Overview
Max Total Supply
2,160,168,248.614543184018850412 CRV
Holders
87,690 ( -0.007%)
Market
Price
$0.33 @ 0.000126 ETH (+7.53%)
Onchain Market Cap
$703,622,694.51
Circulating Supply Market Cap
$381,289,806.01
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.538649534126036337 CRVValue
$0.18 ( ~6.94247180544051E-05 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $0.3263 0.0001259 Eth | $39,950,148.00 126,561,394.500 CRV | 25.9071% |
2 | OKX | CRV-USDT | $0.3267 0.0001260 Eth | $13,446,117.00 42,468,654.562 CRV | 8.6933% |
3 | BloFin | CRV-USDT | $0.3266 0.0001260 Eth | $12,966,477.00 41,049,809.600 CRV | 8.4029% |
4 | HTX | CRV-USDT | $0.3264 0.0001259 Eth | $10,228,949.00 32,705,187.320 CRV | 6.6948% |
5 | Bybit | CRV-USDT | $0.3265 0.0001260 Eth | $8,395,695.00 26,522,144.880 CRV | 5.4291% |
6 | Gate.io | CRV-USDT | $0.3265 0.0001259 Eth | $8,281,104.00 25,972,075.140 CRV | 5.3165% |
7 | Websea | CRV-USDT | $0.3265 0.0001259 Eth | $5,931,662.00 0.000 CRV | 0.0000% |
8 | Bitunix | CRV-USDT | $0.3269 0.0001262 Eth | $5,492,066.00 16,798,094.400 CRV | 3.4386% |
9 | WhiteBIT | CRV-USDT | $0.3269 0.0001262 Eth | $4,980,876.00 15,236,385.799 CRV | 3.1189% |
10 | Coinbase Exchange | CRV-USD | $0.3263 0.0001259 Eth | $4,957,307.00 15,192,483.830 CRV | 3.1099% |
11 | Hotcoin | CRV-USDT | $0.3269 0.0001261 Eth | $3,371,599.00 10,315,327.700 CRV | 2.1115% |
12 | Biconomy.com | CRV-USDT | $0.3263 0.0001259 Eth | $3,294,571.00 10,492,941.900 CRV | 2.1479% |
13 | XT.COM | CRV-USDT | $0.327 0.0001262 Eth | $3,202,429.00 10,146,002.400 CRV | 2.0769% |
14 | KuCoin | CRV-USDT | $0.3264 0.0001259 Eth | $2,995,891.00 9,179,897.702 CRV | 1.8791% |
15 | Phemex | CRV-USDT | $0.327 0.0001262 Eth | $2,777,747.00 8,493,781.640 CRV | 1.7387% |
16 | LBank | CRV-USDT | $0.3265 0.0001260 Eth | $2,756,593.00 8,442,007.880 CRV | 1.7281% |
17 | Slex | CRV-USDT | $0.3268 0.0001261 Eth | $2,492,247.00 7,897,286.500 CRV | 1.6166% |
18 | DigiFinex | CRV-USDT | $0.3264 0.0001259 Eth | $2,471,289.00 7,570,267.800 CRV | 1.5496% |
19 | Kraken | CRV-USD | $0.327 0.0001262 Eth | $1,810,090.00 5,535,442.429 CRV | 1.1331% |
20 | Trubit | CRV-USDT | $0.3263 0.0001259 Eth | $1,784,654.00 5,748,827.700 CRV | 1.1768% |
21 | FameEX | CRV-USDT | $0.3268 0.0001262 Eth | $1,584,254.00 5,019,589.132 CRV | 1.0275% |
22 | Dex-Trade | CRV-USDT | $0.3267 0.0001260 Eth | $1,426,967.00 4,368,443.700 CRV | 0.8942% |
23 | BYDFi | CRV-USDT | $0.3266 0.0001260 Eth | $1,419,126.00 4,344,528.100 CRV | 0.8893% |
24 | CoinW | CRV-USDT | $0.327 0.0001262 Eth | $1,034,227.00 3,163,225.204 CRV | 0.6475% |
25 | FMFW.io | CRV-USDT | $0.3269 0.0001262 Eth | $953,251.00 2,915,829.700 CRV | 0.5969% |
26 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.3277 0.0001264 Eth | $844,705.00 2,730,354.362 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.5589% |
27 | MEXC | CRV-USDT | $0.3263 0.0001259 Eth | $776,934.00 2,381,183.811 CRV | 0.4874% |
28 | Binance | CRV-BTC | $0.3273 0.0001263 Eth | $736,817.00 2,335,136.400 CRV | 0.4780% |
29 | Toobit | CRV-USDT | $0.3265 0.0001259 Eth | $730,149.00 2,318,056.100 CRV | 0.4745% |
30 | CoinCatch | CRV-USDT | $0.3265 0.0001260 Eth | $688,842.00 2,203,000.851 CRV | 0.4510% |
31 | PointPay | CRV-USDT | $0.3267 0.0001261 Eth | $666,520.00 2,110,219.719 CRV | 0.4320% |
32 | Bitkub | CRV-THB | $0.3278 0.0001265 Eth | $519,850.00 1,586,100.374 CRV | 0.3247% |
33 | Coinstore | CRV-USDT | $0.326 0.0001258 Eth | $496,646.00 1,578,920.800 CRV | 0.3232% |
