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Overview
Max Total Supply
2,200,946,990.367963915001312127 CRV
Holders
88,571 ( -0.157%)
Market
Price
$1.17 @ 0.000297 ETH (-2.21%)
Onchain Market Cap
$2,578,967,072.06
Circulating Supply Market Cap
$1,460,939,649.40
Other Info
Token Contract (WITH 18 Decimals)
Balance
1,041.66 CRVValue
$1,220.57 ( ~0.308952595088137 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.16 0.0002943 Eth | $97,661,078.00 82,750,277.100 CRV | 22.5393% |
2 | WhiteBIT | CRV-USDT | $1.17 0.0002943 Eth | $52,207,359.00 44,777,188.230 CRV | 12.1963% |
3 | Websea | CRV-USDT | $1.17 0.0002950 Eth | $51,373,364.00 0.000 CRV | 0.0000% |
4 | Gate.io | CRV-USDT | $1.16 0.0002940 Eth | $32,300,411.00 27,347,196.830 CRV | 7.4488% |
5 | OKX | CRV-USDT | $1.16 0.0002942 Eth | $27,136,518.00 22,978,359.695 CRV | 6.2588% |
6 | Slex | CRV-USDT | $1.17 0.0002942 Eth | $22,785,144.00 19,294,026.100 CRV | 5.2553% |
7 | Coinbase Exchange | CRV-USD | $1.16 0.0002941 Eth | $16,196,486.00 13,914,507.020 CRV | 3.7900% |
8 | MEXC | CRV-USDT | $1.17 0.0002961 Eth | $15,683,063.00 13,365,319.700 CRV | 3.6404% |
9 | Bybit | CRV-USDT | $1.16 0.0002946 Eth | $13,825,114.00 11,713,698.930 CRV | 3.1905% |
10 | Bitunix | CRV-USDT | $1.17 0.0002945 Eth | $13,787,932.00 11,807,311.200 CRV | 3.2160% |
11 | Bitget | CRV-USDT | $1.16 0.0002938 Eth | $10,905,464.00 9,218,032.294 CRV | 2.5108% |
12 | BTSE | CRV-USDT | $1.17 0.0002959 Eth | $10,204,750.00 8,698,735.348 CRV | 2.3693% |
13 | HTX | CRV-USDT | $1.16 0.0002944 Eth | $10,026,618.00 8,464,793.757 CRV | 2.3056% |
14 | XT.COM | CRV-USDT | $1.17 0.0002959 Eth | $7,855,427.00 6,649,792.500 CRV | 1.8113% |
15 | DigiFinex | CRV-USDT | $1.16 0.0002943 Eth | $5,284,901.00 4,541,685.900 CRV | 1.2371% |
16 | LBank | CRV-USDT | $1.17 0.0002962 Eth | $4,572,345.00 3,896,907.580 CRV | 1.0614% |
17 | Kraken | CRV-USD | $1.17 0.0002951 Eth | $4,442,773.00 3,807,003.745 CRV | 1.0369% |
18 | KuCoin | CRV-USDT | $1.16 0.0002939 Eth | $3,935,167.00 3,383,690.067 CRV | 0.9216% |
19 | FameEX | CRV-USDT | $1.17 0.0002941 Eth | $3,914,954.00 3,313,820.042 CRV | 0.9026% |
20 | CoinW | CRV-USDT | $1.17 0.0002949 Eth | $3,901,967.00 3,342,766.188 CRV | 0.9105% |
21 | BYDFi | CRV-USDT | $1.17 0.0002951 Eth | $3,788,247.00 3,242,648.800 CRV | 0.8832% |
22 | Biconomy.com | CRV-USDT | $1.16 0.0002933 Eth | $3,370,044.00 2,852,955.200 CRV | 0.7771% |
23 | Bitvavo | CRV-EUR | $1.17 0.0002953 Eth | $3,335,772.00 2,852,772.894 CRV | 0.7770% |
24 | Dex-Trade | CRV-USDT | $1.16 0.0002943 Eth | $3,291,599.00 2,826,010.900 CRV | 0.7697% |
25 | Bitrue | CRV-XRP | $1.17 0.0002954 Eth | $3,170,886.00 2,711,904.770 CRV | 0.7387% |
26 | Phemex | CRV-USDT | $1.17 0.0002949 Eth | $3,036,224.00 2,601,227.270 CRV | 0.7085% |
27 | HitBTC | CRV-USDT | $1.17 0.0002949 Eth | $2,881,164.00 2,435,075.700 CRV | 0.6633% |
28 | FMFW.io | CRV-USDT | $1.17 0.0002940 Eth | $2,865,953.00 2,455,175.000 CRV | 0.6687% |
29 | Coinstore | CRV-USDT | $1.17 0.0002951 Eth | $2,768,736.00 2,340,593.800 CRV | 0.6375% |
30 | FMCPAY | CRV-USDT | $1.17 0.0002953 Eth | $2,732,125.00 2,314,008.280 CRV | 0.6303% |
31 | Bullish | CRV-USDC | $1.16 0.0002940 Eth | $2,647,590.00 2,241,542.893 CRV | 0.6105% |
32 | Bitrue | CRV-USDT | $1.17 0.0002949 Eth | $2,304,169.00 1,974,092.750 CRV | 0.5377% |
33 | Luno | CRV-MYR | $1.18 0.0002973 Eth | $2,252,167.00 1,911,551.900 CRV | 0.5207% |
34 | Trubit | CRV-USDT | $1.17 0.0002942 Eth | $2,213,391.00 1,878,613.600 CRV | 0.5117% |
35 | Binance | CRV-TRY | $1.17 0.0002967 Eth | $2,207,283.00 1,854,086.900 CRV | 0.5050% |
36 | CoinEx | CRV-USDT | $1.17 0.0002941 Eth | $2,073,917.00 1,753,321.470 CRV | 0.4776% |
