Block

455309
47348cae7fcc66a14c9fa6a2668fb3bb032e07150250e90bafc43ad9a4a8b717
Transactions12
Height455309
Confirmations801499
Timestamp569 days 23 hours ago
Size (bytes)20112
Version7
Merkle Roota234088dfbfbe68b7603b3fb1666e13ee5a3355ab00bef3c5c869f2849234ca4
Nonce0
Bits1b03224a
Difficulty20911.36572112997

Transactions

5dfba23603e204e2daa0e3716b082952f50d42fad5b8d8098db0d3479a9e9ace
mined 569 days 23 hours ago
No Inputs (Newly Generated Coins)
 
Unparsed address0 MOBIC0.00 SEK0.00 SEK×
Fee 0 MOBIC0.00 SEK0.00 SEK
801499 confirmations0 MOBIC0.00 SEK0.00 SEK
b8fa420e3ca7d1ee084c9f4cb289fc5d2d41d13c73150b6274e03a0cabe0238a
mined 569 days 23 hours ago
McdEijitp4Yzp6d8LMR8nzPRVXo2E5uPqx407 MOBIC166.72 SEK1.95 SEK
 
Unparsed address0 MOBIC0.00 SEK0.00 SEK×
McdEijitp4Yzp6d8LMR8nzPRVXo2E5uPqx631 MOBIC258.48 SEK3.02 SEK→
MnmVCyU3Wy6UJKdjUrMHF5aZVY16vCEsaH416 MOBIC170.41 SEK1.99 SEK→
Fee 0 MOBIC0.00 SEK0.00 SEK
801499 confirmations1047 MOBIC428.89 SEK5.02 SEK
1d8a2c4d3130811d99ba5e7d0353a4a4b826063fa88e727b611372b38e56b250
mined 569 days 23 hours ago
MsukNPyLjn5FxDjWqbHDKJkL9CDf42N2tt20824 MOBIC8530.29 SEK99.82 SEK
 
MhQ17B7NCzSXQDCQEGQg4Kx2hsfe6fRFTZ8999.998 MOBIC3686.74 SEK43.14 SEK→
Mb9sWDdHENeP9RTBdYuoA9rSPhXPmNTUo711824.0019774 MOBIC4843.56 SEK56.68 SEK→
Fee 0.0000226 MOBIC0.00 SEK0.00 SEK
801499 confirmations20823.9999774 MOBIC8530.29 SEK99.82 SEK
38b06fccd11dfcddcfbc3f3f2ab23fe8f3a5e653ddc9e2d296e73b1e3aa72b30
mined 569 days 23 hours ago
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.85678911 MOBIC0.35 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.41269454 MOBIC0.17 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.44812525 MOBIC0.18 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.90698839 MOBIC0.37 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.43675045 MOBIC0.18 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.4569956 MOBIC0.19 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.92407012 MOBIC0.38 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ13.07657991 MOBIC5.36 SEK0.06 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ1.67163083 MOBIC0.68 SEK0.01 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.43951413 MOBIC0.18 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.44812525 MOBIC0.18 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.43675045 MOBIC0.18 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.92446986 MOBIC0.38 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.46224308 MOBIC0.19 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ12.18972255 MOBIC4.99 SEK0.06 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.91385411 MOBIC0.37 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.42195882 MOBIC0.17 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ1.6845023 MOBIC0.69 SEK0.01 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.43951413 MOBIC0.18 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.43675055 MOBIC0.18 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.92446997 MOBIC0.38 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.46224308 MOBIC0.19 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ13.10357666 MOBIC5.37 SEK0.06 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ1.69498678 MOBIC0.69 SEK0.01 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.85098847 MOBIC0.35 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ1.34187151 MOBIC0.55 SEK0.01 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.46747426 MOBIC0.19 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.46224308 MOBIC0.19 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ12.65154959 MOBIC5.18 SEK0.06 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.45202707 MOBIC0.19 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.83465336 MOBIC0.34 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ1.29984755 MOBIC0.53 SEK0.01 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.41147434 MOBIC0.17 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.8848758 MOBIC0.36 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ0.46747426 MOBIC0.19 SEK0.00 SEK
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ12.64671826 MOBIC5.18 SEK0.06 SEK
 
