Overview
Max Total Supply
2,200,294,420.0826970171104088 CRV
Holders
88,501 ( -0.044%)
Market
Price
$1.18 @ 0.000294 ETH (+7.58%)
Onchain Market Cap
$2,594,872,638.28
Circulating Supply Market Cap
$1,469,967,068.10
Other Info
Token Contract (WITH 18 Decimals)
Balance
933.92503260428383886 CRVValue
$1,101.41 ( ~0.274200273052679 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.22 0.0003037 Eth | $267,329,205.00 230,131,596.100 CRV | 23.7080% |
2 | Websea | CRV-USDT | $1.21 0.0003016 Eth | $139,961,282.00 0.000 CRV | 0.0000% |
3 | WhiteBIT | CRV-USDT | $1.18 0.0002945 Eth | $106,679,377.00 90,396,350.724 CRV | 9.3126% |
4 | Gate.io | CRV-USDT | $1.22 0.0003036 Eth | $97,415,415.00 85,773,717.334 CRV | 8.8363% |
5 | OKX | CRV-USDT | $1.22 0.0003040 Eth | $69,717,408.00 60,666,915.769 CRV | 6.2499% |
6 | Bitget | CRV-USDT | $1.22 0.0003038 Eth | $55,807,699.00 48,125,172.264 CRV | 4.9578% |
7 | MEXC | CRV-USDT | $1.18 0.0002953 Eth | $51,548,899.00 43,517,944.420 CRV | 4.4832% |
8 | Coinbase Exchange | CRV-USD | $1.21 0.0003017 Eth | $48,108,232.00 39,739,163.940 CRV | 4.0939% |
9 | Bitunix | CRV-USDT | $1.22 0.0003036 Eth | $40,492,323.00 33,192,546.500 CRV | 3.4195% |
10 | Bybit | CRV-USDT | $1.22 0.0003032 Eth | $39,923,618.00 34,904,917.790 CRV | 3.5959% |
11 | HTX | CRV-USDT | $1.22 0.0003037 Eth | $35,243,367.00 31,296,017.821 CRV | 3.2241% |
12 | XT.COM | CRV-USDT | $1.18 0.0002943 Eth | $21,107,724.00 18,231,201.900 CRV | 1.8782% |
13 | Slex | CRV-USDT | $1.21 0.0003021 Eth | $19,945,963.00 17,771,555.900 CRV | 1.8308% |
14 | BIT | CRV-USDT | $1.19 0.0002954 Eth | $18,248,033.00 15,391,695.154 CRV | 1.5856% |
15 | BTSE | CRV-USDT | $1.21 0.0003019 Eth | $18,030,817.00 14,876,792.895 CRV | 1.5326% |
16 | DigiFinex | CRV-USDT | $1.22 0.0003038 Eth | $14,434,242.00 11,826,174.000 CRV | 1.2183% |
17 | Kraken | CRV-USD | $1.22 0.0003044 Eth | $12,391,757.00 10,132,262.849 CRV | 1.0438% |
18 | Niza Global | CRV-USD | $1.21 0.0003007 Eth | $11,379,227.00 10,078,853.426 CRV | 1.0383% |
19 | FameEX | CRV-USDT | $1.19 0.0002970 Eth | $10,620,205.00 9,147,951.185 CRV | 0.9424% |
20 | BYDFi | CRV-USDT | $1.19 0.0002959 Eth | $10,618,245.00 8,939,497.800 CRV | 0.9209% |
21 | LBank | CRV-USDT | $1.21 0.0003018 Eth | $10,557,907.00 8,713,234.280 CRV | 0.8976% |
22 | KuCoin | CRV-USDT | $1.22 0.0003026 Eth | $10,197,548.00 8,390,990.970 CRV | 0.8644% |
23 | Biconomy.com | CRV-USDT | $1.22 0.0003038 Eth | $8,238,487.00 7,179,626.874 CRV | 0.7396% |
24 | Dex-Trade | CRV-USDT | $1.20 0.0002986 Eth | $7,585,252.00 6,334,099.224 CRV | 0.6525% |
25 | CoinW | CRV-USDT | $1.18 0.0002950 Eth | $7,562,398.00 6,397,452.394 CRV | 0.6591% |
26 | Coinstore | CRV-USDT | $1.19 0.0002957 Eth | $6,404,687.00 5,536,062.500 CRV | 0.5703% |
27 | Binance | CRV-TRY | $1.23 0.0003051 Eth | $6,024,733.00 5,089,484.800 CRV | 0.5243% |
28 | Bitrue | CRV-USDT | $1.21 0.0003019 Eth | $5,995,863.00 4,942,981.160 CRV | 0.5092% |
29 | Hotcoin | CRV-USDT | $1.21 0.0003014 Eth | $5,932,782.00 4,903,208.100 CRV | 0.5051% |
30 | Currency.com | CRV-USD | $1.18 0.0002944 Eth | $5,637,872.00 4,780,896.000 CRV | 0.4925% |
31 | Binance | CRV-BTC | $1.22 0.0003040 Eth | $5,535,876.00 4,721,479.200 CRV | 0.4864% |
32 | Binance | CRV-USDC | $1.22 0.0003024 Eth | $5,510,208.00 4,761,368.000 CRV | 0.4905% |
33 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $1.19 0.0002981 Eth | $5,290,830.00 4,503,435.411 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.4639% |
34 | Toobit | CRV-USDT | $1.20 0.0003000 Eth | $5,278,736.00 4,544,516.200 CRV | 0.4682% |
35 | Bitkub | CRV-THB | $1.21 0.0003012 Eth | $5,216,922.00 4,313,663.441 CRV | 0.4444% |
