Overview
Max Total Supply
2,207,195,699.392249066932039744 CRV
Holders
88,924 ( 0.009%)
Market
Price
$1.04 @ 0.000301 ETH (+12.53%)
Onchain Market Cap
$2,289,261,225.29
Circulating Supply Market Cap
$1,302,927,944.90
Other Info
Token Contract (WITH 18 Decimals)
Balance
20,418.48839299 CRVValue
$21,177.67 ( ~6.1423 Eth) [0.0009%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.037 0.0003009 Eth | $108,755,083.00 112,492,911.300 CRV | 25.3697% |
2 | Websea | CRV-USDT | $1.045 0.0003028 Eth | $54,301,581.00 0.000 CRV | 0.0000% |
3 | OKX | CRV-USDT | $1.039 0.0003014 Eth | $33,251,989.00 34,281,452.037 CRV | 7.7313% |
4 | Gate.io | CRV-USDT | $1.038 0.0003010 Eth | $26,996,122.00 27,877,980.700 CRV | 6.2871% |
5 | Coinbase Exchange | CRV-USD | $1.04 0.0003012 Eth | $24,512,458.00 23,569,670.920 CRV | 5.3155% |
6 | Bitget | CRV-USDT | $1.037 0.0003009 Eth | $20,908,290.00 21,389,251.103 CRV | 4.8238% |
7 | HTX | CRV-USDT | $1.037 0.0003008 Eth | $17,369,071.00 18,012,421.252 CRV | 4.0622% |
8 | MEXC | CRV-USDT | $1.043 0.0003021 Eth | $14,701,349.00 14,092,250.506 CRV | 3.1781% |
9 | Bybit | CRV-USDT | $1.04 0.0003017 Eth | $13,700,258.00 14,032,868.200 CRV | 3.1647% |
10 | Bitunix | CRV-USDT | $1.039 0.0003012 Eth | $10,550,288.00 10,156,733.600 CRV | 2.2906% |
11 | Azbit | CRV-USDT | $1.05 0.0003041 Eth | $10,480,036.00 10,854,308.708 CRV | 2.4479% |
12 | BIT | CRV-USDT | $1.037 0.0003002 Eth | $9,946,209.00 9,595,885.879 CRV | 2.1641% |
13 | XT.COM | CRV-USDT | $1.038 0.0003011 Eth | $8,466,080.00 8,740,910.540 CRV | 1.9713% |
14 | Kraken | CRV-USD | $1.038 0.0003011 Eth | $7,129,142.00 6,868,152.450 CRV | 1.5489% |
15 | Slex | CRV-USDT | $1.038 0.0003009 Eth | $6,832,052.00 7,073,756.000 CRV | 1.5953% |
16 | DigiFinex | CRV-USDT | $1.038 0.0003009 Eth | $6,671,587.00 6,430,213.900 CRV | 1.4502% |
17 | Niza Global | CRV-USD | $1.04 0.0003013 Eth | $6,668,046.00 6,882,646.829 CRV | 1.5522% |
18 | KuCoin | CRV-USDT | $1.039 0.0003013 Eth | $6,491,443.00 6,249,451.617 CRV | 1.4094% |
19 | LBank | CRV-USDT | $1.033 0.0002996 Eth | $4,901,351.00 4,746,487.440 CRV | 1.0704% |
20 | CoinW | CRV-USDT | $1.039 0.0003013 Eth | $4,731,560.00 4,554,852.410 CRV | 1.0272% |
21 | BYDFi | CRV-USDT | $1.049 0.0003036 Eth | $4,717,623.00 4,498,805.400 CRV | 1.0146% |
22 | FameEX | CRV-USDT | $1.041 0.0003016 Eth | $4,351,965.00 4,501,030.586 CRV | 1.0151% |
23 | Dex-Trade | CRV-USDT | $1.038 0.0003010 Eth | $3,960,842.00 3,816,573.400 CRV | 0.8607% |
24 | Bitrue | CRV-XRP | $1.038 0.0003010 Eth | $3,934,297.00 3,791,237.060 CRV | 0.8550% |
25 | Hotcoin | CRV-USDT | $1.048 0.0003035 Eth | $3,753,772.00 3,580,630.900 CRV | 0.8075% |
26 | Phemex | CRV-USDT | $1.039 0.0003013 Eth | $3,591,978.00 3,457,741.430 CRV | 0.7798% |
27 | Binance | CRV-TRY | $1.041 0.0003018 Eth | $3,416,672.00 3,466,259.400 CRV | 0.7817% |
28 | FMFW.io | CRV-USDT | $1.037 0.0003009 Eth | $3,379,746.00 3,258,397.800 CRV | 0.7348% |
29 | Bitrue | CRV-USDT | $1.039 0.0003010 Eth | $3,357,804.00 3,231,965.160 CRV | 0.7289% |
30 | HitBTC | CRV-USDT | $1.037 0.0003009 Eth | $3,151,651.00 3,258,397.800 CRV | 0.7348% |
31 | Biconomy.com | CRV-USDT | $1.038 0.0003011 Eth | $3,146,986.00 3,258,678.100 CRV | 0.7349% |
32 | Coinstore | CRV-USDT | $1.036 0.0003004 Eth | $2,961,835.00 3,066,114.200 CRV | 0.6915% |
33 | BTSE | CRV-USDT | $1.04 0.0003012 Eth | $2,615,252.00 2,515,291.041 CRV | 0.5673% |
34 | FMCPAY | CRV-USDT | $1.046 0.0003028 Eth | $2,584,255.00 2,670,513.810 CRV | 0.6023% |
35 | Bitkub | CRV-THB | $1.04 0.0003014 Eth | $2,558,126.00 2,460,573.434 CRV | 0.5549% |
36 | Luno | CRV-MYR | $1.039 0.0003014 Eth | $2,500,605.00 2,406,532.090 CRV | 0.5427% |
37 | Toobit | CRV-USDT | $1.037 0.0003007 Eth | $2,172,493.00 2,246,715.600 CRV | 0.5067% |
