Overview
Max Total Supply
2,175,481,894.672521974928803154 CRV
Holders
88,122 ( -0.005%)
Market
Price
$0.28 @ 0.000108 ETH (-5.38%)
Onchain Market Cap
$618,079,318.00
Circulating Supply Market Cap
$341,287,022.58
Other Info
Token Contract (WITH 18 Decimals)
Balance
950.904609209787908449 CRVValue
$270.16 ( ~0.102461099464534 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | WhiteBIT | CRV-USDT | $0.2829 0.0001072 Eth | $26,531,282.00 93,796,502.418 CRV | 24.4792% |
2 | Binance | CRV-USDT | $0.2823 0.0001070 Eth | $20,458,240.00 71,213,411.100 CRV | 18.5854% |
3 | BloFin | CRV-USDT | $0.2827 0.0001071 Eth | $7,223,809.00 25,058,578.500 CRV | 6.5398% |
4 | HTX | CRV-USDT | $0.2828 0.0001072 Eth | $6,379,747.00 22,061,256.860 CRV | 5.7576% |
5 | OKX | CRV-USDT | $0.2826 0.0001071 Eth | $4,639,774.00 16,167,679.310 CRV | 4.2195% |
6 | Coinbase Exchange | CRV-USD | $0.2859 0.0001080 Eth | $4,590,132.00 16,055,026.380 CRV | 4.1901% |
7 | Bybit | CRV-USDT | $0.2829 0.0001072 Eth | $3,664,156.00 12,761,576.440 CRV | 3.3305% |
8 | Gate.io | CRV-USDT | $0.2828 0.0001072 Eth | $3,328,448.00 11,665,564.790 CRV | 3.0445% |
9 | Websea | CRV-USDT | $0.2829 0.0001072 Eth | $3,022,725.00 0.000 CRV | 0.0000% |
10 | LBank | CRV-USDT | $0.2824 0.0001069 Eth | $2,455,214.00 8,695,019.930 CRV | 2.2692% |
11 | WhiteBIT | CRV-BTC | $0.2827 0.0001071 Eth | $2,235,189.00 7,907,343.700 CRV | 2.0637% |
12 | Trubit | CRV-USDT | $0.2828 0.0001071 Eth | $1,980,951.00 6,828,230.700 CRV | 1.7820% |
13 | Biconomy.com | CRV-USDT | $0.2825 0.0001071 Eth | $1,707,884.00 5,929,067.000 CRV | 1.5474% |
14 | XT.COM | CRV-USDT | $0.2827 0.0001072 Eth | $1,555,700.00 5,415,163.200 CRV | 1.4133% |
15 | Phemex | CRV-USDT | $0.283 0.0001072 Eth | $1,504,069.00 5,315,226.430 CRV | 1.3872% |
16 | Slex | CRV-USDT | $0.2829 0.0001072 Eth | $1,282,924.00 4,464,673.000 CRV | 1.1652% |
17 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.2829 0.0001072 Eth | $1,259,273.00 4,441,241.490 0XD533A949740BB3306D119CC777FA900BA034CD52 | 1.1591% |
18 | DigiFinex | CRV-USDT | $0.2826 0.0001071 Eth | $1,107,261.00 3,917,522.600 CRV | 1.0224% |
19 | Bitunix | CRV-USDT | $0.2829 0.0001072 Eth | $981,139.00 3,468,475.400 CRV | 0.9052% |
20 | Bullish | CRV-USDC | $0.2828 0.0001072 Eth | $951,906.00 3,294,832.493 CRV | 0.8599% |
21 | KuCoin | CRV-USDT | $0.2826 0.0001071 Eth | $928,706.00 3,285,789.552 CRV | 0.8575% |
22 | CoinW | CRV-USDT | $0.2827 0.0001071 Eth | $888,743.00 3,144,218.231 CRV | 0.8206% |
23 | FameEX | CRV-USDT | $0.2849 0.0001077 Eth | $827,790.00 2,877,797.492 CRV | 0.7511% |
24 | Hotcoin | CRV-USDT | $0.2832 0.0001072 Eth | $788,894.00 2,786,129.900 CRV | 0.7271% |
25 | BYDFi | CRV-USDT | $0.2829 0.0001072 Eth | $717,953.00 2,538,081.500 CRV | 0.6624% |
26 | Dex-Trade | CRV-USDT | $0.2832 0.0001073 Eth | $682,895.00 2,411,578.800 CRV | 0.6294% |
27 | Bitrue | CRV-XRP | $0.2823 0.0001069 Eth | $670,829.00 2,376,632.830 CRV | 0.6203% |
28 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2812 0.0001066 Eth | $599,047.00 2,084,282.889 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.5440% |
29 | Coinstore | CRV-USDT | $0.2828 0.0001072 Eth | $546,551.00 1,902,147.300 CRV | 0.4964% |
30 | HitBTC | CRV-USDT | $0.2829 0.0001072 Eth | $539,014.00 1,864,124.200 CRV | 0.4865% |
31 | FMFW.io | CRV-USDT | $0.283 0.0001072 Eth | $527,172.00 1,862,857.600 CRV | 0.4862% |
32 | Bitrue | CRV-USDC | $0.2829 0.0001071 Eth | $442,163.00 1,562,891.460 CRV | 0.4079% |
33 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.2839 0.0001076 Eth | $419,851.00 1,435,571.000 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.3747% |
