Overview
Max Total Supply
2,200,699,910.571013288283218244 CRV
Holders
88,618 ( 0.037%)
Market
Price
$1.20 @ 0.000301 ETH (+6.76%)
Onchain Market Cap
$2,646,070,801.28
Circulating Supply Market Cap
$1,498,744,544.88
Other Info
Token Contract (WITH 18 Decimals)
Balance
100,286.419535476885047492 CRVValue
$120,582.08 ( ~30.1677 Eth) [0.0046%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.20 0.0002991 Eth | $291,473,591.00 237,057,779.100 CRV | 26.3401% |
2 | Websea | CRV-USDT | $1.20 0.0003003 Eth | $147,590,183.00 0.000 CRV | 0.0000% |
3 | WhiteBIT | CRV-USDT | $1.20 0.0002993 Eth | $106,522,943.00 88,946,674.799 CRV | 9.8831% |
4 | Gate.io | CRV-USDT | $1.20 0.0003001 Eth | $79,810,620.00 64,846,130.895 CRV | 7.2052% |
5 | OKX | CRV-USDT | $1.20 0.0002996 Eth | $74,021,717.00 60,332,480.533 CRV | 6.7037% |
6 | Bitget | CRV-USDT | $1.20 0.0003000 Eth | $52,571,862.00 42,634,691.976 CRV | 4.7372% |
7 | Coinbase Exchange | CRV-USD | $1.20 0.0002988 Eth | $43,752,056.00 36,569,756.150 CRV | 4.0634% |
8 | Bitunix | CRV-USDT | $1.20 0.0002998 Eth | $39,205,701.00 32,683,908.000 CRV | 3.6316% |
9 | MEXC | CRV-USDT | $1.20 0.0002989 Eth | $38,051,887.00 31,802,458.436 CRV | 3.5337% |
10 | Bybit | CRV-USDT | $1.20 0.0002989 Eth | $35,604,132.00 29,001,738.790 CRV | 3.2225% |
11 | HTX | CRV-USDT | $1.20 0.0003002 Eth | $30,708,370.00 25,082,723.848 CRV | 2.7870% |
12 | XT.COM | CRV-USDT | $1.20 0.0003001 Eth | $23,120,680.00 18,806,356.600 CRV | 2.0896% |
13 | Slex | CRV-USDT | $1.20 0.0002989 Eth | $22,705,981.00 18,521,674.700 CRV | 2.0580% |
14 | BTSE | CRV-USDT | $1.20 0.0002997 Eth | $18,189,665.00 15,171,136.781 CRV | 1.6857% |
15 | DigiFinex | CRV-USDT | $1.20 0.0002998 Eth | $14,528,661.00 12,116,014.700 CRV | 1.3462% |
16 | FameEX | CRV-USDT | $1.20 0.0002994 Eth | $11,634,203.00 9,461,823.016 CRV | 1.0513% |
17 | BYDFi | CRV-USDT | $1.20 0.0002997 Eth | $11,151,979.00 9,282,339.700 CRV | 1.0314% |
18 | KuCoin | CRV-USDT | $1.20 0.0003003 Eth | $10,992,713.00 9,150,187.995 CRV | 1.0167% |
19 | Niza Global | CRV-USD | $1.20 0.0003005 Eth | $10,645,360.00 8,652,231.814 CRV | 0.9614% |
20 | Kraken | CRV-USD | $1.20 0.0002997 Eth | $10,352,993.00 8,634,689.960 CRV | 0.9594% |
21 | Dex-Trade | CRV-USDT | $1.19 0.0002976 Eth | $9,391,812.00 7,874,994.348 CRV | 0.8750% |
22 | Binance | CRV-TRY | $1.20 0.0003009 Eth | $9,174,930.00 7,402,552.300 CRV | 0.8225% |
23 | Currency.com | CRV-USD | $1.20 0.0002994 Eth | $8,204,983.00 6,837,486.000 CRV | 0.7597% |
24 | CoinW | CRV-USDT | $1.20 0.0002989 Eth | $7,919,767.00 6,619,755.514 CRV | 0.7355% |
25 | Biconomy.com | CRV-USDT | $1.20 0.0002988 Eth | $7,691,088.00 6,270,829.110 CRV | 0.6968% |
26 | Binance | CRV-USDC | $1.20 0.0002998 Eth | $7,448,623.00 6,073,378.400 CRV | 0.6748% |
27 | Coinstore | CRV-USDT | $1.20 0.0003008 Eth | $7,103,223.00 5,779,965.300 CRV | 0.6422% |
28 | LBank | CRV-USDT | $1.19 0.0002984 Eth | $6,832,605.00 5,718,472.150 CRV | 0.6354% |
29 | Bitkub | CRV-THB | $1.20 0.0002996 Eth | $6,264,585.00 5,222,986.736 CRV | 0.5803% |
30 | Binance | CRV-BTC | $1.20 0.0002998 Eth | $6,261,396.00 5,066,497.700 CRV | 0.5630% |
31 | Toobit | CRV-USDT | $1.20 0.0003002 Eth | $5,752,524.00 4,677,209.600 CRV | 0.5197% |
32 | HitBTC | CRV-USDT | $1.20 0.0002999 Eth | $5,518,478.00 4,506,867.000 CRV | 0.5008% |
33 | Bitrue | CRV-USDT | $1.20 0.0003010 Eth | $5,348,348.00 4,440,630.340 CRV | 0.4934% |
34 | Bitvavo | CRV-EUR | $1.20 0.0003000 Eth | $5,143,774.00 4,285,854.888 CRV | 0.4762% |
35 | BingX | CRV-USDT | $1.20 0.0003002 Eth | $5,008,052.00 4,064,521.336 CRV | 0.4516% |
36 | PointPay | CRV-USDT | $1.20 0.0003004 Eth | $4,906,181.00 3,991,737.328 CRV | 0.4435% |
