ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
729,953 ( -0.005%)
Market
Price
$24.95 @ 0.007569 ETH (-4.44%)
Onchain Market Cap
$24,950,000,000.00
Circulating Supply Market Cap
$15,916,864,108.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $24.97 0.0075694 Eth | $78,306,888.00 3,075,108.940 LINK | 21.3220% |
2 | Coinbase Exchange | LINK-USD | $24.98 0.0075724 Eth | $40,733,700.00 1,630,848.400 LINK | 11.3079% |
3 | Bybit | LINK-USDT | $24.95 0.0075638 Eth | $26,503,039.00 1,041,131.823 LINK | 7.2189% |
4 | Slex | LINK-USDT | $24.95 0.0075542 Eth | $25,547,013.00 1,006,983.550 LINK | 6.9822% |
5 | HTX | LINK-USDT | $24.95 0.0075659 Eth | $15,131,855.00 595,227.024 LINK | 4.1272% |
6 | OKX | LINK-USDT | $24.93 0.0075592 Eth | $13,990,753.00 549,782.228 LINK | 3.8121% |
7 | DigiFinex | LINK-USDT | $24.94 0.0075612 Eth | $10,059,627.00 403,398.100 LINK | 2.7971% |
8 | Azbit | LINK-USDT | $24.90 0.0075388 Eth | $8,018,910.00 314,658.521 LINK | 2.1818% |
9 | Binance | LINK-FDUSD | $24.94 0.0075615 Eth | $7,983,159.00 314,051.740 LINK | 2.1776% |
10 | XT.COM | LINK-USDT | $24.96 0.0075664 Eth | $7,852,734.00 308,337.370 LINK | 2.1379% |
11 | Coinstore | LINK-USDT | $24.93 0.0075579 Eth | $7,289,850.00 286,516.480 LINK | 1.9866% |
12 | KuCoin | LINK-USDT | $24.96 0.0075687 Eth | $6,830,459.00 273,606.093 LINK | 1.8971% |
13 | WhiteBIT | LINK-USDT | $25.00 0.0075780 Eth | $6,729,040.00 269,212.150 LINK | 1.8666% |
14 | Bitunix | LINK-USDT | $24.95 0.0075650 Eth | $6,119,124.00 245,280.320 LINK | 1.7007% |
15 | Binance | LINK-USDC | $24.99 0.0075748 Eth | $5,477,991.00 214,528.750 LINK | 1.4875% |
16 | Kraken | LINK-USD | $24.95 0.0075675 Eth | $5,216,239.00 209,060.725 LINK | 1.4496% |
17 | CoinW | LINK-USDT | $24.93 0.0075616 Eth | $5,054,186.00 202,724.060 LINK | 1.4056% |
18 | Hotcoin | LINK-USDT | $24.96 0.0075667 Eth | $4,855,426.00 194,511.930 LINK | 1.3487% |
19 | BTSE | LINK-USDT | $24.96 0.0075682 Eth | $4,824,328.00 193,254.139 LINK | 1.3400% |
20 | BYDFi | LINK-USDT | $24.94 0.0075603 Eth | $4,308,253.00 172,761.770 LINK | 1.1979% |
21 | LBank | LINK-USDT | $24.99 0.0075746 Eth | $3,760,822.00 150,502.310 LINK | 1.0435% |
22 | LATOKEN | LINK-USDT | $24.99 0.0075739 Eth | $3,718,744.00 148,816.764 LINK | 1.0319% |
23 | FMCPAY | LINK-USDT | $24.96 0.0075684 Eth | $3,212,229.00 126,883.074 LINK | 0.8798% |
24 | Coinbase Exchange | LINK-EUR | $25.00 0.0075812 Eth | $3,092,733.00 123,729.350 LINK | 0.8579% |
25 | QMall | LINK-USDT | $24.96 0.0075672 Eth | $3,091,944.00 121,525.743 LINK | 0.8426% |
26 | Dex-Trade | LINK-USDT | $24.95 0.0075618 Eth | $2,482,843.00 99,517.750 LINK | 0.6900% |
27 | Bitvavo | LINK-EUR | $25.01 0.0075841 Eth | $2,401,342.00 96,004.693 LINK | 0.6657% |
28 | WhiteBIT | LINK-BTC | $24.96 0.0075683 Eth | $2,169,446.00 86,903.940 LINK | 0.6026% |
29 | CoinEx | LINK-USDT | $24.96 0.0075645 Eth | $1,809,748.00 70,987.821 LINK | 0.4922% |
30 | Coinbase Exchange | LINK-GBP | $24.94 0.0075624 Eth | $1,808,135.00 72,487.670 LINK | 0.5026% |
31 | FMCPAY | LINK-ETH | $24.96 0.0075592 Eth | $1,604,634.00 63,826.080 LINK | 0.4426% |
32 | WhiteBIT | LINK-TRY | $25.06 0.0075977 Eth | $1,480,872.00 59,092.170 LINK | 0.4097% |
33 | FMCPAY | LINK-BTC | $24.98 0.0075728 Eth | $1,466,811.00 58,131.300 LINK | 0.4031% |
34 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.92 0.0075544 Eth | $1,205,986.00 48,013.986 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3329% |
35 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.83 0.0075285 Eth | $1,194,259.00 47,474.374 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3292% |
36 | tanX | LINK-USDC | $24.98 0.0075697 Eth | $1,125,459.00 44,294.860 LINK | 0.3071% |