34 | Binance | CRV-TRY | $0.3268 0.0001261 Eth | $476,951.00 1,492,384.300 CRV | 0.3055% |
35 | BingX | CRV-USDT | $0.3264 0.0001259 Eth | $463,501.00 1,465,597.820 CRV | 0.3000% |
36 | BitMart | CRV-USDT | $0.3269 0.0001261 Eth | $447,754.00 1,369,498.220 CRV | 0.2803% |
37 | Paribu | CRV-TRY | $0.3251 0.0001255 Eth | $431,074.00 1,325,810.250 CRV | 0.2714% |
38 | Binance | CRV-USDC | $0.3264 0.0001261 Eth | $376,559.00 1,194,148.700 CRV | 0.2444% |
39 | AscendEX (BitMax) | CRV-USDT | $0.3276 0.0001264 Eth | $370,788.00 1,131,976.900 CRV | 0.2317% |
40 | Tapbit | CRV-USDT | $0.3263 0.0001259 Eth | $352,163.00 1,115,277.200 CRV | 0.2283% |
41 | P2B | CRV-USDT | $0.3261 0.0001258 Eth | $336,451.00 1,031,888.800 CRV | 0.2112% |
42 | P2B | CRV-USD | $0.326 0.0001258 Eth | $326,483.00 1,001,482.800 CRV | 0.2050% |
43 | Bitazza | CRV-USDT | $0.3259 0.0001257 Eth | $310,173.00 991,454.100 CRV | 0.2030% |
44 | LocalTrade | CRV-USDT | $0.3268 0.0001261 Eth | $277,372.00 848,732.878 CRV | 0.1737% |
45 | WhiteBIT | CRV-TRY | $0.3259 0.0001258 Eth | $274,620.00 842,628.700 CRV | 0.1725% |
46 | Gemini | CRV-USD | $0.3267 0.0001260 Eth | $269,303.00 824,313.201 CRV | 0.1687% |
47 | BTSE | CRV-USDT | $0.3268 0.0001261 Eth | $254,713.00 779,457.607 CRV | 0.1596% |
48 | Bitget | CRV-USDT | $0.3266 0.0001260 Eth | $251,672.00 802,412.041 CRV | 0.1643% |
49 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3268 0.0001261 Eth | $249,739.00 777,535.737 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.1592% |
50 | WhiteBIT | CRV-BTC | $0.3268 0.0001261 Eth | $196,587.00 601,576.000 CRV | 0.1231% |
51 | Bitvavo | CRV-EUR | $0.3249 0.0001254 Eth | $183,896.00 566,064.261 CRV | 0.1159% |
52 | Nominex | CRV-USDT | $0.3272 0.0001260 Eth | $179,629.00 548,937.371 CRV | 0.1124% |
53 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.3241 0.0001250 Eth | $173,656.00 564,323.600 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.1155% |
54 | BitDelta | CRV-USDT | $0.3266 0.0001260 Eth | $166,479.00 532,009.800 CRV | 0.1089% |
55 | Bitget | CRV-USDC | $0.327 0.0001261 Eth | $163,867.00 524,482.500 CRV | 0.1074% |
56 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.328 0.0001265 Eth | $143,088.00 447,448.103 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0916% |
57 | Coinbase Exchange | CRV-EUR | $0.3269 0.0001261 Eth | $128,151.00 392,030.860 CRV | 0.0802% |
58 | CoinEx | CRV-USDT | $0.3271 0.0001263 Eth | $104,856.00 350,678.630 CRV | 0.0718% |
59 | Icrypex | CRV-TRY | $0.3269 0.0001262 Eth | $86,208.00 263,727.766 CRV | 0.0540% |
60 | WOO X | CRV-USDT | $0.3265 0.0001260 Eth | $74,871.00 229,281.329 CRV | 0.0469% |
61 | WEEX | CRV-USDT | $0.3254 0.0001256 Eth | $71,832.00 230,064.100 CRV | 0.0471% |
62 | XT.COM | CRV-BTC | $0.3273 0.0001263 Eth | $71,279.00 238,560.600 CRV | 0.0488% |
63 | OKX | CRV-USDC | $0.3265 0.0001259 Eth | $68,166.00 215,287.911 CRV | 0.0441% |
64 | LATOKEN | CRV-BTC | $0.3261 0.0001258 Eth | $62,723.00 192,358.822 CRV | 0.0394% |
65 | BigONE | CRV-USDT | $0.3261 0.0001258 Eth | $58,349.00 178,954.788 CRV | 0.0366% |
66 | Coinbase Exchange | CRV-BTC | $0.3267 0.0001260 Eth | $49,195.00 150,589.890 CRV | 0.0308% |
67 | Deepcoin | CRV-USDT | $0.326 0.0001258 Eth | $48,811.00 161,817.400 CRV | 0.0331% |
68 | Dex-Trade | CRV-BTC | $0.3261 0.0001258 Eth | $48,321.00 148,179.000 CRV | 0.0303% |
69 | Upbit | CRV-BTC | $0.3249 0.0001253 Eth | $42,982.00 132,292.143 CRV | 0.0271% |
70 | Bitstamp | CRV-USD | $0.3247 0.0001253 Eth | $42,705.00 131,533.703 CRV | 0.0269% |
