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Overview
Max Total Supply
2,207,105,137.602793264613663296 CRV
Holders
88,914 ( 0.001%)
Market
Price
$0.97 @ 0.000282 ETH (+11.47%)
Onchain Market Cap
$2,138,764,392.63
Circulating Supply Market Cap
$1,217,281,341.37
Other Info
Token Contract (WITH 18 Decimals)
Balance
521,356.76303522 CRVValue
$505,213.49 ( ~147.0029 Eth) [0.0236%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Websea | CRV-USDT | $0.9656 0.0002801 Eth | $53,833,466.00 0.000 CRV | 0.0000% |
2 | OKX | CRV-USDT | $0.9642 0.0002799 Eth | $29,511,611.00 32,086,631.557 CRV | 9.9436% |
3 | Gate.io | CRV-USDT | $0.9638 0.0002797 Eth | $24,390,526.00 26,531,871.360 CRV | 8.2222% |
4 | Coinbase Exchange | CRV-USD | $0.969 0.0002810 Eth | $23,186,634.00 23,928,415.140 CRV | 7.4154% |
5 | HTX | CRV-USDT | $0.9671 0.0002807 Eth | $16,797,711.00 18,248,498.099 CRV | 5.6552% |
6 | Bitget | CRV-USDT | $0.9648 0.0002800 Eth | $14,965,638.00 16,077,023.279 CRV | 4.9822% |
7 | Bybit | CRV-USDT | $0.9648 0.0002800 Eth | $12,682,123.00 13,837,243.950 CRV | 4.2881% |
8 | MEXC | CRV-USDT | $0.971 0.0002815 Eth | $12,476,968.00 12,849,578.360 CRV | 3.9821% |
9 | Kraken | CRV-USD | $0.968 0.0002810 Eth | $10,341,354.00 10,683,216.703 CRV | 3.3107% |
10 | Azbit | CRV-USDT | $0.9643 0.0002796 Eth | $10,292,569.00 11,174,961.968 CRV | 3.4631% |
11 | Bitunix | CRV-USDT | $0.9697 0.0002811 Eth | $9,911,280.00 10,222,212.800 CRV | 3.1678% |
12 | Niza Global | CRV-USD | $0.968 0.0002810 Eth | $9,667,973.00 10,642,742.016 CRV | 3.2982% |
13 | XT.COM | CRV-USDT | $0.9687 0.0002807 Eth | $8,344,818.00 9,053,316.540 CRV | 2.8056% |
14 | Slex | CRV-USDT | $0.9663 0.0002805 Eth | $6,616,644.00 7,181,482.800 CRV | 2.2255% |
15 | DigiFinex | CRV-USDT | $0.9649 0.0002801 Eth | $6,228,018.00 6,454,347.100 CRV | 2.0002% |
16 | KuCoin | CRV-USDT | $0.9646 0.0002800 Eth | $5,468,567.00 5,669,312.119 CRV | 1.7569% |
17 | LBank | CRV-USDT | $0.969 0.0002809 Eth | $4,871,061.00 5,027,067.820 CRV | 1.5579% |
18 | BYDFi | CRV-USDT | $0.9666 0.0002798 Eth | $4,444,388.00 4,598,042.900 CRV | 1.4249% |
19 | FameEX | CRV-USDT | $0.9676 0.0002801 Eth | $4,274,157.00 4,642,629.722 CRV | 1.4387% |
20 | CoinW | CRV-USDT | $0.9703 0.0002814 Eth | $4,053,409.00 4,177,272.131 CRV | 1.2945% |
21 | Hotcoin | CRV-USDT | $0.9653 0.0002802 Eth | $3,819,998.00 3,957,357.600 CRV | 1.2264% |
22 | Dex-Trade | CRV-USDT | $0.9667 0.0002803 Eth | $3,819,239.00 3,950,935.400 CRV | 1.2244% |
23 | Bitrue | CRV-XRP | $0.9674 0.0002805 Eth | $3,773,039.00 3,900,009.440 CRV | 1.2086% |
24 | Phemex | CRV-USDT | $0.9689 0.0002809 Eth | $3,549,280.00 3,663,052.710 CRV | 1.1352% |
25 | Binance | CRV-TRY | $0.9706 0.0002813 Eth | $3,306,133.00 3,575,800.300 CRV | 1.1081% |
26 | FMFW.io | CRV-USDT | $0.9659 0.0002798 Eth | $3,104,660.00 3,214,347.800 CRV | 0.9961% |
27 | Trubit | CRV-USDT | $0.9646 0.0002800 Eth | $3,085,015.00 3,424,105.100 CRV | 1.0611% |
28 | Biconomy.com | CRV-USDT | $0.9688 0.0002808 Eth | $3,073,011.00 3,336,436.500 CRV | 1.0340% |
29 | Bitrue | CRV-USDT | $0.9658 0.0002796 Eth | $3,006,536.00 3,112,927.490 CRV | 0.9647% |
30 | HitBTC | CRV-USDT | $0.9688 0.0002808 Eth | $2,965,474.00 3,212,243.400 CRV | 0.9955% |
31 | Coinstore | CRV-USDT | $0.9662 0.0002802 Eth | $2,925,002.00 3,177,642.200 CRV | 0.9847% |
32 | Bitvavo | CRV-EUR | $0.9688 0.0002808 Eth | $2,653,839.00 2,739,274.891 CRV | 0.8489% |
33 | FMCPAY | CRV-USDT | $0.9651 0.0002801 Eth | $2,416,039.00 2,614,115.490 CRV | 0.8101% |
34 | BTSE | CRV-USDT | $0.967 0.0002810 Eth | $2,415,720.00 2,498,257.837 CRV | 0.7742% |
35 | Toobit | CRV-USDT | $0.9656 0.0002799 Eth | $2,141,627.00 2,323,383.900 CRV | 0.7200% |
