Overview
Max Total Supply
2,145,326,312.065058401455811347 CRV
Holders
86,667 (0.00%)
Market
Price
$0.29 @ 0.000083 ETH (-3.20%)
Onchain Market Cap
$613,056,721.37
Circulating Supply Market Cap
$339,407,331.31
Other Info
Token Contract (WITH 18 Decimals)
Balance
411.324297310485713441 CRVValue
$117.54 ( ~0.0343333638679978 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | CRV-USDT | $0.288 0.0000843 Eth | $13,650,816.00 47,082,052.045 CRV | 17.4200% |
2 | ![]() | CRV-USDT | $0.2878 0.0000842 Eth | $12,709,019.00 43,840,600.100 CRV | 16.2207% |
3 | ![]() | CRV-USDT | $0.2881 0.0000843 Eth | $5,931,144.00 20,434,329.535 CRV | 7.5606% |
4 | ![]() | CRV-USDT | $0.2868 0.0000838 Eth | $4,525,776.00 15,782,708.041 CRV | 5.8395% |
5 | ![]() | CRV-USDT | $0.2871 0.0000840 Eth | $4,064,924.00 14,018,870.300 CRV | 5.1869% |
6 | ![]() | CRV-USDT | $0.288 0.0000843 Eth | $3,336,022.00 11,486,739.930 CRV | 4.2500% |
7 | ![]() | CRV-USDT | $0.2879 0.0000842 Eth | $3,152,202.00 10,947,552.800 CRV | 4.0505% |
8 | ![]() | CRV-USDT | $0.2872 0.0000841 Eth | $3,052,486.00 10,530,115.800 CRV | 3.8961% |
9 | ![]() | CRV-USDT | $0.2886 0.0000843 Eth | $2,654,853.00 9,141,397.150 CRV | 3.3822% |
10 | ![]() | CRV-USDT | $0.2877 0.0000842 Eth | $2,617,186.00 9,037,622.500 CRV | 3.3439% |
11 | ![]() | CRV-USDT | $0.2868 0.0000839 Eth | $2,587,556.00 9,022,547.500 CRV | 3.3383% |
12 | ![]() | CRV-USDT | $0.2869 0.0000839 Eth | $1,836,060.00 0.000 CRV | 0.0000% |
13 | ![]() | CRV-USDT | $0.2881 0.0000843 Eth | $1,691,460.00 5,825,846.000 CRV | 2.1555% |
14 | ![]() | CRV-USD | $0.2879 0.0000842 Eth | $1,628,271.00 5,655,682.310 CRV | 2.0926% |
15 | ![]() | CRV-USDT | $0.2879 0.0000842 Eth | $1,004,411.00 3,488,566.320 CRV | 1.2907% |
16 | ![]() | CRV-USDT | $0.2873 0.0000841 Eth | $849,537.00 2,930,738.000 CRV | 1.0844% |
17 | ![]() | CRV-USDT | $0.2874 0.0000841 Eth | $839,456.00 2,900,361.500 CRV | 1.0731% |
18 | ![]() | CRV-USDT | $0.2871 0.0000840 Eth | $826,571.00 2,879,348.900 CRV | 1.0653% |
19 | ![]() | CRV-USDT | $0.2882 0.0000842 Eth | $810,825.00 2,813,252.800 CRV | 1.0409% |
20 | ![]() | CRV-USDT | $0.2881 0.0000843 Eth | $810,041.00 2,811,519.092 CRV | 1.0402% |
21 | ![]() | CRV-USDT | $0.289 0.0000845 Eth | $809,957.00 2,802,472.374 CRV | 1.0369% |
22 | ![]() | CRV-USDT | $0.287 0.0000840 Eth | $703,434.00 2,449,958.900 CRV | 0.9065% |
23 | ![]() | CRV-USDT | $0.2877 0.0000842 Eth | $691,911.00 2,377,685.100 CRV | 0.8797% |
24 | ![]() | CRV-USDT | $0.287 0.0000840 Eth | $641,281.00 2,209,355.740 CRV | 0.8174% |
25 | ![]() | CRV-USDT | $0.2869 0.0000840 Eth | $506,803.00 1,749,403.896 CRV | 0.6473% |
26 | ![]() | CRV-USDT | $0.2871 0.0000840 Eth | $492,381.00 1,715,046.600 CRV | 0.6346% |
27 | ![]() | CRV-EUR | $0.2865 0.0000838 Eth | $441,869.00 1,542,353.304 CRV | 0.5707% |
28 | ![]() | CRV-XRP | $0.2897 0.0000847 Eth | $432,521.00 1,492,829.570 CRV | 0.5523% |
29 | ![]() | CRV-USDC | $0.2869 0.0000840 Eth | $358,743.00 1,250,226.310 CRV | 0.4626% |
30 | ![]() | CRV-USDT | $0.2889 0.0000845 Eth | $341,362.00 1,181,530.700 CRV | 0.4372% |
31 | ![]() | CRV-USDT | $0.2862 0.0000837 Eth | $336,793.00 1,161,106.300 CRV | 0.4296% |
32 | ![]() | CRV-USDT | $0.2871 0.0000840 Eth | $329,480.00 1,147,439.930 CRV | 0.4245% |
33 | ![]() | 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.285 0.0000833 Eth | $314,576.00 92.785 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | 0.0000% |