37 | PointPay | LINK-USDT | $24.98 0.0075725 Eth | $1,076,692.00 42,197.725 LINK | 0.2926% |
38 | OKX | LINK-USDC | $24.95 0.0075652 Eth | $896,279.00 35,400.015 LINK | 0.2455% |
39 | EXMO | LINK-USDT | $24.96 0.0075714 Eth | $895,437.00 35,869.483 LINK | 0.2487% |
40 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.97 0.0075700 Eth | $867,444.00 34,467.317 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2390% |
41 | Phemex | LINK-USDT | $24.96 0.0075664 Eth | $835,768.00 33,487.910 LINK | 0.2322% |
42 | Gemini | LINK-USD | $24.95 0.0075665 Eth | $825,793.00 33,091.783 LINK | 0.2295% |
43 | Trubit | LINK-USDT | $24.97 0.0075694 Eth | $766,717.00 30,221.180 LINK | 0.2095% |
44 | BigONE | LINK-USDT | $24.96 0.0075665 Eth | $692,948.00 27,757.520 LINK | 0.1925% |
45 | Bitbank | LINK-JPY | $25.10 0.0076131 Eth | $679,117.00 27,055.404 LINK | 0.1876% |
46 | Binance | LINK-EUR | $25.08 0.0076035 Eth | $657,477.00 25,711.780 LINK | 0.1783% |
47 | EarnBIT | LINK-USDT | $24.94 0.0075569 Eth | $619,035.00 24,383.026 LINK | 0.1691% |
48 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $25.02 0.0075844 Eth | $616,769.00 24,153.905 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1675% |
49 | Bybit | LINK-USDC | $24.95 0.0075658 Eth | $594,339.00 23,365.297 LINK | 0.1620% |
50 | Binance | LINK-TRY | $25.06 0.0075943 Eth | $556,198.00 21,758.000 LINK | 0.1509% |
51 | WhiteBIT | LINK-EUR | $25.01 0.0075823 Eth | $491,836.00 19,665.900 LINK | 0.1364% |
52 | QMall | LINK-USDC | $24.99 0.0075738 Eth | $415,541.00 16,317.508 LINK | 0.1131% |
53 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.02 0.0075847 Eth | $385,772.00 395,644.828 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.7433% |
54 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.96 0.0075689 Eth | $366,935.00 14,536.585 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1008% |
55 | Coinbase Exchange | LINK-USDT | $24.95 0.0075644 Eth | $346,895.00 13,904.927 LINK | 0.0964% |
56 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.99 0.0075771 Eth | $333,928.00 13,261.481 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0920% |
57 | LATOKEN | LINK-BTC | $24.96 0.0075677 Eth | $326,461.00 13,078.509 LINK | 0.0907% |
58 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.85 0.0075335 Eth | $317,660.00 25,877.774 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1794% |
59 | Coinbase Exchange | LINK-BTC | $24.99 0.0075743 Eth | $297,661.00 11,911.380 LINK | 0.0826% |
60 | BitMart | LINK-BTC | $24.99 0.0075756 Eth | $294,575.00 11,788.620 LINK | 0.0817% |
61 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.01 0.0075831 Eth | $291,403.00 298,680.803 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.0710% |
62 | Bitci TR | LINK-TRY | $24.90 0.0075513 Eth | $258,961.00 10,171.040 LINK | 0.0705% |
63 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.91 0.0075509 Eth | $254,167.00 9,946.437 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0690% |
64 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $25.01 0.0075831 Eth | $221,944.00 8,664.221 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0601% |
65 | GMO Japan | LINK-JPY | $25.04 0.0075897 Eth | $200,044.00 7,988.700 LINK | 0.0554% |
66 | Slex | LINK-ETH | $24.98 0.0075691 Eth | $186,004.00 7,378.730 LINK | 0.0512% |
67 | Hotcoin | LINK-BTC | $24.98 0.0075739 Eth | $180,080.00 7,208.200 LINK | 0.0500% |
68 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.98 0.0075744 Eth | $172,410.00 6,846.955 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0475% |
69 | CoinTR | LINK-TRY | $25.10 0.0076105 Eth | $158,108.00 6,208.700 LINK | 0.0430% |
