Overview
Max Total Supply
2,162,978,790.538303130217540966 CRV
Holders
87,806 ( -0.005%)
Market
Price
$0.30 @ 0.000121 ETH (-2.56%)
Onchain Market Cap
$655,795,856.29
Circulating Supply Market Cap
$354,340,153.99
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.008355728021376456 CRVValue
$0.00 ( ~0 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $0.3041 0.0001221 Eth | $47,612,146.00 158,500,743.300 CRV | 34.7362% |
2 | OKX | CRV-USDT | $0.3046 0.0001224 Eth | $7,709,538.00 25,692,572.556 CRV | 5.6306% |
3 | Gate.io | CRV-USDT | $0.3043 0.0001223 Eth | $7,411,267.00 24,952,662.690 CRV | 5.4685% |
4 | HTX | CRV-USDT | $0.3037 0.0001220 Eth | $7,120,889.00 23,905,896.088 CRV | 5.2391% |
5 | Bitunix | CRV-USDT | $0.3038 0.0001224 Eth | $6,327,765.00 20,828,708.000 CRV | 4.5647% |
6 | Bybit | CRV-USDT | $0.3039 0.0001222 Eth | $6,263,210.00 20,898,232.400 CRV | 4.5799% |
7 | Coinbase Exchange | CRV-USD | $0.3046 0.0001224 Eth | $4,791,345.00 15,729,956.450 CRV | 3.4473% |
8 | WhiteBIT | CRV-USDT | $0.304 0.0001223 Eth | $3,928,133.00 12,922,196.123 CRV | 2.8320% |
9 | XT.COM | CRV-USDT | $0.304 0.0001222 Eth | $3,806,450.00 12,676,937.100 CRV | 2.7782% |
10 | LBank | CRV-USDT | $0.3043 0.0001223 Eth | $3,476,191.00 11,423,988.230 CRV | 2.5036% |
11 | Phemex | CRV-USDT | $0.3042 0.0001225 Eth | $3,241,659.00 10,657,997.980 CRV | 2.3357% |
12 | Slex | CRV-USDT | $0.304 0.0001223 Eth | $3,004,003.00 9,997,276.400 CRV | 2.1909% |
13 | Hotcoin | CRV-USDT | $0.3041 0.0001223 Eth | $2,798,600.00 9,202,164.300 CRV | 2.0167% |
14 | KuCoin | CRV-USDT | $0.3045 0.0001223 Eth | $2,521,823.00 8,280,550.336 CRV | 1.8147% |
15 | DigiFinex | CRV-USDT | $0.3043 0.0001222 Eth | $2,491,781.00 8,187,285.300 CRV | 1.7943% |
16 | Trubit | CRV-USDT | $0.3037 0.0001222 Eth | $1,990,857.00 6,611,764.100 CRV | 1.4490% |
17 | FameEX | CRV-USDT | $0.3038 0.0001222 Eth | $1,892,693.00 6,304,551.916 CRV | 1.3817% |
18 | BYDFi | CRV-USDT | $0.302 0.0001221 Eth | $1,679,404.00 5,560,536.500 CRV | 1.2186% |
19 | Dex-Trade | CRV-USDT | $0.3041 0.0001222 Eth | $1,610,804.00 5,297,150.844 CRV | 1.1609% |
20 | Bitvavo | CRV-EUR | $0.3039 0.0001222 Eth | $1,231,568.00 4,052,204.137 CRV | 0.8881% |
21 | Kraken | CRV-USD | $0.303 0.0001217 Eth | $1,042,331.00 3,440,034.675 CRV | 0.7539% |
22 | CoinW | CRV-USDT | $0.3039 0.0001222 Eth | $931,216.00 3,064,268.709 CRV | 0.6715% |
23 | MEXC | CRV-USDT | $0.3038 0.0001222 Eth | $893,869.00 2,942,341.197 CRV | 0.6448% |
24 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.3046 0.0001224 Eth | $888,063.00 2,987,608.789 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.6547% |
25 | PointPay | CRV-USDT | $0.3043 0.0001223 Eth | $797,308.00 2,655,642.312 CRV | 0.5820% |
26 | FMFW.io | CRV-USDT | $0.3037 0.0001220 Eth | $715,539.00 2,356,301.400 CRV | 0.5164% |
27 | HitBTC | CRV-USDT | $0.3037 0.0001221 Eth | $705,712.00 2,358,083.000 CRV | 0.5168% |
28 | Bitget | CRV-USDT | $0.3039 0.0001222 Eth | $701,697.00 2,311,001.606 CRV | 0.5065% |
29 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3034 0.0001220 Eth | $605,392.00 2,049,783.773 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.4492% |
30 | BingX | CRV-USDT | $0.3038 0.0001221 Eth | $589,047.00 1,963,652.358 CRV | 0.4303% |
31 | Binance | CRV-BTC | $0.3039 0.0001220 Eth | $555,710.00 1,884,534.800 CRV | 0.4130% |
32 | FMCPAY | CRV-USDT | $0.3038 0.0001222 Eth | $542,463.00 1,813,155.060 CRV | 0.3974% |
33 | BitMart | CRV-USDT | $0.3041 0.0001222 Eth | $495,871.00 1,630,547.240 CRV | 0.3573% |
34 | Coinstore | CRV-USDT | $0.3031 0.0001217 Eth | $456,537.00 1,525,704.700 CRV | 0.3344% |
35 | Tapbit | CRV-USDT | $0.3039 0.0001222 Eth | $417,852.00 1,392,270.000 CRV | 0.3051% |