36 | Luno | CRV-MYR | $1.18 0.0002942 Eth | $5,143,382.00 4,364,748.660 CRV | 0.4497% |
37 | BingX | CRV-USDT | $1.22 0.0003037 Eth | $4,846,462.00 4,195,072.569 CRV | 0.4322% |
38 | PointPay | CRV-USDT | $1.22 0.0003039 Eth | $4,411,944.00 3,794,830.000 CRV | 0.3909% |
39 | Bithumb | CRV-KRW | $1.19 0.0002959 Eth | $4,409,825.00 3,711,733.569 CRV | 0.3824% |
40 | Bullish | CRV-USDC | $1.18 0.0002946 Eth | $4,350,371.00 3,863,668.398 CRV | 0.3980% |
41 | Hibt | CRV-USDT | $1.18 0.0002944 Eth | $4,149,911.00 3,614,085.038 CRV | 0.3723% |
42 | Ourbit | CRV-USDT | $1.22 0.0003025 Eth | $4,097,627.00 3,542,820.000 CRV | 0.3650% |
43 | CoinEx | CRV-USDT | $1.19 0.0002962 Eth | $3,951,517.00 3,392,858.304 CRV | 0.3495% |
44 | Bitvavo | CRV-EUR | $1.18 0.0002947 Eth | $3,747,798.00 3,175,879.052 CRV | 0.3272% |
45 | Phemex | CRV-USDT | $1.21 0.0003020 Eth | $3,713,103.00 3,061,385.270 CRV | 0.3154% |
46 | FMCPAY | CRV-USDT | $1.21 0.0003006 Eth | $3,130,559.00 2,765,877.860 CRV | 0.2849% |
47 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.23 0.0003056 Eth | $3,051,847.00 2,541,365.953 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.2618% |
48 | Curve (Ethereum) | 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.23 0.0003062 Eth | $2,797,377.00 670.490 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | 0.0001% |
49 | Trubit | CRV-USDT | $1.21 0.0003015 Eth | $2,790,424.00 2,490,735.300 CRV | 0.2566% |
50 | WhiteBIT | CRV-BTC | $1.21 0.0003011 Eth | $2,592,222.00 2,144,008.900 CRV | 0.2209% |
51 | Kraken | CRV-EUR | $1.22 0.0003041 Eth | $2,464,465.00 2,017,123.276 CRV | 0.2078% |
52 | Icrypex | CRV-USDT | $1.19 0.0002980 Eth | $2,425,267.00 2,030,986.747 CRV | 0.2092% |
53 | Bit2Me | CRV-EUR | $1.22 0.0003044 Eth | $2,312,846.00 1,979,421.911 CRV | 0.2039% |
54 | Coinbase Exchange | CRV-EUR | $1.20 0.0003004 Eth | $2,144,022.00 1,779,767.750 CRV | 0.1834% |
55 | LocalTrade | CRV-USDT | $1.22 0.0003039 Eth | $1,899,611.00 1,555,954.854 CRV | 0.1603% |
56 | P2B | CRV-USD | $1.18 0.0002940 Eth | $1,579,890.00 1,342,302.720 CRV | 0.1383% |
57 | Upbit | CRV-BTC | $1.20 0.0002985 Eth | $1,574,853.00 1,313,262.346 CRV | 0.1353% |
58 | WEEX | CRV-USDT | $1.19 0.0002962 Eth | $1,502,622.00 1,264,031.012 CRV | 0.1302% |
59 | OKX | CRV-USDC | $1.22 0.0003036 Eth | $1,422,549.00 1,254,074.690 CRV | 0.1292% |
60 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.23 0.0003056 Eth | $1,284,295.00 174,829.469 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0180% |
61 | WhiteBIT | CRV-TRY | $1.22 0.0003026 Eth | $1,240,800.00 1,021,196.000 CRV | 0.1052% |
62 | LATOKEN | CRV-BTC | $1.21 0.0003012 Eth | $1,143,456.00 946,704.396 CRV | 0.0975% |
63 | BloFin | CRV-USDT | $1.22 0.0003040 Eth | $923,536.00 808,513.400 CRV | 0.0833% |
64 | Pionex | CRV-USDT | $1.19 0.0002964 Eth | $804,749.00 698,105.710 CRV | 0.0719% |
65 | Nonkyc.io | CRV-USDT | $1.18 0.0002948 Eth | $803,471.00 711,459.739 CRV | 0.0733% |
66 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.18 0.0002950 Eth | $746,708.00 656,646.919 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0676% |
67 | Bitso | CRV-USD | $1.21 0.0003019 Eth | $634,917.00 523,885.234 CRV | 0.0540% |
68 | Gemini | CRV-USD | $1.22 0.0003037 Eth | $594,037.00 486,915.648 CRV | 0.0502% |
69 | Bitazza | CRV-USDT | $1.18 0.0002951 Eth | $436,126.00 381,867.300 CRV | 0.0393% |
70 | Coinbase Exchange | CRV-GBP | $1.18 0.0002939 Eth | $430,616.00 365,334.630 CRV | 0.0376% |
71 | WEEX | CRV-USDC | $1.21 0.0003014 Eth | $421,768.00 375,915.000 CRV | 0.0387% |
72 | BigONE | CRV-USDT | $1.20 0.0003004 Eth | $415,822.00 345,177.709 CRV | 0.0356% |
73 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.20 0.0002984 Eth | $411,780.00 362,134.137 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0373% |
