Overview
Max Total Supply
2,201,859,073.612390263718316501 CRV
Holders
88,628 ( 0.024%)
Market
Price
$1.15 @ 0.000312 ETH (+6.10%)
Onchain Market Cap
$2,540,211,152.40
Circulating Supply Market Cap
$1,442,379,877.94
Other Info
Token Contract (WITH 18 Decimals)
Balance
933.92503260428383886 CRVValue
$1,077.44 ( ~0.291113824257364 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | CRV-USDT | $1.15 0.0003116 Eth | $234,132,502.00 214,135,799.500 CRV | 24.6444% |
2 | Websea | CRV-USDT | $1.16 0.0003127 Eth | $123,501,130.00 0.000 CRV | 0.0000% |
3 | WhiteBIT | CRV-USDT | $1.15 0.0003113 Eth | $121,140,874.00 105,004,920.867 CRV | 12.0848% |
4 | OKX | CRV-USDT | $1.15 0.0003110 Eth | $72,372,585.00 66,445,239.659 CRV | 7.6470% |
5 | Gate.io | CRV-USDT | $1.15 0.0003114 Eth | $55,705,551.00 50,053,536.660 CRV | 5.7605% |
6 | Coinbase Exchange | CRV-USD | $1.15 0.0003103 Eth | $42,205,725.00 36,681,492.650 CRV | 4.2216% |
7 | Bitget | CRV-USDT | $1.15 0.0003110 Eth | $37,024,597.00 34,023,290.241 CRV | 3.9157% |
8 | Bybit | CRV-USDT | $1.15 0.0003109 Eth | $36,148,071.00 33,639,144.340 CRV | 3.8714% |
9 | HTX | CRV-USDT | $1.15 0.0003112 Eth | $35,296,209.00 32,140,708.373 CRV | 3.6990% |
10 | Bitunix | CRV-USDT | $1.16 0.0003120 Eth | $33,800,198.00 29,237,179.200 CRV | 3.3648% |
11 | MEXC | CRV-USDT | $1.16 0.0003120 Eth | $24,603,611.00 21,288,349.944 CRV | 2.4500% |
12 | XT.COM | CRV-USDT | $1.15 0.0003113 Eth | $18,640,978.00 17,062,452.100 CRV | 1.9637% |
13 | Slex | CRV-USDT | $1.16 0.0003120 Eth | $17,522,821.00 15,782,936.900 CRV | 1.8164% |
14 | Kraken | CRV-USD | $1.15 0.0003113 Eth | $15,310,859.00 13,279,149.173 CRV | 1.5283% |
15 | Niza Global | CRV-USD | $1.16 0.0003139 Eth | $14,211,157.00 13,260,635.161 CRV | 1.5261% |
16 | DigiFinex | CRV-USDT | $1.15 0.0003113 Eth | $13,732,829.00 11,906,503.000 CRV | 1.3703% |
17 | LBank | CRV-USDT | $1.16 0.0003140 Eth | $11,054,367.00 9,510,984.620 CRV | 1.0946% |
18 | KuCoin | CRV-USDT | $1.15 0.0003116 Eth | $10,831,236.00 9,386,091.824 CRV | 1.0802% |
19 | BYDFi | CRV-USDT | $1.16 0.0003113 Eth | $9,630,776.00 8,333,583.400 CRV | 0.9591% |
20 | FameEX | CRV-USDT | $1.15 0.0003113 Eth | $9,363,960.00 8,565,732.081 CRV | 0.9858% |
21 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.15 0.0003100 Eth | $8,869,462.00 8,251,455.794 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.9496% |
22 | WhiteBIT | CRV-BTC | $1.16 0.0003117 Eth | $7,751,163.00 6,707,023.500 CRV | 0.7719% |
23 | Dex-Trade | CRV-USDT | $1.15 0.0003113 Eth | $6,876,415.00 5,961,794.315 CRV | 0.6861% |
24 | Bitvavo | CRV-EUR | $1.15 0.0003112 Eth | $6,809,851.00 5,922,606.195 CRV | 0.6816% |
25 | Biconomy.com | CRV-USDT | $1.16 0.0003116 Eth | $6,643,954.00 6,053,878.100 CRV | 0.6967% |
26 | Bithumb | CRV-KRW | $1.15 0.0003110 Eth | $5,990,117.00 5,198,933.339 CRV | 0.5983% |
27 | Coinstore | CRV-USDT | $1.15 0.0003109 Eth | $5,793,009.00 5,275,624.800 CRV | 0.6072% |
28 | FMFW.io | CRV-USDT | $1.16 0.0003110 Eth | $5,141,473.00 4,437,314.800 CRV | 0.5107% |
29 | Bitkub | CRV-THB | $1.16 0.0003125 Eth | $4,720,658.00 4,078,301.394 CRV | 0.4694% |
30 | HitBTC | CRV-USDT | $1.15 0.0003107 Eth | $4,690,668.00 4,265,749.600 CRV | 0.4909% |
31 | Toobit | CRV-USDT | $1.16 0.0003119 Eth | $4,594,115.00 4,182,769.700 CRV | 0.4814% |
32 | BTSE | CRV-USDT | $1.15 0.0003118 Eth | $4,403,057.00 3,813,691.658 CRV | 0.4389% |
33 | Hibt | CRV-USDT | $1.16 0.0003120 Eth | $4,338,061.00 3,983,271.665 CRV | 0.4584% |
34 | BingX | CRV-USDT | $1.15 0.0003115 Eth | $4,331,969.00 3,972,161.108 CRV | 0.4571% |
35 | Binance | CRV-BTC | $1.16 0.0003128 Eth | $4,328,474.00 3,958,616.600 CRV | 0.4556% |
36 | Luno | CRV-MYR | $1.16 0.0003128 Eth | $4,272,803.00 3,688,534.900 CRV | 0.4245% |