38 | Hibt | CRV-USDT | $1.038 0.0003011 Eth | $1,991,262.00 2,053,455.439 CRV | 0.4631% |
39 | Bitvavo | CRV-EUR | $1.053 0.0003049 Eth | $1,990,117.00 1,890,326.132 CRV | 0.4263% |
40 | Ourbit | CRV-USDT | $1.036 0.0003002 Eth | $1,932,935.00 2,002,835.030 CRV | 0.4517% |
41 | Bullish | CRV-USDC | $1.038 0.0003011 Eth | $1,930,998.00 1,991,820.251 CRV | 0.4492% |
42 | Binance | CRV-USDC | $1.04 0.0003012 Eth | $1,898,610.00 1,944,296.500 CRV | 0.4385% |
43 | WhiteBIT | CRV-BTC | $1.039 0.0003013 Eth | $1,878,487.00 1,808,055.400 CRV | 0.4078% |
44 | CoinEx | CRV-USDT | $1.037 0.0003007 Eth | $1,770,697.00 1,823,005.254 CRV | 0.4111% |
45 | BingX | CRV-USDT | $1.037 0.0003007 Eth | $1,665,968.00 1,714,932.810 CRV | 0.3868% |
46 | PointPay | CRV-USDT | $1.038 0.0003005 Eth | $1,665,223.00 1,720,650.878 CRV | 0.3880% |
47 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.039 0.0003015 Eth | $1,505,156.00 1,536,243.023 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3465% |
48 | WEEX | CRV-USDT | $1.038 0.0003010 Eth | $1,503,016.00 1,447,997.880 CRV | 0.3266% |
49 | Binance | CRV-BTC | $1.038 0.0003011 Eth | $1,460,421.00 1,486,538.900 CRV | 0.3352% |
50 | Coinbase Exchange | CRV-BTC | $1.043 0.0003021 Eth | $1,401,730.00 1,344,043.330 CRV | 0.3031% |
51 | Kraken | CRV-EUR | $1.048 0.0003039 Eth | $1,335,547.00 1,274,524.286 CRV | 0.2874% |
52 | Niza Global | CRV-EUR | $1.048 0.0003035 Eth | $1,239,791.00 1,274,534.986 CRV | 0.2874% |
53 | Bit2Me | CRV-EUR | $1.048 0.0003039 Eth | $1,236,794.00 1,249,055.212 CRV | 0.2817% |
54 | BitMart | CRV-USDT | $1.044 0.0003028 Eth | $1,235,305.00 1,183,134.700 CRV | 0.2668% |
55 | Curve (Ethereum) | 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.04 0.0003010 Eth | $1,088,262.00 295.348 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | 0.0001% |
56 | P2B | CRV-USD | $1.047 0.0003033 Eth | $936,725.00 894,675.020 CRV | 0.2018% |
57 | WhiteBIT | CRV-TRY | $1.041 0.0003018 Eth | $824,744.00 792,592.800 CRV | 0.1787% |
58 | Coinbase Exchange | CRV-EUR | $1.047 0.0003033 Eth | $810,422.00 773,853.450 CRV | 0.1745% |
59 | LocalTrade | CRV-USDT | $1.048 0.0003038 Eth | $807,374.00 770,064.025 CRV | 0.1737% |
60 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $1.032 0.0002992 Eth | $800,269.00 774,094.657 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1746% |
61 | BitDelta | CRV-USDT | $1.039 0.0003014 Eth | $657,391.00 681,593.100 CRV | 0.1537% |
62 | Icrypex | CRV-USDT | $1.041 0.0003013 Eth | $627,260.00 602,568.160 CRV | 0.1359% |
63 | Gemini | CRV-USD | $1.035 0.0003001 Eth | $618,958.00 598,142.870 CRV | 0.1349% |
64 | BloFin | CRV-USDT | $1.037 0.0003008 Eth | $578,993.00 589,798.500 CRV | 0.1330% |
65 | Coinbase Exchange | CRV-GBP | $1.048 0.0003035 Eth | $548,740.00 523,721.350 CRV | 0.1181% |
66 | OKX | CRV-USDC | $1.038 0.0003011 Eth | $514,308.00 525,569.469 CRV | 0.1185% |
67 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.048 0.0003038 Eth | $444,048.00 465,309.838 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1049% |
68 | Pionex | CRV-USDT | $1.044 0.0003023 Eth | $391,251.00 404,344.131 CRV | 0.0912% |
69 | Bitso | CRV-USD | $1.043 0.0003019 Eth | $387,558.00 371,569.768 CRV | 0.0838% |
70 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.036 0.0002999 Eth | $385,630.00 444,165.037 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.1002% |
71 | Tokenize | CRV-SGD | $1.04 0.0003015 Eth | $348,988.00 335,675.444 CRV | 0.0757% |
72 | Tokenize | CRV-USD | $1.039 0.0003005 Eth | $346,747.00 333,892.230 CRV | 0.0753% |
73 | Nonkyc.io | CRV-USDT | $1.04 0.0003010 Eth | $320,471.00 333,194.680 CRV | 0.0751% |
