ETH Price: $3,916.40 (+5.02%)

Token

1INCH Token (1INCH)
 

Overview

Max Total Supply

1,499,999,999.997 1INCH

Holders

108,382 ( 0.018%)

Market

Price

$0.52 @ 0.000133 ETH (-2.70%)

Onchain Market Cap

$782,307,000.00

Circulating Supply Market Cap

$725,344,605.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
laotu.eth
Balance
0.000000007167849612 1INCH

Value
$0.00 ( ~0 Eth) [0.0000%]
0xCc789E2342BE0C15661bE0b54CA82e9DF4336886
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OVERVIEW

1inch is a decentralized exchange aggregator that sources liquidity from various exchanges and is capable of splitting a single trade transaction across multiple DEXs. Smart contract technology empowers this aggregator enabling users to optimize and customize their trades.

Market

Volume (24H):$250,076,415.00
Market Capitalization:$725,344,605.00
Circulating Supply:1,392,025,797.00 1INCH
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume
1
Binance
1INCH-USDT$0.5205
0.0001328 Eth
$36,721,167.00
70,320,446.400 1INCH
22.1702%
2
Websea
1INCH-USDT$0.5194
0.0001325 Eth
$17,757,482.00
0.000 1INCH
0.0000%
3
Upbit
1INCH-KRW$0.5139
0.0001311 Eth
$11,717,700.00
22,802,704.392 1INCH
7.1891%
4
Bybit
1INCH-USDT$0.5197
0.0001326 Eth
$10,868,100.00
20,908,916.630 1INCH
6.5920%
5
Ourbit
1INCH-USDT$0.5201
0.0001327 Eth
$9,194,281.00
17,613,311.430 1INCH
5.5530%
6
OKX
1INCH-USDT$0.5192
0.0001324 Eth
$8,582,477.00
16,466,844.773 1INCH
5.1916%
7
Hotcoin
1INCH-USDT$0.5207
0.0001331 Eth
$7,552,554.00
14,504,685.000 1INCH
4.5729%
8
BYDFi
1INCH-USDT$0.5196
0.0001325 Eth
$6,977,316.00
13,427,805.200 1INCH
4.2334%
9
HTX
1INCH-USDT$0.5214
0.0001330 Eth
$5,716,704.00
10,871,235.810 1INCH
3.4274%
10
Gate.io
1INCH-USDT$0.5199
0.0001327 Eth
$4,795,842.00
9,267,063.250 1INCH
2.9217%
11
Bitunix
1INCH-USDT$0.5195
0.0001326 Eth
$4,703,648.00
9,054,331.700 1INCH
2.8546%
12
WhiteBIT
1INCH-USDT$0.5199
0.0001326 Eth
$4,541,355.00
8,734,235.860 1INCH
2.7537%
13
Bitrue
1INCH-USDT$0.5219
0.0001333 Eth
$3,460,782.00
6,631,592.340 1INCH
2.0908%
14
Coinbase Exchange
1INCH-USD$0.52
0.0001327 Eth
$3,436,866.00
6,609,356.990 1INCH
2.0838%
15
Slex
1INCH-USDC$0.5196
0.0001326 Eth
$3,337,706.00
6,396,469.600 1INCH
2.0166%
16
Slex
1INCH-USDT$0.5208
0.0001330 Eth
$3,282,945.00
6,278,694.700 1INCH
1.9795%
17
Hibt
1INCH-USDT$0.5206
0.0001329 Eth
$2,960,605.00
5,671,171.440 1INCH
1.7880%
18
MEXC
1INCH-USDT$0.5213
0.0001331 Eth
$2,760,815.00
5,296,391.960 1INCH
