Overview
Max Total Supply
2,138,835,378.347053623220444929 CRV
Holders
86,443 ( 0.008%)
Market
Price
$0.27 @ 0.000083 ETH (-6.07%)
Onchain Market Cap
$575,124,756.27
Circulating Supply Market Cap
$335,184,203.69
Other Info
Token Contract (WITH 18 Decimals)
Balance
6,270.94777 CRVValue
$1,686.23 ( ~0.518080013408326 Eth) [0.0003%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | CRV-USDT | $0.2688 0.0000823 Eth | $24,029,963.00 86,630,737.100 CRV | 23.9902% |
2 | ![]() | CRV-USDT | $0.269 0.0000823 Eth | $8,982,135.00 32,335,466.576 CRV | 8.9545% |
3 | ![]() | CRV-USDT | $0.2688 0.0000823 Eth | $8,164,363.00 29,413,984.868 CRV | 8.1455% |
4 | ![]() | CRV-USDT | $0.2693 0.0000824 Eth | $7,307,978.00 26,330,174.500 CRV | 7.2915% |
5 | ![]() | CRV-USDT | $0.2695 0.0000824 Eth | $5,770,651.00 20,791,415.088 CRV | 5.7577% |
6 | ![]() | CRV-USDT | $0.2689 0.0000823 Eth | $5,661,770.00 20,413,747.350 CRV | 5.6531% |
7 | ![]() | CRV-USDT | $0.2694 0.0000823 Eth | $3,777,165.00 14,019,876.781 CRV | 3.8824% |
8 | ![]() | CRV-USDT | $0.2689 0.0000823 Eth | $3,712,423.00 13,385,723.820 CRV | 3.7068% |
9 | ![]() | CRV-USDT | $0.2696 0.0000825 Eth | $2,968,592.00 10,664,534.500 CRV | 2.9533% |
10 | ![]() | CRV-USDT | $0.2689 0.0000822 Eth | $2,682,017.00 9,973,453.300 CRV | 2.7619% |
11 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.2703 0.0000825 Eth | $2,183,179.00 8,004,545.733 0XD533A949740BB3306D119CC777FA900BA034CD52 | 2.2167% |
12 | ![]() | CRV-USDT | $0.2689 0.0000822 Eth | $1,925,703.00 6,941,088.700 CRV | 1.9222% |
13 | ![]() | CRV-USDT | $0.2689 0.0000823 Eth | $1,801,925.00 6,702,114.620 CRV | 1.8560% |
14 | ![]() | CRV-USDT | $0.2695 0.0000824 Eth | $1,749,014.00 6,288,020.300 CRV | 1.7413% |
15 | ![]() | CRV-USDT | $0.2695 0.0000825 Eth | $1,573,356.00 5,667,485.800 CRV | 1.5695% |
16 | ![]() | CRV-USDT | $0.2688 0.0000823 Eth | $1,433,424.00 5,333,627.700 CRV | 1.4770% |
17 | ![]() | CRV-USDT | $0.2696 0.0000825 Eth | $1,298,850.00 4,815,840.200 CRV | 1.3336% |
18 | ![]() | CRV-USD | $0.2686 0.0000822 Eth | $1,251,911.00 4,660,876.720 CRV | 1.2907% |
19 | ![]() | CRV-USDT | $0.2689 0.0000822 Eth | $953,481.00 3,435,751.500 CRV | 0.9514% |
20 | ![]() | CRV-USDT | $0.2689 0.0000823 Eth | $858,500.00 3,193,120.078 CRV | 0.8843% |
21 | ![]() | CRV-USDT | $0.2681 0.0000821 Eth | $728,032.00 2,715,146.400 CRV | 0.7519% |
22 | ![]() | CRV-USDT | $0.2694 0.0000824 Eth | $717,611.00 2,663,593.000 CRV | 0.7376% |
23 | ![]() | CRV-USDT | $0.2697 0.0000826 Eth | $631,187.00 2,340,694.250 CRV | 0.6482% |
24 | ![]() | CRV-XRP | $0.268 0.0000821 Eth | $603,865.00 2,252,941.040 CRV | 0.6239% |
25 | ![]() | CRV-USDT | $0.2709 0.0000829 Eth | $544,216.00 2,008,921.412 CRV | 0.5563% |
26 | ![]() | CRV-TRY | $0.2715 0.0000830 Eth | $451,173.00 1,661,483.750 CRV | 0.4601% |
27 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2682 0.0000819 Eth | $433,080.00 1,567,199.507 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.4340% |
28 | ![]() | CRV-TRY | $0.2694 0.0000823 Eth | $430,724.00 1,546,684.300 CRV | 0.4283% |
29 | ![]() | CRV-USDT | $0.2683 0.0000821 Eth | $424,868.00 1,583,541.300 CRV | 0.4385% |
30 | ![]() | CRV-USDT | $0.2688 0.0000823 Eth | $405,311.00 1,460,992.185 CRV | 0.4046% |
31 | ![]() | CRV-USDT | $0.2688 0.0000823 Eth | $388,453.00 1,402,020.182 CRV | 0.3883% |
