Block

2375782
86d4002d4e02655e78155be2ec5fd33e3b9d75a1a65936e984fe8486ff2f5b4c
Transactions 138
Height 2375782
Confirmations 537905
Timestamp 929 days 13 hours ago
Size (bytes) 138022
Version 536870912
Merkle Root 35cf970830dc056cb93d3d7c4203793ac170b6e6f48da2dbbc237191ad2d120e
Nonce 2271861305
Bits 1a00d6c7
Difficulty 19996996.35450958

Transactions

476cc88f7f07e695e3b980a017bbaae87da2f6d75e62d36c613259aa96590bb9
mined 929 days 13 hours ago
No Inputs (Newly Generated Coins)
 
LTCPodha2LAxSyBGsGfkWcmKDEB8cWrqLU 12.50875460 LTC22370.66 CZK23427.40 CZK→
OP_RETURN aa21a9ed287809809360c614814ab4d820995c57d84b6bd712186b50d8ce0a9c71739949 0 LTC0.00 CZK0.00 CZK×
Fee 0 LTC0.00 CZK0.00 CZK
537905 confirmations 12.50875460 LTC22370.66 CZK23427.40 CZK
1a15a24737db654c1d05dd3fe43c306714d62595fa0a72fffce3302864954895
mined 929 days 13 hours ago
LhHizvNDW5zxPdRA68b1bfVFAj9bgm53HB 1.97252000 LTC3527.66 CZK3694.29 CZK
LhHizvNDW5zxPdRA68b1bfVFAj9bgm53HB 1.93415000 LTC3459.03 CZK3622.43 CZK
 
LTdFpTpFyxRiYoTNzzycLdNUms99nzU73t 2.10000000 LTC3755.64 CZK3933.05 CZK→
LhHizvNDW5zxPdRA68b1bfVFAj9bgm53HB 1.80480000 LTC3227.70 CZK3380.17 CZK→
Fee 0.00187000 LTC3.34 CZK3.50 CZK
537905 confirmations 3.90480000 LTC6983.34 CZK7313.22 CZK
9a0c04aaf536222d81ad480d9a6a458bd88f32f6d043e153895ee6fadacd88ab
mined 929 days 13 hours ago
MSKb3g4JsSVyzRMcorKudvUa6q9HZCryM9 0.26080007 LTC466.41 CZK488.45 CZK
MH4zmGCRVgDBhmoKTMWXxSx2rhrPyFvXwF 2.05678470 LTC3678.35 CZK3852.11 CZK
 
LL3KNj5mpyjuDYoYRD2wBkTmAQv42GBSo6 0.78386697 LTC1401.87 CZK1468.09 CZK→
MSKb3g4JsSVyzRMcorKudvUa6q9HZCryM9 1.53291780 LTC2741.47 CZK2870.97 CZK→
Fee 0.00080000 LTC1.43 CZK1.50 CZK
537905 confirmations 2.31678477 LTC4143.34 CZK4339.06 CZK
4a567c8f399236904798d3679297f822479d6b6d3c8ecd4114988c7c7206c552
mined 929 days 13 hours ago
ltc1qcz8zku3kzdvgfn7j0m72kj9e3f22hgn5erlzjy 0.00564561 LTC10.10 CZK10.57 CZK
ltc1q9xar2t6l3qgtq6rsarva7phlz3jfdnc9jsc9jv 0.27000000 LTC482.87 CZK505.68 CZK
 
ltc1qksq5d3r6hmxr7hss09jwjvu77muhdvuxmgx5cu 0.00543560 LTC9.72 CZK10.18 CZK→
ltc1qlye4cxlxzw4gd6z3pkd5s4kjx6p8gpvc4ukcw0 0.27000000 LTC482.87 CZK505.68 CZK→
Fee 0.00021001 LTC0.38 CZK0.39 CZK
537905 confirmations 0.27543560 LTC492.59 CZK515.86 CZK
7e16880edf9c25e0db5b15fa0826f459aea00dce03f70d955abd38e4f1c35f39
mined 929 days 13 hours ago
MDpkvdNjvYf9DNmHYaMWoUQjPkvAdQNbFe 17.75483857 LTC31752.76 CZK33252.68 CZK
 
M8kmTL1EXnbSVSbfsoBZctzPboBLYV94J7 12.75567257 LTC22812.25 CZK23889.84 CZK→
MC572MphX6sFe6cD7Ru67ki93LHZLzS3Hy 4.99900000 LTC8940.21 CZK9362.53 CZK→
Fee 0.00016600 LTC0.30 CZK0.31 CZK
537905 confirmations 17.75467257 LTC31752.46 CZK33252.37 CZK
0152f1cb4825e326c04dd8dc65145d152c78ab8092d1ed61edd25b5bbdd5369b
mined 929 days 13 hours ago
ltc1qx7lfn3s7fa5tq35x859k42qstm0gyr9cp2s5du 2.38671500 LTC4268.40 CZK4470.03 CZK
 