70 | Coinbase Exchange | LINK-ETH | $24.95 0.0075649 Eth | $150,964.00 6,050.110 LINK | 0.0419% |
71 | Binance US | LINK-USDT | $24.98 0.0075725 Eth | $146,840.00 5,878.937 LINK | 0.0408% |
72 | BYDFi | LINK-USDC | $24.95 0.0075613 Eth | $141,370.00 5,666.760 LINK | 0.0393% |
73 | BitStorage | LINK-ETH | $24.93 0.0075476 Eth | $140,060.00 5,617.520 LINK | 0.0390% |
74 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $24.94 0.0075606 Eth | $137,417.00 6,611.295 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0458% |
75 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.85 0.0075335 Eth | $125,898.00 4,931.519 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0342% |
76 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.83 0.0075285 Eth | $110,778.00 114,265.088 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.7923% |
77 | BitMart | LINK-ETH | $24.97 0.0075698 Eth | $103,329.00 4,138.300 LINK | 0.0287% |
78 | Kraken | LINK-USDC | $25.05 0.0075989 Eth | $103,297.00 4,122.939 LINK | 0.0286% |
79 | Mercado Bitcoin | LINK-BRL | $25.13 0.0076182 Eth | $98,437.00 3,917.299 LINK | 0.0272% |
80 | Bitso | LINK-USD | $24.94 0.0075589 Eth | $85,219.00 3,417.418 LINK | 0.0237% |
81 | Uniswap V2 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $24.82 0.0075461 Eth | $78,863.00 959.947 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0067% |
82 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.95 0.0075650 Eth | $68,004.00 2,687.704 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0186% |
83 | Hotcoin | LINK-ETH | $24.97 0.0075688 Eth | $56,565.00 2,265.680 LINK | 0.0157% |
84 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $25.05 0.0075982 Eth | $44,902.00 1,776.329 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0123% |
85 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $24.92 0.0075546 Eth | $29,981.00 1,170.432 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0081% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $25.01 0.0075821 Eth | $21,499.00 840.634 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0058% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.87 0.0075417 Eth | $20,879.00 828.362 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0057% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $24.99 0.0075770 Eth | $20,116.00 792.948 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0055% |
89 | Dex-Trade | LINK-ETH | $24.87 0.0075373 Eth | $18,669.83 750.760 LINK | 0.0052% |
90 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $24.90 0.0075505 Eth | $16,951.91 22.810 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
91 | HTX | LINK-BTC | $24.92 0.0075583 Eth | $15,183.45 594.424 LINK | 0.0041% |
92 | KuCoin | LINK-KCS | $25.07 0.0075997 Eth | $13,347.52 532.474 LINK | 0.0037% |
93 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.97 0.0075690 Eth | $11,878.62 35.396 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0002% |
94 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.93 0.0075586 Eth | $11,657.51 463.576 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0032% |
95 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.92 0.0075560 Eth | $10,781.60 430.284 0X5947BB275C521040051D82396192181B413227A3 | 0.0030% |
96 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.89 0.0075494 Eth | $8,708.55 348.084 0X5947BB275C521040051D82396192181B413227A3 | 0.0024% |
97 | Bitexen | LINK-TRY | $24.83 0.0075107 Eth | $7,689.07 309.720 LINK | 0.0021% |
98 | CoinEx | LINK-USDC | $24.89 0.0075454 Eth | $5,872.55 227.529 LINK | 0.0016% |
