Overview
Max Total Supply
2,162,361,843.668676267273125186 CRV
Holders
87,779 ( 0.006%)
Market
Price
$0.32 @ 0.000118 ETH (-3.46%)
Onchain Market Cap
$688,319,705.42
Circulating Supply Market Cap
$371,826,192.21
Other Info
Token Contract (WITH 18 Decimals)
Balance
609.359565 CRVValue
$193.97 ( ~0.0719437483174402 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | CRV-USDT | $0.3178 0.0001180 Eth | $33,000,980.00 103,350,924.300 CRV | 29.0802% |
2 | ![]() | CRV-USDT | $0.3177 0.0001178 Eth | $12,763,343.00 39,973,727.100 CRV | 11.2476% |
3 | ![]() | CRV-USDT | $0.3175 0.0001178 Eth | $7,656,901.00 24,198,282.013 CRV | 6.8088% |
4 | ![]() | CRV-USDT | $0.3175 0.0001178 Eth | $6,263,083.00 19,648,554.661 CRV | 5.5286% |
5 | ![]() | CRV-USDT | $0.3178 0.0001179 Eth | $4,970,763.00 15,593,111.160 CRV | 4.3875% |
6 | ![]() | CRV-USDT | $0.3177 0.0001179 Eth | $4,762,483.00 0.000 CRV | 0.0000% |
7 | ![]() | CRV-USDT | $0.3179 0.0001180 Eth | $4,028,254.00 12,667,077.400 CRV | 3.5642% |
8 | ![]() | CRV-USDT | $0.3179 0.0001179 Eth | $3,991,165.00 12,509,792.170 CRV | 3.5199% |
9 | ![]() | CRV-USDT | $0.3173 0.0001177 Eth | $3,222,945.00 10,157,033.253 CRV | 2.8579% |
10 | ![]() | CRV-USD | $0.317 0.0001176 Eth | $3,113,623.00 9,822,155.320 CRV | 2.7637% |
11 | ![]() | CRV-USDT | $0.3179 0.0001179 Eth | $2,646,949.00 8,270,261.400 CRV | 2.3270% |
12 | ![]() | CRV-USDT | $0.3179 0.0001180 Eth | $2,646,884.00 8,289,049.300 CRV | 2.3323% |
13 | ![]() | CRV-USDT | $0.3183 0.0001181 Eth | $2,376,743.00 7,466,774.950 CRV | 2.1010% |
14 | ![]() | CRV-USDT | $0.3177 0.0001178 Eth | $2,281,309.00 7,180,436.500 CRV | 2.0204% |
15 | ![]() | CRV-USDT | $0.3179 0.0001180 Eth | $2,172,366.00 6,802,063.300 CRV | 1.9139% |
16 | ![]() | CRV-USDT | $0.3179 0.0001179 Eth | $1,948,106.00 6,128,169.300 CRV | 1.7243% |
17 | ![]() | CRV-USDT | $0.3177 0.0001178 Eth | $1,877,723.00 5,910,120.946 CRV | 1.6630% |
18 | ![]() | CRV-USDT | $0.3176 0.0001178 Eth | $1,803,156.00 5,676,599.400 CRV | 1.5972% |
19 | ![]() | CRV-USDT | $0.3177 0.0001179 Eth | $1,307,389.00 4,095,322.076 CRV | 1.1523% |
20 | ![]() | CRV-USDT | $0.3175 0.0001178 Eth | $1,200,375.00 3,780,466.200 CRV | 1.0637% |
21 | ![]() | CRV-EUR | $0.3184 0.0001181 Eth | $1,191,673.00 3,742,800.983 CRV | 1.0531% |
22 | ![]() | CRV-USDT | $0.3179 0.0001178 Eth | $1,138,951.00 3,582,357.600 CRV | 1.0080% |
23 | ![]() | CRV-USDT | $0.3175 0.0001178 Eth | $772,391.00 2,444,825.570 CRV | 0.6879% |
24 | ![]() | CRV-USDT | $0.3177 0.0001178 Eth | $682,562.00 2,148,731.800 CRV | 0.6046% |
25 | ![]() | CRV-USDT | $0.3178 0.0001179 Eth | $676,713.00 2,115,190.053 CRV | 0.5952% |
26 | ![]() | CRV-USDT | $0.3181 0.0001181 Eth | $657,163.00 2,065,754.557 CRV | 0.5812% |
27 | ![]() | CRV-USDT | $0.3179 0.0001179 Eth | $606,301.00 1,907,243.559 CRV | 0.5366% |
28 | ![]() | CRV-USDT | $0.3179 0.0001180 Eth | $535,793.00 1,679,698.359 CRV | 0.4726% |
29 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.3167 0.0001174 Eth | $503,194.00 1,581,416.524 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.4450% |
30 | ![]() | CRV-BTC | $0.3174 0.0001177 Eth | $501,350.00 1,574,949.500 CRV | 0.4431% |
31 | ![]() | CRV-USDT | $0.3177 0.0001178 Eth | $456,539.00 1,429,946.610 CRV | 0.4023% |
32 | ![]() | CRV-USD | $0.318 0.0001179 Eth | $424,541.00 1,335,034.053 CRV | 0.3756% |
33 | ![]() | CRV-USDC | $0.3179 0.0001179 Eth | $360,326.00 1,122,135.700 CRV | 0.3157% |
34 | ![]() | CRV-USDT | $0.3179 0.0001179 Eth | $358,082.00 1,126,420.520 CRV | 0.3169% |
