Overview
Max Total Supply
2,163,594,834.137983805024238915 CRV
Holders
87,827 ( -0.006%)
Market
Price
$0.29 @ 0.000115 ETH (-3.62%)
Onchain Market Cap
$627,706,038.13
Circulating Supply Market Cap
$338,583,971.27
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.000000000000000001 CRVValue
$0.00 ( ~0 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | CRV-USDT | $0.2899 0.0001154 Eth | $20,881,361.00 71,583,011.500 CRV | 28.2022% |
2 | ![]() | CRV-USDT | $0.29 0.0001153 Eth | $8,146,556.00 27,936,980.100 CRV | 11.0066% |
3 | ![]() | CRV-USDT | $0.29 0.0001155 Eth | $4,966,104.00 17,064,811.473 CRV | 6.7232% |
4 | ![]() | CRV-USDT | $0.2902 0.0001155 Eth | $3,889,599.00 13,338,143.720 CRV | 5.2549% |
5 | ![]() | CRV-USDT | $0.2894 0.0001153 Eth | $3,012,395.00 10,356,906.754 CRV | 4.0804% |
6 | ![]() | CRV-USDT | $0.2899 0.0001154 Eth | $2,972,620.00 10,265,428.920 CRV | 4.0444% |
7 | ![]() | CRV-USDT | $0.2896 0.0001152 Eth | $2,880,166.00 9,944,813.178 CRV | 3.9180% |
8 | ![]() | CRV-USDT | $0.2899 0.0001153 Eth | $2,749,841.00 9,486,681.930 CRV | 3.7375% |
9 | ![]() | CRV-USDT | $0.2902 0.0001154 Eth | $2,671,925.00 9,207,271.800 CRV | 3.6275% |
10 | ![]() | CRV-USD | $0.2899 0.0001155 Eth | $1,990,938.00 6,867,670.580 CRV | 2.7057% |
11 | ![]() | CRV-USDT | $0.2898 0.0001153 Eth | $1,887,972.00 6,456,114.800 CRV | 2.5436% |
12 | ![]() | CRV-USDT | $0.2902 0.0001154 Eth | $1,675,853.00 5,745,564.000 CRV | 2.2636% |
13 | ![]() | CRV-USDT | $0.2898 0.0001153 Eth | $1,554,107.00 5,362,000.560 CRV | 2.1125% |
14 | ![]() | CRV-USDT | $0.2897 0.0001154 Eth | $1,378,408.00 4,725,750.200 CRV | 1.8618% |
15 | ![]() | CRV-USDT | $0.2902 0.0001154 Eth | $1,274,348.00 4,391,412.600 CRV | 1.7301% |
16 | ![]() | CRV-USDT | $0.2898 0.0001154 Eth | $1,056,908.00 3,647,462.500 CRV | 1.4370% |
17 | ![]() | CRV-USDT | $0.2899 0.0001154 Eth | $841,262.00 2,902,217.688 CRV | 1.1434% |
18 | ![]() | CRV-USDT | $0.2898 0.0001153 Eth | $830,663.00 2,849,740.888 CRV | 1.1227% |
19 | ![]() | CRV-USD | $0.29 0.0001155 Eth | $805,807.00 2,778,646.210 CRV | 1.0947% |
20 | ![]() | CRV-USDT | $0.2901 0.0001154 Eth | $759,791.00 2,619,176.000 CRV | 1.0319% |
21 | ![]() | CRV-USDT | $0.2898 0.0001153 Eth | $715,211.00 2,467,794.000 CRV | 0.9723% |
22 | ![]() | CRV-USDT | $0.2898 0.0001154 Eth | $550,193.00 1,898,754.100 CRV | 0.7481% |
23 | ![]() | CRV-USDT | $0.29 0.0001154 Eth | $435,634.00 1,499,127.700 CRV | 0.5906% |
24 | ![]() | CRV-USDC | $0.2906 0.0001155 Eth | $390,162.00 1,338,264.200 CRV | 0.5272% |
25 | ![]() | CRV-USDT | $0.2901 0.0001155 Eth | $351,252.00 1,210,941.600 CRV | 0.4771% |
26 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2876 0.0001144 Eth | $345,965.00 1,199,574.041 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.4726% |
27 | ![]() | 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $0.2877 0.0001145 Eth | $311,874.00 317,080.861 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6 | 0.1249% |
28 | ![]() | CRV-USDT | $0.2898 0.0001154 Eth | $301,046.00 1,033,787.254 CRV | 0.4073% |
29 | ![]() | CRV-USDT | $0.2909 0.0001157 Eth | $278,403.00 960,597.100 CRV | 0.3785% |
30 | ![]() | CRV-USDT | $0.2911 0.0001158 Eth | $252,127.00 864,258.200 CRV | 0.3405% |
31 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.2891 0.0001152 Eth | $239,546.00 834,353.549 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.3287% |
32 | ![]() | CRV-USDT | $0.2898 0.0001154 Eth | $238,122.00 821,725.200 CRV | 0.3237% |
33 | ![]() | CRV-USDT | $0.2897 0.0001153 Eth | $237,869.00 817,536.989 CRV | 0.3221% |
34 | ![]() | CRV-USDT | $0.2897 0.0001154 Eth | $220,027.00 763,662.960 CRV | 0.3009% |
