Overview
Max Total Supply
2,165,628,546.025199396165037377 CRV
Holders
87,893 ( 0.027%)
Market
Price
$0.28 @ 0.000115 ETH (+6.59%)
Onchain Market Cap
$609,981,713.08
Circulating Supply Market Cap
$335,278,902.09
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.00996 CRVValue
$0.00 ( ~0 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | CRV-USDT | $0.2841 0.0001158 Eth | $29,852,690.00 112,510,661.000 CRV | 27.1540% |
2 | ![]() | CRV-USDT | $0.2836 0.0001155 Eth | $11,424,878.00 43,048,634.900 CRV | 10.3896% |
3 | ![]() | CRV-USDT | $0.284 0.0001158 Eth | $8,126,789.00 30,842,878.990 CRV | 7.4438% |
4 | ![]() | CRV-USDT | $0.2831 0.0001154 Eth | $7,291,550.00 27,483,343.861 CRV | 6.6330% |
5 | ![]() | CRV-USDT | $0.2831 0.0001154 Eth | $6,367,982.00 23,996,037.617 CRV | 5.7914% |
6 | ![]() | CRV-USDT | $0.284 0.0001158 Eth | $4,558,871.00 17,134,801.770 CRV | 4.1354% |
7 | ![]() | CRV-USDT | $0.2835 0.0001152 Eth | $4,416,902.00 15,575,937.100 CRV | 3.7592% |
8 | ![]() | CRV-USDT | $0.2836 0.0001156 Eth | $4,400,866.00 0.000 CRV | 0.0000% |
9 | ![]() | CRV-USDT | $0.2838 0.0001157 Eth | $3,717,589.00 13,098,127.050 CRV | 3.1612% |
10 | ![]() | CRV-USDT | $0.2833 0.0001154 Eth | $3,056,418.00 10,788,192.700 CRV | 2.6037% |
11 | ![]() | CRV-USD | $0.2832 0.0001155 Eth | $2,470,346.00 8,722,973.210 CRV | 2.1053% |
12 | ![]() | CRV-USDT | $0.2835 0.0001156 Eth | $2,390,494.00 9,008,549.300 CRV | 2.1742% |
13 | ![]() | CRV-USDT | $0.2837 0.0001156 Eth | $2,251,090.00 7,934,020.860 CRV | 1.9148% |
14 | ![]() | CRV-USDT | $0.2836 0.0001156 Eth | $1,906,375.00 7,183,171.600 CRV | 1.7336% |
15 | ![]() | CRV-USDT | $0.2834 0.0001154 Eth | $1,811,826.00 6,392,917.800 CRV | 1.5429% |
16 | ![]() | CRV-USDT | $0.284 0.0001157 Eth | $1,716,889.00 6,045,397.100 CRV | 1.4590% |
17 | ![]() | CRV-USDT | $0.2841 0.0001158 Eth | $1,641,291.00 6,182,970.200 CRV | 1.4922% |
18 | ![]() | CRV-USDT | $0.2833 0.0001155 Eth | $1,189,980.00 4,485,243.952 CRV | 1.0825% |
19 | ![]() | CRV-USDT | $0.2838 0.0001157 Eth | $1,102,653.00 3,885,323.524 CRV | 0.9377% |
20 | ![]() | CRV-USDT | $0.2837 0.0001156 Eth | $1,082,342.00 3,814,742.800 CRV | 0.9207% |
21 | ![]() | CRV-USDT | $0.2834 0.0001154 Eth | $1,059,295.00 3,737,452.000 CRV | 0.9020% |
22 | ![]() | CRV-USDT | $0.284 0.0001158 Eth | $906,634.00 3,414,907.500 CRV | 0.8242% |
23 | ![]() | CRV-EUR | $0.2847 0.0001161 Eth | $855,869.00 3,006,180.145 CRV | 0.7255% |
24 | ![]() | CRV-USDT | $0.2834 0.0001154 Eth | $759,857.00 2,681,108.377 CRV | 0.6471% |
25 | ![]() | CRV-USDT | $0.2831 0.0001154 Eth | $734,957.00 2,769,524.502 CRV | 0.6684% |
26 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2836 0.0001156 Eth | $671,345.00 2,526,154.955 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.6097% |
27 | ![]() | CRV-USDT | $0.2802 0.0001142 Eth | $598,411.00 2,135,540.200 CRV | 0.5154% |
28 | ![]() | CRV-USDT | $0.2801 0.0001142 Eth | $564,447.00 2,134,393.400 CRV | 0.5151% |
29 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.283 0.0001153 Eth | $530,375.00 1,943,054.954 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.4689% |
30 | ![]() | CRV-USDT | $0.2835 0.0001155 Eth | $481,083.00 1,812,934.590 CRV | 0.4375% |
31 | ![]() | CRV-USDT | $0.2833 0.0001154 Eth | $460,187.00 1,727,295.400 CRV | 0.4169% |
32 | ![]() | CRV-USDT | $0.2831 0.0001154 Eth | $425,577.00 1,601,704.200 CRV | 0.3866% |