34 | Toobit | CRV-USDT | $0.2828 0.0001072 Eth | $414,851.00 1,442,990.600 CRV | 0.3766% |
35 | Binance | CRV-USDC | $0.2825 0.0001071 Eth | $378,600.00 1,314,015.200 CRV | 0.3429% |
36 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2854 0.0001082 Eth | $374,902.00 1,286,182.009 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3357% |
37 | AscendEX (BitMax) | CRV-USDT | $0.2819 0.0001068 Eth | $369,509.00 1,310,966.300 CRV | 0.3421% |
38 | Curve (Optimism) | 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $0.2831 0.0001073 Eth | $356,154.00 363,821.079 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6 | 0.0950% |
39 | Curve (Ethereum) | 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.2849 0.0001080 Eth | $335,949.00 131.356 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | 0.0000% |
40 | PointPay | CRV-USDT | $0.283 0.0001072 Eth | $317,628.00 1,107,702.983 CRV | 0.2891% |
41 | Kraken | CRV-USD | $0.283 0.0001073 Eth | $317,332.00 1,121,312.878 CRV | 0.2926% |
42 | FMCPAY | CRV-USDT | $0.2833 0.0001073 Eth | $317,232.00 1,095,404.000 CRV | 0.2859% |
43 | MEXC | CRV-USDT | $0.2828 0.0001072 Eth | $292,542.00 1,034,595.164 CRV | 0.2700% |
44 | Bitazza | CRV-USDT | $0.2823 0.0001069 Eth | $284,143.00 982,849.600 CRV | 0.2565% |
45 | WhiteBIT | CRV-TRY | $0.2833 0.0001073 Eth | $243,664.00 859,968.000 CRV | 0.2244% |
46 | BitMart | CRV-USDT | $0.2829 0.0001072 Eth | $221,516.00 783,138.700 CRV | 0.2044% |
47 | Bitkub | CRV-THB | $0.2838 0.0001075 Eth | $201,040.00 708,504.495 CRV | 0.1849% |
48 | Binance | CRV-BTC | $0.2826 0.0001071 Eth | $199,887.00 691,261.300 CRV | 0.1804% |
49 | Tapbit | CRV-USDT | $0.2832 0.0001072 Eth | $188,102.00 654,489.500 CRV | 0.1708% |
50 | Coinbase Exchange | CRV-EUR | $0.2864 0.0001082 Eth | $179,939.00 628,238.570 CRV | 0.1640% |
51 | P2B | CRV-USD | $0.283 0.0001072 Eth | $169,466.00 598,819.880 CRV | 0.1563% |
52 | P2B | CRV-USDT | $0.283 0.0001072 Eth | $165,378.00 584,435.100 CRV | 0.1525% |
53 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2852 0.0001079 Eth | $152,712.00 524,828.810 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1370% |
54 | BTSE | CRV-USDT | $0.2831 0.0001073 Eth | $141,786.00 500,761.756 CRV | 0.1307% |
55 | BitDelta | CRV-USDT | $0.2828 0.0001072 Eth | $137,713.00 475,752.700 CRV | 0.1242% |
56 | Bitget | CRV-USDT | $0.2828 0.0001072 Eth | $137,153.00 478,166.362 CRV | 0.1248% |
57 | LocalTrade | CRV-USDT | $0.283 0.0001072 Eth | $136,437.00 482,161.090 CRV | 0.1258% |
58 | Nominex | CRV-USDT | $0.2828 0.0001071 Eth | $133,596.00 472,453.846 CRV | 0.1233% |
59 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $0.2831 0.0001073 Eth | $127,152.00 71,564.311 0X4200000000000000000000000000000000000042 | 0.0187% |
60 | Bithumb | CRV-KRW | $0.2853 0.0001081 Eth | $126,699.00 444,108.626 CRV | 0.1159% |
61 | CoinEx | CRV-USDT | $0.283 0.0001072 Eth | $103,668.00 356,171.304 CRV | 0.0930% |
62 | Fairdesk | CRV-USDT | $0.2828 0.0001071 Eth | $101,905.00 360,352.000 CRV | 0.0940% |
63 | Bitvavo | CRV-EUR | $0.2826 0.0001071 Eth | $92,883.00 328,622.089 CRV | 0.0858% |
64 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2851 0.0001080 Eth | $85,729.00 294,001.727 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0767% |
65 | WEEX | CRV-USDT | $0.2828 0.0001071 Eth | $74,606.00 258,088.000 CRV | 0.0674% |
66 | Nonkyc.io | CRV-USDT | $0.2839 0.0001076 Eth | $73,231.00 254,446.533 CRV | 0.0664% |
67 | Gemini | CRV-USD | $0.2836 0.0001075 Eth | $67,143.00 236,751.346 CRV | 0.0618% |
68 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.2837 0.0001075 Eth | $66,319.00 108,431.877 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0283% |
