Block

380521
000000000000000007def5f484b6791300b7eabf5d230982d19e95f141a0b7ca
Transactions2293
Height380521
Confirmations578372
Timestamp3920 days 19 hours ago
Size (bytes)994132
Version3
Merkle Rootb7e2c54e68c81cf14ab07edaea43506a7ae7190cf997b3455fc79f5ec043f172
Nonce2695561233
Bits18120f14
Difficulty60883825480.09828

Transactions

307c43ca71b2ae7801be074936554b9bd994894b2fd2d36958751da21c4a90b7
mined 3920 days 19 hours ago
1NteQx6E4mnRZMezpUMcScJvmfYzMTYXtD←1.41274960 BTC14925.53 VEF9086.13 VEF
16Y6B4tPD8ymtveBYbpiMmUgrFJUXt82zn←0.18378830 BTC1941.70 VEF1182.04 VEF
1MvNbhaUb56nVzE7NotFC1dPFVH4hPYZvV←1.12943946 BTC11932.39 VEF7264.01 VEF
 
1EsY6Kb575uQqmGBrFDA2iUajvmLAbxBCB2.70851000 BTC28615.08 VEF17419.84 VEF→
16z6w38PGXUgkRGs2qAEtRJn8LdKvNkTsZ0.01706736 BTC180.31 VEF109.77 VEF→
Fee 0.00040000 BTC4.23 VEF2.57 VEF (76.63 sat/vByte)
578372 confirmations2.72557736 BTC28795.39 VEF17529.61 VEF
bad06627e23c7ac3607afd286a340a724355b59ad374c30f0cb637b5d1527abb
mined 3920 days 19 hours ago
1FjBY9mvLci9dKucchFQGohwLv8CbuJ3hB←0.55624464 BTC5876.66 VEF3577.50 VEF
 
1AyUkbsLijGzV5JAoKZLEtXNRwZZ9cVHbo0.55610000 BTC5875.13 VEF3576.57 VEF→
Fee 0.00014464 BTC1.53 VEF0.93 VEF (75.33 sat/vByte)
578372 confirmations0.55610000 BTC5875.13 VEF3576.57 VEF
c043aec83d89174de27379430aab7e2815903a0891776b1d0cde06df5b1aa230
mined 3920 days 19 hours ago
18xBt4vSWyRzHXHG6gPMTdZr4uQNssb3Gr←0.00364020 BTC38.46 VEF23.41 VEF
1GcVnXLV7uX9TafUJjvrYvwmDBuK6mkuaR←0.00085056 BTC8.99 VEF5.47 VEF
1FDrnQ4tabgMvUB5CGGhuB85MxrSkwxuKT←0.02245000 BTC237.18 VEF144.39 VEF
1Dpc8W26rvGfX5fY2grLigjsSxXRae9fxa←0.00103000 BTC10.88 VEF6.62 VEF
 
18Y4EvLAYiCuD3CcDFneU2gJXNXXP1BFnq0.01000267 BTC105.68 VEF64.33 VEF→
1AfdR7h3qBCJ2VKiux2P8Zm8FFgc4GHd1N0.01746809 BTC184.55 VEF112.35 VEF→
Fee 0.00050000 BTC5.28 VEF3.22 VEF (75.08 sat/vByte)
578372 confirmations0.02747076 BTC290.23 VEF176.68 VEF
a776275d554d774c7d3ad5ae833c10a5080119673a0353926a746876826f5fad
mined 3920 days 19 hours ago
1F7jNpCTxEkYmyDDzc6cKmXEyf3iX1EQbt←2.87990000 BTC30425.79 VEF18522.13 VEF
1F7jNpCTxEkYmyDDzc6cKmXEyf3iX1EQbt←0.47990000 BTC5070.09 VEF3086.49 VEF
1F7jNpCTxEkYmyDDzc6cKmXEyf3iX1EQbt←2.49990000 BTC26411.14 VEF16078.16 VEF
1F7jNpCTxEkYmyDDzc6cKmXEyf3iX1EQbt←0.73990000 BTC7816.95 VEF4758.68 VEF
1F7jNpCTxEkYmyDDzc6cKmXEyf3iX1EQbt←1.21990000 BTC12888.10 VEF7845.81 VEF
1F7jNpCTxEkYmyDDzc6cKmXEyf3iX1EQbt←0.73990000 BTC7816.95 VEF4758.68 VEF
1F7jNpCTxEkYmyDDzc6cKmXEyf3iX1EQbt←2.05990000 BTC21762.59 VEF13248.29 VEF
 
