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Overview
Max Total Supply
2,200,941,953.194277416813294119 CRV
Holders
88,566 ( -0.161%)
Market
Price
$1.17 @ 0.000294 ETH (-4.35%)
Onchain Market Cap
$2,573,946,387.98
Circulating Supply Market Cap
$1,458,079,428.43
Other Info
Token Contract (WITH 18 Decimals)
Balance
1,041.66 CRVValue
$1,218.20 ( ~0.306217491649624 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.17 0.0002931 Eth | $104,288,282.00 88,036,776.000 CRV | 22.9866% |
2 | Websea | CRV-USDT | $1.17 0.0002950 Eth | $54,518,838.00 0.000 CRV | 0.0000% |
3 | WhiteBIT | CRV-USDT | $1.17 0.0002928 Eth | $52,999,001.00 45,482,306.844 CRV | 11.8756% |
4 | Gate.io | CRV-USDT | $1.16 0.0002926 Eth | $32,132,955.00 27,086,593.940 CRV | 7.0724% |
5 | OKX | CRV-USDT | $1.17 0.0002927 Eth | $28,937,086.00 24,420,013.973 CRV | 6.3761% |
6 | Slex | CRV-USDT | $1.17 0.0002956 Eth | $22,792,705.00 19,246,390.200 CRV | 5.0253% |
7 | Coinbase Exchange | CRV-USD | $1.17 0.0002930 Eth | $16,782,072.00 14,395,327.070 CRV | 3.7587% |
8 | MEXC | CRV-USDT | $1.17 0.0002946 Eth | $15,769,912.00 13,488,408.867 CRV | 3.5219% |
9 | Bitunix | CRV-USDT | $1.17 0.0002939 Eth | $14,636,144.00 12,513,461.300 CRV | 3.2673% |
10 | Bybit | CRV-USDT | $1.17 0.0002931 Eth | $13,983,994.00 11,809,353.480 CRV | 3.0835% |
11 | Bitget | CRV-USDT | $1.17 0.0002931 Eth | $11,572,249.00 9,752,513.556 CRV | 2.5464% |
12 | HTX | CRV-USDT | $1.17 0.0002930 Eth | $11,392,068.00 9,579,859.392 CRV | 2.5013% |
13 | BTSE | CRV-USDT | $1.17 0.0002934 Eth | $10,677,829.00 9,146,505.047 CRV | 2.3882% |
14 | XT.COM | CRV-USDT | $1.17 0.0002952 Eth | $8,436,295.00 7,120,928.900 CRV | 1.8593% |
15 | DigiFinex | CRV-USDT | $1.17 0.0002931 Eth | $5,626,142.00 4,823,370.600 CRV | 1.2594% |
16 | Kraken | CRV-USD | $1.17 0.0002934 Eth | $4,689,572.00 4,015,044.268 CRV | 1.0483% |
17 | LBank | CRV-USDT | $1.16 0.0002927 Eth | $4,587,013.00 3,937,930.020 CRV | 1.0282% |
18 | FameEX | CRV-USDT | $1.17 0.0002948 Eth | $4,229,056.00 3,568,284.986 CRV | 0.9317% |
19 | KuCoin | CRV-USDT | $1.17 0.0002929 Eth | $4,203,874.00 3,605,770.697 CRV | 0.9415% |
20 | CoinW | CRV-USDT | $1.17 0.0002942 Eth | $4,154,482.00 3,550,138.847 CRV | 0.9270% |
21 | BYDFi | CRV-USDT | $1.17 0.0002956 Eth | $4,082,433.00 3,476,967.900 CRV | 0.9078% |
22 | Dex-Trade | CRV-USDT | $1.17 0.0002940 Eth | $3,580,860.00 3,066,394.900 CRV | 0.8006% |
23 | Biconomy.com | CRV-USDT | $1.17 0.0002950 Eth | $3,561,954.00 3,006,847.510 CRV | 0.7851% |
24 | Bitrue | CRV-XRP | $1.17 0.0002954 Eth | $3,483,295.00 2,969,308.490 CRV | 0.7753% |
25 | Bitvavo | CRV-EUR | $1.17 0.0002944 Eth | $3,401,809.00 2,905,570.151 CRV | 0.7587% |
26 | Phemex | CRV-USDT | $1.17 0.0002938 Eth | $3,056,878.00 2,614,828.100 CRV | 0.6827% |
27 | HitBTC | CRV-USDT | $1.17 0.0002931 Eth | $3,012,262.00 2,538,226.600 CRV | 0.6627% |
28 | FMFW.io | CRV-USDT | $1.17 0.0002928 Eth | $2,957,040.00 2,537,335.900 CRV | 0.6625% |
29 | Coinstore | CRV-USDT | $1.17 0.0002942 Eth | $2,948,266.00 2,486,439.900 CRV | 0.6492% |
30 | FMCPAY | CRV-USDT | $1.17 0.0002938 Eth | $2,785,580.00 2,352,821.880 CRV | 0.6143% |
31 | Bullish | CRV-USDC | $1.17 0.0002955 Eth | $2,625,324.00 2,218,304.293 CRV | 0.5792% |
32 | Bitrue | CRV-USDT | $1.17 0.0002930 Eth | $2,446,588.00 2,097,421.660 CRV | 0.5476% |
33 | Binance | CRV-TRY | $1.18 0.0002958 Eth | $2,421,062.00 2,028,807.900 CRV | 0.5297% |
34 | Luno | CRV-MYR | $1.18 0.0002957 Eth | $2,292,403.00 1,948,321.820 CRV | 0.5087% |
35 | CoinEx | CRV-USDT | $1.17 0.0002954 Eth | $2,214,582.00 1,867,027.436 CRV | 0.4875% |
36 | Trubit | CRV-USDT | $1.17 0.0002949 Eth | $2,179,517.00 1,845,566.900 CRV | 0.4819% |