37 | CoinEx | CRV-USDT | $1.20 0.0002990 Eth | $4,527,978.00 3,688,301.992 CRV | 0.4098% |
38 | Ourbit | CRV-USDT | $1.20 0.0002990 Eth | $4,471,760.00 3,643,413.020 CRV | 0.4048% |
39 | Hibt | CRV-USDT | $1.20 0.0002998 Eth | $4,447,866.00 3,625,551.424 CRV | 0.4028% |
40 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $1.20 0.0002991 Eth | $4,230,125.00 3,357,036.711 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3730% |
41 | WhiteBIT | CRV-BTC | $1.20 0.0003002 Eth | $3,918,331.00 3,262,102.800 CRV | 0.3625% |
42 | Bullish | CRV-USDC | $1.19 0.0002985 Eth | $3,708,134.00 3,017,091.079 CRV | 0.3352% |
43 | FMCPAY | CRV-USDT | $1.20 0.0002994 Eth | $3,521,129.00 2,870,897.510 CRV | 0.3190% |
44 | Phemex | CRV-USDT | $1.20 0.0002987 Eth | $3,234,396.00 2,704,196.460 CRV | 0.3005% |
45 | Trubit | CRV-USDT | $1.20 0.0002990 Eth | $2,299,923.00 1,874,096.200 CRV | 0.2082% |
46 | Niza Global | CRV-EUR | $1.20 0.0002987 Eth | $2,243,691.00 1,837,237.377 CRV | 0.2041% |
47 | Kraken | CRV-EUR | $1.20 0.0002988 Eth | $2,196,461.00 1,837,237.377 CRV | 0.2041% |
48 | Coinbase Exchange | CRV-EUR | $1.20 0.0002992 Eth | $2,034,080.00 1,697,960.410 CRV | 0.1887% |
49 | P2B | CRV-USD | $1.20 0.0002985 Eth | $1,980,781.00 1,657,557.270 CRV | 0.1842% |
50 | WEEX | CRV-USDT | $1.20 0.0002988 Eth | $1,502,858.00 1,256,587.495 CRV | 0.1396% |
51 | Hotcoin | CRV-USDT | $1.20 0.0002991 Eth | $1,480,361.00 1,236,407.371 CRV | 0.1374% |
52 | OKX | CRV-USDC | $1.20 0.0002997 Eth | $1,435,066.00 1,165,999.410 CRV | 0.1296% |
53 | Upbit | CRV-BTC | $1.20 0.0003001 Eth | $1,371,879.00 1,142,595.879 CRV | 0.1270% |
54 | WhiteBIT | CRV-TRY | $1.20 0.0003008 Eth | $1,336,271.00 1,110,309.700 CRV | 0.1234% |
55 | LATOKEN | CRV-BTC | $1.20 0.0002987 Eth | $1,311,401.00 1,096,638.004 CRV | 0.1219% |
56 | Pionex | CRV-USDT | $1.20 0.0002991 Eth | $1,136,833.00 923,961.432 CRV | 0.1027% |
57 | Gemini | CRV-USD | $1.20 0.0002991 Eth | $1,105,517.00 923,804.907 CRV | 0.1026% |
58 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.17 0.0002929 Eth | $1,084,764.00 156,964.954 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0174% |
59 | BitDelta | CRV-USDT | $1.20 0.0003003 Eth | $938,345.00 774,143.700 CRV | 0.0860% |
60 | BloFin | CRV-USDT | $1.20 0.0002990 Eth | $867,443.00 713,971.800 CRV | 0.0793% |
61 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.21 0.0003034 Eth | $780,197.00 619,002.757 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0688% |
62 | Bitso | CRV-USD | $1.20 0.0002996 Eth | $775,268.00 646,174.807 CRV | 0.0718% |
63 | Nonkyc.io | CRV-USDT | $1.19 0.0002982 Eth | $767,522.00 629,909.639 CRV | 0.0700% |
64 | Tapbit | CRV-USDT | $1.21 0.0003034 Eth | $658,781.00 540,409.000 CRV | 0.0600% |
65 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.19 0.0002985 Eth | $604,680.00 487,605.481 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0542% |
66 | Bitazza | CRV-USDT | $1.20 0.0002999 Eth | $476,260.00 386,499.300 CRV | 0.0429% |
67 | WEEX | CRV-USDC | $1.20 0.0003006 Eth | $444,152.00 362,228.000 CRV | 0.0402% |
68 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.19 0.0002961 Eth | $368,395.00 142,933.302 0X4200000000000000000000000000000000000042 | 0.0159% |
69 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.20 0.0002995 Eth | $362,516.00 316,432.697 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0352% |
70 | Coinbase Exchange | CRV-GBP | $1.21 0.0003011 Eth | $334,672.00 277,618.060 CRV | 0.0308% |
71 | Curve (Arbitrum) | 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.20 0.0002990 Eth | $322,156.00 333,756.468 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5 | 0.0371% |
72 | Bitget | CRV-BTC | $1.20 0.0003001 Eth | $317,569.00 253,865.655 CRV | 0.0282% |
