Overview
Max Total Supply
2,200,722,230.635808581865985232 CRV
Holders
88,677 ( 0.104%)
Market
Price
$1.18 @ 0.000294 ETH (-4.90%)
Onchain Market Cap
$2,598,722,921.19
Circulating Supply Market Cap
$1,471,956,286.65
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.19 0.0002948 Eth | $167,474,454.00 135,690,116.100 CRV | 25.3166% |
2 | WhiteBIT | CRV-USDT | $1.18 0.0002942 Eth | $77,549,363.00 65,828,132.437 CRV | 12.2820% |
3 | OKX | CRV-USDT | $1.18 0.0002944 Eth | $48,858,819.00 39,747,016.553 CRV | 7.4159% |
4 | Coinbase Exchange | CRV-USD | $1.18 0.0002947 Eth | $29,516,597.00 24,925,347.550 CRV | 4.6505% |
5 | MEXC | CRV-USDT | $1.18 0.0002949 Eth | $26,436,954.00 22,336,564.864 CRV | 4.1675% |
6 | Bitget | CRV-USDT | $1.18 0.0002947 Eth | $25,570,821.00 20,591,488.604 CRV | 3.8419% |
7 | Slex | CRV-USDT | $1.18 0.0002947 Eth | $23,292,920.00 19,098,392.100 CRV | 3.5633% |
8 | Bitunix | CRV-USDT | $1.18 0.0002947 Eth | $23,232,033.00 19,608,257.800 CRV | 3.6584% |
9 | HTX | CRV-USDT | $1.19 0.0002950 Eth | $22,295,121.00 18,125,486.820 CRV | 3.3818% |
10 | Bybit | CRV-USDT | $1.18 0.0002945 Eth | $22,034,982.00 17,893,203.660 CRV | 3.3385% |
11 | BTSE | CRV-USDT | $1.18 0.0002947 Eth | $15,596,872.00 13,164,722.182 CRV | 2.4562% |
12 | XT.COM | CRV-USDT | $1.18 0.0002959 Eth | $13,609,841.00 11,029,313.200 CRV | 2.0578% |
13 | DigiFinex | CRV-USDT | $1.18 0.0002947 Eth | $8,715,364.00 7,355,925.800 CRV | 1.3724% |
14 | Kraken | CRV-USD | $1.19 0.0002950 Eth | $7,877,480.00 6,642,057.715 CRV | 1.2393% |
15 | KuCoin | CRV-USDT | $1.19 0.0002948 Eth | $6,966,304.00 5,876,417.830 CRV | 1.0964% |
16 | FameEX | CRV-USDT | $1.19 0.0002960 Eth | $6,724,253.00 5,449,962.099 CRV | 1.0168% |
17 | BYDFi | CRV-USDT | $1.18 0.0002949 Eth | $6,273,443.00 5,295,401.900 CRV | 0.9880% |
18 | CoinW | CRV-USDT | $1.18 0.0002951 Eth | $5,963,344.00 5,044,260.972 CRV | 0.9411% |
19 | Dex-Trade | CRV-USDT | $1.18 0.0002946 Eth | $5,461,174.00 4,618,438.650 CRV | 0.8617% |
20 | LBank | CRV-USDT | $1.19 0.0002949 Eth | $5,387,223.00 4,543,617.360 CRV | 0.8477% |
21 | Binance | CRV-TRY | $1.19 0.0002961 Eth | $5,357,499.00 4,318,898.200 CRV | 0.8058% |
22 | Biconomy.com | CRV-USDT | $1.18 0.0002941 Eth | $4,979,392.00 4,051,553.810 CRV | 0.7559% |
23 | Coinstore | CRV-USDT | $1.19 0.0002968 Eth | $4,478,658.00 3,630,679.300 CRV | 0.6774% |
24 | HitBTC | CRV-USDT | $1.18 0.0002943 Eth | $4,376,405.00 3,571,984.200 CRV | 0.6664% |
25 | Binance | CRV-USDC | $1.19 0.0002964 Eth | $4,329,574.00 3,504,649.200 CRV | 0.6539% |
26 | FMFW.io | CRV-USDT | $1.18 0.0002946 Eth | $4,228,834.00 3,576,913.500 CRV | 0.6674% |
27 | Currency.com | CRV-USD | $1.18 0.0002950 Eth | $4,097,213.00 3,460,776.000 CRV | 0.6457% |
28 | Binance | CRV-BTC | $1.18 0.0002946 Eth | $3,649,813.00 2,942,795.300 CRV | 0.5491% |
29 | Luno | CRV-MYR | $1.19 0.0002954 Eth | $3,645,335.00 3,075,062.290 CRV | 0.5737% |
30 | Bitvavo | CRV-EUR | $1.18 0.0002938 Eth | $3,457,056.00 2,928,171.628 CRV | 0.5463% |
31 | Bitrue | CRV-USDT | $1.18 0.0002942 Eth | $3,420,670.00 2,892,796.890 CRV | 0.5397% |
32 | Bitkub | CRV-THB | $1.18 0.0002935 Eth | $3,352,357.00 2,845,114.890 CRV | 0.5308% |
33 | Toobit | CRV-USDT | $1.18 0.0002942 Eth | $3,339,286.00 2,707,752.100 CRV | 0.5052% |
34 | Bullish | CRV-USDC | $1.18 0.0002946 Eth | $3,228,726.00 2,636,655.332 CRV | 0.4919% |
35 | FMCPAY | CRV-USDT | $1.18 0.0002947 Eth | $3,161,334.00 2,583,699.060 CRV | 0.4821% |
36 | Phemex | CRV-USDT | $1.18 0.0002952 Eth | $3,120,134.00 2,633,110.240 CRV | 0.4913% |
37 | BingX | CRV-USDT | $1.19 0.0002947 Eth | $3,022,908.00 2,447,286.291 CRV | 0.4566% |