36 | Luno | CRV-MYR | $0.9712 0.0002816 Eth | $1,962,812.00 2,021,005.480 CRV | 0.6263% |
37 | Bitkub | CRV-THB | $0.9701 0.0002814 Eth | $1,931,187.00 1,990,625.599 CRV | 0.6169% |
38 | Bullish | CRV-USDC | $0.9694 0.0002809 Eth | $1,863,861.00 2,029,550.378 CRV | 0.6290% |
39 | Ourbit | CRV-USDT | $0.9696 0.0002811 Eth | $1,852,439.00 2,011,206.720 CRV | 0.6233% |
40 | Binance | CRV-USDC | $0.9672 0.0002804 Eth | $1,810,215.00 1,959,530.400 CRV | 0.6073% |
41 | Bitrue | CRV-USDC | $0.9687 0.0002809 Eth | $1,786,360.00 1,843,992.530 CRV | 0.5715% |
42 | Hibt | CRV-USDT | $0.969 0.0002809 Eth | $1,770,274.00 1,923,308.016 CRV | 0.5960% |
43 | PointPay | CRV-USDT | $0.9688 0.0002808 Eth | $1,696,489.00 1,833,566.698 CRV | 0.5682% |
44 | CoinEx | CRV-USDT | $0.9672 0.0002805 Eth | $1,563,886.00 1,679,781.988 CRV | 0.5206% |
45 | BingX | CRV-USDT | $0.9656 0.0002803 Eth | $1,555,391.00 1,691,061.640 CRV | 0.5241% |
46 | WhiteBIT | CRV-BTC | $0.9707 0.0002814 Eth | $1,504,085.00 1,549,524.000 CRV | 0.4802% |
47 | WEEX | CRV-USDT | $0.9689 0.0002809 Eth | $1,503,412.00 1,551,727.736 CRV | 0.4809% |
48 | Binance | CRV-BTC | $0.9667 0.0002806 Eth | $1,309,826.00 1,378,356.600 CRV | 0.4272% |
49 | Kraken | CRV-EUR | $0.9649 0.0002801 Eth | $1,274,564.00 1,320,949.182 CRV | 0.4094% |
50 | BitMart | CRV-USDT | $0.9703 0.0002815 Eth | $1,223,381.00 1,260,774.320 CRV | 0.3907% |
51 | Niza Global | CRV-EUR | $0.965 0.0002801 Eth | $1,222,664.00 1,319,949.182 CRV | 0.4091% |
52 | Bit2Me | CRV-EUR | $0.9691 0.0002812 Eth | $1,188,928.00 1,294,136.245 CRV | 0.4011% |
53 | P2B | CRV-USD | $0.965 0.0002803 Eth | $860,965.00 892,191.370 CRV | 0.2765% |
54 | LocalTrade | CRV-USDT | $0.9683 0.0002810 Eth | $767,836.00 792,950.504 CRV | 0.2457% |
55 | WhiteBIT | CRV-TRY | $0.9675 0.0002805 Eth | $752,308.00 777,561.500 CRV | 0.2410% |
56 | Coinbase Exchange | CRV-GBP | $0.9694 0.0002811 Eth | $656,625.00 677,352.310 CRV | 0.2099% |
57 | BitDelta | CRV-USDT | $0.968 0.0002801 Eth | $624,328.00 680,806.500 CRV | 0.2110% |
58 | Coinbase Exchange | CRV-EUR | $0.9706 0.0002817 Eth | $619,540.00 638,274.090 CRV | 0.1978% |
59 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.97 0.0002812 Eth | $528,052.00 574,639.025 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1781% |
60 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.9691 0.0002810 Eth | $484,148.00 492,400.161 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1526% |
61 | Coinbase Exchange | CRV-BTC | $0.962 0.0002789 Eth | $454,573.00 472,553.650 CRV | 0.1464% |
62 | BloFin | CRV-USDT | $0.9663 0.0002800 Eth | $446,356.00 478,267.800 CRV | 0.1482% |
63 | Icrypex | CRV-USDT | $0.9683 0.0002808 Eth | $386,086.00 398,743.934 CRV | 0.1236% |
64 | Pionex | CRV-USDT | $0.9653 0.0002802 Eth | $342,665.00 370,263.909 CRV | 0.1147% |
65 | Tokenize | CRV-SGD | $0.9679 0.0002806 Eth | $337,868.00 349,068.646 CRV | 0.1082% |
66 | Tokenize | CRV-USD | $0.9693 0.0002811 Eth | $335,755.00 346,389.461 CRV | 0.1073% |
67 | OKX | CRV-USDC | $0.9682 0.0002810 Eth | $327,001.00 351,798.222 CRV | 0.1090% |
68 | Curve (Optimism) | 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $0.9645 0.0002795 Eth | $318,295.00 301,903.941 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6 | 0.0936% |
69 | Bitazza | CRV-USDT | $0.9591 0.0002780 Eth | $311,619.00 338,831.600 CRV | 0.1050% |
70 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.9679 0.0002806 Eth | $308,036.00 372,403.034 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.1154% |
71 | Nonkyc.io | CRV-USDT | $0.9663 0.0002801 Eth | $289,666.00 313,565.911 CRV | 0.0972% |
