Overview
Max Total Supply
2,200,186,373.483753823000814225 CRV
Holders
88,529 ( -0.134%)
Market
Price
$1.05 @ 0.000277 ETH (-4.70%)
Onchain Market Cap
$2,312,798,324.38
Circulating Supply Market Cap
$1,309,979,060.24
Other Info
Token Contract (WITH 18 Decimals)
Balance
933.92503260428383886 CRVValue
$981.73 ( ~0.259038720773834 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.058 0.0002790 Eth | $231,167,007.00 212,684,328.600 CRV | 23.3996% |
2 | Gate.io | CRV-USDT | $1.057 0.0002789 Eth | $109,637,124.00 100,426,427.723 CRV | 11.0489% |
3 | OKX | CRV-USDT | $1.058 0.0002792 Eth | $74,603,218.00 68,387,221.678 CRV | 7.5240% |
4 | MEXC | CRV-USDT | $1.05 0.0002771 Eth | $56,264,554.00 53,603,851.043 CRV | 5.8975% |
5 | Bitget | CRV-USDT | $1.058 0.0002789 Eth | $47,703,517.00 43,021,051.237 CRV | 4.7332% |
6 | Coinbase Exchange | CRV-USD | $1.06 0.0002795 Eth | $39,737,524.00 37,491,767.330 CRV | 4.1249% |
7 | Bybit | CRV-USDT | $1.057 0.0002787 Eth | $39,583,370.00 36,152,071.690 CRV | 3.9775% |
8 | HTX | CRV-USDT | $1.055 0.0002784 Eth | $35,567,015.00 32,565,408.752 CRV | 3.5829% |
9 | Bitunix | CRV-USDT | $1.058 0.0002791 Eth | $35,149,185.00 33,213,416.900 CRV | 3.6541% |
10 | Slex | CRV-USDT | $1.058 0.0002790 Eth | $20,263,164.00 18,568,265.000 CRV | 2.0429% |
11 | XT.COM | CRV-USDT | $1.052 0.0002769 Eth | $18,701,888.00 17,197,853.200 CRV | 1.8921% |
12 | BIT | CRV-USDT | $1.049 0.0002771 Eth | $18,256,555.00 17,410,194.483 CRV | 1.9155% |
13 | BTSE | CRV-USDT | $1.058 0.0002790 Eth | $17,673,303.00 16,698,214.299 CRV | 1.8371% |
14 | LBank | CRV-USDT | $1.058 0.0002790 Eth | $14,196,963.00 13,421,442.210 CRV | 1.4766% |
15 | DigiFinex | CRV-USDT | $1.057 0.0002789 Eth | $12,447,551.00 11,773,144.800 CRV | 1.2953% |
16 | Niza Global | CRV-USD | $1.058 0.0002791 Eth | $11,093,119.00 10,205,918.769 CRV | 1.1229% |
17 | Kraken | CRV-USD | $1.062 0.0002801 Eth | $10,846,130.00 10,212,928.327 CRV | 1.1236% |
18 | Hotcoin | CRV-USDT | $1.058 0.0002791 Eth | $9,840,335.00 9,300,158.800 CRV | 1.0232% |
19 | FameEX | CRV-USDT | $1.062 0.0002800 Eth | $9,231,278.00 8,490,263.014 CRV | 0.9341% |
20 | KuCoin | CRV-USDT | $1.058 0.0002791 Eth | $8,792,935.00 8,311,041.229 CRV | 0.9144% |
21 | BYDFi | CRV-USDT | $1.049 0.0002775 Eth | $8,759,696.00 8,349,601.100 CRV | 0.9186% |
22 | Currency.com | CRV-USD | $1.053 0.0002773 Eth | $7,299,239.00 6,930,864.000 CRV | 0.7625% |
23 | CoinW | CRV-USDT | $1.052 0.0002773 Eth | $7,178,311.00 6,822,362.845 CRV | 0.7506% |
24 | Bitrue | CRV-XRP | $1.063 0.0002804 Eth | $6,617,473.00 6,224,847.030 CRV | 0.6849% |
25 | Binance | CRV-BTC | $1.058 0.0002790 Eth | $6,131,226.00 5,879,962.100 CRV | 0.6469% |
26 | Biconomy.com | CRV-USDT | $1.052 0.0002778 Eth | $5,996,909.00 5,497,043.300 CRV | 0.6048% |
27 | Coinstore | CRV-USDT | $1.059 0.0002791 Eth | $5,939,318.00 5,455,242.100 CRV | 0.6002% |
28 | Bitrue | CRV-USDT | $1.062 0.0002807 Eth | $5,731,764.00 5,396,242.820 CRV | 0.5937% |
29 | Binance | CRV-USDC | $1.048 0.0002767 Eth | $5,632,772.00 5,126,212.000 CRV | 0.5640% |
30 | Dex-Trade | CRV-USDT | $1.049 0.0002769 Eth | $5,605,489.00 5,343,468.167 CRV | 0.5879% |
31 | HitBTC | CRV-USDT | $1.056 0.0002785 Eth | $5,406,506.00 4,961,180.600 CRV | 0.5458% |
32 | FMFW.io | CRV-USDT | $1.051 0.0002769 Eth | $5,238,036.00 4,982,006.300 CRV | 0.5481% |
33 | Trubit | CRV-USDT | $1.051 0.0002775 Eth | $4,664,022.00 4,303,772.100 CRV | 0.4735% |
34 | Toobit | CRV-USDT | $1.059 0.0002791 Eth | $4,577,022.00 4,210,233.000 CRV | 0.4632% |
35 | Hibt | CRV-USDT | $1.057 0.0002788 Eth | $4,475,944.00 4,102,963.728 CRV | 0.4514% |
36 | BingX | CRV-USDT | $1.058 0.0002790 Eth | $4,299,631.00 3,936,696.359 CRV | 0.4331% |