37 | Binance | CRV-BTC | $1.16 0.0002943 Eth | $2,069,956.00 1,761,184.800 CRV | 0.4797% |
38 | Bitrue | CRV-USDC | $1.17 0.0002948 Eth | $2,002,135.00 1,715,647.350 CRV | 0.4673% |
39 | Bitkub | CRV-THB | $1.17 0.0002948 Eth | $1,974,016.00 1,693,474.935 CRV | 0.4613% |
40 | Toobit | CRV-USDT | $1.17 0.0002950 Eth | $1,961,430.00 1,660,857.100 CRV | 0.4524% |
41 | BingX | CRV-USDT | $1.17 0.0002955 Eth | $1,882,745.00 1,599,167.601 CRV | 0.4356% |
42 | Curve (Ethereum) | 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.18 0.0002988 Eth | $1,785,895.00 444.881 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | 0.0001% |
43 | Ourbit | CRV-USDT | $1.16 0.0002942 Eth | $1,625,656.00 1,376,490.060 CRV | 0.3749% |
44 | Hibt | CRV-USDT | $1.16 0.0002941 Eth | $1,620,725.00 1,371,418.896 CRV | 0.3735% |
45 | PointPay | CRV-USDT | $1.17 0.0002951 Eth | $1,591,722.00 1,348,167.994 CRV | 0.3672% |
46 | WEEX | CRV-USDT | $1.16 0.0002940 Eth | $1,501,467.00 1,289,792.098 CRV | 0.3513% |
47 | BitMart | CRV-USDT | $1.16 0.0002944 Eth | $961,136.00 825,687.280 CRV | 0.2249% |
48 | Binance | CRV-USDC | $1.17 0.0002949 Eth | $950,724.00 804,805.800 CRV | 0.2192% |
49 | WhiteBIT | CRV-BTC | $1.16 0.0002942 Eth | $898,225.00 771,392.800 CRV | 0.2101% |
50 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.18 0.0002990 Eth | $822,182.00 697,512.917 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1900% |
51 | Currency.com | CRV-USD | $1.17 0.0002950 Eth | $809,837.00 692,790.000 CRV | 0.1887% |
52 | OKX | CRV-USDC | $1.16 0.0002946 Eth | $807,508.00 684,818.015 CRV | 0.1865% |
53 | P2B | CRV-USD | $1.17 0.0002946 Eth | $753,019.00 645,814.320 CRV | 0.1759% |
54 | Curve (Ethereum) | 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.18 0.0002995 Eth | $709,011.00 706,629.803 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E | 0.1925% |
55 | BitDelta | CRV-USDT | $1.18 0.0002965 Eth | $594,623.00 503,214.500 CRV | 0.1371% |
56 | Nonkyc.io | CRV-USDT | $1.17 0.0002942 Eth | $576,001.00 487,307.051 CRV | 0.1327% |
57 | Kraken | CRV-EUR | $1.17 0.0002951 Eth | $503,807.00 431,717.333 CRV | 0.1176% |
58 | Bitso | CRV-USD | $1.14 0.0002881 Eth | $480,098.00 421,508.289 CRV | 0.1148% |
59 | Gemini | CRV-USD | $1.16 0.0002946 Eth | $415,967.00 357,083.573 CRV | 0.0973% |
60 | BloFin | CRV-USDT | $1.16 0.0002937 Eth | $362,477.00 307,362.100 CRV | 0.0837% |
61 | LATOKEN | CRV-BTC | $1.17 0.0002952 Eth | $360,459.00 308,317.490 CRV | 0.0840% |
62 | WhiteBIT | CRV-TRY | $1.17 0.0002966 Eth | $356,421.00 303,556.500 CRV | 0.0827% |
63 | Coinbase Exchange | CRV-EUR | $1.16 0.0002943 Eth | $348,088.00 298,821.600 CRV | 0.0814% |
64 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.17 0.0002958 Eth | $317,731.00 274,305.107 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0747% |
65 | WEEX | CRV-USDC | $1.18 0.0002968 Eth | $313,818.00 264,933.000 CRV | 0.0722% |
66 | Pionex | CRV-USDT | $1.17 0.0002950 Eth | $264,005.00 222,981.674 CRV | 0.0607% |
67 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.18 0.0002990 Eth | $214,939.00 31,132.861 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0085% |
68 | Curve (Optimism) | 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.17 0.0002958 Eth | $204,259.00 206,898.135 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6 | 0.0564% |
69 | BVOX | CRV-USDT | $1.16 0.0002942 Eth | $192,773.00 163,349.900 CRV | 0.0445% |
70 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.16 0.0002934 Eth | $175,854.00 152,622.060 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0416% |