33 | ![]() | CRV-BTC | $0.2838 0.0001157 Eth | $419,346.00 1,548,852.800 CRV | 0.3738% |
34 | ![]() | CRV-USDT | $0.2836 0.0001156 Eth | $396,592.00 1,398,422.800 CRV | 0.3375% |
35 | ![]() | CRV-USD | $0.284 0.0001158 Eth | $382,911.00 1,348,278.056 CRV | 0.3254% |
36 | ![]() | CRV-USDT | $0.283 0.0001154 Eth | $378,355.00 1,425,262.609 CRV | 0.3440% |
37 | ![]() | CRV-USDT | $0.2834 0.0001154 Eth | $369,954.00 1,392,917.860 CRV | 0.3362% |
38 | ![]() | CRV-USDT | $0.2843 0.0001159 Eth | $341,653.00 1,201,616.700 CRV | 0.2900% |
39 | ![]() | CRV-THB | $0.2842 0.0001159 Eth | $300,749.00 1,058,377.700 CRV | 0.2554% |
40 | ![]() | CRV-USDT | $0.285 0.0001162 Eth | $286,906.00 1,081,739.200 CRV | 0.2611% |
41 | ![]() | CRV-USDT | $0.2833 0.0001155 Eth | $268,660.00 1,011,449.021 CRV | 0.2441% |
42 | ![]() | CRV-USDT | $0.2834 0.0001154 Eth | $260,944.00 983,654.000 CRV | 0.2374% |
43 | ![]() | CRV-USDT | $0.284 0.0001158 Eth | $248,395.00 874,629.696 CRV | 0.2111% |
44 | ![]() | CRV-USD | $0.283 0.0001153 Eth | $233,602.00 825,448.850 CRV | 0.1992% |
45 | ![]() | CRV-USDT | $0.283 0.0001153 Eth | $232,956.00 823,215.000 CRV | 0.1987% |
46 | ![]() | CRV-USDT | $0.2834 0.0001155 Eth | $214,243.00 755,877.703 CRV | 0.1824% |
47 | ![]() | CRV-USDC | $0.284 0.0001154 Eth | $210,614.00 787,747.800 CRV | 0.1901% |
48 | ![]() | CRV-USDT | $0.2839 0.0001156 Eth | $190,399.00 670,589.800 CRV | 0.1618% |
49 | ![]() | CRV-USDT | $0.2841 0.0001158 Eth | $178,275.00 627,508.308 CRV | 0.1514% |
50 | ![]() | CRV-USD | $0.2805 0.0001145 Eth | $174,409.00 621,780.000 CRV | 0.1501% |
51 | ![]() | CRV-USDC | $0.2826 0.0001152 Eth | $155,644.00 586,032.200 CRV | 0.1414% |
52 | ![]() | CRV-USDT | $0.2831 0.0001154 Eth | $153,382.00 541,796.000 CRV | 0.1308% |
53 | ![]() | CRV-TRY | $0.2801 0.0001144 Eth | $138,408.00 494,128.690 CRV | 0.1193% |
54 | ![]() | CRV-KRW | $0.2879 0.0001173 Eth | $137,448.00 477,385.190 CRV | 0.1152% |
55 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2821 0.0001150 Eth | $135,325.00 511,183.788 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.1234% |
56 | ![]() | CRV-USDT | $0.2839 0.0001157 Eth | $133,956.00 504,853.300 CRV | 0.1218% |
57 | ![]() | CRV-BTC | $0.2845 0.0001160 Eth | $127,122.00 446,869.200 CRV | 0.1079% |
58 | ![]() | CRV-TRY | $0.2842 0.0001159 Eth | $113,824.00 400,510.000 CRV | 0.0967% |
59 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2823 0.0001151 Eth | $89,710.00 336,088.791 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0811% |
60 | ![]() | CRV-USDT | $0.2849 0.0001162 Eth | $88,562.00 310,866.338 CRV | 0.0750% |
61 | ![]() | CRV-USDT | $0.2831 0.0001153 Eth | $81,774.00 308,267.441 CRV | 0.0744% |
62 | ![]() | CRV-TRY | $0.2807 0.0001145 Eth | $78,502.00 288,714.900 CRV | 0.0697% |
63 | ![]() | CRV-USD | $0.2834 0.0001155 Eth | $77,067.00 271,936.598 CRV | 0.0656% |
64 | ![]() | CRV-EUR | $0.2816 0.0001148 Eth | $68,681.00 243,932.970 CRV | 0.0589% |
65 | ![]() | CRV-TRY | $0.2838 0.0001156 Eth | $68,141.00 240,099.125 CRV | 0.0579% |
66 | ![]() | CRV-USDT | $0.2836 0.0001156 Eth | $55,119.00 207,774.000 CRV | 0.0501% |
67 | ![]() | CRV-EUR | $0.2837 0.0001157 Eth | $50,277.00 177,242.239 CRV | 0.0428% |
68 | ![]() | CRV-GBP | $0.2816 0.0001148 Eth | $46,244.00 164,209.860 CRV | 0.0396% |
69 | ![]() | CRV-BTC | $0.284 0.0001157 Eth | $41,794.00 147,176.000 CRV | 0.0355% |