72 | Bitso | CRV-USD | $0.971 0.0002814 Eth | $280,460.00 288,833.446 CRV | 0.0895% |
73 | BVOX | CRV-USDT | $0.9687 0.0002807 Eth | $267,599.00 290,524.100 CRV | 0.0900% |
74 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.9777 0.0002834 Eth | $246,394.00 256,065.083 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0794% |
75 | Gemini | CRV-USD | $0.9663 0.0002805 Eth | $239,137.00 247,477.435 CRV | 0.0767% |
76 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.9705 0.0002813 Eth | $198,738.00 207,724.273 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0644% |
77 | WOO X | CRV-USDT | $0.9659 0.0002801 Eth | $189,693.00 196,381.916 CRV | 0.0609% |
78 | PancakeSwap V3 (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.9683 0.0002809 Eth | $155,859.00 165,324.495 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0512% |
79 | Deepcoin | CRV-USDT | $0.9678 0.0002806 Eth | $154,490.00 173,893.194 CRV | 0.0539% |
80 | BigONE | CRV-USDT | $0.9733 0.0002821 Eth | $135,116.00 138,819.219 CRV | 0.0430% |
81 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.9668 0.0002803 Eth | $122,267.00 131,184.735 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0407% |
82 | LATOKEN | CRV-USDT | $0.9666 0.0002803 Eth | $105,755.00 109,413.020 CRV | 0.0339% |
83 | CEX.IO | CRV-USD | $0.968 0.0002810 Eth | $90,897.00 101,854.054 CRV | 0.0316% |
84 | Binance US | CRV-USDT | $0.963 0.0002792 Eth | $57,794.00 60,015.929 CRV | 0.0186% |
85 | CEX.IO | CRV-USDT | $0.9688 0.0002809 Eth | $47,183.00 49,560.330 CRV | 0.0154% |
86 | TokoCrypto | CRV-USDT | $0.9709 0.0002813 Eth | $38,229.00 39,374.577 CRV | 0.0122% |
87 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.9687 0.0002807 Eth | $21,811.00 23,286.330 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0072% |
88 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $0.9699 0.0002812 Eth | $21,432.00 22,865.670 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0071% |
89 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.9686 0.0002811 Eth | $20,144.00 21,608.278 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0067% |
90 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $0.9717 0.0002818 Eth | $17,233.43 18,698.084 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0058% |
91 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $0.9702 0.0002816 Eth | $16,966.45 17,722.628 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0055% |
92 | HashKey Global | CRV-USDT | $0.9737 0.0002823 Eth | $15,594.80 16,900.500 CRV | 0.0052% |
93 | HitBTC | CRV-BTC | $0.9621 0.0002790 Eth | $12,336.95 13,044.300 CRV | 0.0040% |
94 | LATOKEN | CRV-BTC | $0.9753 0.0002825 Eth | $12,261.20 12,571.828 CRV | 0.0039% |
95 | MEXC | CRV-ETH | $0.9694 0.0002811 Eth | $9,500.71 9,800.591 CRV | 0.0030% |
96 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.9716 0.0002816 Eth | $3,427.42 3,535.404 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0011% |
97 | Sushiswap (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.9685 0.0002808 Eth | $2,141.99 2,283.711 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0007% |
98 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.9785 0.0002837 Eth | $1,186.86 1,259.819 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0004% |
99 | Luno | CRV-XBT | $0.9776 0.0002833 Eth | $1,041.93 1,065.800 CRV | 0.0003% |
100 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $0.9613 0.0002781 Eth | $589.42 639.936 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0002% |
Contract Source Code Verified (Exact Match)
Contract Name:
Vyper_contract
Compiler Version
vyper:0.2.4
Contract Source Code (Vyper language format)