MBbskZJnbFThgVaTWQC5ucetm9JGHaFJu3 2.32202951 LTC4152.72 CZK4348.88 CZK→
ltc1qmscg4m8ws4mjcx0pxpvmgjm9a4g04p95e2nexa 0.06457249 LTC115.48 CZK120.94 CZK×
Fee 0.00011300 LTC0.20 CZK0.21 CZK
537905 confirmations 2.38660200 LTC4268.20 CZK4469.82 CZK
5a11f294f3157d63bea6966fa81e770d0d07c06f80c6c67a0b8e2fb88a29cb56
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 4.97344078 LTC8894.50 CZK9314.66 CZK
 
MU5AoaQGuwYKQbAged9s7QzWCtjPYts5XW 0.00647082 LTC11.57 CZK12.12 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 4.96688756 LTC8882.78 CZK9302.38 CZK→
Fee 0.00008240 LTC0.15 CZK0.15 CZK
537905 confirmations 4.97335838 LTC8894.35 CZK9314.50 CZK
c80fff92391592bec47fa8fb5bdd78692d9d5eedd5a1f2a10132dc7b259f9323
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 1.21483695 LTC2172.61 CZK2275.24 CZK
 
LPPeq5KuRWb88qtLcihRFAtcuyvjLjVApT 0.00653552 LTC11.69 CZK12.24 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 1.20821823 LTC2160.78 CZK2262.85 CZK→
Fee 0.00008320 LTC0.15 CZK0.16 CZK
537905 confirmations 1.21475375 LTC2172.47 CZK2275.09 CZK
3932623e99812dd808afd4893fe35aa036e39ed7a63436dc786ce6c7688a2cec
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 1.20821823 LTC2160.78 CZK2262.85 CZK
 
ltc1qwp3xc4ety8pxyl73zl9qc9sxugufgn26qnmkzl 0.01002977 LTC17.94 CZK18.78 CZK→
ltc1qrn6c995m7gyn9jfgzl08ut2xmxgfwns9j3mmwdh0grfz9emqgh9sutqdha 0.00010030 LTC0.18 CZK0.19 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 1.19798896 LTC2142.48 CZK2243.69 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 1.20811903 LTC2160.60 CZK2262.66 CZK
93092be4777cbe973e6c95b2287b5e167a3d3470dfe2438a1ad85ddcf6b58a4b
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 1.19798896 LTC2142.48 CZK2243.69 CZK
 
ltc1qdvecdu7esnpf0kz98amf4sk4lmk0p365y2gy5t 0.00711790 LTC12.73 CZK13.33 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 1.19078906 LTC2129.61 CZK2230.21 CZK→
Fee 0.00008200 LTC0.15 CZK0.15 CZK
537905 confirmations 1.19790696 LTC2142.34 CZK2243.54 CZK
bdf3c60b5a27a5a94489649c18c08c9fc32d341db2307ea6ac83b137b539f361
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 3.55500744 LTC6357.78 CZK6658.10 CZK
 
LdRPzeJZSMpmD1H6nBZsmYVKLM9qcgUd3J 0.01550408 LTC27.73 CZK29.04 CZK→
ltc1qhwlrnxqv668s8dx5enrd97v3mjnudxjr8axvr76c79v74gvx9j2qkhpn5q 0.00015504 LTC0.28 CZK0.29 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 3.53924792 LTC6329.59 CZK6628.59 CZK→
Fee 0.00010040 LTC0.18 CZK0.19 CZK
537905 confirmations 3.55490704 LTC6357.60 CZK6657.91 CZK
0999bf1f86dcec8c3c06a66a91d62bb71e4a073d9f79fe4b37697cd5b71e6326
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 3.53924792 LTC6329.59 CZK6628.59 CZK
 
ltc1q3fkf0tfrrnqpkr5h0v086962zdxuvjma3kgcr0 0.00920150 LTC16.46 CZK17.23 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 3.52996442 LTC6312.99 CZK6611.20 CZK→
Fee 0.00008200 LTC0.15 CZK0.15 CZK
537905 confirmations 3.53916592 LTC6329.44 CZK6628.43 CZK
28dd89fba37db59ecb4450e4f7a8a4be145de68d7c81dfccbc30792ad6864018
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 2.52456628 LTC4514.93 CZK4728.21 CZK
 