37 | Bitkub | CRV-THB | $1.17 0.0002947 Eth | $2,148,909.00 1,832,894.033 CRV | 0.4786% |
38 | Toobit | CRV-USDT | $1.17 0.0002957 Eth | $2,113,546.00 1,783,797.200 CRV | 0.4658% |
39 | Binance | CRV-BTC | $1.17 0.0002929 Eth | $2,110,786.00 1,781,183.900 CRV | 0.4651% |
40 | BingX | CRV-USDT | $1.17 0.0002932 Eth | $1,984,247.00 1,680,470.136 CRV | 0.4388% |
41 | Hibt | CRV-USDT | $1.17 0.0002936 Eth | $1,731,346.00 1,460,779.406 CRV | 0.3814% |
42 | Ourbit | CRV-USDT | $1.17 0.0002930 Eth | $1,722,024.00 1,454,332.860 CRV | 0.3797% |
43 | PointPay | CRV-USDT | $1.17 0.0002928 Eth | $1,700,510.00 1,436,657.613 CRV | 0.3751% |
44 | WEEX | CRV-USDT | $1.17 0.0002950 Eth | $1,506,095.00 1,284,574.314 CRV | 0.3354% |
45 | Binance | CRV-USDC | $1.17 0.0002958 Eth | $1,298,453.00 1,092,973.400 CRV | 0.2854% |
46 | Bithumb | CRV-KRW | $1.15 0.0002881 Eth | $1,118,563.00 975,662.142 CRV | 0.2547% |
47 | BitMart | CRV-USDT | $1.17 0.0002942 Eth | $1,049,431.00 896,514.340 CRV | 0.2341% |
48 | WhiteBIT | CRV-BTC | $1.17 0.0002951 Eth | $997,614.00 849,634.700 CRV | 0.2218% |
49 | Currency.com | CRV-USD | $1.17 0.0002938 Eth | $922,422.00 789,306.000 CRV | 0.2061% |
50 | OKX | CRV-USDC | $1.17 0.0002929 Eth | $875,077.00 739,888.442 CRV | 0.1932% |
51 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.17 0.0002951 Eth | $832,141.00 708,145.185 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1849% |
52 | P2B | CRV-USD | $1.17 0.0002933 Eth | $802,184.00 687,389.890 CRV | 0.1795% |
53 | LocalTrade | CRV-USDT | $1.18 0.0002963 Eth | $714,603.00 606,996.744 CRV | 0.1585% |
54 | Curve (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XD1B5651E55D4CEED36251C61C50C889B36F6ABB5 | $1.17 0.0002941 Eth | $673,328.00 537,676.535 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1404% |
55 | Hotcoin | CRV-USDT | $1.17 0.0002954 Eth | $625,636.00 532,751.471 CRV | 0.1391% |
56 | BitDelta | CRV-USDT | $1.17 0.0002940 Eth | $602,238.00 508,027.500 CRV | 0.1326% |
57 | Nonkyc.io | CRV-USDT | $1.17 0.0002935 Eth | $573,537.00 484,486.491 CRV | 0.1265% |
58 | Kraken | CRV-EUR | $1.17 0.0002950 Eth | $522,092.00 444,566.922 CRV | 0.1161% |
59 | Bit2Me | CRV-EUR | $1.17 0.0002945 Eth | $521,692.00 436,563.863 CRV | 0.1140% |
60 | Gemini | CRV-USD | $1.16 0.0002926 Eth | $414,801.00 356,082.505 CRV | 0.0930% |
61 | Icrypex | CRV-USDT | $1.17 0.0002949 Eth | $393,541.00 336,417.133 CRV | 0.0878% |
62 | BloFin | CRV-USDT | $1.16 0.0002927 Eth | $376,901.00 318,982.700 CRV | 0.0833% |
63 | Coinbase Exchange | CRV-EUR | $1.17 0.0002934 Eth | $375,737.00 321,885.710 CRV | 0.0840% |
64 | WhiteBIT | CRV-TRY | $1.17 0.0002939 Eth | $372,746.00 318,553.600 CRV | 0.0832% |
65 | Pionex | CRV-USDT | $1.18 0.0002960 Eth | $366,406.00 307,851.875 CRV | 0.0804% |
66 | LATOKEN | CRV-BTC | $1.17 0.0002943 Eth | $365,094.00 312,699.570 CRV | 0.0816% |
67 | WEEX | CRV-USDC | $1.17 0.0002939 Eth | $322,089.00 271,452.000 CRV | 0.0709% |
68 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.18 0.0002954 Eth | $316,574.00 272,964.590 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0713% |
69 | BVOX | CRV-USDT | $1.17 0.0002947 Eth | $215,700.00 181,920.800 CRV | 0.0475% |
70 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.17 0.0002946 Eth | $200,070.00 29,298.976 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0077% |
71 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.18 0.0002955 Eth | $182,566.00 156,071.826 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0408% |
72 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.16 0.0002924 Eth | $160,695.00 61,144.878 0X4200000000000000000000000000000000000042 | 0.0160% |
73 | Coinbase Exchange | CRV-GBP | $1.17 0.0002929 Eth | $148,969.00 127,819.230 CRV | 0.0334% |