35 | ![]() | CRV-BTC | $0.29 0.0001155 Eth | $210,131.00 726,381.500 CRV | 0.2862% |
36 | ![]() | CRV-USDT | $0.29 0.0001153 Eth | $197,138.00 676,481.600 CRV | 0.2665% |
37 | ![]() | CRV-THB | $0.2902 0.0001154 Eth | $169,764.00 585,082.165 CRV | 0.2305% |
38 | ![]() | CRV-USDT | $0.289 0.0001150 Eth | $166,824.00 577,204.100 CRV | 0.2274% |
39 | ![]() | CRV-USD | $0.29 0.0001153 Eth | $162,738.00 561,164.870 CRV | 0.2211% |
40 | ![]() | 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.2909 0.0001158 Eth | $140,852.00 141,809.775 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5 | 0.0559% |
41 | ![]() | CRV-USDC | $0.2926 0.0001165 Eth | $136,213.00 467,119.820 CRV | 0.1840% |
42 | ![]() | CRV-USDT | $0.2894 0.0001153 Eth | $132,189.00 453,854.800 CRV | 0.1788% |
43 | ![]() | CRV-USDT | $0.29 0.0001154 Eth | $130,213.00 448,948.232 CRV | 0.1769% |
44 | ![]() | CRV-EUR | $0.2905 0.0001156 Eth | $124,196.00 427,566.063 CRV | 0.1685% |
45 | ![]() | CRV-USDT | $0.2898 0.0001154 Eth | $122,986.00 424,431.696 CRV | 0.1672% |
46 | ![]() | CRV-USDT | $0.2899 0.0001153 Eth | $117,935.00 406,748.767 CRV | 0.1603% |
47 | ![]() | CRV-USDT | $0.2901 0.0001154 Eth | $101,452.00 349,757.000 CRV | 0.1378% |
48 | ![]() | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.2909 0.0001158 Eth | $100,728.00 195,100.562 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0769% |
49 | ![]() | CRV-BTC | $0.2897 0.0001152 Eth | $94,754.00 327,067.900 CRV | 0.1289% |
50 | ![]() | CRV-TRY | $0.2912 0.0001159 Eth | $87,571.00 300,716.090 CRV | 0.1185% |
51 | ![]() | 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.2908 0.0001158 Eth | $72,640.00 72,760.062 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E | 0.0287% |
52 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2895 0.0001153 Eth | $68,293.00 237,301.233 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0935% |
53 | ![]() | CRV-USD | $0.2906 0.0001157 Eth | $64,650.00 222,472.212 CRV | 0.0876% |
54 | ![]() | CRV-TRY | $0.293 0.0001165 Eth | $59,089.00 199,936.300 CRV | 0.0788% |
55 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.2895 0.0001153 Eth | $57,142.00 198,406.448 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0782% |
56 | ![]() | CRV-TRY | $0.2915 0.0001159 Eth | $57,082.00 195,809.654 CRV | 0.0771% |
57 | ![]() | CRV-USDT | $0.29 0.0001153 Eth | $52,779.00 181,994.239 CRV | 0.0717% |
58 | ![]() | CRV-USDT | $0.2897 0.0001154 Eth | $50,749.00 174,006.000 CRV | 0.0686% |
59 | ![]() | CRV-USDT | $0.29 0.0001153 Eth | $46,141.00 161,676.000 CRV | 0.0637% |
60 | ![]() | CRV-BTC | $0.29 0.0001155 Eth | $42,999.00 147,977.073 CRV | 0.0583% |
61 | ![]() | CRV-BTC | $0.2912 0.0001160 Eth | $42,880.00 147,261.400 CRV | 0.0580% |
62 | ![]() | CRV-EUR | $0.2902 0.0001156 Eth | $31,422.00 108,284.210 CRV | 0.0427% |
63 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.291 0.0001159 Eth | $30,731.00 106,327.705 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0419% |
64 | ![]() | CRV-USDT | $0.2899 0.0001153 Eth | $27,360.00 94,371.165 CRV | 0.0372% |
65 | ![]() | CRV-BTC | $0.2905 0.0001155 Eth | $24,164.00 83,185.000 CRV | 0.0328% |
66 | ![]() | CRV-USDT | $0.29 0.0001153 Eth | $19,189.53 65,846.007 CRV | 0.0259% |
67 | ![]() | CRV-BTC | $0.2905 0.0001155 Eth | $17,857.89 73,322.900 CRV | 0.0289% |
68 | ![]() | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.2898 0.0001153 Eth | $17,651.07 61,318.965 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0242% |
69 | ![]() | CRV-USDC | $0.2916 0.0001161 Eth | $16,906.25 58,017.851 CRV | 0.0229% |
70 | ![]() | CRV-EUR | $0.2893 0.0001152 Eth | $16,271.94 56,246.360 CRV | 0.0222% |
71 | ![]() | CRV-BTC | $0.2905 0.0001155 Eth | $14,315.08 49,278.626 CRV | 0.0194% |