ltc1qr4amn334ypfvc0ryc44jnweyqltpskd3t4rggu 0.01481817 LTC26.50 CZK27.75 CZK→
ltc1qn70h9sgv5tdwua7smkmz3pnzqf9quum2pucz89qfdafuwnprs8pqru8x7w 0.00014818 LTC0.27 CZK0.28 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 2.50950073 LTC4487.99 CZK4699.99 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 2.52446708 LTC4514.76 CZK4728.02 CZK
00d7ead3bd567dccbaedf484821bce9e092ea7f4cc0f6194022b7b205bd15e3e
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 3.52996442 LTC6312.99 CZK6611.20 CZK
 
ltc1qhjsm2vsm4qz6hlu49pedjznrek2ve4drcsqmk4 0.03235408 LTC57.86 CZK60.60 CZK→
ltc1q7342g3l47jzsxg39tntg589jmw4265epz8dxyje2fkjlke4v9rxs2ktrxw 0.00032354 LTC0.58 CZK0.61 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 3.49718760 LTC6254.37 CZK6549.81 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 3.52986522 LTC6312.81 CZK6611.01 CZK
3c97940602805fed88dfd35debe889af7469c04e31a1ba2341f88ff213c139a5
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 0.35931630 LTC642.60 CZK672.96 CZK
 
ltc1q6q7m20df3qz77ev8dxkzhxu00th0hxs4sdcaxv 0.01828653 LTC32.70 CZK34.25 CZK→
ltc1qluft23zhtnwmtgnxgzn4lk3k9v6a52v6g4uxctd4xsf5c2psekns5rxv72 0.00018287 LTC0.33 CZK0.34 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 0.34074770 LTC609.39 CZK638.18 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 0.35921710 LTC642.42 CZK672.77 CZK
2eeabb18660456bd9638c64cbcddd6e64eaca9c8b66d1e58cbb54223c66f427a
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 0.34074770 LTC609.39 CZK638.18 CZK
 
ltc1q3gl3ta9fh0qpjta85es9erytvrpl3rsjap6mhh 0.02968811 LTC53.09 CZK55.60 CZK→
ltc1qqvh39lj6cdt9arn4ta5l6rq99tpc2qvpjlmcp6m95lvsyw7w5kuqh37amm 0.00029688 LTC0.53 CZK0.56 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 0.31066351 LTC555.59 CZK581.84 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 0.34064850 LTC609.22 CZK637.99 CZK
c7b4d0c88f153c7c5f1231804b0cd63a6e50a7ae2cab49a7d69ede11109cf27c
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 4.96688756 LTC8882.78 CZK9302.38 CZK
 
ltc1qrm0pd2f6q8gqzemqyrrl0z4q7lj8l0nmf65dc2 0.03507183 LTC62.72 CZK65.69 CZK→
ltc1qpzrt0lcrmry4j99glfvjd0lpj7qt7rc9jg8l9t92xqh8jkkszpps5knud6 0.00035072 LTC0.63 CZK0.66 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 4.93136581 LTC8819.26 CZK9235.86 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 4.96678836 LTC8882.61 CZK9302.20 CZK
3f8e736e2865daf5f63ccc2a6762c834ae5ed2d94e60d673e7638e100cfcefe5
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 2.50950073 LTC4487.99 CZK4699.99 CZK
 
ltc1qrm0pd2f6q8gqzemqyrrl0z4q7lj8l0nmf65dc2 0.02127605 LTC38.05 CZK39.85 CZK→
ltc1qa2nw4qhf4nzkl5sqs94rzhx6r7aztjwemlv2z9yc4u9ed42tnp5qw8ajce 0.00021276 LTC0.38 CZK0.40 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 2.48791272 LTC4449.38 CZK4659.56 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 2.50940153 LTC4487.81 CZK4699.81 CZK
1bb477be65117ae2464868ad105ff1246cc77703e3137d772694fcaf40917def
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 2.48791272 LTC4449.38 CZK4659.56 CZK
 
ltc1q2ceeyr29976yydynjdpuuhh6l96gak9ncy9vh8 0.02381261 LTC42.59 CZK44.60 CZK→
ltc1qsglcmlnpt35qfp90z6nve4eclpdmfxnhzta2nllw7zjs9q2uhm4qwe0x4t 0.00023813 LTC0.43 CZK0.45 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 2.46376278 LTC4406.19 CZK4614.33 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 2.48781352 LTC4449.21 CZK4659.38 CZK
d5158ab1657da9c98864665f97ae2610e6987555ee8af62f05ac7d6c1d2a3dfc
mined 929 days 13 hours ago
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 4.93136581 LTC8819.26 CZK9235.86 CZK
 