1.6698%
19
Toobit
1INCH-USDT$0.5192
0.0001324 Eth
$2,235,586.00
4,279,593.700 1INCH
1.3492%
20
Biconomy.com
1INCH-USDT$0.5199
0.0001326 Eth
$1,988,085.00
3,803,733.300 1INCH
1.1992%
21
LBank
1INCH-USDT$0.5206
0.0001334 Eth
$1,803,386.00
3,463,942.180 1INCH
1.0921%
22
DigiFinex
1INCH-USDT$0.5195
0.0001325 Eth
$1,775,114.00
3,416,872.420 1INCH
1.0772%
23
Bitget
1INCH-USDT$0.5204
0.0001327 Eth
$1,661,281.00
3,180,980.269 1INCH
1.0029%
24
bitcastle
1INCH-USDT$0.5205
0.0001328 Eth
$1,576,027.00
2,979,268.000 1INCH
0.9393%
25
WEEX
1INCH-USDT$0.5201
0.0001327 Eth
$1,504,897.00
2,893,338.195 1INCH
0.9122%
26
FameEX
1INCH-USDT$0.5195
0.0001326 Eth
$1,463,126.00
2,803,047.882 1INCH
0.8837%
27
Trubit
1INCH-USDT$0.5213
0.0001329 Eth
$1,369,996.00
2,639,152.500 1INCH
0.8321%
28
CoinTR
1INCH-USDT$0.5199
0.0001326 Eth
$1,356,800.00
2,604,868.200 1INCH
0.8212%
29
HitBTC
1INCH-USDT$0.5193
0.0001325 Eth
$1,185,437.00
2,277,187.200 1INCH
0.7179%
30
FMFW.io
1INCH-USDT$0.5197
0.0001325 Eth
$1,183,021.00
2,276,557.600 1INCH
0.7177%
31
BTSE
1INCH-USDT$0.5197
0.0001326 Eth
$1,075,600.00
2,069,805.918 1INCH
0.6526%
32
Coinstore
1INCH-USDT$0.5221
0.0001331 Eth
$1,060,376.00
2,026,878.866 1INCH
0.6390%
33
Azbit
1INCH-USDT$0.5215
0.0001332 Eth
$1,050,181.00
2,002,649.500 1INCH
0.6314%
34
Tokpie
1INCH-ETH$0.5231
0.0001339 Eth
$933,781.00
1,785,053.369 1INCH
0.5628%
35
Currency.com
1INCH-USD$0.519
0.0001324 Eth
$927,617.00
1,787,316.000 1INCH
0.5635%
36
KuCoin
1INCH-USDT$0.5196
0.0001325 Eth
$842,024.00
1,620,635.189 1INCH
0.5109%
37
BVOX
1INCH-USDT$0.52
0.0001326 Eth
$807,657.00
1,548,202.400 1INCH
0.4881%
38
Binance
1INCH-BTC$0.519
0.0001324 Eth
$716,357.00
1,307,552.100 1INCH
0.4122%
39
Bithumb
1INCH-KRW$0.5143
0.0001312 Eth
$612,378.00
1,190,708.652 1INCH
0.3754%
40
PointPay
1INCH-USDT$0.5195
0.0001326 Eth
$577,876.00
1,107,924.661 1INCH
0.3493%
41
CoinEx
1INCH-USDT$0.5205
0.0001328 Eth
$571,868.00
1,090,538.711 1INCH
0.3438%
42
BingX
1INCH-USDT$0.5196
0.0001325 Eth
$535,517.00
1,026,733.112 1INCH
0.3237%
43
Bitvavo
1INCH-EUR$0.5202
0.0001327 Eth
$444,742.00
854,963.895 1INCH
0.2695%
44
AscendEX (BitMax)
1INCH-USDT$0.52
0.0001326 Eth
$430,701.00
828,246.500 1INCH
0.2611%
45
Phemex
1INCH-USDT$0.5208
0.0001334 Eth
$413,829.00
794,576.980 1INCH
0.2505%
46
BitDelta
1INCH-USDT$0.5197
0.0001326 Eth
$366,199.00
703,958.200 1INCH
0.2219%
47
OKX
1INCH-USDC$0.5221
0.0001332 Eth
$339,122.00
653,610.039 1INCH
0.2061%
48
Kraken
1INCH-USD$0.522