71 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.17 0.0002957 Eth | $156,539.00 58,883.912 0X4200000000000000000000000000000000000042 | 0.0160% |
72 | Coinbase Exchange | CRV-GBP | $1.16 0.0002943 Eth | $141,040.00 121,095.560 CRV | 0.0330% |
73 | Binance US | CRV-USDT | $1.17 0.0002947 Eth | $137,456.00 117,851.478 CRV | 0.0321% |
74 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.17 0.0002965 Eth | $136,809.00 117,488.847 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0320% |
75 | Korbit | CRV-KRW | $1.15 0.0002908 Eth | $106,377.00 92,401.031 CRV | 0.0252% |
76 | LATOKEN | CRV-USDT | $1.17 0.0002949 Eth | $95,231.00 81,580.086 CRV | 0.0222% |
77 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.18 0.0002990 Eth | $91,267.00 77,674.614 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0212% |
78 | BigONE | CRV-USDT | $1.17 0.0002955 Eth | $89,007.00 76,033.581 CRV | 0.0207% |
79 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.17 0.0002947 Eth | $86,091.00 72,885.635 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0199% |
80 | Bitstamp | CRV-USD | $1.18 0.0002974 Eth | $66,872.00 56,865.763 CRV | 0.0155% |
81 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.17 0.0002948 Eth | $64,448.00 54,785.481 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0149% |
82 | TokoCrypto | CRV-USDT | $1.17 0.0002955 Eth | $63,418.00 54,195.123 CRV | 0.0148% |
83 | Coinbase Exchange | CRV-BTC | $1.17 0.0002962 Eth | $60,786.00 51,840.250 CRV | 0.0141% |
84 | Azbit | CRV-USDT | $1.17 0.0002961 Eth | $58,899.00 49,879.985 CRV | 0.0136% |
85 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.19 0.0002994 Eth | $34,637.00 29,271.126 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0080% |
86 | Nonkyc.io | CRV-BTC | $1.18 0.0002973 Eth | $26,427.00 22,457.603 CRV | 0.0061% |
87 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.17 0.0002949 Eth | $25,479.00 21,129.899 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0058% |
88 | HashKey Global | CRV-USDT | $1.17 0.0002950 Eth | $15,539.75 13,163.000 CRV | 0.0036% |
89 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.17 0.0002944 Eth | $14,341.14 12,249.380 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0033% |
90 | Globe | CRV-USDT | $1.17 0.0002954 Eth | $12,402.82 10,451.236 CRV | 0.0028% |
91 | Gate.io | CRV-BTC | $1.17 0.0002950 Eth | $12,047.25 10,225.516 CRV | 0.0028% |
92 | PancakeSwap V3 (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.17 0.0002947 Eth | $10,679.27 9,162.879 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0025% |
93 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.16 0.0002940 Eth | $10,571.90 8,974.740 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0024% |
94 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.17 0.0002952 Eth | $8,656.57 7,489.998 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0020% |
95 | NovaDAX | CRV-BRL | $1.18 0.0002990 Eth | $5,210.32 4,397.998 CRV | 0.0012% |
96 | Gate.io | CRV-ETH | $1.16 0.0002935 Eth | $4,851.11 4,128.810 CRV | 0.0011% |
97 | Luno | CRV-XBT | $1.16 0.0002937 Eth | $4,352.94 3,744.500 CRV | 0.0010% |
98 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.17 0.0002950 Eth | $3,588.67 3,093.523 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0008% |
99 | CEX.IO | CRV-USDT | $1.17 0.0002944 Eth | $2,715.30 2,326.393 CRV | 0.0006% |
100 | Uniswap V3 (Polygon) | 0X0B3F868E0BE5597D5DB7FEB59E1CADBB0FDDA50A-0X172370D5CD63279EFA6D502DAB29171933A610AF | $1.17 0.0002958 Eth | $92.90 45.774 0X0B3F868E0BE5597D5DB7FEB59E1CADBB0FDDA50A | 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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