Overview
Max Total Supply
2,162,433,216.196626242856855252 CRV
Holders
87,778 ( 0.010%)
Market
Price
$0.31 @ 0.000117 ETH (-3.97%)
Onchain Market Cap
$677,098,075.65
Circulating Supply Market Cap
$365,758,319.21
Other Info
Token Contract (WITH 18 Decimals)
Balance
56.908894804568823116 CRVValue
$17.82 ( ~0.0066399387696727 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $0.312 0.0001162 Eth | $33,687,753.00 105,948,673.300 CRV | 30.2385% |
2 | BloFin | CRV-USDT | $0.3121 0.0001162 Eth | $12,925,373.00 40,617,857.300 CRV | 11.5926% |
3 | OKX | CRV-USDT | $0.3122 0.0001163 Eth | $7,763,696.00 24,601,925.628 CRV | 7.0216% |
4 | HTX | CRV-USDT | $0.3123 0.0001163 Eth | $6,076,077.00 19,118,184.912 CRV | 5.4565% |
5 | Websea | CRV-USDT | $0.3125 0.0001163 Eth | $4,920,998.00 0.000 CRV | 0.0000% |
6 | Bybit | CRV-USDT | $0.312 0.0001162 Eth | $4,787,249.00 15,080,106.430 CRV | 4.3040% |
7 | Bitunix | CRV-USDT | $0.3128 0.0001164 Eth | $4,026,880.00 12,872,574.400 CRV | 3.6739% |
8 | Gate.io | CRV-USDT | $0.3121 0.0001163 Eth | $3,816,347.00 12,002,026.260 CRV | 3.4255% |
9 | WhiteBIT | CRV-USDT | $0.3117 0.0001161 Eth | $3,328,096.00 10,677,097.919 CRV | 3.0473% |
10 | Coinbase Exchange | CRV-USD | $0.3121 0.0001162 Eth | $2,764,939.00 8,859,143.300 CRV | 2.5285% |
11 | XT.COM | CRV-USDT | $0.3125 0.0001163 Eth | $2,688,189.00 8,449,939.400 CRV | 2.4117% |
12 | Trubit | CRV-USDT | $0.312 0.0001161 Eth | $2,612,050.00 8,186,118.200 CRV | 2.3364% |
13 | LBank | CRV-USDT | $0.3119 0.0001162 Eth | $2,311,528.00 7,411,273.420 CRV | 2.1152% |
14 | Phemex | CRV-USDT | $0.313 0.0001165 Eth | $2,269,090.00 7,248,689.620 CRV | 2.0688% |
15 | Slex | CRV-USDT | $0.3123 0.0001162 Eth | $2,194,511.00 6,896,626.000 CRV | 1.9683% |
16 | Hotcoin | CRV-USDT | $0.312 0.0001162 Eth | $1,961,312.00 6,286,388.700 CRV | 1.7942% |
17 | DigiFinex | CRV-USDT | $0.312 0.0001162 Eth | $1,811,986.00 5,807,572.100 CRV | 1.6575% |
18 | KuCoin | CRV-USDT | $0.3123 0.0001162 Eth | $1,792,562.00 5,740,753.517 CRV | 1.6385% |
19 | Dex-Trade | CRV-USDT | $0.3121 0.0001162 Eth | $1,197,320.00 3,836,787.300 CRV | 1.0950% |
20 | BYDFi | CRV-USDT | $0.3131 0.0001165 Eth | $1,146,317.00 3,660,687.900 CRV | 1.0448% |
21 | Bitvavo | CRV-EUR | $0.3116 0.0001161 Eth | $1,009,584.00 3,240,147.199 CRV | 0.9248% |
22 | Bitget | CRV-USDT | $0.3113 0.0001160 Eth | $958,160.00 3,039,650.981 CRV | 0.8675% |
23 | CoinCatch | CRV-USDT | $0.3121 0.0001162 Eth | $684,497.00 2,145,727.731 CRV | 0.6124% |
24 | CoinW | CRV-USDT | $0.3122 0.0001162 Eth | $632,358.00 2,025,297.911 CRV | 0.5780% |
25 | MEXC | CRV-USDT | $0.3126 0.0001163 Eth | $559,367.00 1,789,204.460 CRV | 0.5107% |
26 | PointPay | CRV-USDT | $0.312 0.0001162 Eth | $554,467.00 1,744,927.721 CRV | 0.4980% |
27 | Binance | CRV-BTC | $0.3124 0.0001164 Eth | $495,150.00 1,565,975.900 CRV | 0.4469% |
28 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.3148 0.0001173 Eth | $491,432.00 1,541,912.352 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.4401% |
29 | BingX | CRV-USDT | $0.312 0.0001162 Eth | $467,271.00 1,467,906.715 CRV | 0.4190% |
30 | Kraken | CRV-USD | $0.313 0.0001165 Eth | $412,565.00 1,318,099.207 CRV | 0.3762% |
31 | BitMart | CRV-USDT | $0.3129 0.0001165 Eth | $359,994.00 1,150,402.080 CRV | 0.3283% |
32 | Binance | CRV-USDC | $0.3133 0.0001165 Eth | $335,946.00 1,048,292.500 CRV | 0.2992% |
33 | Coinstore | CRV-USDT | $0.3122 0.0001162 Eth | $317,311.00 996,890.100 CRV | 0.2845% |
34 | Tapbit | CRV-USDT | $0.3122 0.0001163 Eth | $296,346.00 932,186.700 CRV | 0.2661% |