35 | ![]() | CRV-THB | $0.3179 0.0001179 Eth | $342,034.00 1,075,836.497 CRV | 0.3027% |
36 | ![]() | CRV-USDT | $0.3184 0.0001181 Eth | $329,053.00 1,030,445.500 CRV | 0.2899% |
37 | ![]() | CRV-USDT | $0.3169 0.0001175 Eth | $313,329.00 981,173.600 CRV | 0.2761% |
38 | ![]() | CRV-USDT | $0.3191 0.0001184 Eth | $293,966.00 919,157.600 CRV | 0.2586% |
39 | ![]() | CRV-USDT | $0.3177 0.0001178 Eth | $286,774.00 899,082.100 CRV | 0.2530% |
40 | ![]() | CRV-USDT | $0.317 0.0001176 Eth | $268,826.00 847,966.300 CRV | 0.2386% |
41 | ![]() | CRV-USD | $0.317 0.0001176 Eth | $257,688.00 812,896.140 CRV | 0.2287% |
42 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3186 0.0001182 Eth | $231,599.00 727,985.645 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.2048% |
43 | ![]() | CRV-USDT | $0.3178 0.0001179 Eth | $225,068.00 708,149.889 CRV | 0.1993% |
44 | ![]() | CRV-USDT | $0.3187 0.0001182 Eth | $221,558.00 695,166.400 CRV | 0.1956% |
45 | ![]() | CRV-USDC | $0.3181 0.0001180 Eth | $152,507.00 476,189.430 CRV | 0.1340% |
46 | ![]() | CRV-BTC | $0.3181 0.0001180 Eth | $147,809.00 464,646.800 CRV | 0.1307% |
47 | ![]() | CRV-USDT | $0.3178 0.0001179 Eth | $138,251.00 432,380.500 CRV | 0.1217% |
48 | ![]() | CRV-TRY | $0.3186 0.0001182 Eth | $136,406.00 428,168.200 CRV | 0.1205% |
49 | ![]() | CRV-USDT | $0.3184 0.0001181 Eth | $121,877.00 382,755.053 CRV | 0.1077% |
50 | ![]() | CRV-USD | $0.318 0.0001179 Eth | $115,260.00 362,453.697 CRV | 0.1020% |
51 | ![]() | CRV-USDT | $0.3172 0.0001176 Eth | $114,276.00 357,948.624 CRV | 0.1007% |
52 | ![]() | CRV-USDC | $0.3175 0.0001178 Eth | $105,319.00 335,146.605 CRV | 0.0943% |
53 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XFCC5C47BE19D06BF83EB04298B026F81069FF65B | $0.3192 0.0001184 Eth | $93,127.00 291,621.514 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0821% |
54 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3174 0.0001177 Eth | $92,677.00 290,546.017 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0818% |
55 | ![]() | CRV-EUR | $0.3182 0.0001180 Eth | $89,736.00 281,991.502 CRV | 0.0793% |
56 | ![]() | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $0.3189 0.0001184 Eth | $86,619.00 148,248.844 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0417% |
57 | ![]() | CRV-TRY | $0.318 0.0001179 Eth | $80,407.00 252,857.580 CRV | 0.0711% |
58 | ![]() | CRV-TRY | $0.3193 0.0001185 Eth | $72,741.00 227,781.096 CRV | 0.0641% |
59 | ![]() | CRV-TRY | $0.318 0.0001179 Eth | $65,092.00 200,801.900 CRV | 0.0565% |
60 | ![]() | CRV-USDT | $0.319 0.0001184 Eth | $53,093.00 166,421.548 CRV | 0.0468% |
61 | ![]() | CRV-USDT | $0.3179 0.0001179 Eth | $50,492.00 157,743.000 CRV | 0.0444% |
62 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3182 0.0001180 Eth | $50,050.00 156,618.376 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0441% |
63 | ![]() | CRV-EUR | $0.3177 0.0001178 Eth | $50,002.00 157,403.500 CRV | 0.0443% |
64 | ![]() | CRV-USDT | $0.317 0.0001177 Eth | $49,912.00 162,551.400 CRV | 0.0457% |
65 | ![]() | CRV-BTC | $0.318 0.0001180 Eth | $46,160.00 145,148.000 CRV | 0.0408% |
66 | ![]() | CRV-BTC | $0.3179 0.0001180 Eth | $44,155.00 158,132.800 CRV | 0.0445% |
67 | ![]() | CRV-BTC | $0.3187 0.0001182 Eth | $44,145.00 138,523.589 CRV | 0.0390% |
68 | ![]() | CRV-BTC | $0.3174 0.0001177 Eth | $38,002.00 119,450.539 CRV | 0.0336% |
69 | ![]() | CRV-USDT | $0.3181 0.0001180 Eth | $34,670.00 108,974.422 CRV | 0.0307% |