37 | Trubit | CRV-USDT | $1.16 0.0003136 Eth | $4,266,486.00 3,953,895.700 CRV | 0.4550% |
38 | Ourbit | CRV-USDT | $1.15 0.0003112 Eth | $4,050,339.00 3,707,056.570 CRV | 0.4266% |
39 | Bullish | CRV-USDC | $1.16 0.0003118 Eth | $3,864,871.00 3,552,144.870 CRV | 0.4088% |
40 | Currency.com | CRV-USD | $1.15 0.0003110 Eth | $3,862,646.00 3,348,341.021 CRV | 0.3854% |
41 | PointPay | CRV-USDT | $1.13 0.0003077 Eth | $3,853,879.00 3,528,427.176 CRV | 0.4061% |
42 | Phemex | CRV-USDT | $1.16 0.0003133 Eth | $3,825,759.00 3,295,645.130 CRV | 0.3793% |
43 | Binance | CRV-TRY | $1.16 0.0003136 Eth | $3,816,387.00 3,369,779.900 CRV | 0.3878% |
44 | Binance | CRV-USDC | $1.15 0.0003109 Eth | $3,538,630.00 3,266,725.100 CRV | 0.3760% |
45 | Uniswap V3 (Ethereum) | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.15 0.0003097 Eth | $3,126,429.00 2,948,452.651 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.3393% |
46 | Icrypex | CRV-USDT | $1.16 0.0003122 Eth | $2,680,452.00 2,315,522.704 CRV | 0.2665% |
47 | Hotcoin | CRV-USDT | $1.16 0.0003120 Eth | $2,527,484.00 2,186,463.444 CRV | 0.2516% |
48 | CoinEx | CRV-USDT | $1.15 0.0003114 Eth | $2,405,846.00 2,166,819.134 CRV | 0.2494% |
49 | BitMart | CRV-USDT | $1.15 0.0003104 Eth | $2,393,019.00 2,081,310.580 CRV | 0.2395% |
50 | Kraken | CRV-EUR | $1.16 0.0003133 Eth | $2,360,059.00 2,034,036.856 CRV | 0.2341% |
51 | WhiteBIT | CRV-TRY | $1.16 0.0003142 Eth | $1,794,541.00 1,540,630.000 CRV | 0.1773% |
52 | WEEX | CRV-USDT | $1.15 0.0003111 Eth | $1,502,982.00 1,311,946.080 CRV | 0.1510% |
53 | Coinbase Exchange | CRV-EUR | $1.16 0.0003120 Eth | $1,486,932.00 1,285,215.260 CRV | 0.1479% |
54 | P2B | CRV-USD | $1.16 0.0003115 Eth | $1,326,114.00 1,148,150.650 CRV | 0.1321% |
55 | OKX | CRV-USDC | $1.16 0.0003132 Eth | $1,027,259.00 966,122.080 CRV | 0.1112% |
56 | BitDelta | CRV-USDT | $1.15 0.0003109 Eth | $988,435.00 904,117.400 CRV | 0.1041% |
57 | Nonkyc.io | CRV-USDT | $1.15 0.0003113 Eth | $916,220.00 836,899.463 CRV | 0.0963% |
58 | LATOKEN | CRV-BTC | $1.13 0.0003079 Eth | $846,265.00 746,777.522 CRV | 0.0859% |
59 | BloFin | CRV-USDT | $1.16 0.0003143 Eth | $820,543.00 752,084.400 CRV | 0.0866% |
60 | Pionex | CRV-USDT | $1.16 0.0003116 Eth | $802,829.00 739,464.306 CRV | 0.0851% |
61 | Curve (Arbitrum) | 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.15 0.0003103 Eth | $754,817.00 725,238.898 0X498BF2B1E120FED3AD3D42EA2165E9B73F99C1E5 | 0.0835% |
62 | Upbit | CRV-BTC | $1.16 0.0003123 Eth | $744,396.00 643,389.668 CRV | 0.0740% |
63 | Gemini | CRV-USD | $1.15 0.0003115 Eth | $724,018.00 627,344.386 CRV | 0.0722% |
64 | Coinbase Exchange | CRV-GBP | $1.16 0.0003123 Eth | $651,478.00 562,699.090 CRV | 0.0648% |
65 | Uniswap V3 (Ethereum) | 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52 | $1.16 0.0003135 Eth | $650,326.00 102,023.766 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B | 0.0117% |
66 | Tapbit | CRV-USDT | $1.15 0.0003119 Eth | $508,325.00 465,861.800 CRV | 0.0536% |
67 | Curve (Arbitrum) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | $1.15 0.0003101 Eth | $504,676.00 492,850.130 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0567% |
68 | Quickswap (v3) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.15 0.0003105 Eth | $441,455.00 415,824.313 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0479% |
69 | Bitazza | CRV-USDT | $1.15 0.0003112 Eth | $417,305.00 377,713.400 CRV | 0.0435% |
70 | WEEX | CRV-USDC | $1.15 0.0003117 Eth | $402,618.00 364,098.000 CRV | 0.0419% |
71 | AscendEX (BitMax) | CRV-USDT | $1.16 0.0003125 Eth | $377,787.00 326,390.800 CRV | 0.0376% |
72 | BVOX | CRV-USDT | $1.16 0.0003123 Eth | $348,669.00 315,329.700 CRV | 0.0363% |
73 | BigONE | CRV-USDT | $1.16 0.0003119 Eth | $327,264.00 283,195.345 CRV | 0.0326% |