# @version 0.2.4 """ @title Curve DAO Token @author Curve Finance @license MIT @notice ERC20 with piecewise-linear mining supply. @dev Based on the ERC-20 token standard as defined at https://eips.ethereum.org/EIPS/eip-20 """ from vyper.interfaces import ERC20 implements: ERC20 event Transfer: _from: indexed(address) _to: indexed(address) _value: uint256 event Approval: _owner: indexed(address) _spender: indexed(address) _value: uint256 event UpdateMiningParameters: time: uint256 rate: uint256 supply: uint256 event SetMinter: minter: address event SetAdmin: admin: address name: public(String[64]) symbol: public(String[32]) decimals: public(uint256) balanceOf: public(HashMap[address, uint256]) allowances: HashMap[address, HashMap[address, uint256]] total_supply: uint256 minter: public(address) admin: public(address) # General constants YEAR: constant(uint256) = 86400 * 365 # Allocation: # ========= # * shareholders - 30% # * emplyees - 3% # * DAO-controlled reserve - 5% # * Early users - 5% # == 43% == # left for inflation: 57% # Supply parameters INITIAL_SUPPLY: constant(uint256) = 1_303_030_303 INITIAL_RATE: constant(uint256) = 274_815_283 * 10 ** 18 / YEAR # leading to 43% premine RATE_REDUCTION_TIME: constant(uint256) = YEAR RATE_REDUCTION_COEFFICIENT: constant(uint256) = 1189207115002721024 # 2 ** (1/4) * 1e18 RATE_DENOMINATOR: constant(uint256) = 10 ** 18 INFLATION_DELAY: constant(uint256) = 86400 # Supply variables mining_epoch: public(int128) start_epoch_time: public(uint256) rate: public(uint256) start_epoch_supply: uint256 @external def __init__(_name: String[64], _symbol: String[32], _decimals: uint256): """ @notice Contract constructor @param _name Token full name @param _symbol Token symbol @param _decimals Number of decimals for token """ init_supply: uint256 = INITIAL_SUPPLY * 10 ** _decimals self.name = _name self.symbol = _symbol self.decimals = _decimals self.balanceOf[msg.sender] = init_supply self.total_supply = init_supply self.admin = msg.sender log Transfer(ZERO_ADDRESS, msg.sender, init_supply) self.start_epoch_time = block.timestamp + INFLATION_DELAY - RATE_REDUCTION_TIME self.mining_epoch = -1 self.rate = 0 self.start_epoch_supply = init_supply @internal def _update_mining_parameters(): """ @dev Update mining rate and supply at the start of the epoch Any modifying mining call must also call this """ _rate: uint256 = self.rate _start_epoch_supply: uint256 = self.start_epoch_supply self.start_epoch_time += RATE_REDUCTION_TIME self.mining_epoch += 1 if _rate == 0: _rate = INITIAL_RATE else: _start_epoch_supply += _rate * RATE_REDUCTION_TIME self.start_epoch_supply = _start_epoch_supply _rate = _rate * RATE_DENOMINATOR / RATE_REDUCTION_COEFFICIENT self.rate = _rate log UpdateMiningParameters(block.timestamp, _rate, _start_epoch_supply) @external def update_mining_parameters(): """ @notice Update mining rate and supply at the start of the epoch @dev Callable by any address, but only once per epoch Total supply becomes slightly larger if this function is called late """ assert block.timestamp >= self.start_epoch_time + RATE_REDUCTION_TIME # dev: too soon! self._update_mining_parameters() @external def start_epoch_time_write() -> uint256: """ @notice Get timestamp of the current mining epoch start while simultaneously updating mining parameters @return Timestamp of the epoch """ _start_epoch_time: uint256 = self.start_epoch_time if block.timestamp >= _start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() return self.start_epoch_time else: return _start_epoch_time @external def future_epoch_time_write() -> uint256: """ @notice Get timestamp of the next mining epoch start while simultaneously