71 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $0.3273 0.0001263 Eth | $42,172.00 134,683.627 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0276% |
72 | LATOKEN | CRV-USDT | $0.3276 0.0001264 Eth | $41,045.00 125,307.364 CRV | 0.0257% |
73 | Bitfinex | CRV-USDT | $0.3257 0.0001256 Eth | $40,481.00 124,293.870 CRV | 0.0254% |
74 | Bitso | CRV-USD | $0.3253 0.0001255 Eth | $40,236.00 123,692.659 CRV | 0.0253% |
75 | Bitget | CRV-BTC | $0.3273 0.0001263 Eth | $35,626.00 114,944.172 CRV | 0.0235% |
76 | Indodax | CRV-IDR | $0.3256 0.0001256 Eth | $34,193.00 105,028.329 CRV | 0.0215% |
77 | Bitfinex | CRV-USD | $0.3268 0.0001261 Eth | $34,191.00 104,639.594 CRV | 0.0214% |
78 | Bitazza | CRV-THB | $0.3246 0.0001252 Eth | $31,890.00 98,315.100 CRV | 0.0201% |
79 | Uniswap V2 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.3256 0.0001256 Eth | $17,465.66 55,414.502 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0113% |
80 | Bitlo | CRV-TRY | $0.3274 0.0001263 Eth | $16,697.83 53,409.682 CRV | 0.0109% |
81 | TokoCrypto | CRV-USDT | $0.327 0.0001262 Eth | $13,615.16 41,630.746 CRV | 0.0085% |
82 | P2B | CRV-BTC | $0.3273 0.0001263 Eth | $13,450.75 41,097.900 CRV | 0.0084% |
83 | Azbit | CRV-USDT | $0.3257 0.0001257 Eth | $13,396.53 42,930.038 CRV | 0.0088% |
84 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3272 0.0001263 Eth | $12,232.36 39,948.525 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0082% |
85 | OKX | CRV-EUR | $0.3248 0.0001253 Eth | $8,696.67 27,759.465 CRV | 0.0057% |
86 | Gate.io | CRV-ETH | $0.3264 0.0001259 Eth | $8,404.98 26,656.240 CRV | 0.0055% |
87 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3259 0.0001255 Eth | $6,618.90 21,085.262 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0043% |
88 | HashKey Global | CRV-USDT | $0.3265 0.0001260 Eth | $5,928.06 19,151.200 CRV | 0.0039% |
89 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $0.3264 0.0001259 Eth | $4,200.45 1,768.266 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0004% |
90 | Nonkyc.io | CRV-USDT | $0.3253 0.0001255 Eth | $3,639.37 11,697.366 CRV | 0.0024% |
91 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.3242 0.0001251 Eth | $2,365.23 7,503.874 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0015% |
92 | Binance US | CRV-USDT | $0.324 0.0001250 Eth | $2,291.42 7,072.681 CRV | 0.0014% |
93 | Nonkyc.io | CRV-BTC | $0.3249 0.0001254 Eth | $1,205.71 3,862.927 CRV | 0.0008% |
94 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $0.3262 0.0001256 Eth | $1,178.50 3,676.802 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0008% |
95 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | $0.3254 0.0001256 Eth | $664.81 2,102.182 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0004% |
96 | Sushiswap (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.327 0.0001262 Eth | $642.16 2,019.654 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0004% |
97 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $0.3277 0.0001264 Eth | $348.35 1,089.080 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0002% |
98 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $0.327 0.0001262 Eth | $177.11 563.590 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
99 | CEX.IO | CRV-USDT | $0.327 0.0001262 Eth | $127.67 399.701 CRV | 0.0001% |
100 | Gravity Finance | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $0.3251 0.0001254 Eth | $114.76 363.698 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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