1N1q4yURotZ5kf3skvGkkkyt5DDuH6kT3Y10.00000000 BTC105648.79 VEF64315.20 VEF→
1F7jNpCTxEkYmyDDzc6cKmXEyf3iX1EQbt0.61830000 BTC6532.26 VEF3976.61 VEF→
Fee 0.00100000 BTC10.56 VEF6.43 VEF (74.91 sat/vByte)
578372 confirmations10.61830000 BTC112181.05 VEF68291.81 VEF
353508226da16c159e818b634404e3b4b275432d22d365934981dc2babf15d1f
mined 3920 days 19 hours ago
1261rCFUepTUDkxEDNNKiZZPjvkVEugP32←0.10733648 BTC1134.00 VEF690.34 VEF
1FHEfPE6dDSKYV4CJBTAQ9c9Kby4Lbyn7S←0.12444841 BTC1314.78 VEF800.39 VEF
1F6r5kRZ4CutFDW3vgSqhVRWYoL9Y18HzK←0.20766950 BTC2194.00 VEF1335.63 VEF
13HkxiigXQ8jk2GkDepY71fSg7zH2E2LaB←0.36199952 BTC3824.48 VEF2328.21 VEF
 
18Hc72oSTiV7AamHZRoBKXGy6NMqaLFzRk0.61230000 BTC6468.88 VEF3938.02 VEF→
17VvPeFdHF72hbxR7grTMmc83EiesV6dWq0.18865391 BTC1993.11 VEF1213.33 VEF→
Fee 0.00050000 BTC5.28 VEF3.22 VEF (74.74 sat/vByte)
578372 confirmations0.80095391 BTC8461.98 VEF5151.35 VEF
998dab8b28af9f6d7b20e85484fdd408390efddb11973c9f1368e51e221dcd48
mined 3920 days 19 hours ago
1Aij32FTjibxozke7HpWX3VogpV1Zs9938←0.01067533 BTC112.78 VEF68.66 VEF
1F9N5xZx5DnA5ChthiStRtkAP5Cxf7oays←0.01366245 BTC144.34 VEF87.87 VEF
 
1NwQJ2fZi6SXigwqMV2Jw4AEsiaYadXw2m0.01000000 BTC105.65 VEF64.32 VEF→
1DXaP6iDaGvmMtxiwCcVwJjj5YHVEQFJAx0.01406143 BTC148.56 VEF90.44 VEF→
Fee 0.00027635 BTC2.92 VEF1.78 VEF (74.29 sat/vByte)
578372 confirmations0.02406143 BTC254.21 VEF154.75 VEF
f55bad82b9fd9c7a9e09f71b4a14b8d988c3a95770db4fadb8a33847b99b528d
mined 3920 days 19 hours ago
15QfL7LYYe4YJBxozgxKeC2EcsUHxFUJWa←0.03565952 BTC376.74 VEF229.34 VEF
19eiLp8gPhfRNBikQASKCbJTo9YRGMdnmE←0.00204494 BTC21.60 VEF13.15 VEF
 
1KKu4UbrjP1TU4uzjfrcUD7RzJPuxgBLau0.03565952 BTC376.74 VEF229.34 VEF→
1ATEyNPXpAppU1Kq6dxB68Z3HeEyfX329Q0.00174494 BTC18.44 VEF11.22 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (74.26 sat/vByte)
578372 confirmations0.03740446 BTC395.17 VEF240.57 VEF
7d49f227996b036d503c779f94458571b3aa8e3dd98eae6581f4a31452ba1164
mined 3920 days 19 hours ago
1CoEm9Nbq35dhTYbNUnXqFn9E2ifWjX7T8←0.00052378 BTC5.53 VEF3.37 VEF
1E9ZRVkAkadgcXkpktWDBCBZ3W8Gg1H81P←0.00174156 BTC18.40 VEF11.20 VEF
 