70 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.3192 0.0001184 Eth | $33,775.00 105,717.503 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0297% |
71 | ![]() | CRV-USDT | $0.3178 0.0001179 Eth | $28,225.00 88,419.400 CRV | 0.0249% |
72 | ![]() | CRV-USD | $0.317 0.0001176 Eth | $26,621.00 83,966.015 CRV | 0.0236% |
73 | ![]() | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.3164 0.0001174 Eth | $24,033.00 75,660.821 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0213% |
74 | ![]() | CRV-USDT | $0.3176 0.0001178 Eth | $19,478.37 61,327.620 CRV | 0.0173% |
75 | ![]() | CRV-USDT | $0.318 0.0001179 Eth | $19,432.72 61,110.848 CRV | 0.0172% |
76 | ![]() | CRV-GBP | $0.3175 0.0001177 Eth | $17,018.06 53,607.470 CRV | 0.0151% |
77 | ![]() | CRV-TRY | $0.3189 0.0001183 Eth | $16,963.34 52,711.830 CRV | 0.0148% |
78 | ![]() | CRV-THB | $0.3196 0.0001186 Eth | $16,388.90 50,377.700 CRV | 0.0142% |
79 | ![]() | CRV-USD | $0.3183 0.0001181 Eth | $14,885.29 46,762.045 CRV | 0.0132% |
80 | ![]() | CRV-IDR | $0.3176 0.0001178 Eth | $12,631.75 39,774.034 CRV | 0.0112% |
81 | ![]() | CRV-ETH | $0.3178 0.0001179 Eth | $8,353.79 26,285.268 CRV | 0.0074% |
82 | ![]() | CRV-BTC | $0.3179 0.0001180 Eth | $7,225.74 22,727.500 CRV | 0.0064% |
83 | ![]() | CRV-USDT | $0.3179 0.0001180 Eth | $7,046.16 22,162.972 CRV | 0.0062% |
84 | ![]() | CRV-USDT | $0.3183 0.0001181 Eth | $5,658.72 17,779.220 CRV | 0.0050% |
85 | ![]() | CRV-USDT | $0.3179 0.0001179 Eth | $5,553.74 17,253.235 CRV | 0.0049% |
86 | ![]() | CRV-EUR | $0.3191 0.0001185 Eth | $5,276.47 16,536.508 CRV | 0.0047% |
87 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3178 0.0001179 Eth | $4,679.84 14,613.719 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0041% |
88 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3168 0.0001176 Eth | $4,329.92 13,613.740 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0038% |
89 | ![]() | CRV-USDT | $0.3176 0.0001179 Eth | $2,941.13 9,200.700 CRV | 0.0026% |
90 | ![]() | 0XD533A949740BB3306D119CC777FA900BA034CD52-0X62B9C7356A2DC64A1969E19C23E4F579F9810AA7 | $0.3185 0.0001182 Eth | $2,832.44 8,911.810 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0025% |
91 | ![]() | CRV-USD | $0.3166 0.0001174 Eth | $2,651.00 8,374.148 CRV | 0.0024% |
92 | ![]() | CRV-ETH | $0.3184 0.0001181 Eth | $1,818.90 5,718.910 CRV | 0.0016% |
93 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3161 0.0001172 Eth | $1,689.71 5,330.015 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0015% |
94 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3182 0.0001180 Eth | $1,272.95 3,989.706 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0011% |
95 | ![]() | CRV-BTC | $0.3155 0.0001170 Eth | $1,243.17 3,916.347 CRV | 0.0011% |
96 | ![]() | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.3163 0.0001175 Eth | $796.87 2,502.575 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0007% |
97 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.32 0.0001187 Eth | $343.23 1,060.502 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0003% |
98 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.3172 0.0001177 Eth | $264.86 831.005 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0002% |
99 | ![]() | CRV-USDT | $0.318 0.0001180 Eth | $48.84 152.093 CRV | 0.0000% |
100 | ![]() | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $0.3183 0.0001182 Eth | $12.22 38.130 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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