74 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.037 0.0003007 Eth | $281,317.00 52,698.129 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0119% |
75 | BVOX | CRV-USDT | $1.038 0.0003009 Eth | $278,604.00 289,342.400 CRV | 0.0653% |
76 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.034 0.0002999 Eth | $238,364.00 245,085.587 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0553% |
77 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.039 0.0003014 Eth | $222,133.00 224,475.489 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0506% |
78 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.04 0.0003017 Eth | $209,560.00 213,614.498 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0482% |
79 | PancakeSwap V3 (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.044 0.0003027 Eth | $159,821.00 164,096.659 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0370% |
80 | Deepcoin | CRV-USDT | $1.039 0.0003008 Eth | $157,657.00 164,231.800 CRV | 0.0370% |
81 | BigONE | CRV-USDT | $1.045 0.0003029 Eth | $132,911.00 127,138.406 CRV | 0.0287% |
82 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.04 0.0003016 Eth | $114,245.00 118,092.563 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0266% |
83 | LATOKEN | CRV-USDT | $1.045 0.0003026 Eth | $107,181.00 102,609.704 CRV | 0.0231% |
84 | Globe | CRV-USDT | $1.04 0.0003016 Eth | $46,244.00 48,598.555 CRV | 0.0110% |
85 | CEX.IO | CRV-USDT | $1.039 0.0003014 Eth | $45,419.00 47,544.005 CRV | 0.0107% |
86 | TokoCrypto | CRV-USDT | $1.04 0.0003013 Eth | $42,136.00 40,523.013 CRV | 0.0091% |
87 | Sushiswap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.04 0.0003015 Eth | $39,991.00 40,836.864 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0092% |
88 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.039 0.0003015 Eth | $37,372.00 38,233.803 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0086% |
89 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $1.039 0.0003012 Eth | $28,751.00 29,524.656 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0067% |
90 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.041 0.0003019 Eth | $27,741.00 28,290.351 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0064% |
91 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.042 0.0003021 Eth | $21,379.00 21,734.292 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0049% |
92 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.04 0.0003016 Eth | $21,330.00 21,555.421 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0049% |
93 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.037 0.0003008 Eth | $15,043.49 15,539.148 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0035% |
94 | HitBTC | CRV-BTC | $1.039 0.0003014 Eth | $13,817.48 14,060.500 CRV | 0.0032% |
95 | LATOKEN | CRV-BTC | $1.033 0.0002997 Eth | $12,502.60 12,101.235 CRV | 0.0027% |
96 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.035 0.0003001 Eth | $3,896.97 3,967.001 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0009% |
97 | Luno | CRV-XBT | $1.042 0.0003020 Eth | $831.05 797.800 CRV | 0.0002% |
98 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $1.033 0.0002992 Eth | $681.02 697.296 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0002% |
99 | Energiswap | 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E-0XA55F26319462355474A9F2C8790860776A329AA4 | $1.042 0.0003018 Eth | $186.57 196.009 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E | 0.0000% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.035 0.0003003 Eth | $82.14 83.644 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
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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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