Overview
Max Total Supply
2,200,223,242.609466344466161455 CRV
Holders
88,499 ( -0.027%)
Market
Price
$1.12 @ 0.000287 ETH (+5.64%)
Onchain Market Cap
$2,460,655,645.49
Circulating Supply Market Cap
$1,393,747,713.49
Other Info
Token Contract (WITH 18 Decimals)
Balance
1,041.66 CRVValue
$1,164.96 ( ~0.299385478188636 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.12 0.0002884 Eth | $192,574,727.00 174,210,056.100 CRV | 19.9154% |
2 | Gate.io | CRV-USDT | $1.12 0.0002873 Eth | $103,981,034.00 94,060,021.856 CRV | 10.7528% |
3 | Websea | CRV-USDT | $1.12 0.0002880 Eth | $100,456,331.00 0.000 CRV | 0.0000% |
4 | WhiteBIT | CRV-USDT | $1.11 0.0002860 Eth | $91,591,660.00 82,215,832.080 CRV | 9.3988% |
5 | OKX | CRV-USDT | $1.12 0.0002875 Eth | $63,703,099.00 57,648,506.886 CRV | 6.5903% |
6 | MEXC | CRV-USDT | $1.12 0.0002867 Eth | $54,958,125.00 49,203,168.290 CRV | 5.6248% |
7 | Bitget | CRV-USDT | $1.12 0.0002880 Eth | $50,556,568.00 45,329,727.650 CRV | 5.1820% |
8 | Coinbase Exchange | CRV-USD | $1.12 0.0002885 Eth | $37,470,066.00 33,336,357.910 CRV | 3.8110% |
9 | Bybit | CRV-USDT | $1.12 0.0002872 Eth | $36,383,646.00 32,874,574.020 CRV | 3.7582% |
10 | HTX | CRV-USDT | $1.12 0.0002881 Eth | $35,213,074.00 31,958,714.714 CRV | 3.6535% |
11 | Bitunix | CRV-USDT | $1.12 0.0002867 Eth | $31,249,384.00 27,982,372.500 CRV | 3.1989% |
12 | Slex | CRV-USDT | $1.12 0.0002865 Eth | $20,322,503.00 18,462,213.200 CRV | 2.1106% |
13 | BTSE | CRV-USDT | $1.12 0.0002868 Eth | $17,307,376.00 15,490,826.798 CRV | 1.7709% |
14 | BIT | CRV-USDT | $1.12 0.0002884 Eth | $16,573,855.00 14,751,367.295 CRV | 1.6864% |
15 | XT.COM | CRV-USDT | $1.13 0.0002888 Eth | $15,562,527.00 14,084,296.900 CRV | 1.6101% |
16 | LBank | CRV-USDT | $1.12 0.0002880 Eth | $12,976,822.00 11,567,221.160 CRV | 1.3223% |
17 | DigiFinex | CRV-USDT | $1.12 0.0002874 Eth | $10,808,342.00 9,653,877.500 CRV | 1.1036% |
18 | Kraken | CRV-USD | $1.12 0.0002883 Eth | $10,097,121.00 8,991,203.394 CRV | 1.0279% |
19 | Niza Global | CRV-USD | $1.12 0.0002862 Eth | $9,871,542.00 8,990,884.983 CRV | 1.0278% |
20 | Currency.com | CRV-USD | $1.11 0.0002861 Eth | $8,313,376.00 7,457,280.000 CRV | 0.8525% |
21 | KuCoin | CRV-USDT | $1.11 0.0002862 Eth | $8,076,041.00 7,244,633.894 CRV | 0.8282% |
22 | Hotcoin | CRV-USDT | $1.12 0.0002870 Eth | $7,964,905.00 7,125,811.600 CRV | 0.8146% |
23 | FameEX | CRV-USDT | $1.12 0.0002872 Eth | $7,698,672.00 6,964,949.808 CRV | 0.7962% |
24 | BYDFi | CRV-USDT | $1.11 0.0002858 Eth | $7,610,227.00 6,837,206.000 CRV | 0.7816% |
25 | CoinW | CRV-USDT | $1.12 0.0002869 Eth | $6,718,989.00 6,011,689.699 CRV | 0.6872% |
26 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.12 0.0002878 Eth | $6,468,159.00 5,804,618.159 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.6636% |
27 | Biconomy.com | CRV-USDT | $1.12 0.0002869 Eth | $5,627,650.00 5,099,163.715 CRV | 0.5829% |
28 | Binance | CRV-USDC | $1.12 0.0002880 Eth | $5,321,119.00 4,805,400.400 CRV | 0.5493% |
29 | Coinstore | CRV-USDT | $1.12 0.0002869 Eth | $5,028,334.00 4,545,908.000 CRV | 0.5197% |
30 | FMFW.io | CRV-USDT | $1.12 0.0002875 Eth | $4,982,623.00 4,439,646.900 CRV | 0.5075% |
31 | HitBTC | CRV-USDT | $1.12 0.0002865 Eth | $4,858,908.00 4,402,516.900 CRV | 0.5033% |
32 | Dex-Trade | CRV-USDT | $1.12 0.0002865 Eth | $4,473,544.00 4,007,789.001 CRV | 0.4582% |
33 | Binance | CRV-BTC | $1.12 0.0002871 Eth | $4,206,441.00 3,902,326.000 CRV | 0.4461% |
34 | Bitvavo | CRV-EUR | $1.12 0.0002876 Eth | $4,086,877.00 3,647,841.673 CRV | 0.4170% |
35 | Bullish | CRV-USDC | $1.12 0.0002864 Eth | $3,942,472.00 3,580,470.195 CRV | 0.4093% |
36 | Toobit | CRV-USDT | $1.12 0.0002871 Eth | $3,831,628.00 3,466,130.000 CRV | 0.3962% |