74 | Binance US | CRV-USDT | $1.17 0.0002949 Eth | $142,535.00 121,458.483 CRV | 0.0317% |
75 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.17 0.0002940 Eth | $138,326.00 118,852.060 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0310% |
76 | LATOKEN | CRV-USDT | $1.17 0.0002940 Eth | $103,209.00 88,311.017 CRV | 0.0231% |
77 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.17 0.0002951 Eth | $95,469.00 81,154.988 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0212% |
78 | BigONE | CRV-USDT | $1.15 0.0002888 Eth | $93,049.00 80,816.672 CRV | 0.0211% |
79 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.17 0.0002952 Eth | $86,817.00 73,283.737 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0191% |
80 | Crypto.com Exchange | CRV-USDT | $1.18 0.0002956 Eth | $72,165.00 61,357.200 CRV | 0.0160% |
81 | Bitstamp | CRV-USD | $1.18 0.0002954 Eth | $69,315.00 58,943.164 CRV | 0.0154% |
82 | Coinbase Exchange | CRV-BTC | $1.18 0.0002958 Eth | $65,520.00 55,664.340 CRV | 0.0145% |
83 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.17 0.0002938 Eth | $64,828.00 54,934.734 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0143% |
84 | TokoCrypto | CRV-USDT | $1.17 0.0002931 Eth | $63,265.00 54,216.119 CRV | 0.0142% |
85 | Azbit | CRV-USDT | $1.17 0.0002942 Eth | $59,738.00 50,456.354 CRV | 0.0132% |
86 | Bitstamp | CRV-EUR | $1.16 0.0002908 Eth | $37,362.00 32,277.766 CRV | 0.0084% |
87 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.18 0.0002979 Eth | $34,259.00 28,756.204 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0075% |
88 | Nonkyc.io | CRV-BTC | $1.17 0.0002948 Eth | $26,197.00 22,122.192 CRV | 0.0058% |
89 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $1.18 0.0002956 Eth | $25,482.00 21,565.410 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0056% |
90 | HashKey Global | CRV-USDT | $1.17 0.0002939 Eth | $15,625.01 13,183.600 CRV | 0.0034% |
91 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.16 0.0002923 Eth | $14,224.02 12,112.122 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0032% |
92 | Globe | CRV-USDT | $1.17 0.0002940 Eth | $13,349.51 11,182.376 CRV | 0.0029% |
93 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.17 0.0002944 Eth | $10,606.08 8,932.265 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0023% |
94 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.17 0.0002929 Eth | $10,094.76 8,676.923 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0023% |
95 | CEX.IO | CRV-USDT | $1.17 0.0002929 Eth | $7,619.54 6,399.912 CRV | 0.0017% |
96 | Gate.io | CRV-ETH | $1.17 0.0002933 Eth | $4,797.84 4,055.140 CRV | 0.0011% |
97 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.17 0.0002937 Eth | $3,863.18 3,314.039 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0009% |
98 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.17 0.0002950 Eth | $1,320.31 1,137.991 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0003% |
99 | Nominex | CRV-USDT | $1.17 0.0002921 Eth | $266.36 227.668 CRV | 0.0001% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.16 0.0002924 Eth | $85.97 74.561 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
- No Contract Security Audit Submitted- Submit Audit Here