99 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.97 0.0075702 Eth | $5,063.71 5,182.652 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0359% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $24.82 0.0075151 Eth | $4,858.10 196.944 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0014% |
Contract Source Code Verified (Exact Match)
Contract Name:
LinkToken
Compiler Version
v0.4.16+commit.d7661dd9
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion, Audited
Contract Source Code (Solidity)Audit Report
/** *Submitted for verification at Etherscan.io on 2017-09-23 */ pragma solidity ^0.4.16; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a * b; assert(a == 0 || c / a == b); return c; } function div(uint256 a, uint256 b) internal constant returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal constant returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) constant returns (uint256); function transfer(address to, uint256 value) returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint256); function transferFrom(address from, address to, uint256 value) returns (bool); function approve(address spender, uint256 value) returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC677 is ERC20 { function transferAndCall(address to, uint value, bytes data) returns (bool success); event Transfer(address indexed from, address indexed to, uint value, bytes data); } contract ERC677Receiver { function onTokenTransfer(address _sender, uint _value, bytes _data); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) returns (bool) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /* * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } contract ERC677Token is ERC677 { /** * @dev transfer token to a contract address with additional data if the recipient is a contact. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public returns (bool success) { super.transfer(_to, _value); Transfer(msg.sender, _to, _value, _data); if (isContract(_to)) { contractFallback(_to, _value, _data); } return true; } // PRIVATE function contractFallback(address _to, uint _value, bytes _data) private { ERC677Receiver receiver = ERC677Receiver(_to); receiver.onTokenTransfer(msg.sender, _value, _data); } function isContract(address _addr) private returns (bool hasCode) { uint length; assembly { length := extcodesize(_addr) } return length > 0; } } contract LinkToken is StandardToken, ERC677Token { uint public constant totalSupply = 10**27; string public constant name = 'ChainLink Token'; uint8 public constant decimals = 18; string public constant symbol = 'LINK'; function LinkToken() public { balances[msg.sender] = totalSupply; } /** * @dev transfer token to a specified address with additional data if the recipient is a contract. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public validRecipient(_to) returns (bool success) { return super.transferAndCall(_to, _value, _data); } /** * @dev transfer token to a specified address. * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint _value) public validRecipient(_to) returns (bool success) { return super.transfer(_to, _value); } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public validRecipient(_spender) returns (bool) { return super.approve(_spender, _value); } /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public validRecipient(_to) returns (bool) { return super.transferFrom(_from, _to, _value); } // MODIFIERS modifier validRecipient(address _recipient) { require(_recipient != address(0) && _recipient != address(this)); _; } }
Contract Security Audit
- Callisto Network - April 14th, 2019 - Security Audit Report
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"transferAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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