37 | Binance | CRV-TRY | $1.12 0.0002867 Eth | $3,815,636.00 3,433,589.600 CRV | 0.3925% |
38 | BingX | CRV-USDT | $1.12 0.0002880 Eth | $3,805,013.00 3,437,860.585 CRV | 0.3930% |
39 | Phemex | CRV-USDT | $1.13 0.0002896 Eth | $3,597,418.00 3,187,395.180 CRV | 0.3644% |
40 | Trubit | CRV-USDT | $1.11 0.0002861 Eth | $3,514,478.00 3,195,835.800 CRV | 0.3653% |
41 | Ourbit | CRV-USDT | $1.12 0.0002878 Eth | $3,140,474.00 2,841,639.080 CRV | 0.3249% |
42 | PointPay | CRV-USDT | $1.12 0.0002863 Eth | $3,129,437.00 2,827,980.582 CRV | 0.3233% |
43 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.12 0.0002874 Eth | $2,889,139.00 2,601,758.822 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.2974% |
44 | FMCPAY | CRV-USDT | $1.12 0.0002869 Eth | $2,847,061.00 2,579,353.670 CRV | 0.2949% |
45 | Luno | CRV-MYR | $1.12 0.0002872 Eth | $2,618,273.00 2,340,389.800 CRV | 0.2675% |
46 | Curve (Ethereum) | 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.10 0.0002824 Eth | $2,591,584.00 667.422 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | 0.0001% |
47 | Bithumb | CRV-KRW | $1.10 0.0002828 Eth | $2,583,091.00 2,344,965.910 CRV | 0.2681% |
48 | Bitkub | CRV-THB | $1.12 0.0002873 Eth | $2,547,595.00 2,276,766.661 CRV | 0.2603% |
49 | CoinEx | CRV-USDT | $1.13 0.0002893 Eth | $2,332,397.00 2,108,681.912 CRV | 0.2411% |
50 | Coinbase Exchange | CRV-EUR | $1.12 0.0002869 Eth | $2,071,521.00 1,853,534.410 CRV | 0.2119% |
51 | BitMart | CRV-USDT | $1.12 0.0002875 Eth | $1,967,388.00 1,756,494.160 CRV | 0.2008% |
52 | Icrypex | CRV-USDT | $1.11 0.0002860 Eth | $1,898,217.00 1,703,994.089 CRV | 0.1948% |
53 | OKX | CRV-USDC | $1.12 0.0002875 Eth | $1,596,511.00 1,444,909.260 CRV | 0.1652% |
54 | WEEX | CRV-USDT | $1.12 0.0002869 Eth | $1,502,251.00 1,344,111.104 CRV | 0.1537% |
55 | Kraken | CRV-EUR | $1.12 0.0002880 Eth | $1,236,690.00 1,102,485.375 CRV | 0.1260% |
56 | Upbit | CRV-BTC | $1.12 0.0002868 Eth | $1,154,056.00 1,032,903.351 CRV | 0.1181% |
57 | P2B | CRV-USD | $1.13 0.0002889 Eth | $1,111,822.00 987,408.850 CRV | 0.1129% |
58 | WhiteBIT | CRV-TRY | $1.11 0.0002862 Eth | $905,396.00 812,073.400 CRV | 0.0928% |
59 | Pionex | CRV-USDT | $1.12 0.0002875 Eth | $895,769.00 808,332.725 CRV | 0.0924% |
60 | BitDelta | CRV-USDT | $1.12 0.0002868 Eth | $884,592.00 801,855.400 CRV | 0.0917% |
61 | Bitso | CRV-USD | $1.13 0.0002904 Eth | $841,818.00 742,645.405 CRV | 0.0849% |
62 | Nonkyc.io | CRV-USDT | $1.12 0.0002871 Eth | $815,956.00 740,291.865 CRV | 0.0846% |
63 | LATOKEN | CRV-BTC | $1.12 0.0002868 Eth | $807,301.00 722,628.753 CRV | 0.0826% |
64 | Gemini | CRV-USD | $1.12 0.0002882 Eth | $587,186.00 522,965.612 CRV | 0.0598% |
65 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.12 0.0002868 Eth | $566,369.00 512,213.976 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0586% |
66 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.13 0.0002890 Eth | $541,390.00 485,324.125 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0555% |
67 | BigONE | CRV-USDT | $1.12 0.0002859 Eth | $488,039.00 437,355.953 CRV | 0.0500% |
68 | WEEX | CRV-USDC | $1.12 0.0002873 Eth | $415,722.00 378,029.000 CRV | 0.0432% |
69 | Bitazza | CRV-USDT | $1.12 0.0002881 Eth | $396,100.00 358,547.300 CRV | 0.0410% |
70 | Curve (Arbitrum) | 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.12 0.0002870 Eth | $389,903.00 386,469.852 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5 | 0.0442% |
71 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.13 0.0002894 Eth | $386,039.00 348,909.765 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0399% |
72 | Coinbase Exchange | CRV-GBP | $1.12 0.0002869 Eth | $377,120.00 337,408.130 CRV | 0.0386% |
