Overview
Max Total Supply
2,200,308,306.212185798372941307 CRV
Holders
88,547 ( 0.003%)
Market
Price
$1.22 @ 0.000299 ETH (+9.90%)
Onchain Market Cap
$2,680,285,041.57
Circulating Supply Market Cap
$1,518,342,681.35
Other Info
Token Contract (WITH 18 Decimals)
Balance
933.92503260428383886 CRVValue
$1,137.65 ( ~0.279031566626887 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.21 0.0002977 Eth | $286,423,622.00 244,253,783.600 CRV | 28.9828% |
2 | Websea | CRV-USDT | $1.21 0.0002975 Eth | $148,128,364.00 0.000 CRV | 0.0000% |
3 | Gate.io | CRV-USDT | $1.22 0.0002993 Eth | $98,140,316.00 85,378,851.530 CRV | 10.1309% |
4 | OKX | CRV-USDT | $1.21 0.0002984 Eth | $76,625,531.00 65,802,890.906 CRV | 7.8081% |
5 | Bitget | CRV-USDT | $1.21 0.0002979 Eth | $59,754,144.00 51,009,964.055 CRV | 6.0528% |
6 | Coinbase Exchange | CRV-USD | $1.21 0.0002974 Eth | $51,057,896.00 42,154,801.930 CRV | 5.0020% |
7 | Bitunix | CRV-USDT | $1.22 0.0002996 Eth | $42,678,921.00 35,047,188.500 CRV | 4.1586% |
8 | Bybit | CRV-USDT | $1.22 0.0002992 Eth | $41,174,691.00 35,576,771.770 CRV | 4.2215% |
9 | HTX | CRV-USDT | $1.21 0.0002976 Eth | $35,510,181.00 31,106,349.099 CRV | 3.6910% |
10 | XT.COM | CRV-USDT | $1.21 0.0002969 Eth | $22,818,475.00 19,449,053.400 CRV | 2.3078% |
11 | Slex | CRV-USDT | $1.22 0.0002988 Eth | $20,191,058.00 17,714,497.100 CRV | 2.1020% |
12 | BIT | CRV-USDT | $1.22 0.0002990 Eth | $19,115,202.00 15,727,902.205 CRV | 1.8662% |
13 | DigiFinex | CRV-USDT | $1.21 0.0002978 Eth | $15,298,009.00 12,637,056.900 CRV | 1.4995% |
14 | Kraken | CRV-USD | $1.21 0.0002968 Eth | $12,645,927.00 10,468,482.292 CRV | 1.2422% |
15 | Niza Global | CRV-USD | $1.22 0.0003010 Eth | $12,135,786.00 10,624,829.454 CRV | 1.2607% |
16 | KuCoin | CRV-USDT | $1.22 0.0002990 Eth | $11,013,612.00 9,061,204.620 CRV | 1.0752% |
17 | LBank | CRV-USDT | $1.21 0.0002976 Eth | $10,074,288.00 8,315,082.580 CRV | 0.9867% |
18 | Biconomy.com | CRV-USDT | $1.22 0.0002992 Eth | $10,070,964.00 8,716,409.814 CRV | 1.0343% |
19 | Dex-Trade | CRV-USDT | $1.21 0.0002976 Eth | $8,479,323.00 6,998,160.974 CRV | 0.8304% |
20 | Currency.com | CRV-USD | $1.22 0.0003000 Eth | $8,256,701.00 6,758,370.000 CRV | 0.8019% |
21 | Bitrue | CRV-XRP | $1.22 0.0002990 Eth | $7,998,118.00 6,578,073.710 CRV | 0.7805% |
22 | Binance | CRV-TRY | $1.23 0.0003023 Eth | $7,076,833.00 5,886,907.800 CRV | 0.6985% |
23 | Coinstore | CRV-USDT | $1.23 0.0003014 Eth | $6,920,069.00 5,917,421.900 CRV | 0.7022% |
24 | Binance | CRV-USDC | $1.22 0.0003008 Eth | $6,315,489.00 5,378,756.000 CRV | 0.6382% |
25 | Bitrue | CRV-USDT | $1.22 0.0002999 Eth | $6,179,453.00 5,065,998.740 CRV | 0.6011% |
26 | Binance | CRV-BTC | $1.21 0.0002982 Eth | $6,105,034.00 5,049,860.800 CRV | 0.5992% |
27 | Bitkub | CRV-THB | $1.20 0.0002948 Eth | $5,786,159.00 4,821,043.867 CRV | 0.5721% |
28 | Toobit | CRV-USDT | $1.21 0.0002978 Eth | $5,668,914.00 4,827,970.100 CRV | 0.5729% |
29 | FMFW.io | CRV-USDT | $1.22 0.0002995 Eth | $5,648,547.00 4,633,558.300 CRV | 0.5498% |
30 | Luno | CRV-MYR | $1.21 0.0002965 Eth | $5,630,251.00 4,659,717.880 CRV | 0.5529% |
31 | HitBTC | CRV-USDT | $1.22 0.0002986 Eth | $5,428,320.00 4,705,944.200 CRV | 0.5584% |
32 | Hotcoin | CRV-USDT | $1.21 0.0002973 Eth | $5,305,873.00 4,382,219.100 CRV | 0.5200% |
33 | BingX | CRV-USDT | $1.21 0.0002977 Eth | $5,178,809.00 4,433,810.883 CRV | 0.5261% |
34 | PointPay | CRV-USDT | $1.22 0.0003005 Eth | $4,801,625.00 4,090,167.915 CRV | 0.4853% |
35 | Hibt | CRV-USDT | $1.22 0.0002991 Eth | $4,589,313.00 3,942,261.161 CRV | 0.4678% |
36 | Bullish | CRV-USDC | $1.21 0.0002983 Eth | $4,524,595.00 3,965,225.324 CRV | 0.4705% |