32 | ![]() | CRV-USDT | $0.2697 0.0000824 Eth | $376,771.00 1,358,594.700 CRV | 0.3762% |
33 | ![]() | CRV-USDT | $0.269 0.0000822 Eth | $365,851.00 1,359,962.200 CRV | 0.3766% |
34 | ![]() | CRV-USDT | $0.2682 0.0000821 Eth | $358,540.00 1,337,038.700 CRV | 0.3703% |
35 | ![]() | CRV-USDC | $0.2692 0.0000824 Eth | $332,655.00 1,235,500.800 CRV | 0.3421% |
36 | ![]() | CRV-USDT | $0.2703 0.0000827 Eth | $290,705.00 1,044,585.500 CRV | 0.2893% |
37 | ![]() | CRV-THB | $0.2707 0.0000828 Eth | $277,524.00 1,025,133.567 CRV | 0.2839% |
38 | ![]() | CRV-USDT | $0.2696 0.0000825 Eth | $261,359.00 969,584.560 CRV | 0.2685% |
39 | ![]() | CRV-USDT | $0.2687 0.0000822 Eth | $240,727.00 867,520.400 CRV | 0.2402% |
40 | ![]() | CRV-EUR | $0.2703 0.0000827 Eth | $232,073.00 858,651.923 CRV | 0.2378% |
41 | ![]() | CRV-BTC | $0.2697 0.0000826 Eth | $204,651.00 746,809.900 CRV | 0.2068% |
42 | ![]() | CRV-USDT | $0.2687 0.0000822 Eth | $188,339.00 700,887.700 CRV | 0.1941% |
43 | ![]() | CRV-USDT | $0.2695 0.0000824 Eth | $187,082.00 674,044.600 CRV | 0.1867% |
44 | ![]() | CRV-USD | $0.269 0.0000823 Eth | $186,698.00 694,046.030 CRV | 0.1922% |
45 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.2681 0.0000819 Eth | $171,425.00 632,653.150 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.1752% |
46 | ![]() | CRV-USD | $0.269 0.0000823 Eth | $162,855.00 605,408.227 CRV | 0.1677% |
47 | ![]() | CRV-USDC | $0.2707 0.0000829 Eth | $144,677.00 518,312.990 CRV | 0.1435% |
48 | ![]() | CRV-USDT | $0.2696 0.0000825 Eth | $136,404.00 489,902.900 CRV | 0.1357% |
49 | ![]() | CRV-USDT | $0.2688 0.0000823 Eth | $130,274.00 469,096.425 CRV | 0.1299% |
50 | ![]() | CRV-USDT | $0.2697 0.0000825 Eth | $116,536.00 418,061.300 CRV | 0.1158% |
51 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.2675 0.0000818 Eth | $114,796.00 414,603.200 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1148% |
52 | ![]() | CRV-USDT | $0.2695 0.0000824 Eth | $107,012.00 397,108.270 CRV | 0.1100% |
53 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2688 0.0000821 Eth | $97,317.00 364,684.897 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.1010% |
54 | ![]() | CRV-USDC | $0.2688 0.0000822 Eth | $90,861.00 330,136.100 CRV | 0.0914% |
55 | ![]() | CRV-BTC | $0.2697 0.0000826 Eth | $60,912.00 223,115.920 CRV | 0.0618% |
56 | ![]() | CRV-EUR | $0.2686 0.0000822 Eth | $55,744.00 207,507.126 CRV | 0.0575% |
57 | ![]() | CRV-TRY | $0.2711 0.0000829 Eth | $54,759.00 201,995.270 CRV | 0.0559% |
58 | ![]() | CRV-USDT | $0.2697 0.0000825 Eth | $51,477.00 190,858.237 CRV | 0.0529% |
59 | ![]() | CRV-USDC | $0.2696 0.0000826 Eth | $50,307.00 183,058.116 CRV | 0.0507% |
60 | ![]() | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.2712 0.0000828 Eth | $47,288.00 173,444.103 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0480% |
61 | ![]() | CRV-USDT | $0.2687 0.0000822 Eth | $45,091.00 163,382.953 CRV | 0.0452% |
62 | ![]() | CRV-USD | $0.2674 0.0000819 Eth | $41,211.00 154,117.414 CRV | 0.0427% |
63 | ![]() | CRV-USDT | $0.2677 0.0000818 Eth | $38,211.00 142,734.367 CRV | 0.0395% |
64 | ![]() | CRV-EUR | $0.2699 0.0000826 Eth | $36,868.00 136,585.680 CRV | 0.0378% |
65 | ![]() | CRV-BTC | $0.2686 0.0000822 Eth | $33,746.00 125,625.400 CRV | 0.0348% |
66 | ![]() | CRV-GBP | $0.2687 0.0000823 Eth | $32,094.00 119,425.010 CRV | 0.0331% |