MiFEcaUT4bM7Z6iyw9EdQJeFEDUdUTassJ86.94380347 MOBIC35.62 SEK0.42 SEK→
Fee 0.0007 MOBIC0.00 SEK0.00 SEK
801499 confirmations86.94380347 MOBIC35.62 SEK0.42 SEK
f6c29b490612498b1d616ab9ff2821ad8f5b407275ccd3c37f7deebe2403eb1e
mined 569 days 23 hours ago
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.4392687 MOBIC0.18 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.40792855 MOBIC0.17 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.85765515 MOBIC0.35 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip1.35744856 MOBIC0.56 SEK0.01 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.90837747 MOBIC0.37 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.84232756 MOBIC0.35 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.89365606 MOBIC0.37 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip16.02392876 MOBIC6.56 SEK0.08 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.42632018 MOBIC0.17 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.84876773 MOBIC0.35 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip1.31221779 MOBIC0.54 SEK0.01 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.93828906 MOBIC0.38 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip2.23178791 MOBIC0.91 SEK0.01 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.84232756 MOBIC0.35 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.89365606 MOBIC0.37 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.42929788 MOBIC0.18 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip16.02095106 MOBIC6.56 SEK0.08 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip1.2735607 MOBIC0.52 SEK0.01 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.4392687 MOBIC0.18 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip1.34620788 MOBIC0.55 SEK0.01 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.94448759 MOBIC0.39 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip1.73328114 MOBIC0.71 SEK0.01 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.41784574 MOBIC0.17 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.9051082 MOBIC0.37 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip16.02095106 MOBIC6.56 SEK0.08 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.40949903 MOBIC0.17 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.40792855 MOBIC0.17 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip1.8050261 MOBIC0.74 SEK0.01 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip2.27202477 MOBIC0.93 SEK0.01 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip0.84232756 MOBIC0.35 SEK0.00 SEK
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip16.01247662 MOBIC6.56 SEK0.08 SEK
 
MY5kUqQwcVQzVDzPeSMqFKKrsMGcW6Qqip90.50359967 MOBIC37.07 SEK0.43 SEK→
Fee 0.00060001 MOBIC0.00 SEK0.00 SEK
801499 confirmations90.50359967 MOBIC37.07 SEK0.43 SEK
5f8ed805814d25ed88ce325951d8f43b7c8863086d484c796af68aa61387a163
mined 569 days 23 hours ago
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja6.02212359 MOBIC2.47 SEK0.03 SEK
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja20.28602773 MOBIC8.31 SEK0.10 SEK
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja15.20416692 MOBIC6.23 SEK0.07 SEK
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja2.37612103 MOBIC0.97 SEK0.01 SEK
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja12.67845908 MOBIC5.19 SEK0.06 SEK
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja12.51998121 MOBIC5.13 SEK0.06 SEK
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja6.98963236 MOBIC2.86 SEK0.03 SEK
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja5.82905625 MOBIC2.39 SEK0.03 SEK
 
Mudz5Ex3fHtMusb5ZnXn8wJcnhAQsgnMja81.90536817 MOBIC33.55 SEK0.39 SEK→
Fee 0.0002 MOBIC0.00 SEK0.00 SEK
801499 confirmations81.90536817 MOBIC33.55 SEK0.39 SEK
929b68593e0330e0bff2e26ba4ecef91d66d534ff2d56192a5cd1069a5e286e3
mined 569 days 23 hours ago
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t3.65850387 MOBIC1.50 SEK0.02 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t2.57184699 MOBIC1.05 SEK0.01 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t3.61266926 MOBIC1.48 SEK0.02 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t13.44565569 MOBIC5.51 SEK0.06 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t8.07678092 MOBIC3.31 SEK0.04 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t2.22824832 MOBIC0.91 SEK0.01 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t9.79406984 MOBIC4.01 SEK0.05 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t7.10392949 MOBIC2.91 SEK0.03 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t4.49157454 MOBIC1.84 SEK0.02 SEK
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t126.59455417 MOBIC51.86 SEK0.61 SEK
 
MjNVMuDdidT68W5i2KNPUV6dezssgagK5t181.57763309 MOBIC74.38 SEK0.87 SEK→
Fee 0.0002 MOBIC0.00 SEK0.00 SEK
801499 confirmations181.57763309 MOBIC74.38 SEK0.87 SEK
659e39443db01f4ccf4a1f625b6366bdc86eb6bcbcc80326a9509184f9835778
mined 569 days 23 hours ago
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB86.01934104 MOBIC2.47 SEK0.03 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB80.44129107 MOBIC0.18 SEK0.00 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB81.92644798 MOBIC0.79 SEK0.01 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB83.46406899 MOBIC1.42 SEK0.02 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB83.62798282 MOBIC1.49 SEK0.02 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB85.98863157 MOBIC2.45 SEK0.03 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB82.62732608 MOBIC1.08 SEK0.01 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB80.9547241 MOBIC0.39 SEK0.00 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB84.93514012 MOBIC2.02 SEK0.02 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB84.44681805 MOBIC1.82 SEK0.02 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB84.62920817 MOBIC1.90 SEK0.02 SEK
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB881.24257764 MOBIC33.28 SEK0.39 SEK
 
