Overview
Max Total Supply
2,162,294,346.122464116262125785 CRV
Holders
87,771 ( 0.007%)
Market
Price
$0.32 @ 0.000118 ETH (-6.42%)
Onchain Market Cap
$682,051,808.17
Circulating Supply Market Cap
$368,427,018.34
Other Info
Token Contract (WITH 18 Decimals)
Balance
55.623419515898035181 CRVValue
$17.55 ( ~0.00654252821017304 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | CRV-USDT | $0.3145 0.0001172 Eth | $34,861,481.00 108,182,942.500 CRV | 28.5100% |
2 | ![]() | CRV-USDT | $0.3145 0.0001172 Eth | $13,173,295.00 40,868,083.200 CRV | 10.7702% |
3 | ![]() | CRV-USDT | $0.3149 0.0001173 Eth | $7,914,857.00 24,779,605.761 CRV | 6.5303% |
4 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $6,693,893.00 20,791,795.168 CRV | 5.4794% |
5 | ![]() | CRV-USDT | $0.3149 0.0001173 Eth | $5,588,125.00 17,350,269.370 CRV | 4.5724% |
6 | ![]() | CRV-USDT | $0.3145 0.0001172 Eth | $5,218,913.00 0.000 CRV | 0.0000% |
7 | ![]() | CRV-USDT | $0.3146 0.0001172 Eth | $4,537,789.00 14,090,843.250 CRV | 3.7134% |
8 | ![]() | CRV-USDT | $0.3144 0.0001172 Eth | $4,143,366.00 13,176,312.800 CRV | 3.4724% |
9 | ![]() | CRV-USD | $0.3149 0.0001174 Eth | $3,997,140.00 12,693,362.140 CRV | 3.3451% |
10 | ![]() | CRV-USDT | $0.3145 0.0001172 Eth | $3,507,186.00 11,153,059.282 CRV | 2.9392% |
11 | ![]() | CRV-USDT | $0.3146 0.0001172 Eth | $2,833,886.00 8,733,487.600 CRV | 2.3016% |
12 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $2,800,609.00 8,690,144.200 CRV | 2.2902% |
13 | ![]() | CRV-USDT | $0.3148 0.0001173 Eth | $2,411,621.00 7,661,517.850 CRV | 2.0191% |
14 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $2,299,147.00 7,130,560.400 CRV | 1.8792% |
15 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $2,165,128.00 6,880,616.660 CRV | 1.8133% |
16 | ![]() | CRV-USDT | $0.3148 0.0001173 Eth | $2,146,555.00 6,819,749.110 CRV | 1.7972% |
17 | ![]() | CRV-USDT | $0.3149 0.0001174 Eth | $1,998,784.00 6,348,125.200 CRV | 1.6730% |
18 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $1,876,948.00 5,965,084.400 CRV | 1.5720% |
19 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $1,382,745.00 4,291,009.114 CRV | 1.1308% |
20 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $1,242,108.00 3,947,465.600 CRV | 1.0403% |
21 | ![]() | CRV-EUR | $0.3156 0.0001177 Eth | $1,204,748.00 3,816,822.508 CRV | 1.0059% |
22 | ![]() | CRV-USDT | $0.3143 0.0001171 Eth | $1,168,100.00 3,717,038.600 CRV | 0.9796% |
23 | ![]() | CRV-USD | $0.315 0.0001174 Eth | $973,111.00 3,089,241.558 CRV | 0.8141% |
24 | ![]() | CRV-USDT | $0.3144 0.0001172 Eth | $745,592.00 2,316,814.900 CRV | 0.6106% |
25 | ![]() | CRV-USDT | $0.3143 0.0001171 Eth | $728,720.00 2,318,391.900 CRV | 0.6110% |
26 | ![]() | CRV-USDT | $0.3148 0.0001173 Eth | $700,799.00 2,226,439.973 CRV | 0.5867% |
27 | ![]() | CRV-USDT | $0.3142 0.0001171 Eth | $695,577.00 2,198,853.527 CRV | 0.5795% |
28 | ![]() | CRV-USDT | $0.3144 0.0001172 Eth | $683,789.00 2,108,747.339 CRV | 0.5557% |
29 | ![]() | CRV-BTC | $0.314 0.0001170 Eth | $611,336.00 1,911,582.900 CRV | 0.5038% |
30 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $587,048.00 1,821,984.610 CRV | 0.4802% |
31 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.3141 0.0001171 Eth | $572,271.00 1,793,326.647 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.4726% |