73 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.12 0.0002871 Eth | $375,885.00 327,531.647 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0374% |
74 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.11 0.0002862 Eth | $334,319.00 129,282.527 0X4200000000000000000000000000000000000042 | 0.0148% |
75 | KickEX | CRV-USDT | $1.12 0.0002875 Eth | $248,519.00 221,921.264 CRV | 0.0254% |
76 | Bitget | CRV-BTC | $1.12 0.0002883 Eth | $241,013.00 219,553.334 CRV | 0.0251% |
77 | LATOKEN | CRV-USDT | $1.12 0.0002874 Eth | $178,635.00 159,546.200 CRV | 0.0182% |
78 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.12 0.0002878 Eth | $169,492.00 153,544.207 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0176% |
79 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.13 0.0002900 Eth | $107,659.00 92,295.045 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0106% |
80 | Dex-Trade | CRV-BTC | $1.12 0.0002880 Eth | $102,086.00 90,988.330 CRV | 0.0104% |
81 | Korbit | CRV-KRW | $1.10 0.0002832 Eth | $99,202.00 88,540.724 CRV | 0.0101% |
82 | Globe | CRV-USDT | $1.13 0.0002889 Eth | $92,284.00 83,902.605 CRV | 0.0096% |
83 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.12 0.0002864 Eth | $60,619.00 54,471.577 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0062% |
84 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.12 0.0002862 Eth | $36,050.00 32,450.373 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0037% |
85 | Nonkyc.io | CRV-BTC | $1.11 0.0002852 Eth | $32,312.00 30,067.201 CRV | 0.0034% |
86 | Luno | CRV-ZAR | $1.14 0.0002923 Eth | $30,047.00 26,386.860 CRV | 0.0030% |
87 | Gate.io | CRV-ETH | $1.12 0.0002878 Eth | $26,556.00 23,730.850 CRV | 0.0027% |
88 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.12 0.0002875 Eth | $16,313.74 14,761.055 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0017% |
89 | HashKey Global | CRV-USDT | $1.12 0.0002873 Eth | $16,101.20 14,669.700 CRV | 0.0017% |
90 | DeFi Swap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.10 0.0002826 Eth | $8,631.90 7,844.011 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0009% |
91 | Luno | CRV-XBT | $1.12 0.0002873 Eth | $8,017.26 7,163.900 CRV | 0.0008% |
92 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $1.12 0.0002886 Eth | $5,910.42 5,340.190 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0006% |
93 | Sushiswap (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.12 0.0002868 Eth | $5,829.10 5,193.474 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0006% |
94 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.12 0.0002858 Eth | $5,542.87 4,995.956 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0006% |
95 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.13 0.0002899 Eth | $1,398.57 1,241.450 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0001% |
96 | Gravity Finance | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.12 0.0002884 Eth | $877.80 783.921 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
97 | Energiswap | 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E-0XA55F26319462355474A9F2C8790860776A329AA4 | $1.12 0.0002864 Eth | $394.14 349.079 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E | 0.0000% |
98 | Swapr (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.11 0.0002860 Eth | $256.38 229.348 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0000% |
99 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.12 0.0002885 Eth | $245.07 221.772 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0000% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.12 0.0002858 Eth | $192.39 172.680 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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