MfWrSH3dK1uNqZnqJFLuj6hF2LmHpJTJB8120.30325762 MOBIC49.28 SEK0.58 SEK→
Fee 0.00030001 MOBIC0.00 SEK0.00 SEK
801499 confirmations120.30325762 MOBIC49.28 SEK0.58 SEK
6b2ea42f4deae4698ba2f2cbb2d1f12b058aab0dbe06d68c5749af8a30fc1a15
mined 569 days 23 hours ago
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE53.23871594 MOBIC1.33 SEK0.02 SEK
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE54.47743293 MOBIC1.83 SEK0.02 SEK
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE56.70720591 MOBIC2.75 SEK0.03 SEK
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE57.20366471 MOBIC2.95 SEK0.03 SEK
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE50.69562869 MOBIC0.28 SEK0.00 SEK
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE55.84956802 MOBIC2.40 SEK0.03 SEK
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE58.62347732 MOBIC3.53 SEK0.04 SEK
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE55.11022787 MOBIC2.09 SEK0.02 SEK
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE5126.54509742 MOBIC51.84 SEK0.61 SEK
 
MuMzxm3CzmsvKiRBRjijV5fmM49u1QLzE5168.45081881 MOBIC69.00 SEK0.81 SEK→
Fee 0.0002 MOBIC0.00 SEK0.00 SEK
801499 confirmations168.45081881 MOBIC69.00 SEK0.81 SEK
bfeb7472c9b7b6ba891590bfa899e7343298deb622676dd584c6a31fab80bb34
mined 569 days 23 hours ago
Mt7C8vxd6ZY5nf8ker6WwA7tRa5fg3x5zw0.89267393 MOBIC0.37 SEK0.00 SEK
Mt7C8vxd6ZY5nf8ker6WwA7tRa5fg3x5zw0.51922476 MOBIC0.21 SEK0.00 SEK
Mt7C8vxd6ZY5nf8ker6WwA7tRa5fg3x5zw68.6115376 MOBIC28.11 SEK0.33 SEK
Mt7C8vxd6ZY5nf8ker6WwA7tRa5fg3x5zw4.98240795 MOBIC2.04 SEK0.02 SEK
Mt7C8vxd6ZY5nf8ker6WwA7tRa5fg3x5zw3.5036479 MOBIC1.44 SEK0.02 SEK
Mt7C8vxd6ZY5nf8ker6WwA7tRa5fg3x5zw2.65074642 MOBIC1.09 SEK0.01 SEK
 
Mt7C8vxd6ZY5nf8ker6WwA7tRa5fg3x5zw81.16003856 MOBIC33.25 SEK0.39 SEK→
Fee 0.0002 MOBIC0.00 SEK0.00 SEK
801499 confirmations81.16003856 MOBIC33.25 SEK0.39 SEK
d37423391fa6e87479a2aeb131a3f62fe6ed2bb6c2c66e86eb77915470fd0d0e
mined 569 days 23 hours ago
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e1.90540151 MOBIC0.78 SEK0.01 SEK
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e2.98169789 MOBIC1.22 SEK0.01 SEK
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e4.67302114 MOBIC1.91 SEK0.02 SEK
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e3.04425977 MOBIC1.25 SEK0.01 SEK
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e1.13430238 MOBIC0.46 SEK0.01 SEK
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e3.85032413 MOBIC1.58 SEK0.02 SEK
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e4.7247571 MOBIC1.94 SEK0.02 SEK
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e3.30282335 MOBIC1.35 SEK0.02 SEK
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e73.9444379 MOBIC30.29 SEK0.35 SEK
 
Mnx4TXnbhD962jNaqSY9bywGb2sycF4i6e99.56082517 MOBIC40.78 SEK0.48 SEK→
Fee 0.0002 MOBIC0.00 SEK0.00 SEK
801499 confirmations99.56082517 MOBIC40.78 SEK0.48 SEK
eb43e8d65423e0975c39101aa56fccb07d90b407d635cbaf3bb75ec4c8e37cf4
mined 569 days 23 hours ago
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ2.68262521 MOBIC1.10 SEK0.01 SEK
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ0.68479575 MOBIC0.28 SEK0.00 SEK
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ3.217001 MOBIC1.32 SEK0.02 SEK
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ3.2489916 MOBIC1.33 SEK0.02 SEK
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ2.4292426 MOBIC1.00 SEK0.01 SEK
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ4.70430385 MOBIC1.93 SEK0.02 SEK
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ3.95534632 MOBIC1.62 SEK0.02 SEK
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ64.86577171 MOBIC26.57 SEK0.31 SEK
 
Mfww6b55jb2aQRgbuvUtE2hUD4MVj9TdSQ85.78787804 MOBIC35.14 SEK0.41 SEK→
Fee 0.0002 MOBIC0.00 SEK0.00 SEK
801499 confirmations85.78787804 MOBIC35.14 SEK0.41 SEK