37 | Bithumb | CRV-KRW | $1.18 0.0002904 Eth | $4,518,353.00 3,819,987.085 CRV | 0.4533% |
38 | Bitvavo | CRV-EUR | $1.21 0.0002978 Eth | $4,457,888.00 3,676,928.851 CRV | 0.4363% |
39 | Ourbit | CRV-USDT | $1.21 0.0002974 Eth | $4,397,401.00 3,760,118.050 CRV | 0.4462% |
40 | CoinEx | CRV-USDT | $1.22 0.0002988 Eth | $4,389,754.00 3,723,586.130 CRV | 0.4418% |
41 | WhiteBIT | CRV-BTC | $1.22 0.0002991 Eth | $3,276,443.00 2,689,520.700 CRV | 0.3191% |
42 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.23 0.0003014 Eth | $3,184,322.00 2,606,953.420 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3093% |
43 | BitMart | CRV-USDT | $1.21 0.0002972 Eth | $3,113,974.00 2,577,222.060 CRV | 0.3058% |
44 | Trubit | CRV-USDT | $1.21 0.0002984 Eth | $2,847,249.00 2,494,862.900 CRV | 0.2960% |
45 | Curve (Ethereum) | 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.23 0.0003021 Eth | $2,801,885.00 674.089 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | 0.0001% |
46 | Kraken | CRV-EUR | $1.21 0.0002972 Eth | $2,583,514.00 2,135,668.515 CRV | 0.2534% |
47 | Bit2Me | CRV-EUR | $1.22 0.0002992 Eth | $2,427,705.00 2,094,866.462 CRV | 0.2486% |
48 | Coinbase Exchange | CRV-EUR | $1.21 0.0002966 Eth | $2,063,179.00 1,707,685.600 CRV | 0.2026% |
49 | LocalTrade | CRV-USDT | $1.21 0.0002972 Eth | $2,004,401.00 1,656,874.609 CRV | 0.1966% |
50 | P2B | CRV-USD | $1.21 0.0002979 Eth | $1,812,783.00 1,494,462.190 CRV | 0.1773% |
51 | Upbit | CRV-BTC | $1.22 0.0002997 Eth | $1,604,729.00 1,317,064.050 CRV | 0.1563% |
52 | WEEX | CRV-USDT | $1.21 0.0002977 Eth | $1,502,813.00 1,240,196.418 CRV | 0.1472% |
53 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.21 0.0002978 Eth | $1,380,125.00 190,711.023 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0226% |
54 | WhiteBIT | CRV-TRY | $1.22 0.0003001 Eth | $1,368,157.00 1,119,066.000 CRV | 0.1328% |
55 | OKX | CRV-USDC | $1.22 0.0002991 Eth | $1,293,444.00 1,114,253.032 CRV | 0.1322% |
56 | LATOKEN | CRV-BTC | $1.22 0.0002992 Eth | $1,267,236.00 1,040,792.811 CRV | 0.1235% |
57 | Pionex | CRV-USDT | $1.21 0.0002973 Eth | $1,027,598.00 872,191.058 CRV | 0.1035% |
58 | BloFin | CRV-USDT | $1.21 0.0002984 Eth | $976,764.00 847,989.400 CRV | 0.1006% |
59 | BitDelta | CRV-USDT | $1.21 0.0002981 Eth | $930,532.00 821,241.900 CRV | 0.0974% |
60 | Gemini | CRV-USD | $1.21 0.0002983 Eth | $873,348.00 719,159.974 CRV | 0.0853% |
61 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.21 0.0002981 Eth | $852,433.00 714,964.734 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0848% |
62 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.21 0.0002983 Eth | $687,563.00 571,256.953 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0678% |
63 | Bitso | CRV-USD | $1.22 0.0002999 Eth | $652,175.00 534,206.483 CRV | 0.0634% |
64 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.20 0.0002955 Eth | $434,815.00 377,983.055 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0449% |
65 | Coinbase Exchange | CRV-GBP | $1.21 0.0002967 Eth | $430,140.00 355,940.230 CRV | 0.0422% |
66 | WEEX | CRV-USDC | $1.21 0.0002974 Eth | $427,190.00 375,465.000 CRV | 0.0446% |
67 | AscendEX (BitMax) | CRV-USDT | $1.21 0.0002979 Eth | $404,496.00 334,054.800 CRV | 0.0396% |
68 | BigONE | CRV-USDT | $1.21 0.0002974 Eth | $399,406.00 329,964.826 CRV | 0.0392% |
69 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.21 0.0002980 Eth | $381,695.00 139,557.285 0X4200000000000000000000000000000000000042 | 0.0166% |
70 | Coinbase Exchange | CRV-BTC | $1.21 0.0002972 Eth | $362,803.00 299,739.620 CRV | 0.0356% |