17EkVHnBXTxcZGjDy7E9Fm5nSZhrowKs5G0.00052378 BTC5.53 VEF3.37 VEF→
17YGVejFbMAkLMSGei6SuqeLDqLuXySysC0.00144156 BTC15.23 VEF9.27 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (74.26 sat/vByte)
578372 confirmations0.00196534 BTC20.76 VEF12.64 VEF
37cfac41d62a147c589251a775f9df9a0d074eeb1f44c9c19278f10a6d72988e
mined 3920 days 19 hours ago
1DDhvdHVyetZjL1YdfLSP13PBkbezSapP5←0.01025000 BTC108.29 VEF65.92 VEF
12H4pvC8dMwbSzS6GKqP7PQ4CGkHNUGg8E←0.00174156 BTC18.40 VEF11.20 VEF
 
1CxQA5vvBrtaDCeXpprAAoW4ayY6kGYRuK0.01025000 BTC108.29 VEF65.92 VEF→
1AAYTHxiHmnkLA2hcFUcpRt1Wini3aogS10.00144156 BTC15.23 VEF9.27 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (74.07 sat/vByte)
578372 confirmations0.01169156 BTC123.52 VEF75.19 VEF
5b066fa251f85998c72d39b1d4907f30cf801bb3ea7e9cbe5880e8cf3f04751e
mined 3920 days 19 hours ago
1M8yawc63mH6ukE7q2dZUPPEtve2hRjFEw←0.24182600 BTC2554.86 VEF1555.31 VEF
1QBjhKUbcMJZbjrF5Kw1LgF2os2ipfyvxq←0.00144107 BTC15.22 VEF9.27 VEF
 
1ySAEJaZDDZL2E6mUDffhKL93DptCCsNY0.24182600 BTC2554.86 VEF1555.31 VEF→
1NvHc57pCW7XDEHVJzC8uHkNPAyFE9v5rq0.00114107 BTC12.06 VEF7.34 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (74.07 sat/vByte)
578372 confirmations0.24296707 BTC2566.92 VEF1562.65 VEF
0ca79f1e987ccb5559d3f67396b3917e4c5f0d4aaeb19d1e2754950fc401e07c
mined 3920 days 19 hours ago
1FyqLq2uDxxjAFoBVwuP59V7mQNnEUysNW←0.00029680 BTC3.14 VEF1.91 VEF
1K2AVod2dm7e7DhGDingHVrMa9jmCKnxAm←0.00240190 BTC25.38 VEF15.45 VEF
 
1B7KLEab6P9dit1CzDwPcqX3wT7ioEeoqp0.00029680 BTC3.14 VEF1.91 VEF×
1CuQGVKcwnHvS9UCo8CUmDrAmMn5HQP5wh0.00210190 BTC22.21 VEF13.52 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (74.07 sat/vByte)
578372 confirmations0.00239870 BTC25.34 VEF15.43 VEF
12a1944098eda3d9e25eca2b5055b6308a862f6de6b8b31b053e4625b704865e
mined 3920 days 19 hours ago
12oLCgjSeTdzYKjkfGRQdxQRnXk5TyEix4←0.00022048 BTC2.33 VEF1.42 VEF
15BJRT9G14AjFVAKSDiNm9ehN57yhaF4Gm←0.00234250 BTC24.75 VEF15.07 VEF
 