37 | Binance | CRV-TRY | $1.049 0.0002771 Eth | $4,009,181.00 3,629,066.500 CRV | 0.3993% |
38 | PointPay | CRV-USDT | $1.06 0.0002793 Eth | $3,752,958.00 3,452,278.451 CRV | 0.3798% |
39 | Ourbit | CRV-USDT | $1.06 0.0002794 Eth | $3,712,787.00 3,409,354.100 CRV | 0.3751% |
40 | Phemex | CRV-USDT | $1.057 0.0002788 Eth | $3,510,811.00 3,319,988.290 CRV | 0.3653% |
41 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $1.041 0.0002744 Eth | $3,499,877.00 3,357,009.953 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3693% |
42 | Bullish | CRV-USDC | $1.05 0.0002775 Eth | $3,476,833.00 3,167,704.358 CRV | 0.3485% |
43 | Luno | CRV-MYR | $1.065 0.0002808 Eth | $3,182,764.00 2,988,502.700 CRV | 0.3288% |
44 | Bithumb | CRV-KRW | $1.054 0.0002780 Eth | $3,081,655.00 2,923,410.990 CRV | 0.3216% |
45 | FMCPAY | CRV-USDT | $1.06 0.0002795 Eth | $2,927,886.00 2,679,819.330 CRV | 0.2948% |
46 | Bitkub | CRV-THB | $1.069 0.0002817 Eth | $2,879,730.00 2,695,072.789 CRV | 0.2965% |
47 | CoinEx | CRV-USDT | $1.048 0.0002767 Eth | $2,667,478.00 2,439,520.448 CRV | 0.2684% |
48 | Coinbase Exchange | CRV-EUR | $1.062 0.0002799 Eth | $2,373,156.00 2,235,306.750 CRV | 0.2459% |
49 | BitMart | CRV-USDT | $1.058 0.0002791 Eth | $2,252,992.00 2,129,515.660 CRV | 0.2343% |
50 | Icrypex | CRV-USDT | $1.058 0.0002790 Eth | $1,900,177.00 1,796,548.254 CRV | 0.1977% |
51 | WhiteBIT | CRV-BTC | $1.062 0.0002800 Eth | $1,764,312.00 1,660,941.900 CRV | 0.1827% |
52 | OKX | CRV-USDC | $1.058 0.0002791 Eth | $1,594,734.00 1,455,091.265 CRV | 0.1601% |
53 | WEEX | CRV-USDT | $1.046 0.0002762 Eth | $1,503,396.00 1,436,686.824 CRV | 0.1581% |
54 | Kraken | CRV-EUR | $1.061 0.0002798 Eth | $1,414,049.00 1,333,042.085 CRV | 0.1467% |
55 | Bit2Me | CRV-EUR | $1.058 0.0002792 Eth | $1,407,840.00 1,306,524.212 CRV | 0.1437% |
56 | Upbit | CRV-BTC | $1.054 0.0002781 Eth | $1,368,454.00 1,298,043.609 CRV | 0.1428% |
57 | LATOKEN | CRV-BTC | $1.058 0.0002790 Eth | $1,200,102.00 1,134,076.137 CRV | 0.1248% |
58 | P2B | CRV-USD | $1.048 0.0002762 Eth | $1,097,550.00 1,047,280.310 CRV | 0.1152% |
59 | Pionex | CRV-USDT | $1.048 0.0002765 Eth | $990,898.00 902,270.930 CRV | 0.0993% |
60 | WhiteBIT | CRV-TRY | $1.063 0.0002802 Eth | $943,973.00 888,292.500 CRV | 0.0977% |
61 | BitDelta | CRV-USDT | $1.058 0.0002791 Eth | $919,862.00 841,291.000 CRV | 0.0926% |
62 | Bitso | CRV-USD | $1.063 0.0002803 Eth | $870,608.00 819,118.457 CRV | 0.0901% |
63 | Gemini | CRV-USD | $1.057 0.0002787 Eth | $783,154.00 740,921.537 CRV | 0.0815% |
64 | CoinCatch | CRV-USDT | $1.055 0.0002781 Eth | $692,097.00 633,299.719 CRV | 0.0697% |
65 | BloFin | CRV-USDT | $1.058 0.0002788 Eth | $660,447.00 598,970.600 CRV | 0.0659% |
66 | BigONE | CRV-USDT | $1.075 0.0002844 Eth | $624,279.00 580,477.486 CRV | 0.0639% |
67 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.055 0.0002782 Eth | $554,123.00 517,875.199 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0570% |
68 | Curve (Optimism) | 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.073 0.0002830 Eth | $504,926.00 515,159.418 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6 | 0.0567% |
69 | Curve (Arbitrum) | 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.049 0.0002767 Eth | $494,722.00 516,340.071 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5 | 0.0568% |
70 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.05 0.0002768 Eth | $448,363.00 413,271.411 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0455% |
71 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.063 0.0002801 Eth | $437,264.00 406,269.334 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0447% |
