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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
727,498 ( 0.016%)
Market
Price
$23.10 @ 0.006865 ETH (-6.45%)
Onchain Market Cap
$23,100,000,000.00
Circulating Supply Market Cap
$14,578,567,444.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
2.778187205438752742 LINKValue
$64.18 ( ~0.0190724358984062 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $23.09 0.0068685 Eth | $96,298,617.00 4,023,962.770 LINK | 24.3904% |
2 | Coinbase Exchange | LINK-USD | $23.07 0.0068557 Eth | $30,123,094.00 1,306,008.850 LINK | 7.9161% |
3 | MEXC | LINK-USDT | $23.10 0.0068558 Eth | $26,221,792.00 1,134,954.650 LINK | 6.8793% |
4 | Slex | LINK-USDT | $23.12 0.0068612 Eth | $24,119,256.00 1,004,436.500 LINK | 6.0882% |
5 | CoinW | LINK-USDT | $23.12 0.0068640 Eth | $23,047,387.00 996,673.080 LINK | 6.0411% |
6 | OKX | LINK-USDT | $23.07 0.0068576 Eth | $15,965,887.00 669,168.495 LINK | 4.0560% |
7 | DigiFinex | LINK-USDT | $23.08 0.0068615 Eth | $11,984,726.00 519,246.170 LINK | 3.1473% |
8 | HTX | LINK-USDT | $23.07 0.0068567 Eth | $11,152,995.00 465,785.439 LINK | 2.8233% |
9 | XT.COM | LINK-USDT | $23.04 0.0068533 Eth | $9,568,022.00 399,928.380 LINK | 2.4241% |
10 | Azbit | LINK-USDT | $23.13 0.0068628 Eth | $9,508,363.00 397,933.699 LINK | 2.4120% |
11 | Coinstore | LINK-USDT | $22.92 0.0068200 Eth | $8,631,878.00 360,723.330 LINK | 2.1864% |
12 | BTSE | LINK-USDT | $23.15 0.0068674 Eth | $8,521,210.00 368,079.932 LINK | 2.2310% |
13 | Binance | LINK-FDUSD | $23.00 0.0068453 Eth | $7,483,486.00 312,372.720 LINK | 1.8934% |
14 | Bitunix | LINK-USDT | $23.07 0.0068521 Eth | $7,407,353.00 321,197.880 LINK | 1.9469% |
15 | Biconomy.com | LINK-USDT | $23.11 0.0068560 Eth | $6,780,043.00 283,164.090 LINK | 1.7163% |
16 | BYDFi | LINK-USDT | $23.14 0.0068701 Eth | $5,846,758.00 252,686.120 LINK | 1.5316% |
17 | Kraken | LINK-USD | $23.10 0.0068667 Eth | $5,741,177.00 248,498.901 LINK | 1.5062% |
18 | Hotcoin | LINK-USDT | $23.07 0.0068536 Eth | $4,655,211.00 201,772.000 LINK | 1.2230% |
19 | LATOKEN | LINK-USDT | $23.08 0.0068591 Eth | $4,625,068.00 200,421.264 LINK | 1.2148% |
20 | LBank | LINK-USDT | $23.10 0.0068714 Eth | $4,427,482.00 191,655.270 LINK | 1.1617% |
21 | KuCoin | LINK-USDT | $23.08 0.0068598 Eth | $4,107,575.00 177,978.658 LINK | 1.0788% |
22 | Binance | LINK-USDC | $23.15 0.0068747 Eth | $3,794,331.00 159,528.490 LINK | 0.9669% |
23 | Dex-Trade | LINK-USDT | $23.11 0.0068569 Eth | $3,091,978.00 133,793.400 LINK | 0.8110% |
24 | Bitvavo | LINK-EUR | $23.14 0.0068681 Eth | $2,412,031.00 104,236.071 LINK | 0.6318% |
25 | Dcoin | LINK-USDT | $23.08 0.0068598 Eth | $2,347,719.00 101,742.000 LINK | 0.6167% |
26 | Coinbase Exchange | LINK-GBP | $23.12 0.0068589 Eth | $2,269,304.00 98,148.460 LINK | 0.5949% |
27 | CoinEx | LINK-USDT | $23.13 0.0068647 Eth | $2,193,983.00 92,465.381 LINK | 0.5605% |
28 | PointPay | LINK-USDT | $23.12 0.0068655 Eth | $1,545,211.00 64,720.529 LINK | 0.3923% |
29 | EXMO | LINK-USDT | $23.09 0.0068620 Eth | $1,489,951.00 64,534.195 LINK | 0.3912% |
30 | Bitstamp | LINK-USD | $23.12 0.0068716 Eth | $1,357,583.00 58,718.971 LINK | 0.3559% |
31 | Bitbank | LINK-JPY | $23.21 0.0068987 Eth | $1,246,228.00 53,693.951 LINK | 0.3255% |
32 | Phemex | LINK-USDT | $23.08 0.0068588 Eth | $1,108,720.00 48,044.380 LINK | 0.2912% |
33 | Bitstamp | LINK-EUR | $23.10 0.0068648 Eth | $1,091,713.00 47,266.398 LINK | 0.2865% |
34 | WhiteBIT | LINK-TRY | $23.23 0.0068924 Eth | $1,054,679.00 45,401.700 LINK | 0.2752% |
35 | WhiteBIT | LINK-BTC | $23.08 0.0068514 Eth | $1,045,968.00 45,327.210 LINK | 0.2747% |
36 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.16 0.0068846 Eth | $999,060.00 42,634.570 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2584% |