74 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.15 0.0003104 Eth | $297,492.00 281,436.208 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0324% |
75 | KickEX | CRV-USDT | $1.15 0.0003113 Eth | $259,299.00 224,634.496 CRV | 0.0259% |
76 | DeGate | 0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.15 0.0003110 Eth | $245,338.00 224,370.079 0XD533A949740BB3306D119CC777FA900BA034CD52 | 0.0258% |
77 | Curve (Optimism) | 0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | $1.14 0.0003067 Eth | $223,345.00 94,991.534 0X4200000000000000000000000000000000000042 | 0.0109% |
78 | LATOKEN | CRV-USDT | $1.14 0.0003103 Eth | $221,265.00 193,617.801 CRV | 0.0223% |
79 | TokoCrypto | CRV-USDT | $1.16 0.0003120 Eth | $176,368.00 152,668.123 CRV | 0.0176% |
80 | Uniswap V3 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.15 0.0003107 Eth | $126,289.00 116,644.295 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0134% |
81 | Dex-Trade | CRV-BTC | $1.15 0.0003121 Eth | $116,673.00 101,351.370 CRV | 0.0117% |
82 | Binance US | CRV-USDT | $1.14 0.0003094 Eth | $65,489.00 57,560.862 CRV | 0.0066% |
83 | Sushiswap (Polygon POS) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.16 0.0003127 Eth | $63,014.00 59,326.661 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0068% |
84 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.15 0.0003103 Eth | $57,696.00 55,294.570 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0064% |
85 | PancakeSwap V3 (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.14 0.0003088 Eth | $56,508.00 51,878.764 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0060% |
86 | Uniswap V3 (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.15 0.0003103 Eth | $44,189.00 38,522.772 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0044% |
87 | Korbit | CRV-KRW | $1.14 0.0003078 Eth | $28,655.00 26,605.447 CRV | 0.0031% |
88 | Gate.io | CRV-ETH | $1.15 0.0003114 Eth | $18,127.95 16,430.840 CRV | 0.0019% |
89 | ApeSwap (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.15 0.0003116 Eth | $8,967.54 8,366.387 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0010% |
90 | Luno | CRV-XBT | $1.15 0.0003110 Eth | $8,095.62 7,042.300 CRV | 0.0008% |
91 | Uniswap V3 (Optimism) | 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006 | $1.14 0.0003076 Eth | $5,883.20 5,472.395 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53 | 0.0006% |
92 | Balancer V2 (Polygon) | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32 | $1.17 0.0003151 Eth | $4,330.78 3,889.535 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0004% |
93 | Sushiswap (Arbitrum One) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.16 0.0003119 Eth | $4,110.64 3,780.022 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0004% |
94 | Uniswap V3 (Polygon) | 0X0B3F868E0BE5597D5DB7FEB59E1CADBB0FDDA50A-0X172370D5CD63279EFA6D502DAB29171933A610AF | $1.15 0.0003108 Eth | $1,209.27 531.298 0X0B3F868E0BE5597D5DB7FEB59E1CADBB0FDDA50A | 0.0001% |
95 | Nominex | CRV-USDT | $1.14 0.0003080 Eth | $793.58 698.593 CRV | 0.0001% |
96 | Gravity Finance | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.14 0.0003079 Eth | $710.51 663.309 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0001% |
97 | Energiswap | 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E-0XA55F26319462355474A9F2C8790860776A329AA4 | $1.15 0.0003116 Eth | $440.17 402.536 0XD3319EAF3C4743AC75AACE77BEFCFA445ED6E69E | 0.0000% |
98 | Swapr (Arbitrum) | 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $1.16 0.0003126 Eth | $177.91 160.755 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978 | 0.0000% |
99 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $1.15 0.0003105 Eth | $158.25 146.354 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0000% |