38 | Hibt | CRV-USDT | $1.19 0.0002951 Eth | $2,926,390.00 2,377,351.172 CRV | 0.4436% |
39 | CoinEx | CRV-USDT | $1.18 0.0002958 Eth | $2,858,283.00 2,342,015.394 CRV | 0.4370% |
40 | PointPay | CRV-USDT | $1.19 0.0002949 Eth | $2,790,471.00 2,260,701.970 CRV | 0.4218% |
41 | Ourbit | CRV-USDT | $1.18 0.0002948 Eth | $2,688,539.00 2,179,041.870 CRV | 0.4066% |
42 | WhiteBIT | CRV-BTC | $1.19 0.0002970 Eth | $2,602,960.00 2,189,118.700 CRV | 0.4084% |
43 | Trubit | CRV-USDT | $1.18 0.0002947 Eth | $1,978,068.00 1,618,105.000 CRV | 0.3019% |
44 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.18 0.0002942 Eth | $1,646,419.00 1,328,872.805 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.2479% |
45 | WEEX | CRV-USDT | $1.19 0.0002950 Eth | $1,504,747.00 1,269,328.617 CRV | 0.2368% |
46 | P2B | CRV-USD | $1.18 0.0002940 Eth | $1,292,895.00 1,097,534.060 CRV | 0.2048% |
47 | Coinbase Exchange | CRV-EUR | $1.18 0.0002943 Eth | $1,291,421.00 1,092,090.440 CRV | 0.2038% |
48 | OKX | CRV-USDC | $1.18 0.0002938 Eth | $1,062,889.00 863,136.066 CRV | 0.1610% |
49 | Bit2Me | CRV-EUR | $1.18 0.0002939 Eth | $957,062.00 787,654.097 CRV | 0.1470% |
50 | Kraken | CRV-EUR | $1.18 0.0002939 Eth | $942,831.00 797,804.906 CRV | 0.1489% |
51 | Hotcoin | CRV-USDT | $1.18 0.0002941 Eth | $885,059.00 748,873.171 CRV | 0.1397% |
52 | BitDelta | CRV-USDT | $1.19 0.0002947 Eth | $816,326.00 663,997.300 CRV | 0.1239% |
53 | WhiteBIT | CRV-TRY | $1.19 0.0002961 Eth | $798,495.00 671,989.600 CRV | 0.1254% |
54 | Gemini | CRV-USD | $1.19 0.0002948 Eth | $775,491.00 654,201.827 CRV | 0.1221% |
55 | Pionex | CRV-USDT | $1.18 0.0002958 Eth | $642,119.00 520,644.982 CRV | 0.0971% |
56 | Bitso | CRV-USD | $1.19 0.0002954 Eth | $621,547.00 524,180.445 CRV | 0.0978% |
57 | Nonkyc.io | CRV-USDT | $1.18 0.0002937 Eth | $605,201.00 494,880.951 CRV | 0.0923% |
58 | BloFin | CRV-USDT | $1.18 0.0002959 Eth | $546,751.00 445,187.700 CRV | 0.0831% |
59 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.18 0.0002934 Eth | $487,124.00 395,259.019 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0737% |
60 | Bitazza | CRV-USDT | $1.18 0.0002951 Eth | $425,764.00 348,004.100 CRV | 0.0649% |
61 | WEEX | CRV-USDC | $1.19 0.0002950 Eth | $420,787.00 343,937.000 CRV | 0.0642% |
62 | Upbit | CRV-BTC | $1.17 0.0002906 Eth | $403,330.00 345,148.113 CRV | 0.0644% |
63 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.18 0.0002933 Eth | $361,648.00 294,177.816 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0549% |
64 | AscendEX (BitMax) | CRV-USDT | $1.18 0.0002938 Eth | $359,123.00 303,991.500 CRV | 0.0567% |
65 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.18 0.0002930 Eth | $335,666.00 298,213.638 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0556% |
66 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.17 0.0002923 Eth | $279,018.00 108,875.536 0X4200000000000000000000000000000000000042 | 0.0203% |
67 | BVOX | CRV-USDT | $1.18 0.0002941 Eth | $272,417.00 222,674.400 CRV | 0.0415% |
68 | Coinbase Exchange | CRV-GBP | $1.18 0.0002928 Eth | $258,046.00 219,382.370 CRV | 0.0409% |
69 | Bitget | CRV-BTC | $1.18 0.0002944 Eth | $196,751.00 155,356.497 CRV | 0.0290% |
70 | Coinbase Exchange | CRV-BTC | $1.19 0.0002969 Eth | $172,874.00 144,934.760 CRV | 0.0270% |
71 | LATOKEN | CRV-USDT | $1.18 0.0002943 Eth | $160,018.00 135,223.627 CRV | 0.0252% |
72 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.17 0.0002904 Eth | $145,036.00 117,659.982 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0220% |