35 | Bitazza | CRV-USDT | $0.3109 0.0001158 Eth | $291,343.00 914,172.800 CRV | 0.2609% |
36 | Bitkub | CRV-THB | $0.3128 0.0001165 Eth | $287,626.00 919,601.518 CRV | 0.2625% |
37 | P2B | CRV-USDT | $0.312 0.0001162 Eth | $274,030.00 878,296.500 CRV | 0.2507% |
38 | P2B | CRV-USD | $0.312 0.0001162 Eth | $260,021.00 833,399.520 CRV | 0.2379% |
39 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3129 0.0001165 Eth | $224,924.00 710,608.178 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.2028% |
40 | LocalTrade | CRV-USDT | $0.3121 0.0001162 Eth | $224,445.00 719,141.330 CRV | 0.2052% |
41 | Bithumb | CRV-KRW | $0.3165 0.0001178 Eth | $179,013.00 565,560.458 CRV | 0.1614% |
42 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.312 0.0001162 Eth | $173,284.00 554,647.456 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1583% |
43 | Bitget | CRV-USDC | $0.3124 0.0001164 Eth | $147,627.00 462,824.010 CRV | 0.1321% |
44 | WhiteBIT | CRV-BTC | $0.3124 0.0001164 Eth | $143,376.00 459,002.500 CRV | 0.1310% |
45 | BitDelta | CRV-USDT | $0.3123 0.0001162 Eth | $137,866.00 432,588.300 CRV | 0.1235% |
46 | WhiteBIT | CRV-TRY | $0.3117 0.0001161 Eth | $131,062.00 420,409.800 CRV | 0.1200% |
47 | BTSE | CRV-USDT | $0.3119 0.0001161 Eth | $123,349.00 395,523.307 CRV | 0.1129% |
48 | Gemini | CRV-USD | $0.3141 0.0001170 Eth | $113,068.00 359,974.009 CRV | 0.1027% |
49 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3124 0.0001163 Eth | $112,691.00 354,191.122 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.1011% |
50 | OKX | CRV-USDC | $0.3119 0.0001162 Eth | $104,542.00 332,931.886 CRV | 0.0950% |
51 | CoinEx | CRV-USDT | $0.3124 0.0001163 Eth | $98,979.00 310,917.039 CRV | 0.0887% |
52 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.314 0.0001168 Eth | $86,531.00 150,477.810 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0429% |
53 | Kraken | CRV-EUR | $0.3161 0.0001177 Eth | $76,350.00 241,537.850 CRV | 0.0689% |
54 | Icrypex | CRV-TRY | $0.314 0.0001169 Eth | $71,422.00 227,429.429 CRV | 0.0649% |
55 | Paribu | CRV-TRY | $0.3132 0.0001166 Eth | $66,443.00 212,128.720 CRV | 0.0605% |
56 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3139 0.0001169 Eth | $62,788.00 196,609.797 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0561% |
57 | Binance | CRV-TRY | $0.3126 0.0001162 Eth | $60,738.00 187,997.100 CRV | 0.0537% |
58 | BigONE | CRV-USDT | $0.311 0.0001158 Eth | $51,384.00 165,241.722 CRV | 0.0472% |
59 | WEEX | CRV-USDT | $0.3124 0.0001162 Eth | $50,107.00 157,200.000 CRV | 0.0449% |
60 | Deepcoin | CRV-USDT | $0.312 0.0001161 Eth | $49,918.00 162,499.000 CRV | 0.0464% |
61 | Coinbase Exchange | CRV-EUR | $0.3131 0.0001166 Eth | $49,810.00 159,095.480 CRV | 0.0454% |
62 | XT.COM | CRV-BTC | $0.3126 0.0001164 Eth | $44,034.00 157,170.100 CRV | 0.0449% |
63 | Dex-Trade | CRV-BTC | $0.3119 0.0001161 Eth | $43,856.00 140,587.000 CRV | 0.0401% |
64 | Bitget | CRV-BTC | $0.3124 0.0001164 Eth | $38,441.00 121,577.134 CRV | 0.0347% |
65 | LATOKEN | CRV-BTC | $0.3145 0.0001171 Eth | $38,429.00 122,206.015 CRV | 0.0349% |
66 | LATOKEN | CRV-USDT | $0.3121 0.0001162 Eth | $35,271.00 113,010.373 CRV | 0.0323% |
67 | OKX | CRV-EUR | $0.3122 0.0001163 Eth | $31,101.00 98,828.039 CRV | 0.0282% |
68 | Biconomy.com | CRV-USDT | $0.3126 0.0001163 Eth | $28,765.00 90,444.000 CRV | 0.0258% |
69 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.3124 0.0001163 Eth | $27,266.00 86,032.749 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0246% |