100 | Quickswap | 0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $1.16 0.0003121 Eth | $130.88 122.995 0X172370D5CD63279EFA6D502DAB29171933A610AF | 0.0000% |
Contract Source Code Verified (Exact Match)
Contract Name:
Vyper_contract
Compiler Version
vyper:0.2.4
Contract Source Code (Vyper language format)
# @version 0.2.4 """ @title Curve DAO Token @author Curve Finance @license MIT @notice ERC20 with piecewise-linear mining supply. @dev Based on the ERC-20 token standard as defined at https://eips.ethereum.org/EIPS/eip-20 """ from vyper.interfaces import ERC20 implements: ERC20 event Transfer: _from: indexed(address) _to: indexed(address) _value: uint256 event Approval: _owner: indexed(address) _spender: indexed(address) _value: uint256 event UpdateMiningParameters: time: uint256 rate: uint256 supply: uint256 event SetMinter: minter: address event SetAdmin: admin: address name: public(String[64]) symbol: public(String[32]) decimals: public(uint256) balanceOf: public(HashMap[address, uint256]) allowances: HashMap[address, HashMap[address, uint256]] total_supply: uint256 minter: public(address) admin: public(address) # General constants YEAR: constant(uint256) = 86400 * 365 # Allocation: # ========= # * shareholders - 30% # * emplyees - 3% # * DAO-controlled reserve - 5% # * Early users - 5% # == 43% == # left for inflation: 57% # Supply parameters INITIAL_SUPPLY: constant(uint256) = 1_303_030_303 INITIAL_RATE: constant(uint256) = 274_815_283 * 10 ** 18 / YEAR # leading to 43% premine RATE_REDUCTION_TIME: constant(uint256) = YEAR RATE_REDUCTION_COEFFICIENT: constant(uint256) = 1189207115002721024 # 2 ** (1/4) * 1e18 RATE_DENOMINATOR: constant(uint256) = 10 ** 18 INFLATION_DELAY: constant(uint256) = 86400 # Supply variables mining_epoch: public(int128) start_epoch_time: public(uint256) rate: public(uint256) start_epoch_supply: uint256 @external def __init__(_name: String[64], _symbol: String[32], _decimals: uint256): """ @notice Contract constructor @param _name Token full name @param _symbol Token symbol @param _decimals Number of decimals for token """ init_supply: uint256 = INITIAL_SUPPLY * 10 ** _decimals self.name = _name self.symbol = _symbol self.decimals = _decimals self.balanceOf[msg.sender] = init_supply self.total_supply = init_supply self.admin = msg.sender log Transfer(ZERO_ADDRESS, msg.sender, init_supply) self.start_epoch_time = block.timestamp + INFLATION_DELAY - RATE_REDUCTION_TIME self.mining_epoch = -1 self.rate = 0 self.start_epoch_supply = init_supply @internal def _update_mining_parameters(): """ @dev Update mining rate and supply at the start of the epoch Any modifying mining call must also call this """ _rate: uint256 = self.rate _start_epoch_supply: uint256 = self.start_epoch_supply self.start_epoch_time += RATE_REDUCTION_TIME self.mining_epoch += 1 if _rate == 0: _rate = INITIAL_RATE else: _start_epoch_supply += _rate * RATE_REDUCTION_TIME self.start_epoch_supply = _start_epoch_supply _rate = _rate * RATE_DENOMINATOR / RATE_REDUCTION_COEFFICIENT self.rate = _rate log UpdateMiningParameters(block.timestamp, _rate, _start_epoch_supply) @external def update_mining_parameters(): """ @notice Update mining rate and supply at the start of the epoch @dev Callable by any address, but only once per epoch Total supply becomes slightly larger if this function is called late """ assert block.timestamp >= self.start_epoch_time + RATE_REDUCTION_TIME # dev: too soon! self._update_mining_parameters() @external def start_epoch_time_write() -> uint256: """ @notice Get timestamp of the current mining epoch start while simultaneously updating mining parameters @return Timestamp of the epoch """ _start_epoch_time: uint256 = self.start_epoch_time if block.timestamp >= _start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() return self.start_epoch_time else: return _start_epoch_time @external def future_epoch_time_write() -> uint256: """ @notice Get timestamp of the next mining epoch start while simultaneously updating mining parameters @return Timestamp of the next epoch """ _start_epoch_time: uint256 = self.start_epoch_time if block.timestamp >= _start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() return self.start_epoch_time + RATE_REDUCTION_TIME else: return _start_epoch_time + RATE_REDUCTION_TIME @internal @view def _available_supply() -> uint256: return self.start_epoch_supply + (block.timestamp - self.start_epoch_time) * self.rate @external @view def available_supply() -> uint256: """ @notice Current number of tokens in existence (claimed or unclaimed) """ return self._available_supply() @external @view def mintable_in_timeframe(start: uint256, end: uint256) -> uint256: """ @notice How much supply is mintable from start timestamp till end timestamp @param start Start of the time interval (timestamp) @param end End of the time interval (timestamp) @return Tokens mintable from `start` till `end` """ assert start <= end # dev: start > end to_mint: uint256 = 0 current_epoch_time: uint256 = self.start_epoch_time current_rate: uint256 = self.rate # Special case if end is in future (not yet minted) epoch if end > current_epoch_time + RATE_REDUCTION_TIME: current_epoch_time += RATE_REDUCTION_TIME current_rate = current_rate * RATE_DENOMINATOR / RATE_REDUCTION_COEFFICIENT assert end <= current_epoch_time + RATE_REDUCTION_TIME # dev: too far in future for i in range(999): # Curve will not work in 1000 years. Darn! if end >= current_epoch_time: current_end: uint256 = end if current_end > current_epoch_time + RATE_REDUCTION_TIME: current_end = current_epoch_time + RATE_REDUCTION_TIME current_start: uint256 = start if current_start >= current_epoch_time + RATE_REDUCTION_TIME: break # We should never get here but what if... elif current_start < current_epoch_time: current_start = current_epoch_time to_mint += current_rate * (current_end - current_start) if start >= current_epoch_time: break current_epoch_time -= RATE_REDUCTION_TIME current_rate = current_rate * RATE_REDUCTION_COEFFICIENT / RATE_DENOMINATOR # double-division with rounding made rate a bit less => good assert current_rate <= INITIAL_RATE # This should never happen return to_mint @external def set_minter(_minter: address): """ @notice Set the minter address @dev Only callable once, when minter has not yet been set @param _minter Address of the minter """ assert msg.sender == self.admin # dev: admin only assert self.minter == ZERO_ADDRESS # dev: can set the minter only once, at creation self.minter = _minter log SetMinter(_minter) @external def set_admin(_admin: address): """ @notice Set the new admin. @dev After all is set up, admin only can change the token name @param _admin New admin address """ assert msg.sender == self.admin # dev: admin only self.admin = _admin log SetAdmin(_admin) @external @view def totalSupply() -> uint256: """ @notice Total number of tokens in existence. """ return self.total_supply @external @view def allowance(_owner : address, _spender : address) -> uint256: """ @notice Check the amount of tokens that an owner allowed to a spender @param _owner The address which owns the funds @param _spender The address which will spend the funds @return uint256 specifying the amount of tokens still available for the spender """ return self.allowances[_owner][_spender] @external def transfer(_to : address, _value : uint256) -> bool: """ @notice Transfer `_value` tokens from `msg.sender` to `_to` @dev Vyper does not allow underflows, so the subtraction in this function will revert on an insufficient balance @param _to The address