36 | Binance | CRV-USDC | $0.3038 0.0001221 Eth | $416,481.00 1,387,008.300 CRV | 0.3040% |
37 | P2B | CRV-USDT | $0.303 0.0001219 Eth | $383,745.00 1,266,436.900 CRV | 0.2775% |
38 | P2B | CRV-USD | $0.302 0.0001215 Eth | $368,552.00 1,220,372.410 CRV | 0.2675% |
39 | Bitkub | CRV-THB | $0.3041 0.0001223 Eth | $355,713.00 1,169,724.889 CRV | 0.2564% |
40 | BTSE | CRV-USDT | $0.3038 0.0001221 Eth | $328,048.00 1,079,855.445 CRV | 0.2367% |
41 | LocalTrade | CRV-USDT | $0.3042 0.0001222 Eth | $327,209.00 1,075,594.533 CRV | 0.2357% |
42 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.3044 0.0001223 Eth | $319,458.00 1,084,335.621 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.2376% |
43 | Bitazza | CRV-USDT | $0.3028 0.0001218 Eth | $295,245.00 982,026.300 CRV | 0.2152% |
44 | AscendEX (BitMax) | CRV-USDT | $0.3055 0.0001227 Eth | $285,101.00 933,187.200 CRV | 0.2045% |
45 | Curve (Ethereum) | 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.3009 0.0001210 Eth | $221,632.00 221,615.699 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E | 0.0486% |
46 | Fairdesk | CRV-USDT | $0.3038 0.0001222 Eth | $219,489.00 722,492.000 CRV | 0.1583% |
47 | TokoCrypto | CRV-USDT | $0.3043 0.0001223 Eth | $176,847.00 581,171.464 CRV | 0.1274% |
48 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.304 0.0001223 Eth | $161,034.00 532,303.256 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1167% |
49 | Bitget | CRV-USDC | $0.3038 0.0001221 Eth | $158,217.00 527,176.250 CRV | 0.1155% |
50 | BitDelta | CRV-USDT | $0.3041 0.0001222 Eth | $153,096.00 509,688.200 CRV | 0.1117% |
51 | WhiteBIT | CRV-BTC | $0.3036 0.0001221 Eth | $147,715.00 486,517.700 CRV | 0.1066% |
52 | CoinEx | CRV-USDT | $0.3034 0.0001220 Eth | $132,098.00 439,927.833 CRV | 0.0964% |
53 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.3026 0.0001225 Eth | $131,903.00 243,986.373 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0535% |
54 | Binance | CRV-TRY | $0.3022 0.0001218 Eth | $125,341.00 419,817.700 CRV | 0.0920% |
55 | Gemini | CRV-USD | $0.3038 0.0001220 Eth | $125,216.00 412,167.308 CRV | 0.0903% |
56 | WhiteBIT | CRV-TRY | $0.3055 0.0001227 Eth | $118,858.00 389,070.100 CRV | 0.0853% |
57 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3038 0.0001220 Eth | $118,448.00 407,851.828 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0894% |
58 | Icrypex | CRV-TRY | $0.3039 0.0001221 Eth | $76,121.00 250,500.695 CRV | 0.0549% |
59 | Bit2Me | CRV-EUR | $0.3018 0.0001214 Eth | $74,124.00 242,890.289 CRV | 0.0532% |
60 | Coinbase Exchange | CRV-EUR | $0.3033 0.0001218 Eth | $72,739.00 239,838.560 CRV | 0.0526% |
61 | Kraken | CRV-EUR | $0.3018 0.0001213 Eth | $72,606.00 240,548.678 CRV | 0.0527% |
62 | BigONE | CRV-USDT | $0.3041 0.0001222 Eth | $69,420.00 228,290.052 CRV | 0.0500% |
63 | WEEX | CRV-USDT | $0.3038 0.0001224 Eth | $63,100.00 210,083.000 CRV | 0.0460% |
64 | Paribu | CRV-TRY | $0.3013 0.0001217 Eth | $62,848.00 208,560.530 CRV | 0.0457% |
65 | Bitget | CRV-BTC | $0.3032 0.0001219 Eth | $59,147.00 200,708.794 CRV | 0.0440% |
66 | Bitfinex | CRV-USDT | $0.3041 0.0001222 Eth | $58,229.00 191,451.807 CRV | 0.0420% |
67 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.3033 0.0001219 Eth | $57,224.00 193,316.904 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0424% |
68 | XT.COM | CRV-BTC | $0.3038 0.0001221 Eth | $53,607.00 188,392.800 CRV | 0.0413% |
69 | Deepcoin | CRV-USDT | $0.304 0.0001223 Eth | $48,319.00 162,316.600 CRV | 0.0356% |
70 | LATOKEN | CRV-BTC | $0.3013 0.0001212 Eth | $47,002.00 155,984.288 CRV | 0.0342% |
