Overview
Max Total Supply
2,148,606,535.179541845201831001 CRV
Holders
86,773 ( -0.002%)
Market
Price
$0.26 @ 0.000081 ETH (-5.63%)
Onchain Market Cap
$553,368,954.31
Circulating Supply Market Cap
$306,346,894.86
Other Info
Token Contract (WITH 18 Decimals)
Balance
409.39568851 CRVValue
$105.44 ( ~0.033287720734927 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $0.2571 0.0000812 Eth | $10,697,817.00 41,104,281.700 CRV | 15.2813% |
2 | OKX | CRV-USDT | $0.2572 0.0000812 Eth | $10,157,208.00 39,378,431.579 CRV | 14.6397% |
3 | HTX | CRV-USDT | $0.2572 0.0000812 Eth | $8,106,549.00 30,955,789.364 CRV | 11.5084% |
4 | BloFin | CRV-USDT | $0.2571 0.0000812 Eth | $4,308,598.00 16,526,771.600 CRV | 6.1441% |
5 | WhiteBIT | CRV-USDT | $0.2569 0.0000812 Eth | $3,750,632.00 14,598,666.361 CRV | 5.4273% |
6 | LBank | CRV-USDT | $0.257 0.0000812 Eth | $3,509,484.00 13,654,728.690 CRV | 5.0764% |
7 | Coinbase Exchange | CRV-USD | $0.257 0.0000811 Eth | $3,114,689.00 12,119,412.700 CRV | 4.5056% |
8 | Bybit | CRV-USDT | $0.2572 0.0000812 Eth | $3,021,129.00 11,601,207.860 CRV | 4.3130% |
9 | CITEX | CRV-USDT | $0.258 0.0000815 Eth | $2,584,442.00 9,921,482.832 CRV | 3.6885% |
10 | Biconomy | CRV-USDT | $0.2569 0.0000812 Eth | $2,332,901.00 8,879,441.900 CRV | 3.3011% |
11 | Gate.io | CRV-USDT | $0.257 0.0000811 Eth | $1,926,414.00 7,460,126.902 CRV | 2.7734% |
12 | Trubit | CRV-USDT | $0.2571 0.0000812 Eth | $1,724,114.00 6,554,300.700 CRV | 2.4367% |
13 | FMFW.io | CRV-USDT | $0.2562 0.0000810 Eth | $965,083.00 3,766,406.500 CRV | 1.4002% |
14 | DigiFinex | CRV-USDT | $0.2571 0.0000812 Eth | $900,416.00 3,501,616.400 CRV | 1.3018% |
15 | XT.COM | CRV-USDT | $0.257 0.0000812 Eth | $859,351.00 3,299,681.200 CRV | 1.2267% |
16 | Phemex | CRV-USDT | $0.2573 0.0000812 Eth | $794,833.00 3,089,143.140 CRV | 1.1484% |
17 | KuCoin | CRV-USDT | $0.2573 0.0000812 Eth | $760,766.00 2,956,531.411 CRV | 1.0991% |
18 | CoinW | CRV-USDT | $0.2571 0.0000812 Eth | $755,948.00 2,940,427.837 CRV | 1.0932% |
19 | Slex | CRV-USDT | $0.2569 0.0000812 Eth | $716,055.00 2,749,480.500 CRV | 1.0222% |
20 | Bitunix | CRV-USDT | $0.257 0.0000812 Eth | $587,792.00 2,286,096.000 CRV | 0.8499% |
21 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2576 0.0000814 Eth | $522,685.00 2,098,426.972 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.7801% |
22 | FameEX | CRV-USDT | $0.2572 0.0000812 Eth | $426,001.00 1,636,849.636 CRV | 0.6085% |
23 | Hotcoin | CRV-USDT | $0.2571 0.0000812 Eth | $422,480.00 1,643,148.100 CRV | 0.6109% |
24 | BYDFi | CRV-USDT | $0.2574 0.0000813 Eth | $406,815.00 1,580,434.100 CRV | 0.5876% |
25 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2587 0.0000817 Eth | $377,074.00 1,458,597.747 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.5423% |
26 | Bitrue | CRV-XRP | $0.2579 0.0000814 Eth | $364,992.00 1,415,056.300 CRV | 0.5261% |
27 | Coinstore | CRV-USDT | $0.257 0.0000811 Eth | $354,686.00 1,361,204.600 CRV | 0.5061% |
28 | AscendEX (BitMax) | CRV-USDT | $0.2561 0.0000809 Eth | $351,958.00 1,374,206.900 CRV | 0.5109% |
29 | Bitrue | CRV-USDC | $0.2571 0.0000812 Eth | $316,957.00 1,232,656.280 CRV | 0.4583% |
30 | Bitazza | CRV-USDT | $0.2578 0.0000814 Eth | $297,170.00 1,129,863.700 CRV | 0.4200% |
31 | Bitrue | CRV-USDT | $0.2572 0.0000812 Eth | $286,472.00 1,113,735.080 CRV | 0.4141% |
32 | Bitvavo | CRV-EUR | $0.2571 0.0000813 Eth | $256,469.00 997,434.106 CRV | 0.3708% |
33 | WhiteBIT | CRV-TRY | $0.2571 0.0000812 Eth | $232,918.00 906,068.200 CRV | 0.3368% |
34 | Bitget | CRV-USDT | $0.2566 0.0000810 Eth | $222,716.00 844,226.924 CRV | 0.3139% |