72 | Bitazza | CRV-USDT | $1.053 0.0002771 Eth | $427,035.00 388,562.800 CRV | 0.0427% |
73 | WEEX | CRV-USDC | $1.05 0.0002777 Eth | $408,571.00 374,799.000 CRV | 0.0412% |
74 | Coinbase Exchange | CRV-GBP | $1.059 0.0002793 Eth | $351,220.00 331,660.840 CRV | 0.0365% |
75 | AscendEX (BitMax) | CRV-USDT | $1.056 0.0002786 Eth | $349,653.00 331,022.900 CRV | 0.0364% |
76 | BVOX | CRV-USDT | $1.062 0.0002800 Eth | $314,814.00 289,427.700 CRV | 0.0318% |
77 | KickEX | CRV-USDT | $1.062 0.0002802 Eth | $235,858.00 221,990.386 CRV | 0.0244% |
78 | Bitget | CRV-BTC | $1.056 0.0002785 Eth | $227,770.00 210,671.226 CRV | 0.0232% |
79 | LATOKEN | CRV-USDT | $1.05 0.0002778 Eth | $211,222.00 201,165.371 CRV | 0.0221% |
80 | Dex-Trade | CRV-BTC | $1.058 0.0002786 Eth | $156,802.00 148,221.330 CRV | 0.0163% |
81 | TokoCrypto | CRV-USDT | $1.058 0.0002791 Eth | $121,387.00 114,702.287 CRV | 0.0126% |
82 | Globe | CRV-USDT | $1.059 0.0002792 Eth | $96,401.00 88,327.060 CRV | 0.0097% |
83 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.054 0.0002780 Eth | $81,460.00 76,652.654 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0084% |
84 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.057 0.0002787 Eth | $70,956.00 66,302.202 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0073% |
85 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.062 0.0002799 Eth | $37,980.00 35,521.844 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0039% |
86 | Gate.io | CRV-ETH | $1.056 0.0002785 Eth | $32,743.00 30,502.130 CRV | 0.0034% |
87 | Coinone | CRV-KRW | $1.048 0.0002766 Eth | $25,873.00 24,676.936 CRV | 0.0027% |
88 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.056 0.0002784 Eth | $17,024.90 15,989.531 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0018% |
89 | Luno | CRV-XBT | $1.058 0.0002790 Eth | $13,074.54 12,354.200 CRV | 0.0014% |
90 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.081 0.0002847 Eth | $8,383.19 7,691.640 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0008% |
91 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $1.048 0.0002764 Eth | $6,819.08 6,258.063 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0007% |
92 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $1.034 0.0002722 Eth | $6,244.27 6,413.820 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0007% |
93 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.058 0.0002789 Eth | $5,746.72 5,228.415 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0006% |
94 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $1.065 0.0002809 Eth | $3,301.89 2,979.057 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0003% |
95 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.053 0.0002776 Eth | $2,533.20 2,359.196 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0003% |
96 | CEX.IO | CRV-USDT | $1.06 0.0002794 Eth | $1,914.82 1,710.431 CRV | 0.0002% |
97 | Gravity Finance | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.057 0.0002786 Eth | $1,002.50 930.846 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
98 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.048 0.0002765 Eth | $939.31 851.778 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0001% |
99 | Energiswap | 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E-0XA55F26319462355474A9F2C8790860776A329AA4 | $1.058 0.0002789 Eth | $467.60 413.136 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E | 0.0000% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.053 0.0002782 Eth | $215.49 200.663 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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