70 | ![]() | CRV-USDT | $0.282 0.0001150 Eth | $41,638.00 162,183.200 CRV | 0.0391% |
71 | ![]() | CRV-BTC | $0.283 0.0001152 Eth | $40,754.00 157,433.900 CRV | 0.0380% |
72 | ![]() | CRV-BTC | $0.2833 0.0001155 Eth | $40,144.00 148,435.725 CRV | 0.0358% |
73 | ![]() | CRV-BTC | $0.2815 0.0001148 Eth | $37,970.00 134,882.189 CRV | 0.0326% |
74 | ![]() | CRV-BTC | $0.285 0.0001162 Eth | $37,317.00 130,938.930 CRV | 0.0316% |
75 | ![]() | CRV-USDC | $0.2846 0.0001160 Eth | $35,907.00 134,963.868 CRV | 0.0326% |
76 | ![]() | CRV-USDT | $0.2836 0.0001156 Eth | $31,605.00 111,430.034 CRV | 0.0269% |
77 | ![]() | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.2833 0.0001155 Eth | $22,512.00 82,534.548 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0199% |
78 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599 | $0.2841 0.0001158 Eth | $22,085.00 80,618.463 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0195% |
79 | ![]() | CRV-TRY | $0.2843 0.0001159 Eth | $14,194.33 53,293.501 CRV | 0.0129% |
80 | ![]() | CRV-USDT | $0.2835 0.0001156 Eth | $14,026.81 52,796.100 CRV | 0.0127% |
81 | ![]() | CRV-USDT | $0.2832 0.0001155 Eth | $12,277.18 46,322.457 CRV | 0.0112% |
82 | ![]() | CRV-USDT | $0.2808 0.0001146 Eth | $11,831.78 42,138.412 CRV | 0.0102% |
83 | ![]() | CRV-USD | $0.2849 0.0001160 Eth | $10,301.42 36,164.375 CRV | 0.0087% |
84 | ![]() | CRV-IDR | $0.2847 0.0001161 Eth | $8,431.63 29,614.440 CRV | 0.0071% |
85 | ![]() | CRV-USD | $0.284 0.0001157 Eth | $7,439.49 26,200.000 CRV | 0.0063% |
86 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2804 0.0001143 Eth | $6,836.31 25,041.688 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0060% |
87 | ![]() | CRV-XBT | $0.2792 0.0001138 Eth | $6,709.59 24,035.667 CRV | 0.0058% |
88 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $0.2816 0.0001147 Eth | $6,402.36 24,105.922 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0058% |
89 | ![]() | CRV-BTC | $0.2816 0.0001148 Eth | $5,405.23 19,191.800 CRV | 0.0046% |
90 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.2831 0.0001154 Eth | $5,189.96 19,108.989 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0046% |
91 | ![]() | CRV-EUR | $0.279 0.0001137 Eth | $4,897.67 17,555.529 CRV | 0.0042% |
92 | ![]() | CRV-USDT | $0.2833 0.0001155 Eth | $4,568.21 17,252.785 CRV | 0.0042% |
93 | ![]() | CRV-ETH | $0.2842 0.0001158 Eth | $3,066.59 11,165.640 CRV | 0.0027% |
94 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.2803 0.0001149 Eth | $3,029.95 11,183.265 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0027% |
95 | ![]() | CRV-USD | $0.2802 0.0001142 Eth | $2,800.94 9,996.556 CRV | 0.0024% |
96 | ![]() | CRV-BTC | $0.2832 0.0001155 Eth | $1,767.96 6,592.498 CRV | 0.0016% |
97 | ![]() | CRV-USDT | $0.2793 0.0001139 Eth | $726.44 2,600.917 CRV | 0.0006% |
98 | ![]() | CRV-ETH | $0.2837 0.0001157 Eth | $680.63 2,398.885 CRV | 0.0006% |
99 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.2813 0.0001147 Eth | $363.59 1,357.509 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0003% |
100 | ![]() | 0X1E4F97B9F9F913C46F1632781732927B9019C68B-0X21BE370D5312F44CB42CE377BC9B8A0CEF1A4C83 | $0.0345 0.0000140 Eth | $6.07 176.209 0X1E4F97B9F9F913C46F1632781732927B9019C68B | 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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