74 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.20 0.0002983 Eth | $362,861.00 133,171.872 0X4200000000000000000000000000000000000042 | 0.0137% |
75 | Coinbase Exchange | CRV-BTC | $1.21 0.0003014 Eth | $356,018.00 294,447.590 CRV | 0.0303% |
76 | Bitget | CRV-BTC | $1.22 0.0003029 Eth | $321,835.00 275,710.005 CRV | 0.0284% |
77 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.27 0.0003154 Eth | $277,308.00 217,406.274 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0224% |
78 | KickEX | CRV-USDT | $1.21 0.0003021 Eth | $275,195.00 226,888.130 CRV | 0.0234% |
79 | LATOKEN | CRV-USDT | $1.21 0.0003018 Eth | $242,021.00 199,751.761 CRV | 0.0206% |
80 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.20 0.0002991 Eth | $199,471.00 174,495.220 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0180% |
81 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $1.19 0.0002975 Eth | $188,902.00 161,170.945 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0166% |
82 | Dex-Trade | CRV-BTC | $1.18 0.0002953 Eth | $159,628.00 134,889.581 CRV | 0.0139% |
83 | TokoCrypto | CRV-USDT | $1.19 0.0002957 Eth | $134,954.00 113,694.991 CRV | 0.0117% |
84 | Sushiswap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.16 0.0002886 Eth | $112,661.00 98,129.789 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0101% |
85 | Globe | CRV-USDT | $1.22 0.0003040 Eth | $99,452.00 88,865.672 CRV | 0.0092% |
86 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.21 0.0003011 Eth | $94,776.00 81,301.092 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0084% |
87 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.20 0.0002980 Eth | $73,713.00 62,077.996 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0064% |
88 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.21 0.0003006 Eth | $38,297.00 32,828.430 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0034% |
89 | Nonkyc.io | CRV-BTC | $1.20 0.0002981 Eth | $30,300.00 26,747.637 CRV | 0.0028% |
90 | Korbit | CRV-KRW | $1.19 0.0002973 Eth | $23,989.00 21,019.926 CRV | 0.0022% |
91 | HashKey Global | CRV-USDT | $1.18 0.0002955 Eth | $15,552.61 13,906.400 CRV | 0.0014% |
92 | Luno | CRV-XBT | $1.21 0.0003012 Eth | $10,803.22 8,927.600 CRV | 0.0009% |
93 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.21 0.0003002 Eth | $5,932.22 5,219.221 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0005% |
94 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $1.18 0.0002953 Eth | $5,392.94 4,831.694 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0005% |
95 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $1.19 0.0002967 Eth | $5,334.47 4,492.121 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0005% |
96 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.18 0.0002948 Eth | $3,591.13 3,054.784 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0003% |
97 | Gravity Finance | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.18 0.0002936 Eth | $1,076.57 907.512 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
98 | Energiswap | 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E-0XA55F26319462355474A9F2C8790860776A329AA4 | $1.18 0.0002941 Eth | $437.71 386.961 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E | 0.0000% |
99 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.18 0.0002947 Eth | $301.85 258.328 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0000% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.18 0.0002956 Eth | $240.59 201.638 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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