1Cp5yGtqxEuebFj1Wy6RUkmkN5LHGBKvEG0.00014833 BTC1.57 VEF0.95 VEF→
1JDbQ8iteSXe4ArEvPCzKuzENwHtfr8ANJ0.00007215 BTC0.76 VEF0.46 VEF→
1GHBCd3ydh7DZP783QQbNspp3bPycrhtMS0.00204250 BTC21.58 VEF13.14 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (74.07 sat/vByte)
578372 confirmations0.00226298 BTC23.91 VEF14.55 VEF
58ce7a73ae9c0d19c478c3d1cb8153bf392e2d8b66944d7a194bfab24164be1c
mined 3920 days 19 hours ago
1Cp5yGtqxEuebFj1Wy6RUkmkN5LHGBKvEG←0.00014833 BTC1.57 VEF0.95 VEF
13nUEg7mtaxrf1Z9QErrcT6fAp2SxAQNUP←0.00234241 BTC24.75 VEF15.07 VEF
 
1DQ3k5wDALU9y425yL78dWtoeD3sbV6aHh0.00014833 BTC1.57 VEF0.95 VEF→
19Wi9JA9NP23wskRtAFZU9o7qAe85oESZV0.00204241 BTC21.58 VEF13.14 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (80.43 sat/vByte)
578372 confirmations0.00219074 BTC23.14 VEF14.09 VEF
bd123a5708b6ec6da640d1be7cc6eaca96c48bba7c97663ea78c264071b79b6c
mined 3920 days 19 hours ago
1Q9EkoxKaVHMH1y6V5b3PWfwEHjHRUJgry←0.00146905 BTC15.52 VEF9.45 VEF
15dZ8tV59wepNkpHjhwYYRtKvbb54jqhqX←0.00114154 BTC12.06 VEF7.34 VEF
 
1B8uWPxsyqW8hPwpGL3n1a8t7FTPvvkocv0.00146905 BTC15.52 VEF9.45 VEF→
1Kp9EuVeKqMTQkEd9BU7oweKW9URzG56xS0.00084154 BTC8.89 VEF5.41 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (74.07 sat/vByte)
578372 confirmations0.00231059 BTC24.41 VEF14.86 VEF
23aae4228c41ab134d7e098846d93b9d9613000296800000186911da0ac83865
mined 3920 days 19 hours ago
1DAh1WnsQySZUAm52CYDERGrBa3XhZ7Zke←0.14540968 BTC1536.24 VEF935.21 VEF
1AmyV7vd5TVYkFRHzoVNV1kmDzz3zvnyh4←0.00204153 BTC21.57 VEF13.13 VEF
 
1dfkaaRmZSDAbieQVcNYAc9xSn5HnmDjV0.14532842 BTC1535.38 VEF934.68 VEF→
1NUfxYQsMjoe8A9oXPhve11L62XWyT1W6C0.00008126 BTC0.86 VEF0.52 VEF→
1Q8NyV4eA2NCoXeghfH8BeHuiShcb7ZYz70.00174153 BTC18.40 VEF11.20 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (73.89 sat/vByte)
578372 confirmations0.14715121 BTC1554.63 VEF946.41 VEF
389c297dba73592068330af5cf8037b3772838e00897aabf7c34f64efc34511d
mined 3920 days 19 hours ago
1PPc5pHqfFbh8rZKReFh6jSDQY5uj1QWuS←1.46589649 BTC15487.02 VEF9427.94 VEF
14yU7D8kLLLHNJxDqHyjYH2cohY8EySGYy←0.00144146 BTC15.23 VEF9.27 VEF
 
15b8DJiZKNKo4Q6md6QDvg8MAKvcrZQLbe1.45601326 BTC15382.60 VEF9364.38 VEF→
15z8d4JeCHTe9tg7TgXDoSE92EMoK85H990.00988323 BTC104.42 VEF63.56 VEF→
14UcK5SpkaDiiTdmnBYRKTgFtNQDyPLJ5S0.00114146 BTC12.06 VEF7.34 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (73.89 sat/vByte)
578372 confirmations1.46703795 BTC15499.08 VEF9435.28 VEF
2450bc61ee75e4ab1adda5227085627887c8d2a1412a9ca90913ebd683c3e4d5
mined 3920 days 19 hours ago
17AU7SkgQcVbh5zmhLtVQEBYJfrA6LMt5X←0.08291566 BTC875.99 VEF533.27 VEF
19oNCLkiuGg2qF4c3wB6cGdCdYS1gUfJep←0.00174156 BTC18.40 VEF11.20 VEF
 