67 | ![]() | CRV-USDT | $0.2688 0.0000823 Eth | $31,810.00 118,360.548 CRV | 0.0328% |
68 | ![]() | CRV-USDT | $0.2692 0.0000824 Eth | $31,665.00 113,375.313 CRV | 0.0314% |
69 | ![]() | CRV-IDR | $0.2718 0.0000831 Eth | $31,188.00 114,731.781 CRV | 0.0318% |
70 | ![]() | CRV-TRY | $0.2703 0.0000826 Eth | $31,129.00 115,153.300 CRV | 0.0319% |
71 | ![]() | CRV-USD | $0.2697 0.0000825 Eth | $26,543.00 98,432.677 CRV | 0.0273% |
72 | ![]() | CRV-USDC | $0.2684 0.0000822 Eth | $25,585.00 91,797.546 CRV | 0.0254% |
73 | ![]() | CRV-BTC | $0.2698 0.0000825 Eth | $17,908.41 69,117.600 CRV | 0.0191% |
74 | ![]() | CRV-USDT | $0.2697 0.0000825 Eth | $16,350.36 60,623.401 CRV | 0.0168% |
75 | ![]() | CRV-USDT | $0.2688 0.0000823 Eth | $16,244.85 60,427.418 CRV | 0.0167% |
76 | ![]() | CRV-USD | $0.2696 0.0000825 Eth | $15,963.34 59,215.602 CRV | 0.0164% |
77 | ![]() | CRV-THB | $0.2698 0.0000825 Eth | $12,883.13 46,461.900 CRV | 0.0129% |
78 | ![]() | CRV-BTC | $0.2686 0.0000822 Eth | $10,731.38 39,951.000 CRV | 0.0111% |
79 | ![]() | CRV-ETH | $0.2685 0.0000822 Eth | $10,549.14 38,868.495 CRV | 0.0108% |
80 | ![]() | CRV-USDT | $0.2694 0.0000824 Eth | $10,490.63 38,944.004 CRV | 0.0108% |
81 | ![]() | CRV-BTC | $0.2685 0.0000822 Eth | $10,014.80 36,774.937 CRV | 0.0102% |
82 | ![]() | CRV-USDT | $0.2696 0.0000825 Eth | $9,456.49 35,075.487 CRV | 0.0097% |
83 | ![]() | CRV-BTC | $0.2685 0.0000822 Eth | $8,983.03 33,460.830 CRV | 0.0093% |
84 | ![]() | CRV-TRY | $0.271 0.0000830 Eth | $8,738.94 31,429.685 CRV | 0.0087% |
85 | ![]() | CRV-BTC | $0.2685 0.0000822 Eth | $7,061.18 25,884.579 CRV | 0.0072% |
86 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.269 0.0000824 Eth | $6,465.06 23,815.321 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0066% |
87 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.269 0.0000822 Eth | $5,969.55 21,957.162 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0061% |
88 | ![]() | 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $0.2699 0.0000823 Eth | $4,626.53 4,792.176 0XC52D7F23A2E460248DB6EE192CB23DD12BDDCBF6 | 0.0013% |
89 | ![]() | CRV-EUR | $0.269 0.0000823 Eth | $4,461.50 16,585.257 CRV | 0.0046% |
90 | ![]() | CRV-XBT | $0.2686 0.0000822 Eth | $3,748.06 13,953.373 CRV | 0.0039% |
91 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.2691 0.0000824 Eth | $3,650.65 13,374.813 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0037% |
92 | ![]() | CRV-USDT | $0.27 0.0000826 Eth | $2,865.23 10,271.102 CRV | 0.0028% |
93 | ![]() | CRV-BTC | $0.268 0.0000820 Eth | $2,670.33 9,963.700 CRV | 0.0028% |
94 | ![]() | CRV-USD | $0.2696 0.0000826 Eth | $2,234.32 8,286.934 CRV | 0.0023% |
95 | ![]() | CRV-USDT | $0.2693 0.0000824 Eth | $2,099.28 7,795.200 CRV | 0.0022% |
96 | ![]() | CRV-BTC | $0.2704 0.0000827 Eth | $1,026.66 3,785.200 CRV | 0.0010% |
97 | ![]() | CRV-BTC | $0.2706 0.0000827 Eth | $876.61 3,240.053 CRV | 0.0009% |
98 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.2702 0.0000826 Eth | $638.81 2,377.057 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0007% |
99 | ![]() | CRV-USDT | $0.267 0.0000817 Eth | $462.56 1,732.551 CRV | 0.0005% |
100 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.2693 0.0000823 Eth | $51.71 189.155 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
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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