69 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2836 0.0001075 Eth | $59,887.00 206,853.913 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0540% |
70 | Icrypex | CRV-TRY | $0.2828 0.0001072 Eth | $59,733.00 211,187.920 CRV | 0.0551% |
71 | Crypto.com Exchange | CRV-USD | $0.2829 0.0001072 Eth | $51,719.00 182,818.200 CRV | 0.0477% |
72 | Binance | CRV-TRY | $0.2833 0.0001074 Eth | $49,277.00 170,525.700 CRV | 0.0445% |
73 | Deepcoin | CRV-USDT | $0.2829 0.0001072 Eth | $46,176.00 162,103.000 CRV | 0.0423% |
74 | Globe | CRV-USDT | $0.2827 0.0001072 Eth | $43,593.00 149,953.471 CRV | 0.0391% |
75 | Pionex | CRV-USDT | $0.2829 0.0001072 Eth | $43,223.00 149,431.774 CRV | 0.0390% |
76 | OKX | CRV-USDC | $0.2836 0.0001075 Eth | $42,865.00 150,582.415 CRV | 0.0393% |
77 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.2832 0.0001073 Eth | $38,722.00 133,316.364 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0348% |
78 | Bitfinex | CRV-USDT | $0.2831 0.0001073 Eth | $29,998.00 105,949.121 CRV | 0.0277% |
79 | Bitfinex | CRV-USD | $0.2836 0.0001075 Eth | $27,814.00 98,073.243 CRV | 0.0256% |
80 | Coinbase Exchange | CRV-GBP | $0.2854 0.0001079 Eth | $27,281.00 95,575.350 CRV | 0.0249% |
81 | LATOKEN | CRV-BTC | $0.2839 0.0001076 Eth | $27,076.00 95,379.547 CRV | 0.0249% |
82 | LATOKEN | CRV-USDT | $0.283 0.0001072 Eth | $26,084.00 92,179.634 CRV | 0.0241% |
83 | TokoCrypto | CRV-USDT | $0.2828 0.0001072 Eth | $20,246.00 71,589.028 CRV | 0.0187% |
84 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599 | $0.2859 0.0001083 Eth | $17,928.71 62,275.503 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0163% |
85 | Nonkyc.io | CRV-BTC | $0.282 0.0001069 Eth | $16,433.27 56,625.678 CRV | 0.0148% |
86 | XT.COM | CRV-BTC | $0.2826 0.0001071 Eth | $12,787.19 51,935.600 CRV | 0.0136% |
87 | Azbit | CRV-USDT | $0.2833 0.0001074 Eth | $12,740.25 44,227.656 CRV | 0.0115% |
88 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.2839 0.0001075 Eth | $8,047.03 28,333.467 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0074% |
89 | WOO X | CRV-USDT | $0.2829 0.0001072 Eth | $5,009.53 17,710.277 CRV | 0.0046% |
90 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.284 0.0001075 Eth | $3,344.50 11,330.033 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0030% |
91 | FMFW.io | CRV-BTC | $0.2828 0.0001072 Eth | $2,190.18 7,744.900 CRV | 0.0020% |
92 | MEXC | CRV-ETH | $0.2837 0.0001075 Eth | $1,252.07 4,412.915 CRV | 0.0012% |
93 | OKX | CRV-EUR | $0.2849 0.0001080 Eth | $749.55 2,624.034 CRV | 0.0007% |
94 | Gate.io | CRV-USDC | $0.2841 0.0001077 Eth | $331.37 1,185.650 CRV | 0.0003% |
95 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $0.2842 0.0001076 Eth | $106.85 368.627 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
96 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $0.2844 0.0001077 Eth | $102.28 353.974 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0001% |
97 | CEX.IO | CRV-USDT | $0.283 0.0001072 Eth | $29.88 101.621 CRV | 0.0000% |
98 | Coinmetro | CRV-EUR | $0.2829 0.0001072 Eth | $0.00 0.000 CRV | 0.0000% |
99 | Coinmetro | CRV-USDC | $0.2828 0.0001072 Eth | $0.00 0.000 CRV | 0.0000% |
100 | Coinmetro | CRV-USD | $0.2829 0.0001072 Eth | $0.00 0.000 CRV | 0.0000% |
Contract Source Code Verified (Exact Match)
Contract Name:
Vyper_contract
Compiler Version
vyper:0.2.4
Contract Source Code (Vyper language format)