71 | LATOKEN | CRV-USDT | $0.304 0.0001222 Eth | $46,119.00 151,727.984 CRV | 0.0333% |
72 | Coinbase Exchange | CRV-BTC | $0.3039 0.0001221 Eth | $42,035.00 138,336.410 CRV | 0.0303% |
73 | Biconomy.com | CRV-USDT | $0.3039 0.0001222 Eth | $40,979.00 136,474.100 CRV | 0.0299% |
74 | Dex-Trade | CRV-BTC | $0.3038 0.0001221 Eth | $40,572.00 133,562.000 CRV | 0.0293% |
75 | OKX | CRV-USDC | $0.3043 0.0001222 Eth | $37,126.00 123,549.935 CRV | 0.0271% |
76 | Coinbase Exchange | CRV-GBP | $0.3033 0.0001218 Eth | $33,603.00 110,808.710 CRV | 0.0243% |
77 | Upbit | CRV-BTC | $0.305 0.0001226 Eth | $28,460.00 93,320.072 CRV | 0.0205% |
78 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599 | $0.3067 0.0001233 Eth | $21,560.00 72,700.745 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0159% |
79 | Bitazza | CRV-THB | $0.301 0.0001211 Eth | $19,103.84 63,772.400 CRV | 0.0140% |
80 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.3042 0.0001223 Eth | $16,438.44 54,276.192 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0119% |
81 | Bitlo | CRV-TRY | $0.3046 0.0001227 Eth | $14,294.01 47,289.966 CRV | 0.0104% |
82 | WOO X | CRV-USDT | $0.3042 0.0001222 Eth | $13,946.02 45,837.744 CRV | 0.0100% |
83 | HashKey Global | CRV-USDT | $0.3044 0.0001224 Eth | $10,548.22 35,832.700 CRV | 0.0079% |
84 | Indodax | CRV-IDR | $0.3033 0.0001219 Eth | $10,091.49 33,273.433 CRV | 0.0073% |
85 | Sushiswap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3009 0.0001218 Eth | $8,933.72 30,320.278 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0066% |
86 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3029 0.0001218 Eth | $7,485.37 25,222.004 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0055% |
87 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3036 0.0001221 Eth | $7,453.86 25,054.308 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0055% |
88 | Kraken | CRV-XBT | $0.3039 0.0001221 Eth | $6,613.88 21,766.203 CRV | 0.0048% |
89 | P2B | CRV-BTC | $0.3031 0.0001219 Eth | $6,567.39 21,668.800 CRV | 0.0047% |
90 | Gate.io | CRV-ETH | $0.304 0.0001221 Eth | $6,269.50 21,027.360 CRV | 0.0046% |
91 | Nonkyc.io | CRV-USDT | $0.3038 0.0001223 Eth | $4,903.06 16,328.882 CRV | 0.0036% |
92 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3017 0.0001216 Eth | $2,742.57 9,277.333 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0020% |
93 | Curve (Ethereum) | 0XD1B5651E55D4CEED36251C61C50C889B36F6ABB5-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.3009 0.0001210 Eth | $2,482.45 8,290.291 0XD1B5651E55D4CEED36251C61C50C889B36F6ABB5 | 0.0018% |
94 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.3039 0.0001222 Eth | $1,865.47 6,243.686 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0014% |
95 | Azbit | CRV-BTC | $0.3026 0.0001220 Eth | $1,651.15 5,598.044 CRV | 0.0012% |
96 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.3025 0.0001217 Eth | $478.20 1,607.843 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0004% |
97 | Korbit | CRV-KRW | $0.3063 0.0001230 Eth | $229.07 764.845 CRV | 0.0002% |
98 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $0.3046 0.0001225 Eth | $188.21 624.790 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0001% |
99 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $0.3039 0.0001222 Eth | $177.36 590.075 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0001% |
100 | Energiswap | 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E-0XA55F26319462355474A9F2C8790860776A329AA4 | $0.3026 0.0001220 Eth | $60.55 201.484 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E | 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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