71 | Bitget | CRV-BTC | $1.21 0.0002985 Eth | $332,515.00 273,694.673 CRV | 0.0325% |
72 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.26 0.0003093 Eth | $305,117.00 242,238.398 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0287% |
73 | Tokenize | CRV-SGD | $1.21 0.0002972 Eth | $293,741.00 242,775.882 CRV | 0.0288% |
74 | Tokenize | CRV-USD | $1.21 0.0002963 Eth | $274,718.00 227,603.828 CRV | 0.0270% |
75 | KickEX | CRV-USDT | $1.21 0.0002980 Eth | $272,640.00 224,718.002 CRV | 0.0267% |
76 | LATOKEN | CRV-USDT | $1.22 0.0002992 Eth | $260,584.00 214,283.999 CRV | 0.0254% |
77 | BVOX | CRV-USDT | $1.21 0.0002975 Eth | $220,558.00 192,331.800 CRV | 0.0228% |
78 | Dex-Trade | CRV-BTC | $1.22 0.0002987 Eth | $181,404.00 149,173.581 CRV | 0.0177% |
79 | TokoCrypto | CRV-USDT | $1.22 0.0002996 Eth | $154,898.00 127,078.933 CRV | 0.0151% |
80 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.23 0.0003008 Eth | $154,428.00 118,799.195 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0141% |
81 | Sushiswap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.22 0.0002986 Eth | $129,878.00 107,130.425 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0127% |
82 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.21 0.0002975 Eth | $79,416.00 65,745.910 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0078% |
83 | P2B | CRV-BTC | $1.21 0.0002981 Eth | $70,894.00 58,405.600 CRV | 0.0069% |
84 | Luno | CRV-ZAR | $1.23 0.0003032 Eth | $64,884.00 52,602.550 CRV | 0.0062% |
85 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.22 0.0002988 Eth | $37,523.00 31,473.831 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0037% |
86 | Korbit | CRV-KRW | $1.23 0.0003015 Eth | $24,544.00 21,408.320 CRV | 0.0025% |
87 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.22 0.0002994 Eth | $21,599.00 17,738.694 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0021% |
88 | Foxbit | CRV-BRL | $1.25 0.0003069 Eth | $21,208.00 17,209.436 CRV | 0.0020% |
89 | Gate.io | CRV-ETH | $1.21 0.0002978 Eth | $18,706.02 15,529.180 CRV | 0.0018% |
90 | HashKey Global | CRV-USDT | $1.21 0.0002979 Eth | $15,415.60 13,534.800 CRV | 0.0016% |
91 | CEX.IO | CRV-USDT | $1.21 0.0002975 Eth | $13,331.86 10,833.831 CRV | 0.0013% |
92 | DeFi Swap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.23 0.0003016 Eth | $13,260.40 10,954.658 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0013% |
93 | Luno | CRV-XBT | $1.23 0.0003022 Eth | $11,290.66 9,177.200 CRV | 0.0011% |
94 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.22 0.0002984 Eth | $7,104.95 6,128.258 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0007% |
95 | Sushiswap (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.22 0.0002997 Eth | $6,343.75 5,242.439 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0006% |
96 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $1.21 0.0002984 Eth | $5,680.02 4,624.048 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0005% |
97 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.22 0.0002991 Eth | $4,214.89 3,492.626 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0004% |
98 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $1.23 0.0003017 Eth | $2,446.86 2,098.897 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0002% |
99 | Gravity Finance | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.24 0.0003061 Eth | $1,186.31 974.878 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.23 0.0003027 Eth | $338.67 279.295 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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