# @version 0.2.4 """ @title Curve DAO Token @author Curve Finance @license MIT @notice ERC20 with piecewise-linear mining supply. @dev Based on the ERC-20 token standard as defined at https://eips.ethereum.org/EIPS/eip-20 """ from vyper.interfaces import ERC20 implements: ERC20 event Transfer: _from: indexed(address) _to: indexed(address) _value: uint256 event Approval: _owner: indexed(address) _spender: indexed(address) _value: uint256 event UpdateMiningParameters: time: uint256 rate: uint256 supply: uint256 event SetMinter: minter: address event SetAdmin: admin: address name: public(String[64]) symbol: public(String[32]) decimals: public(uint256) balanceOf: public(HashMap[address, uint256]) allowances: HashMap[address, HashMap[address, uint256]] total_supply: uint256 minter: public(address) admin: public(address) # General constants YEAR: constant(uint256) = 86400 * 365 # Allocation: # ========= # * shareholders - 30% # * emplyees - 3% # * DAO-controlled reserve - 5% # * Early users - 5% # == 43% == # left for inflation: 57% # Supply parameters INITIAL_SUPPLY: constant(uint256) = 1_303_030_303 INITIAL_RATE: constant(uint256) = 274_815_283 * 10 ** 18 / YEAR # leading to 43% premine RATE_REDUCTION_TIME: constant(uint256) = YEAR RATE_REDUCTION_COEFFICIENT: constant(uint256) = 1189207115002721024 # 2 ** (1/4) * 1e18 RATE_DENOMINATOR: constant(uint256) = 10 ** 18 INFLATION_DELAY: constant(uint256) = 86400 # Supply variables mining_epoch: public(int128) start_epoch_time: public(uint256) rate: public(uint256) start_epoch_supply: uint256 @external def __init__(_name: String[64], _symbol: String[32], _decimals: uint256): """ @notice Contract constructor @param _name Token full name @param _symbol Token symbol @param _decimals Number of decimals for token """ init_supply: uint256 = INITIAL_SUPPLY * 10 ** _decimals self.name = _name self.symbol = _symbol self.decimals = _decimals self.balanceOf[msg.sender] = init_supply self.total_supply = init_supply self.admin = msg.sender log Transfer(ZERO_ADDRESS, msg.sender, init_supply) self.start_epoch_time = block.timestamp + INFLATION_DELAY - RATE_REDUCTION_TIME self.mining_epoch = -1 self.rate = 0 self.start_epoch_supply = init_supply @internal def _update_mining_parameters(): """ @dev Update mining rate and supply at the start of the epoch Any modifying mining call must also call this """ _rate: uint256 = self.rate _start_epoch_supply: uint256 = self.start_epoch_supply self.start_epoch_time += RATE_REDUCTION_TIME self.mining_epoch += 1 if _rate == 0: _rate = INITIAL_RATE else: _start_epoch_supply += _rate * RATE_REDUCTION_TIME self.start_epoch_supply = _start_epoch_supply _rate = _rate * RATE_DENOMINATOR / RATE_REDUCTION_COEFFICIENT self.rate = _rate log UpdateMiningParameters(block.timestamp, _rate, _start_epoch_supply) @external def update_mining_parameters(): """ @notice Update mining rate and supply at the start of the epoch @dev Callable by any address, but only once per epoch Total supply becomes slightly larger if this function is called late """ assert block.timestamp >= self.start_epoch_time + RATE_REDUCTION_TIME # dev: too soon! self._update_mining_parameters() @external def start_epoch_time_write() -> uint256: """ @notice Get timestamp of the current mining epoch start while simultaneously updating mining parameters @return Timestamp of the epoch """ _start_epoch_time: uint256 = self.start_epoch_time if block.timestamp >= _start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() return self.start_epoch_time else: return _start_epoch_time @external def future_epoch_time_write() -> uint256: """ @notice Get timestamp of the next mining epoch start while simultaneously updating mining parameters @return Timestamp of the next epoch """ _start_epoch_time: uint256 = self.start_epoch_time if block.timestamp >= _start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() return self.start_epoch_time + RATE_REDUCTION_TIME else: return _start_epoch_time + RATE_REDUCTION_TIME @internal @view def _available_supply() -> uint256: return self.start_epoch_supply + (block.timestamp - self.start_epoch_time) * self.rate @external @view def available_supply() -> uint256: """ @notice Current number of tokens in existence (claimed or unclaimed) """ return self._available_supply() @external @view def mintable_in_timeframe(start: uint256, end: uint256) -> uint256: """ @notice How much supply is mintable from start timestamp till end timestamp @param start Start of the time interval (timestamp) @param end End of the time interval (timestamp) @return Tokens mintable from `start` till `end` """ assert start <= end # dev: start > end to_mint: uint256 = 0 current_epoch_time: uint256 = self.start_epoch_time current_rate: uint256 = self.rate # Special case if end is in future (not yet minted) epoch if end > current_epoch_time + RATE_REDUCTION_TIME: current_epoch_time += RATE_REDUCTION_TIME current_rate = current_rate * RATE_DENOMINATOR / RATE_REDUCTION_COEFFICIENT assert end <= current_epoch_time + RATE_REDUCTION_TIME # dev: too far in future for i in range(999): # Curve will not work in 1000 years. Darn! if end >= current_epoch_time: current_end: uint256 = end if current_end > current_epoch_time + RATE_REDUCTION_TIME: current_end = current_epoch_time + RATE_REDUCTION_TIME current_start: uint256 = start if current_start >= current_epoch_time + RATE_REDUCTION_TIME: break # We should never get here but what if... elif current_start < current_epoch_time: current_start = current_epoch_time to_mint += current_rate * (current_end - current_start) if start >= current_epoch_time: break current_epoch_time -= RATE_REDUCTION_TIME current_rate = current_rate * RATE_REDUCTION_COEFFICIENT / RATE_DENOMINATOR # double-division with rounding made rate a bit less => good assert current_rate <= INITIAL_RATE # This should never happen return to_mint @external def set_minter(_minter: address): """ @notice Set the minter address @dev Only callable once, when minter has not yet been set @param _minter Address of the minter """ assert msg.sender == self.admin # dev: admin only assert self.minter == ZERO_ADDRESS # dev: can set the minter only once, at creation self.minter = _minter log SetMinter(_minter) @external def set_admin(_admin: address): """ @notice Set the new admin. @dev After all is set up, admin only can change the token name @param _admin New admin address """ assert msg.sender == self.admin # dev: admin only self.admin = _admin log SetAdmin(_admin) @external @view def totalSupply() -> uint256: """ @notice Total number of tokens in existence. """ return self.total_supply @external @view def allowance(_owner : address, _spender : address) -> uint256: """ @notice Check the amount of tokens that an owner allowed to a spender @param _owner The address which owns the funds @param _spender The address which will spend the funds @return uint256 specifying the amount of tokens still available for the spender """ return self.allowances[_owner][_spender] @external def transfer(_to : address, _value : uint256) -> bool: """ @notice Transfer `_value` tokens from `msg.sender` to `_to` @dev Vyper does not allow underflows, so the subtraction in this function will revert on an insufficient balance @param _to The address to transfer to @param _value The amount to be transferred @return bool success """ assert _to != ZERO_ADDRESS # dev: transfers to 0x0 are not allowed self.balanceOf[msg.sender] -= _value self.balanceOf[_to] += _value log