0.0001331 Eth
$308,742.00
591,459.965 1INCH
0.1865%
49
Bitazza
1INCH-USDT$0.523
0.0001333 Eth
$308,466.00
591,519.500 1INCH
0.1865%
50
CoinW
1INCH-USDT$0.5216
0.0001330 Eth
$298,055.00
571,394.090 1INCH
0.1801%
51
Pionex
1INCH-USDT$0.5197
0.0001329 Eth
$288,239.00
551,808.065 1INCH
0.1740%
52
BitMart
1INCH-USDT$0.5208
0.0001329 Eth
$269,398.00
517,312.980 1INCH
0.1631%
53
Tokenize
1INCH-SGD$0.5181
0.0001321 Eth
$242,028.00
467,178.444 1INCH
0.1473%
54
Tokenize
1INCH-USD$0.514
0.0001317 Eth
$241,258.00
469,373.328 1INCH
0.1480%
55
Coinbase Exchange
1INCH-GBP$0.5179
0.0001321 Eth
$160,306.00
309,518.740 1INCH
0.0976%
56
DeGate
0X111111111117DC0AA78B770FA6A738034120C302-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.5231
0.0001339 Eth
$158,379.00
302,681.790 0X111111111117DC0AA78B770FA6A738034120C302
0.0954%
57
P2B
1INCH-USDT$0.5207
0.0001329 Eth
$136,472.00
262,113.000 1INCH
0.0826%
58
CoinCatch
1INCH-USDT$0.5194
0.0001325 Eth
$128,176.00
245,598.366 1INCH
0.0774%
59
Koinpark
1INCH-USDT$0.5202
0.0001327 Eth
$128,068.00
246,192.958 1INCH
0.0776%
60
OrangeX
1INCH-USDT$0.5208
0.0001328 Eth
$119,483.00
230,343.000 1INCH
0.0726%
61
Crypto.com Exchange
1INCH-USD$0.5207
0.0001328 Eth
$104,885.00
201,450.100 1INCH
0.0635%
62
Bitkub
1INCH-THB$0.5164
0.0001317 Eth
$87,968.00
170,350.411 1INCH
0.0537%
63
Vindax
1INCH-USDT$0.5196
0.0001331 Eth
$80,432.00
154,786.200 1INCH
0.0488%
64
Kraken
1INCH-EUR$0.5203
0.0001327 Eth
$76,266.00
146,567.219 1INCH
0.0462%
65
Bit2Me
1INCH-EUR$0.5201
0.0001327 Eth
$75,914.00
143,635.875 1INCH
0.0453%
66
Uniswap V3 (Ethereum)
0X111111111117DC0AA78B770FA6A738034120C302-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984$0.5247
0.0001338 Eth
$71,282.00
138,774.435 0X111111111117DC0AA78B770FA6A738034120C302
0.0438%
67
Coinbase Exchange
1INCH-EUR$0.5214
0.0001330 Eth
$69,412.00
133,126.100 1INCH
0.0420%
68
WhiteBIT
1INCH-BTC$0.5232
0.0001334 Eth
$58,304.00
111,432.000 1INCH
0.0351%
69
Icrypex
1INCH-USDT$0.5201
0.0001327 Eth
$56,549.00
108,723.808 1INCH
0.0343%
70
Tothemoon
1INCH-USDT$0.5211
0.0001331 Eth
$54,178.00
103,970.971 1INCH
0.0328%
71
Crypto.com Exchange
1INCH-USDT$0.5224
0.0001332 Eth
$45,168.00
86,469.200 1INCH
0.0273%
72
Bitfinex
1INCH-USD$0.5264
0.0001343 Eth
$39,607.00
75,234.965 1INCH
0.0237%
73
Bittime
1INCH-IDR$0.5214
0.0001330 Eth
$38,150.00
73,726.600 1INCH
0.0232%
74
BloFin
1INCH-USDT$0.5196
0.0001326 Eth
$34,209.00
65,469.500 1INCH
0.0206%
75
Coinbase Exchange