1D9Lbbvt3Zk5vYPwvgHVWU7wxzrMVeTmZ30.00350000 BTC36.98 VEF22.51 VEF→
1BoTueWMuN5ktkQ2ebuWY3meH5uTrg7iGs0.07941566 BTC839.02 VEF510.76 VEF→
1Do6QcSs3eJbuWGASqkksEJBgEtFm2if7K0.00144156 BTC15.23 VEF9.27 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (73.89 sat/vByte)
578372 confirmations0.08435722 BTC891.22 VEF542.55 VEF
9d458c9fe8cf1ce27bcfacb8cedb6db16a12cd30a5410a979dac362f3533b221
mined 3920 days 19 hours ago
1ESS6tSeqYSaFuTNwXcqPhZADCzXtX7Cst←1.16124262 BTC12268.39 VEF7468.56 VEF
1NLBMabSnLDmVL7dHH1DFC4A2yBWQ2NG92←0.00174156 BTC18.40 VEF11.20 VEF
 
19r3MKVkNY1PzgXp9rVoJSwyH5h98QyY5K1.00000000 BTC10564.88 VEF6431.52 VEF→
15XWpuJDNkS2PnzuCeZzPvbFmQGehdtBW90.16124262 BTC1703.51 VEF1037.04 VEF→
19WawiqRdq6g8hWA6Lb6DXcem9s3F2HoUw0.00144156 BTC15.23 VEF9.27 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (73.89 sat/vByte)
578372 confirmations1.16268418 BTC12283.62 VEF7477.83 VEF
ef08ee4fe9e66712c1f976ae507d94517ef382976eba4a209a03f5039e2354d2
mined 3920 days 19 hours ago
19r3MKVkNY1PzgXp9rVoJSwyH5h98QyY5K←1.00000000 BTC10564.88 VEF6431.52 VEF
1L5caYRUcukQHsYU3mMSBCvhWin4VWwj7q←0.00174156 BTC18.40 VEF11.20 VEF
 
1M7A9D6ZpfYJBoK7q9TXHmYvyMPh5Y51Bh1.00000000 BTC10564.88 VEF6431.52 VEF→
1CvzD7BXA6jJqyosG43GJG1Jsb5hUWD8b90.00144156 BTC15.23 VEF9.27 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (80.21 sat/vByte)
578372 confirmations1.00144156 BTC10580.11 VEF6440.79 VEF
7b8a09537b6c64957ed7d69202aa35ada809b7a71bd147d4d6a4910e0d7dd7a7
mined 3920 days 19 hours ago
1A1Lvz5N2hhbHH6LQEyFAaUz7cPnMW12RH←1.13965454 BTC12040.31 VEF7329.71 VEF
1BXoCgNqsxrCb9Mq2maVnYqBgVD6EH5s7J←0.00144156 BTC15.23 VEF9.27 VEF
 
1u22V5ZzS4HMUC8wjDKrUEbhLcBbo834v0.28233911 BTC2982.88 VEF1815.87 VEF→
1GvyW6GdhiwNaefAwNBkWhr7VGndYCFTbh0.85731543 BTC9057.43 VEF5513.84 VEF→
1HRQf4sW3EUSxeqFni56adtRcTPGH3ewKo0.00114156 BTC12.06 VEF7.34 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (73.89 sat/vByte)
578372 confirmations1.14079610 BTC12052.37 VEF7337.05 VEF
591457fdb1e2a5a9225f8717595f80ada1ce1427467033b70e31bdeea076c4dd
mined 3920 days 19 hours ago
1u22V5ZzS4HMUC8wjDKrUEbhLcBbo834v←0.28233911 BTC2982.88 VEF1815.87 VEF
1C2NpvkMykM7oHSkWEoxiUSGDy9H1HQpyD←0.00144156 BTC15.23 VEF9.27 VEF
 