Transfer(msg.sender, _to, _value) return True @external def transferFrom(_from : address, _to : address, _value : uint256) -> bool: """ @notice Transfer `_value` tokens from `_from` to `_to` @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 @return bool success """ assert _to != ZERO_ADDRESS # dev: transfers to 0x0 are not allowed # NOTE: vyper does not allow underflows # so the following subtraction would revert on insufficient balance self.balanceOf[_from] -= _value self.balanceOf[_to] += _value self.allowances[_from][msg.sender] -= _value log Transfer(_from, _to, _value) return True @external def approve(_spender : address, _value : uint256) -> bool: """ @notice Approve `_spender` to transfer `_value` tokens on behalf of `msg.sender` @dev Approval may only be from zero -> nonzero or from nonzero -> zero in order to mitigate the potential race condition described here: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 @param _spender The address which will spend the funds @param _value The amount of tokens to be spent @return bool success """ assert _value == 0 or self.allowances[msg.sender][_spender] == 0 self.allowances[msg.sender][_spender] = _value log Approval(msg.sender, _spender, _value) return True @external def mint(_to: address, _value: uint256) -> bool: """ @notice Mint `_value` tokens and assign them to `_to` @dev Emits a Transfer event originating from 0x00 @param _to The account that will receive the created tokens @param _value The amount that will be created @return bool success """ assert msg.sender == self.minter # dev: minter only assert _to != ZERO_ADDRESS # dev: zero address if block.timestamp >= self.start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() _total_supply: uint256 = self.total_supply + _value assert _total_supply <= self._available_supply() # dev: exceeds allowable mint amount self.total_supply = _total_supply self.balanceOf[_to] += _value log Transfer(ZERO_ADDRESS, _to, _value) return True @external def burn(_value: uint256) -> bool: """ @notice Burn `_value` tokens belonging to `msg.sender` @dev Emits a Transfer event with a destination of 0x00 @param _value The amount that will be burned @return bool success """ self.balanceOf[msg.sender] -= _value self.total_supply -= _value log Transfer(msg.sender, ZERO_ADDRESS, _value) return True @external def set_name(_name: String[64], _symbol: String[32]): """ @notice Change the token name and symbol to `_name` and `_symbol` @dev Only callable by the admin account @param _name New token name @param _symbol New token symbol """ assert msg.sender == self.admin, "Only admin is allowed to change name" self.name = _name self.symbol = _symbol
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"name":"Transfer","inputs":[{"type":"address","name":"_from","indexed":true},{"type":"address","name":"_to","indexed":true},{"type":"uint256","name":"_value","indexed":false}],"anonymous":false,"type":"event"},{"name":"Approval","inputs":[{"type":"address","name":"_owner","indexed":true},{"type":"address","name":"_spender","indexed":true},{"type":"uint256","name":"_value","indexed":false}],"anonymous":false,"type":"event"},{"name":"UpdateMiningParameters","inputs":[{"type":"uint256","name":"time","indexed":false},{"type":"uint256","name":"rate","indexed":false},{"type":"uint256","name":"supply","indexed":false}],"anonymous":false,"type":"event"},{"name":"SetMinter","inputs":[{"type":"address","name":"minter","indexed":false}],"anonymous":false,"type":"event"},{"name":"SetAdmin","inputs":[{"type":"address","name":"admin","indexed":false}],"anonymous":false,"type":"event"},{"outputs":[],"inputs":[{"type":"string","name":"_name