1INCH-BTC$0.526
0.0001342 Eth
$25,892.00
49,225.820 1INCH
0.0155%
76
TokoCrypto
1INCH-USDT$0.5203
0.0001328 Eth
$17,149.03
32,957.211 1INCH
0.0104%
77
Korbit
1INCH-KRW$0.5152
0.0001314 Eth
$12,718.74
24,782.200 1INCH
0.0078%
78
Bitlo
1INCH-TRY$0.5209
0.0001329 Eth
$11,480.41
21,893.749 1INCH
0.0069%
79
Bitazza
1INCH-THB$0.517
0.0001324 Eth
$9,066.06
17,391.900 1INCH
0.0055%
80
Mercado Bitcoin
1INCH-BRL$0.5183
0.0001322 Eth
$8,938.09
17,245.316 1INCH
0.0054%
81
Uniswap V3 (Polygon)
0X9C2C5FD7B07E95EE044DDEBA0E97A665F142394F-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$0.5188
0.0001323 Eth
$7,535.45
14,686.075 0X9C2C5FD7B07E95EE044DDEBA0E97A665F142394F
0.0046%
82
OKX
1INCH-EUR$0.5203
0.0001327 Eth
$7,316.07
13,854.328 1INCH
0.0044%
83
Kanga
1INCH-USDT$0.5207
0.0001329 Eth
$6,238.79
0.000 1INCH
0.0000%
84
CEX.IO
1INCH-USD$0.52
0.0001326 Eth
$5,077.01
9,601.095 1INCH
0.0030%
85
Gate.io
1INCH-ETH$0.5255
0.0001341 Eth
$4,410.45
8,201.238 1INCH
0.0026%
86
Uniswap V2 (Ethereum)
0X111111111117DC0AA78B770FA6A738034120C302-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$0.5235
0.0001335 Eth
$3,635.70
6,880.476 0X111111111117DC0AA78B770FA6A738034120C302
0.0022%
87
WOO X
1INCH-USDT$0.5193
0.0001324 Eth
$2,933.38
5,648.560 1INCH
0.0018%
88
CEX.IO
1INCH-USDT$0.5214
0.0001335 Eth
$2,836.91
5,331.084 1INCH
0.0017%
89
Uniswap V3 (Ethereum)
0X111111111117DC0AA78B770FA6A738034120C302-0X111111517E4929D3DCBDFA7CCE55D30D4B6BC4D6$0.5212
0.0001330 Eth
$2,480.21
4,725.984 0X111111111117DC0AA78B770FA6A738034120C302
0.0015%
90
Vindax
1INCH-BTC$0.521
0.0001331 Eth
$1,567.81
3,009.500 1INCH
0.0009%
91
NovaDAX
1INCH-BRL$0.5157
0.0001315 Eth
$1,117.21
2,166.600 1INCH
0.0007%
92
TokoCrypto
1INCH-BTC$0.5212
0.0001335 Eth
$1,024.95
1,966.373 1INCH
0.0006%
93
CEX.IO
1INCH-BTC$0.5233
0.0001340 Eth
$446.25
775.265 1INCH
0.0002%
94
CEX.IO
1INCH-EUR$0.5235
0.0001341 Eth
$361.53
682.656 1INCH
0.0002%
95
Energiswap
0XDDA6205DC3F47E5280EB726613B27374EEE9D130-0XA55F26319462355474A9F2C8790860776A329AA4$0.5202
0.0001331 Eth
$181.00
348.777 0XDDA6205DC3F47E5280EB726613B27374EEE9D130
0.0001%
96
CEX.IO
1INCH-USDC$0.5228
0.0001335 Eth
$36.53
69.875 1INCH
0.0000%
97
LATOKEN
1INCH-USDT$0.5132
0.0001309 Eth
$34.22
66.689 1INCH
0.0000%
98
Gate.io
1INCH-TRY$0.5241
0.0001337 Eth
$20.81
40.079 1INCH
0.0000%
99
YoBit
1INCH-USD$0.5189
0.0001347 Eth
$1.70
3.276 1INCH
0.0000%
100
Coinmetro
1INCH-USDT$0.5206
0.0001328 Eth
$0.00
0.000 1INCH
0.0000%

