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Overview
Max Total Supply
2,201,500,756.155325826806565298 CRV
Holders
88,615 ( -0.111%)
Market
Price
$1.20 @ 0.000300 ETH (+2.95%)
Onchain Market Cap
$2,644,442,307.88
Circulating Supply Market Cap
$1,500,966,925.21
Other Info
Token Contract (WITH 18 Decimals)
Balance
933.92503260428383886 CRVValue
$1,121.83 ( ~0.280296782118658 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.22 0.0003055 Eth | $114,229,340.00 95,830,684.100 CRV | 26.0337% |
2 | Gate.io | CRV-USDT | $1.22 0.0003045 Eth | $34,038,335.00 28,608,839.190 CRV | 7.7720% |
3 | OKX | CRV-USDT | $1.22 0.0003059 Eth | $32,199,831.00 27,003,859.781 CRV | 7.3360% |
4 | Slex | CRV-USDT | $1.21 0.0003029 Eth | $22,850,005.00 19,241,140.300 CRV | 5.2271% |
5 | Bitget | CRV-USDT | $1.22 0.0003044 Eth | $21,087,010.00 17,550,929.439 CRV | 4.7679% |
6 | Bybit | CRV-USDT | $1.22 0.0003051 Eth | $16,893,691.00 14,199,696.950 CRV | 3.8575% |
7 | Bitunix | CRV-USDT | $1.22 0.0003055 Eth | $16,508,115.00 13,503,943.200 CRV | 3.6685% |
8 | MEXC | CRV-USDT | $1.22 0.0003038 Eth | $16,357,829.00 13,459,991.359 CRV | 3.6566% |
9 | Coinbase Exchange | CRV-USD | $1.22 0.0003049 Eth | $15,508,918.00 12,715,354.630 CRV | 3.4543% |
10 | BTSE | CRV-USDT | $1.22 0.0003056 Eth | $12,717,585.00 10,401,541.390 CRV | 2.8257% |
11 | XT.COM | CRV-USDT | $1.21 0.0003032 Eth | $9,266,675.00 7,773,517.100 CRV | 2.1118% |
12 | HTX | CRV-USDT | $1.22 0.0003046 Eth | $9,211,027.00 7,714,233.469 CRV | 2.0957% |
13 | DigiFinex | CRV-USDT | $1.22 0.0003046 Eth | $6,413,304.00 5,261,706.200 CRV | 1.4294% |
14 | LBank | CRV-USDT | $1.22 0.0003039 Eth | $5,247,922.00 4,318,561.370 CRV | 1.1732% |
15 | CoinW | CRV-USDT | $1.22 0.0003040 Eth | $4,693,524.00 3,861,459.983 CRV | 1.0490% |
16 | BYDFi | CRV-USDT | $1.22 0.0003042 Eth | $4,572,743.00 3,758,997.900 CRV | 1.0212% |
17 | FameEX | CRV-USDT | $1.22 0.0003059 Eth | $4,566,634.00 3,830,347.977 CRV | 1.0406% |
18 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.22 0.0003046 Eth | $4,127,497.00 3,402,376.640 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.9243% |
19 | KuCoin | CRV-USDT | $1.22 0.0003060 Eth | $3,900,399.00 3,186,638.632 CRV | 0.8657% |
20 | Dex-Trade | CRV-USDT | $1.20 0.0003007 Eth | $3,891,892.00 3,239,511.300 CRV | 0.8801% |
21 | Biconomy.com | CRV-USDT | $1.22 0.0003047 Eth | $3,749,145.00 3,147,469.100 CRV | 0.8551% |
22 | Bitrue | CRV-XRP | $1.21 0.0003037 Eth | $3,671,505.00 3,023,022.310 CRV | 0.8212% |
23 | Bitvavo | CRV-EUR | $1.21 0.0003037 Eth | $3,529,755.00 2,907,255.290 CRV | 0.7898% |
24 | Kraken | CRV-USD | $1.22 0.0003049 Eth | $3,497,714.00 2,866,978.709 CRV | 0.7789% |
25 | Trubit | CRV-USDT | $1.22 0.0003040 Eth | $3,453,962.00 2,900,574.000 CRV | 0.7880% |
26 | Phemex | CRV-USDT | $1.22 0.0003051 Eth | $3,307,095.00 2,709,437.470 CRV | 0.7361% |
27 | Coinstore | CRV-USDT | $1.22 0.0003052 Eth | $3,152,106.00 2,640,442.100 CRV | 0.7173% |
28 | FMCPAY | CRV-USDT | $1.21 0.0003038 Eth | $2,967,798.00 2,495,475.180 CRV | 0.6779% |
29 | Bullish | CRV-USDC | $1.22 0.0003039 Eth | $2,881,596.00 2,423,974.930 CRV | 0.6585% |
30 | FMFW.io | CRV-USDT | $1.22 0.0003050 Eth | $2,869,060.00 2,351,163.100 CRV | 0.6387% |
31 | Bitrue | CRV-USDT | $1.22 0.0003056 Eth | $2,843,341.00 2,325,124.980 CRV | 0.6317% |
32 | HitBTC | CRV-USDT | $1.22 0.0003053 Eth | $2,800,811.00 2,351,075.300 CRV | 0.6387% |
33 | Bitkub | CRV-THB | $1.21 0.0003035 Eth | $2,467,082.00 2,033,069.133 CRV | 0.5523% |
34 | BingX | CRV-USDT | $1.22 0.0003046 Eth | $2,359,941.00 1,986,908.762 CRV | 0.5398% |
35 | Binance | CRV-TRY | $1.23 0.0003062 Eth | $2,348,346.00 1,956,459.900 CRV | 0.5315% |