34 | ![]() | CRV-TRY | $0.2885 0.0000844 Eth | $309,268.00 1,072,084.800 CRV | 0.3967% |
35 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.2871 0.0000840 Eth | $262,035.00 910,522.720 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3369% |
36 | ![]() | 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.285 0.0000833 Eth | $259,147.00 265,524.427 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E | 0.0982% |
37 | ![]() | CRV-TRY | $0.2857 0.0000836 Eth | $257,880.00 902,585.750 CRV | 0.3340% |
38 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2859 0.0000836 Eth | $247,989.00 866,087.494 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3204% |
39 | ![]() | CRV-USDT | $0.2882 0.0000843 Eth | $245,026.00 846,837.600 CRV | 0.3133% |
40 | ![]() | CRV-USDT | $0.2874 0.0000841 Eth | $205,260.00 708,740.121 CRV | 0.2622% |
41 | ![]() | CRV-TRY | $0.2878 0.0000841 Eth | $201,915.00 693,553.500 CRV | 0.2566% |
42 | ![]() | CRV-USDT | $0.2883 0.0000843 Eth | $199,954.00 688,915.865 CRV | 0.2549% |
43 | ![]() | CRV-THB | $0.2852 0.0000835 Eth | $163,580.00 573,563.894 CRV | 0.2122% |
44 | ![]() | CRV-USDT | $0.2874 0.0000841 Eth | $158,300.00 550,767.100 CRV | 0.2038% |
45 | ![]() | CRV-USDT | $0.2878 0.0000842 Eth | $156,200.00 539,103.751 CRV | 0.1995% |
46 | ![]() | CRV-KRW | $0.2907 0.0000850 Eth | $154,005.00 529,773.944 CRV | 0.1960% |
47 | ![]() | CRV-BTC | $0.2875 0.0000840 Eth | $149,042.00 516,412.300 CRV | 0.1911% |
48 | ![]() | CRV-USDC | $0.2874 0.0000841 Eth | $142,217.00 489,191.810 CRV | 0.1810% |
49 | ![]() | CRV-USD | $0.287 0.0000840 Eth | $138,735.00 483,396.101 CRV | 0.1789% |
50 | ![]() | CRV-USDT | $0.2877 0.0000842 Eth | $137,776.00 478,961.100 CRV | 0.1772% |
51 | ![]() | CRV-USDT | $0.287 0.0000840 Eth | $130,301.00 453,940.055 CRV | 0.1680% |
52 | ![]() | CRV-USDT | $0.2872 0.0000840 Eth | $128,361.00 442,406.200 CRV | 0.1637% |
53 | ![]() | CRV-USDT | $0.287 0.0000839 Eth | $124,156.00 428,962.200 CRV | 0.1587% |
54 | ![]() | CRV-USDT | $0.2879 0.0000841 Eth | $106,536.00 367,236.401 CRV | 0.1359% |
55 | ![]() | CRV-USDT | $0.287 0.0000840 Eth | $106,055.00 369,474.700 CRV | 0.1367% |
56 | ![]() | CRV-USDC | $0.2865 0.0000839 Eth | $97,116.00 332,958.800 CRV | 0.1232% |
57 | ![]() | CRV-USDT | $0.2871 0.0000840 Eth | $92,287.00 316,775.938 CRV | 0.1172% |
58 | ![]() | CRV-USD | $0.287 0.0000840 Eth | $92,149.00 321,077.300 CRV | 0.1188% |
59 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2876 0.0000843 Eth | $90,253.00 308,324.570 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1141% |
60 | ![]() | CRV-USDT | $0.2879 0.0000843 Eth | $85,535.00 295,196.200 CRV | 0.1092% |
61 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.2875 0.0000840 Eth | $80,997.00 282,550.678 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.1045% |
62 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2873 0.0000840 Eth | $75,751.00 261,978.518 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0969% |
63 | ![]() | CRV-USDT | $0.287 0.0000840 Eth | $65,759.00 229,090.771 CRV | 0.0848% |
64 | ![]() | CRV-EUR | $0.2854 0.0000835 Eth | $64,647.00 226,480.300 CRV | 0.0838% |
65 | ![]() | CRV-USD | $0.286 0.0000837 Eth | $63,222.00 221,057.280 CRV | 0.0818% |