"},{"type":"string","name":"_symbol"},{"type":"uint256","name":"_decimals"}],"stateMutability":"nonpayable","type":"constructor"},{"name":"update_mining_parameters","outputs":[],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":148748},{"name":"start_epoch_time_write","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":149603},{"name":"future_epoch_time_write","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":149806},{"name":"available_supply","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":4018},{"name":"mintable_in_timeframe","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"uint256","name":"start"},{"type":"uint256","name":"end"}],"stateMutability":"view","type":"function","gas":2216141},{"name":"set_minter","outputs":[],"inputs":[{"type":"address","name":"_minter"}],"stateMutability":"nonpayable","type":"function","gas":38698},{"name":"set_admin","outputs":[],"inputs":[{"type":"address","name":"_admin"}],"stateMutability":"nonpayable","type":"function","gas":37837},{"name":"totalSupply","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1421},{"name":"allowance","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"_owner"},{"type":"address","name":"_spender"}],"stateMutability":"view","type":"function","gas":1759},{"name":"transfer","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"_to"},{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":75139},{"name":"transferFrom","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"_from"},{"type":"address","name":"_to"},{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":111433},{"name":"approve","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"_spender"},{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":39288},{"name":"mint","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"_to"},{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":228030},{"name":"burn","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":74999},{"name":"set_name","outputs":[],"inputs":[{"type":"string","name":"_name"},{"type":"string","name":"_symbol"}],"stateMutability":"nonpayable","type":"function","gas":178270},{"name":"name","outputs":[{"type":"string","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":8063},{"name":"symbol","outputs":[{"type":"string","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":7116},{"name":"decimals","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1721},{"name":"balanceOf","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"arg0"}],"stateMutability":"view","type":"function","gas":1905},{"name":"minter","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1781},{"name":"admin","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1811},{"name":"mining_epoch","outputs":[{"type":"int128","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1841},{"name":"start_epoch_time","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1871},{"name":"rate","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1901}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000f43757276652044414f20546f6b656e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034352560000000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : _name (string): Curve DAO Token
Arg [1] : _symbol (string): CRV
Arg [2] : _decimals (uint256): 18
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000012
Arg [3] : 000000000000000000000000000000000000000000000000000000000000000f
Arg [4] : 43757276652044414f20546f6b656e0000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [6] : 4352560000000000000000000000000000000000000000000000000000000000
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