1FsEN4mWfr9ZWNoPqiCv4vABQadBX9MTHz0.28233911 BTC2982.88 VEF1815.87 VEF→
1GHhREmZ8zEvCzuAZ8oPKvnhCnrCwLXLDU0.00114156 BTC12.06 VEF7.34 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (80.21 sat/vByte)
578372 confirmations0.28348067 BTC2994.94 VEF1823.21 VEF
deb832791627d76cb90f16bb5c707ada2778bdec7320855dc162b24c2687a11d
mined 3920 days 19 hours ago
1F91Xa9Z5fS4Dd1z1FWVKxDStTvx5s3AJi←0.93282549 BTC9855.19 VEF5999.49 VEF
1F8erXvtKCvFSriMqMBWqHHzHroPhW5g29←0.00114156 BTC12.06 VEF7.34 VEF
 
1PSK8sG9apWrBghv7NT3ucLt2TED73XEVu0.40942700 BTC4325.55 VEF2633.24 VEF→
1DRtGseuBYrTHhB7iVyTpXaTiLSd5zWe4C0.52339849 BTC5529.64 VEF3366.25 VEF→
19F9ctpo9kNRgnuZXZSFR3patcb91s1pAA0.00084156 BTC8.89 VEF5.41 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (73.89 sat/vByte)
578372 confirmations0.93366705 BTC9864.08 VEF6004.90 VEF
31ab709d1405b6546da20203b1ce99d375a3e182d04a492864c31788450430c2
mined 3920 days 19 hours ago
1PSK8sG9apWrBghv7NT3ucLt2TED73XEVu←0.40942700 BTC4325.55 VEF2633.24 VEF
13jGdvjvNGLpDfGnkrDsPHBJRZdMaiMvfr←0.00114115 BTC12.06 VEF7.34 VEF
 
1Fnn6sbdMv6H9vgeNhPrhwqLbz36oH68LP0.40942700 BTC4325.55 VEF2633.24 VEF→
1D1sfYieYza3BbjuttFapiiyt4NRufJS8r0.00084115 BTC8.89 VEF5.41 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (80.43 sat/vByte)
578372 confirmations0.41026815 BTC4334.43 VEF2638.65 VEF
d9a28de6a3fc1173105214db329bcfa4a6a0786c22ac3e513ff58ac8aad26342
mined 3920 days 19 hours ago
184hdANeJZa1jFAZ51491aU7cf2rsHkUe8←0.04790000 BTC506.06 VEF308.07 VEF
1Jieg9ADdcV4ovJXP6k6TkpXvZWQqsmNon←0.00144156 BTC15.23 VEF9.27 VEF
 
17UscH8k7ws32Dgu23Akz6bDZV7Q3Mmbqq0.00270000 BTC28.53 VEF17.37 VEF→
1JexrVk159nLMipgZrMSRca3cSgDCyj9rv0.04520000 BTC477.53 VEF290.70 VEF→
1ExNyDYZZRH7p5UsZz2XH8eY8AehfM3C1G0.00114156 BTC12.06 VEF7.34 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (73.89 sat/vByte)
578372 confirmations0.04904156 BTC518.12 VEF315.41 VEF
7eabaea8300799ae6bc1a24b58ad4e9d1adf6093f8ba58912a758e32328d9fe3
mined 3920 days 19 hours ago
15WKHDzpkCdaEyyibfSoBtU25Zf1tS47sg←1.02230000 BTC10800.48 VEF6574.94 VEF
1H93vzTrckJKefTwiP7SZG7nTmCZSbEybs←0.00234104 BTC24.73 VEF15.06 VEF
 
1GAj88QBMSJvBuvN9CURZsTqaqP3S7yTDQ1.00880162 BTC10657.87 VEF6488.13 VEF→
1JTRdwqF4cDwpRK5jP2Q1UJEx31FfJzrQk0.01349838 BTC142.61 VEF86.82 VEF→
1Gc7CDVnxB9kgfqby1Nk4huQ5E6WTsPXse0.00204104 BTC21.56 VEF13.13 VEF→
Fee 0.00030000 BTC3.17 VEF1.93 VEF (73.89 sat/vByte)
578372 confirmations1.02434104 BTC10822.04 VEF6588.07 VEF