Contract Source Code Verified (Exact Match)

Contract Name:
OneInch

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 1000000 runs

Other Settings:
default evmVersion, MIT license, Audited

Contract Source Code (Solidity)Audit Report

/**
 *Submitted for verification at Etherscan.io on 2020-12-23
*/

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*/
// File: @openzeppelin/contracts/GSN/Context.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// File: @openzeppelin/contracts/math/SafeMath.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

// File: @openzeppelin/contracts/token/ERC20/ERC20.sol


pragma solidity >=0.6.0 <0.8.0;




/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

    mapping (address => mapping (address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor (string memory name_, string memory symbol_) public {
        _name = name_;
        _symbol = symbol_;
        _decimals = 18;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view returns (uint8) {
        return _decimals;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Sets {decimals} to a value other than the default one of 18.
     *
     * WARNING: This function should only be called from the constructor. Most
     * applications that interact with token contracts will not expect
     * {decimals} to ever change, and may work incorrectly if it does.
     */
    function _setupDecimals(uint8 decimals_) internal {
        _decimals = decimals_;
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}

// File: @openzeppelin/contracts/token/ERC20/ERC20Burnable.sol


pragma solidity >=0.6.0 <0.8.0;



/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    using SafeMath for uint256;

    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        uint256 decreasedAllowance = allowance(account, _msgSender()).sub(amount, "ERC20: burn amount exceeds allowance");

        _approve(account, _msgSender(), decreasedAllowance);
        _burn(account, amount);
    }
}

// File: @openzeppelin/contracts/access/Ownable.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

// File: @openzeppelin/contracts/utils/Counters.sol


pragma solidity >=0.6.0 <0.8.0;


/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the {SafeMath}
 * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never
 * directly accessed.
 */
library Counters {
    using SafeMath for uint256;

    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        // The {SafeMath} overflow check can be skipped here, see the comment at the top
        counter._value += 1;
    }

    function decrement(Counter storage counter) internal {
        counter._value = counter._value.sub(1);
    }
}

// File: contracts/IERC20Permit.sol


pragma solidity ^0.6.0;

// A copy of https://github.com/OpenZeppelin/openzeppelin-contracts/blob/ecc66719bd7681ed4eb8bf406f89a7408569ba9b/contracts/drafts/IERC20Permit.sol

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over `owner`'s tokens,
     * given `owner`'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for `permit`, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// File: contracts/ECDSA.sol


pragma solidity ^0.6.0;

// A copy of https://github.com/OpenZeppelin/openzeppelin-contracts/blob/ecc66719bd7681ed4eb8bf406f89a7408569ba9b/contracts/cryptography/ECDSA.sol

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        // Check the signature length
        if (signature.length != 65) {
            revert("ECDSA: invalid signature length");
        }

        // Divide the signature in r, s and v variables
        bytes32 r;
        bytes32 s;
        uint8 v;

        // ecrecover takes the signature parameters, and the only way to get them
        // currently is to use assembly.
        // solhint-disable-next-line no-inline-assembly
        assembly {
            r := mload(add(signature, 0x20))
            s := mload(add(signature, 0x40))
            v := byte(0, mload(add(signature, 0x60)))
        }

        return recover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover-bytes32-bytes-} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, "ECDSA: invalid signature s value");
        require(v == 27 || v == 28, "ECDSA: invalid signature v value");