35 | Dex-Trade | CRV-USDT | $0.2568 0.0000811 Eth | $205,554.00 800,370.300 CRV | 0.2976% |
36 | BingX | CRV-USDT | $0.2572 0.0000812 Eth | $193,180.00 742,232.049 CRV | 0.2759% |
37 | PointPay | CRV-USDT | $0.2572 0.0000812 Eth | $179,279.00 689,044.081 CRV | 0.2562% |
38 | MEXC | CRV-USDT | $0.2573 0.0000812 Eth | $175,700.00 682,840.115 CRV | 0.2539% |
39 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.2573 0.0000811 Eth | $167,437.00 229,598.364 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0854% |
40 | Curve (Arbitrum) | 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.2573 0.0000811 Eth | $147,312.00 150,852.389 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5 | 0.0561% |
41 | BitMart | CRV-USDT | $0.2564 0.0000810 Eth | $143,367.00 559,113.760 CRV | 0.2079% |
42 | Bitget | CRV-USDC | $0.2584 0.0000816 Eth | $134,952.00 511,926.110 CRV | 0.1903% |
43 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.2569 0.0000813 Eth | $126,541.00 504,328.087 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.1875% |
44 | Binance | CRV-BTC | $0.2573 0.0000812 Eth | $122,629.00 478,882.300 CRV | 0.1780% |
45 | BitDelta | CRV-USDT | $0.2572 0.0000812 Eth | $121,721.00 463,728.300 CRV | 0.1724% |
46 | Kraken | CRV-USD | $0.256 0.0000808 Eth | $114,724.00 448,139.349 CRV | 0.1666% |
47 | Paribu | CRV-TRY | $0.2593 0.0000820 Eth | $109,893.00 423,831.470 CRV | 0.1576% |
48 | Bitkub | CRV-THB | $0.2587 0.0000817 Eth | $109,762.00 424,362.522 CRV | 0.1578% |
49 | Tapbit | CRV-USDT | $0.2571 0.0000812 Eth | $106,592.00 408,841.300 CRV | 0.1520% |
50 | Toobit | CRV-USDT | $0.2569 0.0000812 Eth | $97,389.00 371,469.500 CRV | 0.1381% |
51 | Binance | CRV-USDC | $0.257 0.0000812 Eth | $89,457.00 337,241.000 CRV | 0.1254% |
52 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2563 0.0000810 Eth | $85,624.00 328,423.250 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1221% |
53 | P2B | CRV-USDT | $0.2559 0.0000808 Eth | $77,687.00 303,561.200 CRV | 0.1129% |
54 | P2B | CRV-USD | $0.256 0.0000808 Eth | $76,794.00 299,975.350 CRV | 0.1115% |
55 | Binance | CRV-TRY | $0.2583 0.0000816 Eth | $72,773.00 279,119.900 CRV | 0.1038% |
56 | CoinEx | CRV-USDT | $0.2569 0.0000812 Eth | $72,087.00 273,096.575 CRV | 0.1015% |
57 | WhiteBIT | CRV-BTC | $0.2564 0.0000810 Eth | $56,082.00 218,730.700 CRV | 0.0813% |
58 | Icrypex | CRV-TRY | $0.2572 0.0000812 Eth | $53,015.00 206,109.561 CRV | 0.0766% |
59 | BigONE | CRV-USDT | $0.2579 0.0000815 Eth | $50,546.00 195,973.746 CRV | 0.0729% |
60 | OKX | CRV-USDC | $0.2573 0.0000812 Eth | $48,452.00 188,492.576 CRV | 0.0701% |
61 | BTSE | CRV-USDT | $0.2559 0.0000809 Eth | $47,945.00 187,324.240 CRV | 0.0696% |
62 | Deepcoin | CRV-USDT | $0.2569 0.0000812 Eth | $41,821.00 162,197.800 CRV | 0.0603% |
63 | Coinbase Exchange | CRV-EUR | $0.2569 0.0000811 Eth | $39,651.00 154,361.960 CRV | 0.0574% |
64 | Gemini | CRV-USD | $0.2566 0.0000810 Eth | $38,190.00 148,828.973 CRV | 0.0553% |
65 | Bitget | CRV-BTC | $0.2566 0.0000810 Eth | $36,317.00 141,095.457 CRV | 0.0525% |
66 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2576 0.0000814 Eth | $35,375.00 138,533.946 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0515% |
67 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.2569 0.0000813 Eth | $33,740.00 134,757.854 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0501% |
68 | Bitstamp | CRV-EUR | $0.2591 0.0000820 Eth | $30,782.00 118,819.411 CRV | 0.0442% |
69 | Coinbase Exchange | CRV-BTC | $0.2566 0.0000810 Eth | $26,688.00 104,011.960 CRV | 0.0387% |