ltc1ql5puw2ztruutpycvktxkuxep3ljfrrwhc2c0u3 0.01013330 LTC18.12 CZK18.98 CZK→
ltc1q7ucdv0tz9j360wngt4df77x24hgd9mqs6dr23jm7vkxw2eh6xwdssmkngh 0.00010133 LTC0.18 CZK0.19 CZK→
MBFzpU7t69ESYdi2sManTmZtvgRCANFGxy 4.92103198 LTC8800.77 CZK9216.50 CZK→
Fee 0.00009920 LTC0.18 CZK0.19 CZK
537905 confirmations 4.93126661 LTC8819.08 CZK9235.67 CZK
fe7a30d77d9fb04bbd326eed2d450991f70ff2f5d146271e3a89c6db13baeeff
mined 929 days 13 hours ago
LaodYSTmm6Hp7vpAAKoScjKC844BnM6HAg 0.19000000 LTC339.80 CZK355.85 CZK
LPnkFhomh4eJZpx7Tv5sa41uc5oENB8kQt 0.13600000 LTC243.22 CZK254.71 CZK
LQzbFJH4iQzGjtCnY3ihiiHDT5tUfmYhm6 1.36984924 LTC2449.84 CZK2565.56 CZK
 
MRKkVnANJCeyN4ozAzU8V1abLJsQZDSuup 0.64876087 LTC1160.24 CZK1215.05 CZK→
LYG63gCFRhUyyc5CiySAMk52dgQiyTiAir 0.16867783 LTC301.66 CZK315.91 CZK→
LLCPtLDuGjJ9i6ysYSeWtdpTwkAidqfr7z 0.87821054 LTC1570.59 CZK1644.78 CZK→
Fee 0.00020000 LTC0.36 CZK0.37 CZK
537905 confirmations 1.69564924 LTC3032.50 CZK3175.75 CZK
c828c5b07e6df0e86820f8b6db7eb4f5dbbb139e14f5010a89b27c1e17b29aa9
mined 929 days 13 hours ago
MQjnr5e6LpNwTtxffjzh2v2ikMFSJMfuxJ 6.23844118 LTC11156.83 CZK11683.85 CZK
 
ltc1qtkrk2dyh69cxt88pxqy8056x9t76hjhg0rz3hm 0.32600000 LTC583.02 CZK610.56 CZK→
ltc1qsgllx0xv26c8h7azmkvmw6qw9a20hr3sy9q4lf 0.14149631 LTC253.05 CZK265.01 CZK→
MCgWd6Tu3ZYCCBtYyPtBu2tZfybtbxAdqA 5.77087207 LTC10320.63 CZK10808.15 CZK→
Fee 0.00007280 LTC0.13 CZK0.14 CZK
537905 confirmations 6.23836838 LTC11156.70 CZK11683.72 CZK
13eb6e103d325ace9809be219ab570ec3e07e753b052758984566b593a2bf517
mined 929 days 13 hours ago
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.09040957 LTC161.69 CZK169.33 CZK
 
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.00010000 LTC0.18 CZK0.19 CZK→
LNzHaSbskucMdH983EcVSRFpjznsrAr6ih 0.08755957 LTC156.59 CZK163.99 CZK→
Fee 0.00035000 LTC0.63 CZK0.66 CZK
537905 confirmations 0.09005957 LTC161.06 CZK168.67 CZK
7f566c7e1797df1e79d549024339944ef41f2fc3de9fa8a47d8e577d47b06d68
mined 929 days 13 hours ago
ltc1q6gygermkdllq0ywxwaxj00shegvpg5trng2kdrkdxzgqwsrrd2fslu8l77 51.77201413 LTC92589.08 CZK96962.77 CZK
 
LNATa7CYWz4g5tCncHbAqiAn4Gbq5mzjer 12.81320736 LTC22915.14 CZK23997.60 CZK→
ltc1q6gygermkdllq0ywxwaxj00shegvpg5trng2kdrkdxzgqwsrrd2fslu8l77 38.95876997 LTC69673.87 CZK72965.10 CZK→
Fee 0.00003680 LTC0.07 CZK0.07 CZK
537905 confirmations 51.77197733 LTC92589.01 CZK96962.70 CZK
0a94a4600c447b0ddab4ec035c8b8896ff2b4c43fd28f475a96758a603bd02c9
mined 929 days 13 hours ago
MMpVcXuoZcy6136b7zz8JKXuifjYKdKh4J 194.42857500 LTC347716.09 CZK364141.39 CZK
 
ltc1q332pxr2tftdv2y92gpn47r8pqlsk75ke7pyaxy 0.03874467 LTC69.29 CZK72.56 CZK→
MMpVcXuoZcy6136b7zz8JKXuifjYKdKh4J 194.38978933 LTC347646.73 CZK364068.75 CZK→
Fee 0.00004100 LTC0.07 CZK0.08 CZK
537905 confirmations 194.42853400 LTC347716.02 CZK364141.31 CZK