 hours ago
GcffQ7urzb65Duza63CutxaZhyf299FVVP 2.48392700 BTG25.47 EOS
 
GKPDuhaNakhVpct3Tf7pcpGBMBMV1ZKCbr 1.05618900 BTG10.83 EOS→
GcffQ7urzb65Duza63CutxaZhyf299FVVP 1.42763800 BTG14.64 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 2.48382700 BTG25.47 EOS
09f8634989068888938938ce0e6f0919657be30058c49421c6e041fcf3327eff
mined 3441 days 8 hours ago
GNQXRCiBgkt4gcYmmUWqoAR1B9faQDQcmv 0.53451327 BTG5.48 EOS
 
GQytNnqbV9hRgy2wNp1qVccckBkw5bmLaE 0.32604376 BTG3.34 EOS→
Gh7Lkkdg1dVU6xWJz4r62F7kwJ7XPKGGvN 0.20836951 BTG2.14 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 0.53441327 BTG5.48 EOS
b6c4c97ed79574db85446b26ae75bc4589f39027541ca46a1dc8db9fc5769dd4
mined 3441 days 8 hours ago
GWd8GrEWUsXGC7eUn3ZpeYDuEUby7VXF5E 0.50000000 BTG5.13 EOS
GHtD2viJpnpRGAoEvwdRX3XfDbUW3fsVUk 0.13000000 BTG1.33 EOS
 
GWYXRqQ31YxQtCTAtFaoxqwQ2JjswWyY2w 0.62900000 BTG6.45 EOS→
Fee 0.00100000 BTG0.01 EOS
508204 confirmations 0.62900000 BTG6.45 EOS
e1c1c2bc16ef1f9eec2b4402be14bb75f5d4b3382909eb353cd435c582a74c31
mined 3441 days 8 hours ago
GStavLC2FAxSAV7AyptngYS52NpAFARdUZ 0.14700000 BTG1.51 EOS
 
GTZ6E1S1P5NMku3QoHNBDdsGr7d6yXNmtC 0.13566799 BTG1.39 EOS→
GfnNo5Pgh3CJqvbQWhxXm8KN6z6xvAHrNk 0.01033201 BTG0.11 EOS→
Fee 0.00100000 BTG0.01 EOS
508204 confirmations 0.14600000 BTG1.50 EOS
6ef6dcc632a0aae39a2d8f0070f65a457c191c46e32447714bfc62949dd8a71d
mined 3441 days 8 hours ago
GeqR46n4ZvjZvsFGMoSf6De9cNCGgh3cY4 0.88807600 BTG9.11 EOS
 
GMPBD8sxgVxYAJRf5p1cxaZZSRasocJXZW 0.88805700 BTG9.11 EOS→
Fee 0.00001900 BTG0.00 EOS
508204 confirmations 0.88805700 BTG9.11 EOS
b1526d60895bb2993d35dd3aacb28fbef2ce19d6ea84ca3a7a2b8b1302cab27e
mined 3441 days 8 hours ago
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 1.49840000 BTG15.37 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 1.49990000 BTG15.38 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 1.99990000 BTG20.51 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 1.75430000 BTG17.99 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 1.74820000 BTG17.93 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 3.99990000 BTG41.02 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 15.77915000 BTG161.82 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 8.79990000 BTG90.25 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 2.07281000 BTG21.26 EOS
AZFkxW865fGmtRXqS4jPvNPErsy1WvHGgp 1.75240000 BTG17.97 EOS
 
GKGUeAZUmrLv46i3dEBAF7CcG8E5JWKZeV 40.00000000 BTG410.21 EOS→
AcoA5SS3YHMX88TAumdxUv1DEBBZ1K9dzD 0.90417333 BTG9.27 EOS→
Fee 0.00068667 BTG0.01 EOS
508204 confirmations 40.90417333 BTG419.49 EOS
f8990586139cb96ee8a5f88cdfbacede5a8a8be9bd78b1286e9e737bbb1bf468
mined 3441 days 8 hours ago
GfiB2YZbiKdYbSyjYTL3ZASMqQoxyG2nrw 6.99930537 BTG71.78 EOS
GVxibDCDbxYt6U4WKZLig7n13susUwDJnR 4.65991607 BTG47.79 EOS
GVxibDCDbxYt6U4WKZLig7n13susUwDJnR 3.25944709 BTG33.43 EOS
GVxibDCDbxYt6U4WKZLig7n13susUwDJnR 3.68866847 BTG37.83 EOS
GVxibDCDbxYt6U4WKZLig7n13susUwDJnR 6.02240446 BTG61.76 EOS
GVxibDCDbxYt6U4WKZLig7n13susUwDJnR 3.39077700 BTG34.77 EOS
GVxibDCDbxYt6U4WKZLig7n13susUwDJnR 3.06252656 BTG31.41 EOS
 
GJXvZ2fUcEFov2uT516ibBbgDWPbTcppoj 30.00000000 BTG307.66 EOS→
GfiB2YZbiKdYbSyjYTL3ZASMqQoxyG2nrw 1.08284502 BTG11.10 EOS→
Fee 0.00020000 BTG0.00 EOS
508204 confirmations 31.08284502 BTG318.77 EOS
df03d953fafa75e3aa72baf861b66d8864ce03a3cbf3d9e351ed1500765a807f
mined 3441 days 8 hours ago
Ge3uyayyvdEiSCZJdcr7ekyoYcNBadtTqp 0.06551239 BTG0.67 EOS
Ge3uyayyvdEiSCZJdcr7ekyoYcNBadtTqp 0.43000000 BTG4.41 EOS
 