37 | Coinbase Exchange | LINK-EUR | $23.12 0.0068592 Eth | $927,972.00 40,145.630 LINK | 0.2433% |
38 | Bybit | LINK-USDC | $23.09 0.0068639 Eth | $778,529.00 32,860.629 LINK | 0.1992% |
39 | EarnBIT | LINK-USDT | $23.14 0.0068732 Eth | $764,146.00 32,028.754 LINK | 0.1941% |
40 | BigONE | LINK-USDT | $23.12 0.0068590 Eth | $756,392.00 32,712.770 LINK | 0.1983% |
41 | BitStorage | LINK-USDT | $23.10 0.0068596 Eth | $739,515.00 32,008.710 LINK | 0.1940% |
42 | Azbit | LINK-ETH | $23.11 0.0068611 Eth | $687,774.00 29,332.641 LINK | 0.1778% |
43 | Coinbase Exchange | LINK-USDT | $23.10 0.0068526 Eth | $601,192.00 26,024.922 LINK | 0.1577% |
44 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.06 0.0068455 Eth | $536,614.00 22,948.108 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1391% |
45 | itBit | LINK-USD | $23.06 0.0068485 Eth | $512,689.00 22,232.833 LINK | 0.1348% |
46 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.13 0.0068750 Eth | $509,617.00 21,794.690 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1321% |
47 | Binance | LINK-TRY | $23.16 0.0068896 Eth | $495,139.00 20,493.360 LINK | 0.1242% |
48 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.12 0.0068721 Eth | $468,035.00 20,290.500 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1230% |
49 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $22.97 0.0068270 Eth | $459,695.00 19,596.862 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1188% |
50 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.13 0.0068677 Eth | $457,083.00 477,315.789 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.8931% |
51 | Slex | LINK-ETH | $23.02 0.0068482 Eth | $416,503.00 17,786.830 LINK | 0.1078% |
52 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $23.16 0.0068847 Eth | $402,463.00 16,799.010 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1018% |
53 | HashKey Exchange | LINK-USD | $23.05 0.0068593 Eth | $377,885.00 15,726.433 LINK | 0.0953% |
54 | GMO Japan | LINK-JPY | $23.06 0.0068539 Eth | $373,855.00 16,211.200 LINK | 0.0983% |
55 | Binance | LINK-EUR | $23.00 0.0068468 Eth | $351,986.00 14,723.790 LINK | 0.0892% |
56 | BitMart | LINK-BTC | $23.11 0.0068691 Eth | $342,154.00 14,807.660 LINK | 0.0898% |
57 | Coinbase Exchange | LINK-ETH | $23.11 0.0068695 Eth | $325,957.00 14,103.670 LINK | 0.0855% |
58 | WhiteBIT | LINK-EUR | $23.10 0.0068666 Eth | $303,370.00 13,131.030 LINK | 0.0796% |
59 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.13 0.0068750 Eth | $278,590.00 289,217.549 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.7530% |
60 | Gemini | LINK-USD | $23.13 0.0068767 Eth | $260,663.00 11,268.565 LINK | 0.0683% |
61 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.14 0.0068712 Eth | $257,396.00 10,996.398 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0667% |
62 | Coinbase Exchange | LINK-BTC | $23.11 0.0068586 Eth | $252,230.00 10,916.130 LINK | 0.0662% |
63 | LATOKEN | LINK-BTC | $22.97 0.0068355 Eth | $249,195.00 10,849.016 LINK | 0.0658% |
64 | Bitci TR | LINK-TRY | $23.05 0.0068555 Eth | $245,179.00 10,137.001 LINK | 0.0614% |
65 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.06 0.0068543 Eth | $227,900.00 9,469.155 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0574% |
66 | Binance | LINK-BRL | $23.02 0.0068506 Eth | $227,122.00 9,447.740 LINK | 0.0573% |
67 | OKX | LINK-USDC | $23.11 0.0068694 Eth | $222,213.00 9,288.610 LINK | 0.0563% |
68 | PointPay | LINK-BTC | $23.06 0.0068629 Eth | $181,597.00 7,835.112 LINK | 0.0475% |
69 | BitStorage | LINK-ETH | $23.11 0.0068621 Eth | $180,718.00 7,819.200 LINK | 0.0474% |