70 | Bitfinex | CRV-USDT | $0.2566 0.0000810 Eth | $25,200.00 98,211.856 CRV | 0.0365% |
71 | Kraken | CRV-EUR | $0.2571 0.0000812 Eth | $23,234.00 90,374.677 CRV | 0.0336% |
72 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2568 0.0000811 Eth | $20,927.00 82,335.141 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0306% |
73 | OKX | CRV-BTC | $0.2579 0.0000814 Eth | $20,009.00 78,148.691 CRV | 0.0291% |
74 | Upbit | CRV-BTC | $0.2553 0.0000806 Eth | $16,968.51 66,456.949 CRV | 0.0247% |
75 | Bitlo | CRV-TRY | $0.258 0.0000814 Eth | $16,461.86 62,346.765 CRV | 0.0232% |
76 | Coinbase Exchange | CRV-GBP | $0.2566 0.0000810 Eth | $16,357.16 63,752.500 CRV | 0.0237% |
77 | Azbit | CRV-USDT | $0.2563 0.0000809 Eth | $13,493.55 51,245.173 CRV | 0.0191% |
78 | XT.COM | CRV-BTC | $0.2569 0.0000812 Eth | $12,814.84 68,773.700 CRV | 0.0256% |
79 | Bitstamp | CRV-USD | $0.2587 0.0000817 Eth | $12,319.49 47,620.747 CRV | 0.0177% |
80 | Gate.io | CRV-BTC | $0.2592 0.0000818 Eth | $9,265.60 36,086.256 CRV | 0.0134% |
81 | Bitazza | CRV-THB | $0.2586 0.0000816 Eth | $9,227.55 34,702.100 CRV | 0.0129% |
82 | Dex-Trade | CRV-BTC | $0.2566 0.0000810 Eth | $9,098.36 35,459.000 CRV | 0.0132% |
83 | Bitso | CRV-USD | $0.2561 0.0000809 Eth | $8,853.90 34,572.061 CRV | 0.0129% |
84 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.2581 0.0000816 Eth | $6,703.09 26,846.545 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0100% |
85 | Gate.io | CRV-ETH | $0.2571 0.0000812 Eth | $6,436.13 25,940.963 CRV | 0.0096% |
86 | Sushiswap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2576 0.0000812 Eth | $6,110.65 24,417.026 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0091% |
87 | Bitfinex | CRV-USD | $0.2581 0.0000815 Eth | $5,924.90 22,958.500 CRV | 0.0085% |
88 | WOO X | CRV-USDT | $0.257 0.0000812 Eth | $5,078.90 19,758.720 CRV | 0.0073% |
89 | Indodax | CRV-IDR | $0.2584 0.0000816 Eth | $4,981.43 19,280.644 CRV | 0.0072% |
90 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2554 0.0000806 Eth | $3,595.97 14,406.919 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0054% |
91 | Nonkyc.io | CRV-USDT | $0.2573 0.0000813 Eth | $2,785.95 10,584.336 CRV | 0.0039% |
92 | Kraken | CRV-XBT | $0.2566 0.0000810 Eth | $1,973.28 7,690.470 CRV | 0.0029% |
93 | Nonkyc.io | CRV-BTC | $0.2605 0.0000822 Eth | $975.13 3,800.697 CRV | 0.0014% |
94 | Mercado Bitcoin | CRV-BRL | $0.2581 0.0000815 Eth | $928.44 3,596.911 CRV | 0.0013% |
95 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XC3C7D422809852031B44AB29EEC9F1EFF2A58756 | $0.2585 0.0000817 Eth | $622.37 2,489.471 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0009% |
96 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $0.2582 0.0000816 Eth | $420.89 1,629.952 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0006% |
97 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2575 0.0000812 Eth | $316.10 1,242.941 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0005% |
98 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $0.2556 0.0000809 Eth | $209.35 820.740 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0003% |
99 | DeFi Swap | 0XA0B73E1FF0B80914AB6FE0444E65848C4C34450B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.2558 0.0000808 Eth | $193.62 2,196.376 0XA0B73E1FF0B80914AB6FE0444E65848C4C34450B | 0.0008% |
100 | Sushiswap (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.2575 0.0000812 Eth | $188.32 753.163 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0003% |
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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