GXkMDTih8EPBMWxkzrKvYeck5Gu4eewgT3 0.49541239 BTG5.08 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 0.49541239 BTG5.08 EOS
d970803407bc2accf6b106d62d3d8017ab98518eaf32370e851bd1aee5a4bedc
mined 3441 days 8 hours ago
GViLyW2hxZFu3DGVd5wvgLwyY3LrUMwNqm 1.70919483 BTG17.53 EOS
 
GJsqUR9kfQMCTKjEjJ8gh16brigGTQJFhP 0.59296100 BTG6.08 EOS→
GViLyW2hxZFu3DGVd5wvgLwyY3LrUMwNqm 1.11613383 BTG11.45 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 1.70909483 BTG17.53 EOS
882c6fc5f7f7d15fb2cf81d81d13d2d0aa2a446089feb0ffbc58640324d35c1f
mined 3441 days 8 hours ago
GZEETaNttRVKsYAs5HYeri9xg1MhZLzHqG 2.35875289 BTG24.19 EOS
 
GU5kvUXZ4eAic7J2Kjb7QtNij4XhcV2DUT 0.21387728 BTG2.19 EOS→
GZEETaNttRVKsYAs5HYeri9xg1MhZLzHqG 2.14477561 BTG22.00 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 2.35865289 BTG24.19 EOS
3b923fff5977c1ccbadb3059f6fed76e05cf163675d04b0ee1a4862bfd19117d
mined 3441 days 8 hours ago
GWcECNUGiN9o2aRCv6iSsPjatVYrArnmLU 110.65501528 BTG1134.81 EOS
 
GfiWiXwPzXTVzvbWib8oQfnNXCjYubaRaU 11.25894092 BTG115.46 EOS→
GWcECNUGiN9o2aRCv6iSsPjatVYrArnmLU 99.39587436 BTG1019.34 EOS→
Fee 0.00020000 BTG0.00 EOS
508204 confirmations 110.65481528 BTG1134.80 EOS
cef891c35fbedd40a3774ca7ecf9ee2ab1baf5cd83168578ebbe44c155361ea4
mined 3441 days 8 hours ago
GQGXsSEeAoTr1nPmjaVtqa4oxFHmjJchN8 0.69230562 BTG7.10 EOS
 
GcsXRPu6skMYDjCTKLFaNZq1MCfNrSsawU 0.24298805 BTG2.49 EOS→
Gf4CroM1h5R6pTJY3sTWqDaWbtcHQiqiNp 0.44921757 BTG4.61 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 0.69220562 BTG7.10 EOS
dd3bcb1cd0a13b4df17c484870a04df21e8ea3d10153e7474487cfa2ce78a525
mined 3441 days 8 hours ago
GVmj7WQ5b6cmSJ8PYm3K25mvAgAhTw2Z5U 114.78650197 BTG1177.18 EOS
 
GSA8YGQkiipTwjkyEjTss2RhGpffhXBekP 114.71631287 BTG1176.46 EOS→
GgSxrLiRg7xJcYux9uVtnPvi34DQXgaLb6 0.06980000 BTG0.72 EOS→
Fee 0.00038910 BTG0.00 EOS
508204 confirmations 114.78611287 BTG1177.17 EOS
e737afcc8338b986ba3742252f89c0d5b651faea3a62533d83fc3917b6c2eeaf
mined 3441 days 8 hours ago
GYpyNVarFyGzrEhhcSsJo13nWqTbhVMbeN 0.84000000 BTG8.61 EOS
 
GQnbaZgG4wFifCFQBxxnDSCdQ5rD8Ge1fW 0.01592780 BTG0.16 EOS→
GYpyNVarFyGzrEhhcSsJo13nWqTbhVMbeN 0.82397220 BTG8.45 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 0.83990000 BTG8.61 EOS
43580e94e6820b8226ab98bd0c0f6474f602f36742bed7022b82c4baedc99618
mined 3441 days 8 hours ago
GRnFJqcm5xCr9qwHkMkauPfrMhStKr6kv6 1.89456144 BTG19.43 EOS
 
GUtd1sQs4Kber5NtKtvw8WP7tWhTzpH785 1.89200000 BTG19.40 EOS→
GRnFJqcm5xCr9qwHkMkauPfrMhStKr6kv6 0.00246144 BTG0.03 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 1.89446144 BTG19.43 EOS
17e58687a80e6b39b3ce836720586920b74a2a3059d936b6fba946bea110e038
mined 3441 days 8 hours ago
GdMgJmKQUkguQNg5kJ3Lk6Mi1agX8nACnX 0.17279982 BTG1.77 EOS
GSn9vMpY4gr3NcdS4jzDJpQpkbfBxNi3DD 1.64022296 BTG16.82 EOS
 
GNgomWRYJqdANKYyiiRPA86Nd5F8xHJjey 1.81292278 BTG18.59 EOS→
Fee 0.00010000 BTG0.00 EOS
508204 confirmations 1.81292278 BTG18.59 EOS