70 | Hotcoin | LINK-BTC | $23.09 0.0068599 Eth | $159,420.00 6,903.360 LINK | 0.0418% |
71 | BitMart | LINK-ETH | $23.12 0.0068723 Eth | $157,205.00 6,800.360 LINK | 0.0412% |
72 | Binance US | LINK-USDT | $23.11 0.0068589 Eth | $150,291.00 6,503.518 LINK | 0.0394% |
73 | Bitkub | LINK-THB | $23.17 0.0068870 Eth | $149,136.00 6,437.537 LINK | 0.0390% |
74 | BTCMarkets | LINK-AUD | $22.80 0.0067644 Eth | $139,334.00 6,111.908 LINK | 0.0370% |
75 | Kanga | LINK-PLN | $23.12 0.0068590 Eth | $135,728.00 0.000 LINK | 0.0000% |
76 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.12 0.0068731 Eth | $114,438.00 4,886.586 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0296% |
77 | OKX | LINK-EUR | $23.09 0.0068642 Eth | $106,832.00 4,641.081 LINK | 0.0281% |
78 | KuCoin | LINK-USDC | $22.94 0.0068171 Eth | $91,742.00 4,000.065 LINK | 0.0242% |
79 | Bitso | LINK-USD | $23.12 0.0068727 Eth | $83,549.00 3,613.346 LINK | 0.0219% |
80 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.16 0.0068846 Eth | $81,984.00 84,642.198 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.5130% |
81 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.13 0.0068753 Eth | $73,084.00 3,170.640 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0192% |
82 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.13 0.0068750 Eth | $68,597.00 2,859.011 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0173% |
83 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $23.13 0.0068746 Eth | $65,951.00 2,819.982 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0171% |
84 | Foxbit | LINK-BRL | $23.09 0.0068508 Eth | $64,454.00 2,650.551 LINK | 0.0161% |
85 | Coins.ph | LINK-PHP | $23.25 0.0069122 Eth | $58,311.00 2,422.387 LINK | 0.0147% |
86 | Hotcoin | LINK-ETH | $23.12 0.0068580 Eth | $56,552.00 2,446.210 LINK | 0.0148% |
87 | Bitexen | LINK-TRY | $22.89 0.0068097 Eth | $51,440.00 2,247.165 LINK | 0.0136% |
88 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $23.17 0.0068857 Eth | $43,275.00 1,842.240 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0112% |
89 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.26 0.0069102 Eth | $29,852.00 1,265.300 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0077% |
90 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $23.02 0.0068349 Eth | $19,034.52 25.926 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
91 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.11 0.0068624 Eth | $17,306.65 750.199 0X5947BB275C521040051D82396192181B413227A3 | 0.0045% |
92 | HTX | LINK-BTC | $23.03 0.0068460 Eth | $14,473.15 613.324 LINK | 0.0037% |
93 | Gemini | LINK-BTC | $23.11 0.0068714 Eth | $13,689.71 592.261 LINK | 0.0036% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.00 0.0068244 Eth | $13,053.39 564.691 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0034% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $23.10 0.0068672 Eth | $12,106.20 517.530 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0031% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $23.11 0.0068609 Eth | $10,641.60 442.407 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0027% |
97 | Binance US | LINK-BTC | $22.92 0.0068128 Eth | $8,497.89 370.797 LINK | 0.0022% |
98 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.13 0.0068636 Eth | $8,091.98 344.584 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0021% |
99 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $23.04 0.0068469 Eth | $6,708.70 279.596 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0017% |
100 | Ace | LINK-USDT | $23.04 0.0068536 Eth | $3,772.35 157.640 LINK | 0.0010% |
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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