32 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $566,624.00 1,800,766.266 CRV | 0.4746% |
33 | ![]() | CRV-USDT | $0.3143 0.0001171 Eth | $488,065.00 1,514,966.023 CRV | 0.3992% |
34 | ![]() | CRV-USDC | $0.3146 0.0001172 Eth | $390,210.00 1,209,535.200 CRV | 0.3188% |
35 | ![]() | CRV-USDT | $0.3146 0.0001172 Eth | $374,232.00 1,189,737.500 CRV | 0.3135% |
36 | ![]() | CRV-USD | $0.3136 0.0001169 Eth | $365,085.00 1,164,174.571 CRV | 0.3068% |
37 | ![]() | CRV-SGD | $0.3136 0.0001169 Eth | $364,727.00 1,162,957.901 CRV | 0.3065% |
38 | ![]() | CRV-THB | $0.3158 0.0001177 Eth | $356,590.00 1,129,037.132 CRV | 0.2975% |
39 | ![]() | CRV-USDT | $0.3142 0.0001171 Eth | $325,369.00 1,010,240.300 CRV | 0.2662% |
40 | ![]() | CRV-USDT | $0.3148 0.0001173 Eth | $310,341.00 962,864.900 CRV | 0.2537% |
41 | ![]() | CRV-USDT | $0.3134 0.0001169 Eth | $286,732.00 886,474.600 CRV | 0.2336% |
42 | ![]() | CRV-USDT | $0.3141 0.0001171 Eth | $278,580.00 887,030.100 CRV | 0.2338% |
43 | ![]() | CRV-USD | $0.314 0.0001171 Eth | $268,069.00 853,722.820 CRV | 0.2250% |
44 | ![]() | CRV-USDT | $0.3147 0.0001173 Eth | $231,809.00 736,647.880 CRV | 0.1941% |
45 | ![]() | CRV-BTC | $0.3147 0.0001173 Eth | $207,733.00 660,003.600 CRV | 0.1739% |
46 | ![]() | CRV-TRY | $0.3152 0.0001175 Eth | $165,599.00 525,303.200 CRV | 0.1384% |
47 | ![]() | CRV-USDT | $0.3141 0.0001171 Eth | $156,181.00 483,234.075 CRV | 0.1273% |
48 | ![]() | CRV-USDT | $0.3145 0.0001172 Eth | $152,095.00 468,785.700 CRV | 0.1235% |
49 | ![]() | CRV-USDC | $0.3149 0.0001174 Eth | $146,397.00 451,556.020 CRV | 0.1190% |
50 | ![]() | CRV-USDT | $0.3143 0.0001171 Eth | $138,765.00 441,546.940 CRV | 0.1164% |
51 | ![]() | CRV-USDC | $0.3151 0.0001174 Eth | $118,135.00 372,723.995 CRV | 0.0982% |
52 | ![]() | CRV-USD | $0.3155 0.0001176 Eth | $114,236.00 362,079.422 CRV | 0.0954% |
53 | ![]() | CRV-EUR | $0.3149 0.0001173 Eth | $108,491.00 344,556.107 CRV | 0.0908% |
54 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3141 0.0001171 Eth | $106,369.00 336,448.368 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0887% |
55 | ![]() | CRV-TRY | $0.3155 0.0001174 Eth | $89,153.00 282,542.630 CRV | 0.0745% |
56 | ![]() | CRV-TRY | $0.3155 0.0001176 Eth | $85,540.00 261,777.600 CRV | 0.0690% |
57 | ![]() | CRV-TRY | $0.3144 0.0001172 Eth | $71,895.00 228,678.899 CRV | 0.0603% |
58 | ![]() | CRV-EUR | $0.3173 0.0001183 Eth | $65,516.00 206,460.130 CRV | 0.0544% |
59 | ![]() | CRV-BTC | $0.314 0.0001170 Eth | $56,631.00 192,508.600 CRV | 0.0507% |
60 | ![]() | CRV-USDT | $0.3141 0.0001171 Eth | $56,440.00 174,850.317 CRV | 0.0461% |
61 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3138 0.0001169 Eth | $56,098.00 177,601.981 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0468% |
62 | ![]() | CRV-USDT | $0.3154 0.0001172 Eth | $53,327.00 164,634.000 CRV | 0.0434% |
63 | ![]() | CRV-USDT | $0.3141 0.0001171 Eth | $51,944.00 162,467.087 CRV | 0.0428% |
64 | ![]() | CRV-BTC | $0.3146 0.0001173 Eth | $49,543.00 157,470.000 CRV | 0.0415% |
65 | ![]() | CRV-USDT | $0.3141 0.0001171 Eth | $49,036.00 156,125.800 CRV | 0.0411% |
66 | ![]() | CRV-BTC | $0.314 0.0001170 Eth | $45,595.00 145,211.748 CRV | 0.0383% |
67 | ![]() | CRV-BTC | $0.3153 0.0001175 Eth | $41,556.00 129,551.249 CRV | 0.0341% |
68 | ![]() | CRV-USDT | $0.3144 0.0001172 Eth | $37,647.00 119,757.805 CRV | 0.0316% |