72 | ![]() | CRV-USDT | $0.2901 0.0001154 Eth | $14,306.77 48,981.126 CRV | 0.0193% |
73 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XFCC5C47BE19D06BF83EB04298B026F81069FF65B | $0.2895 0.0001153 Eth | $13,867.76 48,018.008 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0189% |
74 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.2908 0.0001158 Eth | $13,136.97 45,267.214 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0178% |
75 | ![]() | CRV-THB | $0.2894 0.0001151 Eth | $11,324.55 38,331.100 CRV | 0.0151% |
76 | ![]() | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.2902 0.0001154 Eth | $9,671.55 4,549.105 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0018% |
77 | ![]() | CRV-BTC | $0.2906 0.0001157 Eth | $9,376.37 32,267.780 CRV | 0.0127% |
78 | ![]() | CRV-GBP | $0.2919 0.0001162 Eth | $9,109.13 31,207.360 CRV | 0.0123% |
79 | ![]() | CRV-USDT | $0.2896 0.0001152 Eth | $9,061.25 31,292.904 CRV | 0.0123% |
80 | ![]() | CRV-EUR | $0.2904 0.0001154 Eth | $6,278.68 21,621.564 CRV | 0.0085% |
81 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2905 0.0001157 Eth | $6,046.60 21,041.550 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0083% |
82 | ![]() | CRV-USD | $0.2929 0.0001167 Eth | $6,021.98 20,557.758 CRV | 0.0081% |
83 | ![]() | CRV-USDT | $0.2898 0.0001152 Eth | $4,923.78 16,861.544 CRV | 0.0066% |
84 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.2913 0.0001159 Eth | $4,817.84 16,988.090 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0067% |
85 | ![]() | CRV-IDR | $0.2909 0.0001159 Eth | $4,629.60 15,912.417 CRV | 0.0063% |
86 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2912 0.0001160 Eth | $4,230.54 14,599.051 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0058% |
87 | ![]() | CRV-USDT | $0.2894 0.0001152 Eth | $4,197.92 14,479.400 CRV | 0.0057% |
88 | ![]() | CRV-USD | $0.2898 0.0001153 Eth | $3,560.54 12,287.481 CRV | 0.0048% |
89 | ![]() | CRV-BTC | $0.2898 0.0001152 Eth | $3,546.96 12,241.400 CRV | 0.0048% |
90 | ![]() | CRV-BTC | $0.2898 0.0001153 Eth | $2,924.30 10,022.571 CRV | 0.0039% |
91 | ![]() | CRV-XBT | $0.2912 0.0001160 Eth | $2,828.71 9,714.832 CRV | 0.0038% |
92 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.29 0.0001154 Eth | $2,768.42 9,570.964 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0038% |
93 | ![]() | CRV-ETH | $0.2894 0.0001153 Eth | $1,765.39 6,137.550 CRV | 0.0024% |
94 | ![]() | CRV-BTC | $0.2876 0.0001143 Eth | $1,405.22 4,855.056 CRV | 0.0019% |
95 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.2908 0.0001157 Eth | $1,315.43 4,582.282 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0018% |
96 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.2909 0.0001156 Eth | $755.99 2,577.739 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0010% |
97 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.291 0.0001156 Eth | $616.40 2,129.778 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0008% |
98 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2905 0.0001155 Eth | $418.42 1,444.806 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0006% |
99 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.292 0.0001159 Eth | $209.54 728.382 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0003% |
100 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $0.2913 0.0001153 Eth | $96.89 334.683 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0001% |
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
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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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