70 | WOO X | CRV-USDT | $0.312 0.0001161 Eth | $25,883.00 82,967.751 CRV | 0.0237% |
71 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.3126 0.0001164 Eth | $22,224.00 70,333.860 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0201% |
72 | Bitfinex | CRV-USDT | $0.312 0.0001162 Eth | $19,679.05 63,075.065 CRV | 0.0180% |
73 | Bitlo | CRV-TRY | $0.3141 0.0001168 Eth | $16,278.93 50,828.776 CRV | 0.0145% |
74 | Coinbase Exchange | CRV-GBP | $0.3133 0.0001167 Eth | $15,287.21 48,794.240 CRV | 0.0139% |
75 | Bitfinex | CRV-USD | $0.3145 0.0001172 Eth | $14,549.40 46,263.479 CRV | 0.0132% |
76 | Indodax | CRV-IDR | $0.3147 0.0001172 Eth | $12,294.50 39,065.649 CRV | 0.0111% |
77 | Bitazza | CRV-THB | $0.3107 0.0001157 Eth | $11,487.82 35,444.900 CRV | 0.0101% |
78 | Kraken | CRV-XBT | $0.3145 0.0001171 Eth | $10,114.68 32,164.950 CRV | 0.0092% |
79 | P2B | CRV-BTC | $0.3132 0.0001166 Eth | $7,866.10 25,118.900 CRV | 0.0072% |
80 | TokoCrypto | CRV-USDT | $0.3135 0.0001167 Eth | $6,672.06 21,280.283 CRV | 0.0061% |
81 | Nonkyc.io | CRV-USDT | $0.313 0.0001166 Eth | $6,181.24 19,479.978 CRV | 0.0056% |
82 | Azbit | CRV-USDT | $0.3138 0.0001168 Eth | $5,364.31 16,789.577 CRV | 0.0048% |
83 | Bitstamp | CRV-EUR | $0.3132 0.0001165 Eth | $5,086.57 16,241.119 CRV | 0.0046% |
84 | Upbit | CRV-BTC | $0.3137 0.0001169 Eth | $5,061.97 16,137.110 CRV | 0.0046% |
85 | Nominex | CRV-USDT | $0.3122 0.0001162 Eth | $4,598.94 14,732.491 CRV | 0.0042% |
86 | Sushiswap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3134 0.0001166 Eth | $4,032.95 12,760.386 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0036% |
87 | HashKey Global | CRV-USDT | $0.3124 0.0001163 Eth | $2,832.20 8,887.200 CRV | 0.0025% |
88 | Bitstamp | CRV-USD | $0.3144 0.0001170 Eth | $2,615.76 8,320.369 CRV | 0.0024% |
89 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3134 0.0001165 Eth | $2,108.99 6,720.946 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0019% |
90 | Gate.io | CRV-ETH | $0.3127 0.0001165 Eth | $1,724.50 5,450.490 CRV | 0.0016% |
91 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3138 0.0001168 Eth | $1,458.89 4,603.048 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0013% |
92 | Nonkyc.io | CRV-BTC | $0.31 0.0001154 Eth | $1,326.82 4,216.334 CRV | 0.0012% |
93 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.314 0.0001168 Eth | $738.70 2,322.497 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0007% |
94 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.3143 0.0001171 Eth | $249.06 784.865 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0002% |
95 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $0.3151 0.0001172 Eth | $97.88 310.395 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0001% |
96 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $0.3151 0.0001173 Eth | $72.33 230.144 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
97 | Energiswap | 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E-0XA55F26319462355474A9F2C8790860776A329AA4 | $0.3134 0.0001166 Eth | $49.07 152.271 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E | 0.0000% |
98 | CEX.IO | CRV-USDT | $0.313 0.0001165 Eth | $48.83 152.093 CRV | 0.0000% |
99 | Gravity Finance | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3156 0.0001174 Eth | $14.83 46.978 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0000% |
100 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $0.3138 0.0001169 Eth | $11.77 37.035 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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