69 | ![]() | CRV-USDT | $0.3145 0.0001172 Eth | $29,848.00 92,654.500 CRV | 0.0244% |
70 | ![]() | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.3143 0.0001171 Eth | $25,888.00 81,171.506 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0214% |
71 | ![]() | CRV-XBT | $0.3146 0.0001173 Eth | $25,274.00 80,330.490 CRV | 0.0212% |
72 | ![]() | CRV-USDT | $0.3148 0.0001173 Eth | $24,592.00 78,112.112 CRV | 0.0206% |
73 | ![]() | CRV-BTC | $0.3147 0.0001173 Eth | $24,279.00 77,160.510 CRV | 0.0203% |
74 | ![]() | CRV-GBP | $0.3161 0.0001178 Eth | $22,259.00 70,419.590 CRV | 0.0186% |
75 | ![]() | CRV-USD | $0.3152 0.0001175 Eth | $21,945.00 69,615.867 CRV | 0.0183% |
76 | ![]() | CRV-USDT | $0.3148 0.0001173 Eth | $19,915.35 63,268.202 CRV | 0.0167% |
77 | ![]() | CRV-TRY | $0.3152 0.0001175 Eth | $17,543.59 54,186.167 CRV | 0.0143% |
78 | ![]() | CRV-BTC | $0.3171 0.0001182 Eth | $17,480.50 55,118.223 CRV | 0.0145% |
79 | ![]() | CRV-USD | $0.3151 0.0001174 Eth | $16,994.09 53,939.209 CRV | 0.0142% |
80 | ![]() | CRV-THB | $0.3142 0.0001171 Eth | $16,435.69 50,390.500 CRV | 0.0133% |
81 | ![]() | CRV-IDR | $0.3134 0.0001168 Eth | $13,185.68 42,075.241 CRV | 0.0111% |
82 | ![]() | CRV-ETH | $0.3148 0.0001174 Eth | $9,852.72 31,295.638 CRV | 0.0082% |
83 | ![]() | CRV-BTC | $0.3146 0.0001173 Eth | $8,340.62 26,510.200 CRV | 0.0070% |
84 | ![]() | CRV-USDT | $0.3163 0.0001179 Eth | $7,943.46 24,230.007 CRV | 0.0064% |
85 | ![]() | CRV-USDT | $0.3147 0.0001172 Eth | $7,041.24 22,372.578 CRV | 0.0059% |
86 | ![]() | CRV-USDT | $0.3144 0.0001172 Eth | $5,974.41 18,450.265 CRV | 0.0049% |
87 | ![]() | CRV-EUR | $0.3169 0.0001180 Eth | $5,313.72 16,765.516 CRV | 0.0044% |
88 | ![]() | CRV-USD | $0.3166 0.0001180 Eth | $3,907.02 12,341.728 CRV | 0.0033% |
89 | ![]() | CRV-USDT | $0.3144 0.0001172 Eth | $3,035.49 9,409.400 CRV | 0.0025% |
90 | ![]() | CRV-ETH | $0.3142 0.0001171 Eth | $2,606.77 8,142.230 CRV | 0.0021% |
91 | ![]() | CRV-ZAR | $0.3161 0.0001178 Eth | $2,594.23 8,205.870 CRV | 0.0022% |
92 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.314 0.0001170 Eth | $2,315.87 7,214.897 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0019% |
93 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3167 0.0001180 Eth | $2,002.66 6,270.127 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0017% |
94 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.3176 0.0001184 Eth | $916.10 2,824.879 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0007% |
95 | ![]() | CRV-BRL | $0.3176 0.0001184 Eth | $728.34 2,186.986 CRV | 0.0006% |
96 | ![]() | CRV-USD | $0.316 0.0001178 Eth | $688.09 2,149.446 CRV | 0.0006% |
97 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3161 0.0001177 Eth | $311.20 985.214 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0003% |
98 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.3154 0.0001175 Eth | $302.89 943.001 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0002% |
99 | ![]() | CRV-USDT | $0.3151 0.0001174 Eth | $75.66 232.448 CRV | 0.0001% |
100 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $0.3144 0.0001172 Eth | $13.97 43.044 0X172370D5CD63279EFA6D502DAB29171933A610AF | 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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