36 | Toobit | CRV-USDT | $1.21 0.0003038 Eth | $2,295,812.00 1,926,473.900 CRV | 0.5234% |
37 | Binance | CRV-BTC | $1.22 0.0003051 Eth | $2,208,917.00 1,856,235.700 CRV | 0.5043% |
38 | Luno | CRV-MYR | $1.22 0.0003049 Eth | $1,993,611.00 1,633,818.790 CRV | 0.4438% |
39 | Hibt | CRV-USDT | $1.21 0.0003037 Eth | $1,928,844.00 1,617,592.384 CRV | 0.4394% |
40 | PointPay | CRV-USDT | $1.21 0.0003030 Eth | $1,898,533.00 1,592,500.113 CRV | 0.4326% |
41 | Ourbit | CRV-USDT | $1.20 0.0003001 Eth | $1,885,404.00 1,582,011.550 CRV | 0.4298% |
42 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $1.20 0.0003004 Eth | $1,814,901.00 1,446,688.388 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3930% |
43 | CoinEx | CRV-USDT | $1.22 0.0003042 Eth | $1,675,759.00 1,411,464.707 CRV | 0.3834% |
44 | Binance | CRV-USDC | $1.22 0.0003054 Eth | $1,583,078.00 1,337,014.700 CRV | 0.3632% |
45 | WEEX | CRV-USDT | $1.21 0.0003037 Eth | $1,504,708.00 1,238,991.675 CRV | 0.3366% |
46 | Bithumb | CRV-KRW | $1.20 0.0002993 Eth | $1,337,440.00 1,116,754.820 CRV | 0.3034% |
47 | Curve (Ethereum) | 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.20 0.0003008 Eth | $1,283,075.00 1,249,683.525 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E | 0.3395% |
48 | BitMart | CRV-USDT | $1.22 0.0003037 Eth | $1,159,649.00 954,303.560 CRV | 0.2592% |
49 | WhiteBIT | CRV-BTC | $1.21 0.0003031 Eth | $1,149,703.00 948,680.500 CRV | 0.2577% |
50 | Currency.com | CRV-USD | $1.22 0.0003056 Eth | $1,148,112.00 939,036.000 CRV | 0.2551% |
51 | P2B | CRV-USD | $1.21 0.0003034 Eth | $907,138.00 747,846.280 CRV | 0.2032% |
52 | Icrypex | CRV-USDT | $1.20 0.0003005 Eth | $877,968.00 730,840.227 CRV | 0.1985% |
53 | OKX | CRV-USDC | $1.22 0.0003055 Eth | $813,408.00 683,086.908 CRV | 0.1856% |
54 | LocalTrade | CRV-USDT | $1.21 0.0003019 Eth | $780,967.00 647,311.799 CRV | 0.1759% |
55 | Hotcoin | CRV-USDT | $1.22 0.0003039 Eth | $659,724.00 542,896.000 CRV | 0.1475% |
56 | BitDelta | CRV-USDT | $1.20 0.0003004 Eth | $653,398.00 549,440.500 CRV | 0.1493% |
57 | Kraken | CRV-EUR | $1.21 0.0003020 Eth | $547,296.00 452,931.752 CRV | 0.1230% |
58 | Bit2Me | CRV-EUR | $1.20 0.0002995 Eth | $526,566.00 443,822.388 CRV | 0.1206% |
59 | Coinbase Exchange | CRV-EUR | $1.22 0.0003049 Eth | $475,954.00 390,207.120 CRV | 0.1060% |
60 | Bitso | CRV-USD | $1.22 0.0003049 Eth | $470,223.00 385,318.249 CRV | 0.1047% |
61 | WhiteBIT | CRV-TRY | $1.22 0.0003060 Eth | $469,193.00 383,193.900 CRV | 0.1041% |
62 | LATOKEN | CRV-BTC | $1.22 0.0003036 Eth | $436,935.00 359,592.197 CRV | 0.0977% |
63 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.20 0.0003006 Eth | $416,118.00 356,397.651 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0968% |
64 | BloFin | CRV-USDT | $1.22 0.0003046 Eth | $387,482.00 325,998.800 CRV | 0.0886% |
65 | Gemini | CRV-USD | $1.21 0.0003032 Eth | $361,841.00 298,302.698 CRV | 0.0810% |
66 | AscendEX (BitMax) | CRV-USDT | $1.22 0.0003053 Eth | $361,788.00 296,193.300 CRV | 0.0805% |
67 | WEEX | CRV-USDC | $1.22 0.0003040 Eth | $346,016.00 290,683.000 CRV | 0.0790% |
68 | Upbit | CRV-BTC | $1.22 0.0003049 Eth | $339,160.00 277,979.145 CRV | 0.0755% |
69 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.20 0.0003011 Eth | $334,195.00 277,319.757 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0753% |
70 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.20 0.0003009 Eth | $318,473.00 46,554.159 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0126% |
71 | Pionex | CRV-USDT | $1.22 0.0003049 Eth | $307,046.00 257,395.877 CRV | 0.0699% |