73 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.19 0.0002956 Eth | $137,222.00 110,886.581 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0207% |
74 | Bitstamp | CRV-USD | $1.19 0.0002950 Eth | $126,423.00 106,585.120 CRV | 0.0199% |
75 | BigONE | CRV-USDT | $1.18 0.0002939 Eth | $122,180.00 103,447.803 CRV | 0.0193% |
76 | Dex-Trade | CRV-BTC | $1.18 0.0002940 Eth | $117,808.00 100,067.000 CRV | 0.0187% |
77 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.17 0.0002904 Eth | $110,011.00 90,446.612 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0169% |
78 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.18 0.0002938 Eth | $105,741.00 86,641.229 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0162% |
79 | TokoCrypto | CRV-USDT | $1.18 0.0002954 Eth | $86,982.00 73,558.777 CRV | 0.0137% |
80 | Azbit | CRV-USDT | $1.18 0.0002934 Eth | $61,177.00 50,162.604 CRV | 0.0094% |
81 | Bitstamp | CRV-EUR | $1.18 0.0002945 Eth | $51,167.00 43,219.343 CRV | 0.0081% |
82 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.18 0.0002940 Eth | $43,955.00 35,207.895 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0066% |
83 | Nonkyc.io | CRV-BTC | $1.18 0.0002935 Eth | $32,415.00 26,426.789 CRV | 0.0049% |
84 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.19 0.0002949 Eth | $19,063.25 15,532.568 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0029% |
85 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.18 0.0002937 Eth | $18,979.86 15,351.902 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0029% |
86 | HashKey Global | CRV-USDT | $1.19 0.0002962 Eth | $15,430.56 12,594.700 CRV | 0.0023% |
87 | Gate.io | CRV-BTC | $1.19 0.0002956 Eth | $12,475.90 10,137.095 CRV | 0.0019% |
88 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.19 0.0002952 Eth | $12,369.65 9,989.733 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0019% |
89 | Gate.io | CRV-TRY | $1.18 0.0002943 Eth | $12,124.66 9,779.275 CRV | 0.0018% |
90 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.18 0.0002936 Eth | $11,753.58 9,625.306 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0018% |
91 | Gate.io | CRV-ETH | $1.19 0.0002951 Eth | $11,071.63 8,964.860 CRV | 0.0017% |
92 | PancakeSwap V3 (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.17 0.0002931 Eth | $9,211.47 7,517.735 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0014% |
93 | DeFi Swap | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.18 0.0002940 Eth | $8,891.26 7,118.701 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0013% |
94 | Sushiswap (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.18 0.0002949 Eth | $4,472.83 3,613.759 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0007% |
95 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $1.17 0.0002921 Eth | $3,304.19 2,694.469 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0005% |
96 | Gravity Finance | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.17 0.0002918 Eth | $707.47 572.982 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
97 | Nominex | CRV-USDT | $1.18 0.0002946 Eth | $266.26 224.764 CRV | 0.0000% |
98 | Swapr (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.18 0.0002940 Eth | $253.99 202.256 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0000% |
99 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.18 0.0002956 Eth | $234.29 189.413 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0000% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.17 0.0002929 Eth | $164.16 132.310 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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