73 | KickEX | CRV-USDT | $1.20 0.0003006 Eth | $271,979.00 225,952.990 CRV | 0.0251% |
74 | LATOKEN | CRV-USDT | $1.20 0.0002986 Eth | $268,970.00 224,975.926 CRV | 0.0250% |
75 | BigONE | CRV-USDT | $1.20 0.0002996 Eth | $208,940.00 173,885.043 CRV | 0.0193% |
76 | Dex-Trade | CRV-BTC | $1.20 0.0002996 Eth | $205,580.00 171,296.581 CRV | 0.0190% |
77 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.20 0.0002992 Eth | $198,572.00 162,105.673 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0180% |
78 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.20 0.0002997 Eth | $173,661.00 138,781.579 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0154% |
79 | TokoCrypto | CRV-USDT | $1.20 0.0002985 Eth | $155,920.00 130,473.805 CRV | 0.0145% |
80 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $1.19 0.0002986 Eth | $148,044.00 116,865.454 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0130% |
81 | Sushiswap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.20 0.0003003 Eth | $126,402.00 101,816.221 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0113% |
82 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.20 0.0003008 Eth | $118,548.00 96,791.947 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0108% |
83 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.20 0.0003002 Eth | $74,896.00 60,167.618 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0067% |
84 | Mercado Bitcoin | CRV-BRL | $1.21 0.0003020 Eth | $54,837.00 45,385.741 CRV | 0.0050% |
85 | Foxbit | CRV-BRL | $1.19 0.0002979 Eth | $33,364.00 26,863.433 CRV | 0.0030% |
86 | Nonkyc.io | CRV-BTC | $1.21 0.0003017 Eth | $32,489.00 26,453.116 CRV | 0.0029% |
87 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.20 0.0003004 Eth | $28,087.00 22,847.598 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0025% |
88 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.21 0.0003017 Eth | $22,422.00 17,821.664 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0020% |
89 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.20 0.0002999 Eth | $17,124.23 13,826.092 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0015% |
90 | Gate.io | CRV-TRY | $1.21 0.0003028 Eth | $16,984.35 13,591.161 CRV | 0.0015% |
91 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.19 0.0002968 Eth | $15,957.62 12,836.748 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0014% |
92 | HashKey Global | CRV-USDT | $1.19 0.0002979 Eth | $15,572.47 12,732.200 CRV | 0.0014% |
93 | Luno | CRV-XBT | $1.20 0.0002990 Eth | $15,341.50 12,816.900 CRV | 0.0014% |
94 | Gate.io | CRV-ETH | $1.20 0.0002994 Eth | $14,288.79 11,558.130 CRV | 0.0013% |
95 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.18 0.0002947 Eth | $4,905.19 4,028.299 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0004% |
96 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $1.20 0.0002988 Eth | $4,850.03 4,146.990 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0005% |
97 | Energiswap | 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E-0XA55F26319462355474A9F2C8790860776A329AA4 | $1.20 0.0002999 Eth | $502.76 410.831 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E | 0.0000% |
98 | Swapr (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.19 0.0002978 Eth | $454.38 365.064 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0000% |
99 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.20 0.0002992 Eth | $386.85 311.461 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0000% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.19 0.0002979 Eth | $301.53 243.491 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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