72 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.21 0.0003024 Eth | $234,225.00 193,975.072 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0527% |
73 | Coinbase Exchange | CRV-GBP | $1.22 0.0003040 Eth | $225,103.00 185,002.850 CRV | 0.0503% |
74 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.20 0.0002998 Eth | $195,405.00 73,234.434 0X4200000000000000000000000000000000000042 | 0.0199% |
75 | BVOX | CRV-USDT | $1.20 0.0003003 Eth | $180,745.00 152,276.100 CRV | 0.0414% |
76 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.20 0.0003007 Eth | $169,365.00 142,961.204 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0388% |
77 | Binance US | CRV-USDT | $1.21 0.0003026 Eth | $114,860.00 95,002.013 CRV | 0.0258% |
78 | LATOKEN | CRV-USDT | $1.22 0.0003057 Eth | $112,465.00 91,920.476 CRV | 0.0250% |
79 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.21 0.0003034 Eth | $111,218.00 93,188.061 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0253% |
80 | BigONE | CRV-USDT | $1.22 0.0003049 Eth | $106,390.00 87,285.196 CRV | 0.0237% |
81 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.21 0.0003028 Eth | $101,156.00 84,202.690 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0229% |
82 | TokoCrypto | CRV-USDT | $1.22 0.0003049 Eth | $77,639.00 63,644.454 CRV | 0.0173% |
83 | Azbit | CRV-USDT | $1.21 0.0003022 Eth | $60,118.00 50,662.708 CRV | 0.0138% |
84 | Sushiswap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.21 0.0003023 Eth | $48,336.00 40,263.765 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0109% |
85 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.21 0.0003026 Eth | $41,091.00 34,566.172 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0094% |
86 | Nonkyc.io | CRV-BTC | $1.22 0.0003044 Eth | $26,660.00 22,405.899 CRV | 0.0061% |
87 | Globe | CRV-USDT | $1.22 0.0003043 Eth | $22,539.00 18,937.011 CRV | 0.0051% |
88 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.21 0.0003027 Eth | $22,280.00 18,509.795 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0050% |
89 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.21 0.0003028 Eth | $16,816.98 14,080.149 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0038% |
90 | Gate.io | CRV-BTC | $1.22 0.0003054 Eth | $15,411.90 12,910.840 CRV | 0.0035% |
91 | HashKey Global | CRV-USDT | $1.22 0.0003037 Eth | $15,059.72 12,679.300 CRV | 0.0034% |
92 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.22 0.0003041 Eth | $13,983.97 11,759.411 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0032% |
93 | Gate.io | CRV-TRY | $1.18 0.0002945 Eth | $11,904.63 9,984.722 CRV | 0.0027% |
94 | Luno | CRV-XBT | $1.21 0.0003028 Eth | $6,447.56 5,325.600 CRV | 0.0014% |
95 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.19 0.0002984 Eth | $6,387.60 5,367.878 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0015% |
96 | Gate.io | CRV-ETH | $1.21 0.0003035 Eth | $4,900.61 4,079.660 CRV | 0.0011% |
97 | Uniswap V3 (Polygon) | 0X0B3F868E0BE5597D5DB7FEB59E1CADBB0FDDA50A-0X172370D5CD63279EFA6D502DAB29171933A610AF | $1.20 0.0002999 Eth | $1,377.83 581.605 0X0B3F868E0BE5597D5DB7FEB59E1CADBB0FDDA50A | 0.0002% |
98 | Uniswap V3 (Ethereum) | 0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.20 0.0003008 Eth | $751.28 1,087.370 0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | 0.0003% |
99 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.20 0.0002998 Eth | $105.55 87.755 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0000% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.20 0.0003012 Eth | $88.82 73.894 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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