66 | ![]() | CRV-EUR | $0.2854 0.0000835 Eth | $62,989.00 221,950.694 CRV | 0.0821% |
67 | ![]() | CRV-TRY | $0.2855 0.0000837 Eth | $56,830.00 199,025.195 CRV | 0.0736% |
68 | ![]() | CRV-BTC | $0.2839 0.0000831 Eth | $51,435.00 181,157.000 CRV | 0.0670% |
69 | ![]() | CRV-BTC | $0.2881 0.0000842 Eth | $46,723.00 162,032.324 CRV | 0.0600% |
70 | ![]() | CRV-USDT | $0.2893 0.0000845 Eth | $46,711.00 161,475.415 CRV | 0.0597% |
71 | ![]() | CRV-USDT | $0.2883 0.0000843 Eth | $46,012.00 162,259.200 CRV | 0.0600% |
72 | ![]() | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.2862 0.0000837 Eth | $42,983.00 149,451.424 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0553% |
73 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.286 0.0000836 Eth | $42,181.00 147,094.580 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0544% |
74 | ![]() | CRV-USDT | $0.2884 0.0000843 Eth | $30,980.00 107,414.053 CRV | 0.0397% |
75 | ![]() | CRV-USD | $0.2841 0.0000832 Eth | $29,285.00 103,078.197 CRV | 0.0381% |
76 | ![]() | CRV-EUR | $0.2853 0.0000835 Eth | $28,541.00 100,027.180 CRV | 0.0370% |
77 | ![]() | CRV-ETH | $0.2872 0.0000840 Eth | $22,439.00 78,123.057 CRV | 0.0289% |
78 | ![]() | CRV-BTC | $0.2862 0.0000836 Eth | $22,246.00 77,738.819 CRV | 0.0288% |
79 | ![]() | CRV-USDT | $0.2873 0.0000840 Eth | $21,363.00 74,344.375 CRV | 0.0275% |
80 | ![]() | CRV-USDC | $0.2864 0.0000838 Eth | $18,340.89 62,764.275 CRV | 0.0232% |
81 | ![]() | CRV-GBP | $0.2857 0.0000836 Eth | $17,599.38 61,607.040 CRV | 0.0228% |
82 | ![]() | CRV-USD | $0.286 0.0000837 Eth | $15,434.06 53,965.256 CRV | 0.0200% |
83 | ![]() | CRV-BTC | $0.2852 0.0000834 Eth | $15,105.72 52,287.587 CRV | 0.0193% |
84 | ![]() | CRV-BTC | $0.2839 0.0000831 Eth | $15,082.01 53,118.660 CRV | 0.0197% |
85 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.2885 0.0000844 Eth | $15,051.37 52,203.787 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0193% |
86 | ![]() | CRV-TRY | $0.2879 0.0000841 Eth | $14,006.89 48,441.790 CRV | 0.0179% |
87 | ![]() | CRV-USDT | $0.2874 0.0000841 Eth | $13,060.59 45,094.900 CRV | 0.0167% |
88 | ![]() | CRV-BTC | $0.2872 0.0000840 Eth | $12,905.67 53,481.900 CRV | 0.0198% |
89 | ![]() | CRV-ETH | $0.2875 0.0000841 Eth | $9,423.33 32,820.190 CRV | 0.0121% |
90 | ![]() | CRV-BTC | $0.2865 0.0000838 Eth | $9,017.71 31,316.703 CRV | 0.0116% |
91 | ![]() | CRV-USDT | $0.2875 0.0000841 Eth | $8,520.62 29,633.143 CRV | 0.0110% |
92 | ![]() | CRV-THB | $0.2862 0.0000836 Eth | $5,466.87 18,727.200 CRV | 0.0069% |
93 | ![]() | CRV-USDT | $0.2873 0.0000840 Eth | $5,391.68 18,767.036 CRV | 0.0069% |
94 | ![]() | CRV-IDR | $0.2874 0.0000841 Eth | $4,864.12 16,924.990 CRV | 0.0063% |
95 | ![]() | CRV-EUR | $0.2877 0.0000843 Eth | $4,444.85 15,450.183 CRV | 0.0057% |
96 | ![]() | CRV-BTC | $0.2871 0.0000840 Eth | $4,215.33 14,681.000 CRV | 0.0054% |
97 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2856 0.0000835 Eth | $808.24 2,810.515 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0010% |
98 | ![]() | CRV-BTC | $0.2852 0.0000834 Eth | $656.89 2,303.093 CRV | 0.0009% |
99 | ![]() | CRV-BRL | $0.2883 0.0000842 Eth | $221.10 755.357 CRV | 0.0003% |
100 | ![]() | CRV-USDT | $0.287 0.0000839 Eth | $135.01 470.503 CRV | 0.0002% |
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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