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        require(signer != address(0), "ECDSA: invalid signature");

        return signer;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * replicates the behavior of the
     * https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign[`eth_sign`]
     * JSON-RPC method.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }
}

// File: contracts/EIP712.sol


pragma solidity ^0.6.0;

// A copy of https://github.com/OpenZeppelin/openzeppelin-contracts/blob/ecc66719bd7681ed4eb8bf406f89a7408569ba9b/contracts/drafts/EIP712.sol

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 */
abstract contract EIP712 {
    /* solhint-disable var-name-mixedcase */
    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;
    uint256 private immutable _CACHED_CHAIN_ID;

    bytes32 private immutable _HASHED_NAME;
    bytes32 private immutable _HASHED_VERSION;
    bytes32 private immutable _TYPE_HASH;
    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) internal {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        bytes32 typeHash = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
        _CACHED_CHAIN_ID = _getChainId();
        _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);
        _TYPE_HASH = typeHash;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (_getChainId() == _CACHED_CHAIN_ID) {
            return _CACHED_DOMAIN_SEPARATOR;
        } else {
            return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);
        }
    }

    function _buildDomainSeparator(bytes32 typeHash, bytes32 name, bytes32 version) private view returns (bytes32) {
        return keccak256(
            abi.encode(
                typeHash,
                name,
                version,
                _getChainId(),
                address(this)
            )
        );
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", _domainSeparatorV4(), structHash));
    }

    function _getChainId() private pure returns (uint256 chainId) {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            chainId := chainid()
        }
    }
}

// File: contracts/ERC20Permit.sol


pragma solidity ^0.6.0;






// An adapted copy of https://github.com/OpenZeppelin/openzeppelin-contracts/blob/ecc66719bd7681ed4eb8bf406f89a7408569ba9b/contracts/drafts/ERC20Permit.sol

/**
 * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712 {
    using Counters for Counters.Counter;

    mapping (address => Counters.Counter) private _nonces;

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private immutable _PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");

    /**
     * @dev See {IERC20Permit-permit}.
     */
    function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public virtual override {
        // solhint-disable-next-line not-rely-on-time
        require(block.timestamp <= deadline, "ERC20Permit: expired deadline");

        bytes32 structHash = keccak256(
            abi.encode(
                _PERMIT_TYPEHASH,
                owner,
                spender,
                value,
                _nonces[owner].current(),
                deadline
            )
        );

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSA.recover(hash, v, r, s);
        require(signer == owner, "ERC20Permit: invalid signature");

        _nonces[owner].increment();
        _approve(owner, spender, value);
    }

    /**
     * @dev See {IERC20Permit-nonces}.
     */
    function nonces(address owner) public view override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view override returns (bytes32) {
        return _domainSeparatorV4();
    }
}

// File: contracts/OneInch.sol


pragma solidity ^0.6.0;





contract OneInch is ERC20Permit, ERC20Burnable, Ownable {
    constructor(address _owner) public ERC20("1INCH Token", "1INCH") EIP712("1INCH Token", "1") {
        _mint(_owner, 1.5e9 ether);
        transferOwnership(_owner);
    }

    function mint(address to, uint256 amount) external onlyOwner {
        _mint(to, amount);
    }
}

Contract Security Audit

Contract ABI

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{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000005E89f8d81C74E311458277EA1Be3d3247c7cd7D1

-----Decoded View---------------
Arg [0] : _owner (address): 0x5E89f8d81C74E311458277EA1Be3d3247c7cd7D1

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000005E89f8d81C74E311458277EA1Be3d3247c7cd7D1


Deployed Bytecode Sourcemap

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Swarm Source

ipfs://fd77525d5811b0476c6aa859e8c0f6389de71d2535d9fc3cd235877d1b836943
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