to transfer to @param _value The amount to be transferred @return bool success """ assert _to != ZERO_ADDRESS # dev: transfers to 0x0 are not allowed self.balanceOf[msg.sender] -= _value self.balanceOf[_to] += _value log Transfer(msg.sender, _to, _value) return True @external def transferFrom(_from : address, _to : address, _value : uint256) -> bool: """ @notice Transfer `_value` tokens from `_from` to `_to` @param _from address The address which you want to send tokens from @param _to address The address which you want to transfer to @param _value uint256 the amount of tokens to be transferred @return bool success """ assert _to != ZERO_ADDRESS # dev: transfers to 0x0 are not allowed # NOTE: vyper does not allow underflows # so the following subtraction would revert on insufficient balance self.balanceOf[_from] -= _value self.balanceOf[_to] += _value self.allowances[_from][msg.sender] -= _value log Transfer(_from, _to, _value) return True @external def approve(_spender : address, _value : uint256) -> bool: """ @notice Approve `_spender` to transfer `_value` tokens on behalf of `msg.sender` @dev Approval may only be from zero -> nonzero or from nonzero -> zero in order to mitigate the potential race condition described here: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 @param _spender The address which will spend the funds @param _value The amount of tokens to be spent @return bool success """ assert _value == 0 or self.allowances[msg.sender][_spender] == 0 self.allowances[msg.sender][_spender] = _value log Approval(msg.sender, _spender, _value) return True @external def mint(_to: address, _value: uint256) -> bool: """ @notice Mint `_value` tokens and assign them to `_to` @dev Emits a Transfer event originating from 0x00 @param _to The account that will receive the created tokens @param _value The amount that will be created @return bool success """ assert msg.sender == self.minter # dev: minter only assert _to != ZERO_ADDRESS # dev: zero address if block.timestamp >= self.start_epoch_time + RATE_REDUCTION_TIME: self._update_mining_parameters() _total_supply: uint256 = self.total_supply + _value assert _total_supply <= self._available_supply() # dev: exceeds allowable mint amount self.total_supply = _total_supply self.balanceOf[_to] += _value log Transfer(ZERO_ADDRESS, _to, _value) return True @external def burn(_value: uint256) -> bool: """ @notice Burn `_value` tokens belonging to `msg.sender` @dev Emits a Transfer event with a destination of 0x00 @param _value The amount that will be burned @return bool success """ self.balanceOf[msg.sender] -= _value self.total_supply -= _value log Transfer(msg.sender, ZERO_ADDRESS, _value) return True @external def set_name(_name: String[64], _symbol: String[32]): """ @notice Change the token name and symbol to `_name` and `_symbol` @dev Only callable by the admin account @param _name New token name @param _symbol New token symbol """ assert msg.sender == self.admin, "Only admin is allowed to change name" self.name = _name self.symbol = _symbol
Contract Security Audit
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Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000f43757276652044414f20546f6b656e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034352560000000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : _name (string): Curve DAO Token
Arg [1] : _symbol (string): CRV
Arg [2] : _decimals (uint256): 18
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000012
Arg [3] : 000000000000000000000000000000000000000000000000000000000000000f
Arg [4] : 43757276652044414f20546f6b656e0000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [6] : 4352560000000000000000000000000000000000000000000000000000000000
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