updating mining parameters @return Timestamp of the next epoch """ _start_epoch_time: uint256 = self.start_epoch_time if block.timestamp >= _start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() return self.start_epoch_time + RATE_REDUCTION_TIME else: return _start_epoch_time + RATE_REDUCTION_TIME @internal @view def _available_supply() -> uint256: return self.start_epoch_supply + (block.timestamp - self.start_epoch_time) * self.rate @external @view def available_supply() -> uint256: """ @notice Current number of tokens in existence (claimed or unclaimed) """ return self._available_supply() @external @view def mintable_in_timeframe(start: uint256, end: uint256) -> uint256: """ @notice How much supply is mintable from start timestamp till end timestamp @param start Start of the time interval (timestamp) @param end End of the time interval (timestamp) @return Tokens mintable from `start` till `end` """ assert start <= end # dev: start > end to_mint: uint256 = 0 current_epoch_time: uint256 = self.start_epoch_time current_rate: uint256 = self.rate # Special case if end is in future (not yet minted) epoch if end > current_epoch_time + RATE_REDUCTION_TIME: current_epoch_time += RATE_REDUCTION_TIME current_rate = current_rate * RATE_DENOMINATOR / RATE_REDUCTION_COEFFICIENT assert end <= current_epoch_time + RATE_REDUCTION_TIME # dev: too far in future for i in range(999): # Curve will not work in 1000 years. Darn! if end >= current_epoch_time: current_end: uint256 = end if current_end > current_epoch_time + RATE_REDUCTION_TIME: current_end = current_epoch_time + RATE_REDUCTION_TIME current_start: uint256 = start if current_start >= current_epoch_time + RATE_REDUCTION_TIME: break # We should never get here but what if... elif current_start < current_epoch_time: current_start = current_epoch_time to_mint += current_rate * (current_end - current_start) if start >= current_epoch_time: break current_epoch_time -= RATE_REDUCTION_TIME current_rate = current_rate * RATE_REDUCTION_COEFFICIENT / RATE_DENOMINATOR # double-division with rounding made rate a bit less => good assert current_rate <= INITIAL_RATE # This should never happen return to_mint @external def set_minter(_minter: address): """ @notice Set the minter address @dev Only callable once, when minter has not yet been set @param _minter Address of the minter """ assert msg.sender == self.admin # dev: admin only assert self.minter == ZERO_ADDRESS # dev: can set the minter only once, at creation self.minter = _minter log SetMinter(_minter) @external def set_admin(_admin: address): """ @notice Set the new admin. @dev After all is set up, admin only can change the token name @param _admin New admin address """ assert msg.sender == self.admin # dev: admin only self.admin = _admin log SetAdmin(_admin) @external @view def totalSupply() -> uint256: """ @notice Total number of tokens in existence. """ return self.total_supply @external @view def allowance(_owner : address, _spender : address) -> uint256: """ @notice Check the amount of tokens that an owner allowed to a spender @param _owner The address which owns the funds @param _spender The address which will spend the funds @return uint256 specifying the amount of tokens still available for the spender """ return self.allowances[_owner][_spender] @external def transfer(_to : address, _value : uint256) -> bool: """ @notice Transfer `_value` tokens from `msg.sender` to `_to` @dev Vyper does not allow underflows, so the subtraction in this function will revert on an insufficient balance @param _to The address to transfer to @param _value The amount to be transferred @return bool success """ assert _to != ZERO_ADDRESS # dev: transfers to 0x0 are not allowed self.balanceOf[msg.sender] -= _value self.balanceOf[_to] += _value log Transfer(msg.sender, _to, _value) return True @external def transferFrom(_from : address, _to : address, _value : uint256) -> bool: """ @notice Transfer `_value` tokens from `_from` to `_to` @param _from address The address which you want to send tokens from @param _to address The address which you want to transfer to @param _value uint256 the amount of tokens to be transferred @return bool success """ assert _to != ZERO_ADDRESS # dev: transfers to 0x0 are not allowed # NOTE: vyper does not allow underflows # so the following subtraction would revert on insufficient balance self.balanceOf[_from] -= _value self.balanceOf[_to] += _value self.allowances[_from][msg.sender] -= _value log Transfer(_from, _to, _value) return True @external def approve(_spender : address, _value : uint256) -> bool: """ @notice Approve `_spender` to transfer `_value` tokens on behalf of `msg.sender` @dev Approval may only be from zero -> nonzero or from nonzero -> zero in order to mitigate the potential race condition described here: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 @param _spender The address which will spend the funds @param _value The amount of tokens to be spent @return bool success """ assert _value == 0 or self.allowances[msg.sender][_spender] == 0 self.allowances[msg.sender][_spender] = _value log Approval(msg.sender, _spender, _value) return True @external def mint(_to: address, _value: uint256) -> bool: """ @notice Mint `_value` tokens and assign them to `_to` @dev Emits a Transfer event originating from 0x00 @param _to The account that will receive the created tokens @param _value The amount that will be created @return bool success """ assert msg.sender == self.minter # dev: minter only assert _to != ZERO_ADDRESS # dev: zero address if block.timestamp >= self.start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() _total_supply: uint256 = self.total_supply + _value assert _total_supply <= self._available_supply() # dev: exceeds allowable mint amount self.total_supply = _total_supply self.balanceOf[_to] += _value log Transfer(ZERO_ADDRESS, _to, _value) return True @external def burn(_value: uint256) -> bool: """ @notice Burn `_value` tokens belonging to `msg.sender` @dev Emits a Transfer event with a destination of 0x00 @param _value The amount that will be burned @return bool success """ self.balanceOf[msg.sender] -= _value self.total_supply -= _value log Transfer(msg.sender, ZERO_ADDRESS, _value) return True @external def set_name(_name: String[64], _symbol: String[32]): """ @notice Change the token name and symbol to `_name` and `_symbol` @dev Only callable by the admin account @param _name New token name @param _symbol New token symbol """ assert msg.sender == self.admin, "Only admin is allowed to change name" self.name = _name self.symbol = _symbol
Contract Security Audit
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Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000f43757276652044414f20546f6b656e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034352560000000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : _name (string): Curve DAO Token
Arg [1] : _symbol (string): CRV
Arg [2] : _decimals (uint256): 18
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000012
Arg [3] : 000000000000000000000000000000000000000000000000000000000000000f
Arg [4] : 43757276652044414f20546f6b656e0000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [6] : 4352560000000000000000000000000000000000000000000000000000000000
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