[{"name":"Transfer","inputs":[{"type":"address","name":"_from","indexed":true},{"type":"address","name":"_to","indexed":true},{"type":"uint256","name":"_value","indexed":false}],"anonymous":false,"type":"event"},{"name":"Approval","inputs":[{"type":"address","name":"_owner","indexed":true},{"type":"address","name":"_spender","indexed":true},{"type":"uint256","name":"_value","indexed":false}],"anonymous":false,"type":"event"},{"name":"UpdateMiningParameters","inputs":[{"type":"uint256","name":"time","indexed":false},{"type":"uint256","name":"rate","indexed":false},{"type":"uint256","name":"supply","indexed":false}],"anonymous":false,"type":"event"},{"name":"SetMinter","inputs":[{"type":"address","name":"minter","indexed":false}],"anonymous":false,"type":"event"},{"name":"SetAdmin","inputs":[{"type":"address","name":"admin","indexed":false}],"anonymous":false,"type":"event"},{"outputs":[],"inputs":[{"type":"string","name":"_name"},{"type":"string","name":"_symbol"},{"type":"uint256","name":"_decimals"}],"stateMutability":"nonpayable","type":"constructor"},{"name":"update_mining_parameters","outputs":[],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":148748},{"name":"start_epoch_time_write","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":149603},{"name":"future_epoch_time_write","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":149806},{"name":"available_supply","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":4018},{"name":"mintable_in_timeframe","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"uint256","name":"start"},{"type":"uint256","name":"end"}],"stateMutability":"view","type":"function","gas":2216141},{"name":"set_minter","outputs":[],"inputs":[{"type":"address","name":"_minter"}],"stateMutability":"nonpayable","type":"function","gas":38698},{"name":"set_admin","outputs":[],"inputs":[{"type":"address","name":"_admin"}],"stateMutability":"nonpayable","type":"function","gas":37837},{"name":"totalSupply","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1421},{"name":"allowance","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"_owner"},{"type":"address","name":"_spender"}],"stateMutability":"view","type":"function","gas":1759},{"name":"transfer","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"_to"},{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":75139},{"name":"transferFrom","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"_from"},{"type":"address","name":"_to"},{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":111433},{"name":"approve","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"_spender"},{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":39288},{"name":"mint","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"_to"},{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":228030},{"name":"burn","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"uint256","name":"_value"}],"stateMutability":"nonpayable","type":"function","gas":74999},{"name":"set_name","outputs":[],"inputs":[{"type":"string","name":"_name"},{"type":"string","name":"_symbol"}],"stateMutability":"nonpayable","type":"function","gas":178270},{"name":"name","outputs":[{"type":"string","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":8063},{"name":"symbol","outputs":[{"type":"string","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":7116},{"name":"decimals","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1721},{"name":"balanceOf","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"arg0"}],"stateMutability":"view","type":"function","gas":1905},{"name":"minter","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1781},{"name":"admin","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1811},{"name":"mining_epoch","outputs":[{"type":"int128","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1841},{"name":"start_epoch_time","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1871},{"name":"rate","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1901}]
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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