ETH Price: $4,077.14 (+6.49%)

Token

Curve DAO Token (CRV)
 

Overview

Max Total Supply

2,200,308,306.212185798372941307 CRV

Holders

88,547 ( 0.003%)

Market

Price

$1.22 @ 0.000299 ETH (+9.90%)

Onchain Market Cap

$2,680,285,041.57

Circulating Supply Market Cap

$1,518,342,681.35

Other Info

Token Contract (WITH 18 Decimals)

Balance
933.92503260428383886 CRV

Value
$1,137.65 ( ~0.279031566626887 Eth) [0.0000%]
0x37b917a3670dffba2441ee1773ef9af6257a7d45
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OVERVIEW

Curve is an exchange liquidity pool on Ethereum. Curve is designed for extremely efficient stablecoin trading and low risk, supplemental fee income for liquidity providers, without an opportunity cost.

Market

Volume (24H):$1,421,681,780.31
Market Capitalization:$1,518,342,681.35
Circulating Supply:1,246,442,808.00 CRV
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume
1
Binance
CRV-USDT$1.21
0.0002977 Eth
$286,423,622.00
244,253,783.600 CRV
28.9828%
2
Websea
CRV-USDT$1.21
0.0002975 Eth
$148,128,364.00
0.000 CRV
0.0000%
3
Gate.io
CRV-USDT$1.22
0.0002993 Eth
$98,140,316.00
85,378,851.530 CRV
10.1309%
4
OKX
CRV-USDT$1.21
0.0002984 Eth
$76,625,531.00
65,802,890.906 CRV
7.8081%
5
Bitget
CRV-USDT$1.21
0.0002979 Eth
$59,754,144.00
51,009,964.055 CRV
6.0528%
6
Coinbase Exchange
CRV-USD$1.21
0.0002974 Eth
$51,057,896.00
42,154,801.930 CRV
5.0020%
7
Bitunix
CRV-USDT$1.22
0.0002996 Eth
$42,678,921.00
35,047,188.500 CRV
4.1586%
8
Bybit
CRV-USDT$1.22
0.0002992 Eth
$41,174,691.00
35,576,771.770 CRV
4.2215%
9
HTX
CRV-USDT$1.21
0.0002976 Eth
$35,510,181.00
31,106,349.099 CRV
3.6910%
10
XT.COM
CRV-USDT$1.21
0.0002969 Eth
$22,818,475.00
19,449,053.400 CRV
2.3078%
11
Slex
CRV-USDT$1.22
0.0002988 Eth
$20,191,058.00
17,714,497.100 CRV
2.1020%
12
BIT
CRV-USDT$1.22
0.0002990 Eth
$19,115,202.00
15,727,902.205 CRV
1.8662%
13
DigiFinex
CRV-USDT$1.21
0.0002978 Eth
$15,298,009.00
12,637,056.900 CRV
1.4995%
14
Kraken
CRV-USD$1.21
0.0002968 Eth
$12,645,927.00
10,468,482.292 CRV
1.2422%
15
Niza Global
CRV-USD$1.22
0.0003010 Eth
$12,135,786.00
10,624,829.454 CRV
1.2607%
16
KuCoin
CRV-USDT$1.22
0.0002990 Eth
$11,013,612.00
9,061,204.620 CRV
1.0752%
17
LBank
CRV-USDT$1.21
0.0002976 Eth
$10,074,288.00
8,315,082.580 CRV
0.9867%
18
Biconomy.com
CRV-USDT$1.22
0.0002992 Eth
$10,070,964.00
8,716,409.814 CRV
1.0343%
19
Dex-Trade
CRV-USDT$1.21
0.0002976 Eth
$8,479,323.00
6,998,160.974 CRV
0.8304%
20
Currency.com
CRV-USD$1.22
0.0003000 Eth
$8,256,701.00
6,758,370.000 CRV
0.8019%
21
Bitrue
CRV-XRP$1.22
0.0002990 Eth
$7,998,118.00
6,578,073.710 CRV
0.7805%
22
Binance
CRV-TRY$1.23
0.0003023 Eth
$7,076,833.00
5,886,907.800 CRV
0.6985%
23
Coinstore
CRV-USDT$1.23
0.0003014 Eth
$6,920,069.00
5,917,421.900 CRV
0.7022%
24
Binance
CRV-USDC$1.22
0.0003008 Eth
$6,315,489.00
5,378,756.000 CRV
0.6382%
25
Bitrue
CRV-USDT$1.22
0.0002999 Eth
$6,179,453.00
5,065,998.740 CRV
0.6011%
26
Binance
CRV-BTC$1.21
0.0002982 Eth
$6,105,034.00
5,049,860.800 CRV
0.5992%
27
Bitkub
CRV-THB$1.20
0.0002948 Eth
$5,786,159.00
4,821,043.867 CRV
0.5721%
28
Toobit
CRV-USDT$1.21
0.0002978 Eth
$5,668,914.00
4,827,970.100 CRV
0.5729%
29
FMFW.io
CRV-USDT$1.22
0.0002995 Eth
$5,648,547.00
4,633,558.300 CRV
0.5498%
30
Luno
CRV-MYR$1.21
0.0002965 Eth
$5,630,251.00
4,659,717.880 CRV
0.5529%
31
HitBTC
CRV-USDT$1.22
0.0002986 Eth
$5,428,320.00
4,705,944.200 CRV
0.5584%
32
Hotcoin
CRV-USDT$1.21
0.0002973 Eth
$5,305,873.00
4,382,219.100 CRV
0.5200%
33
BingX
CRV-USDT$1.21
0.0002977 Eth
$5,178,809.00
4,433,810.883 CRV
0.5261%
34
PointPay
CRV-USDT$1.22
0.0003005 Eth
$4,801,625.00
4,090,167.915 CRV
0.4853%
35
Hibt
CRV-USDT$1.22
0.0002991 Eth
$4,589,313.00
3,942,261.161 CRV
0.4678%
36
Bullish
CRV-USDC$1.21
0.0002983 Eth
$4,524,595.00
3,965,225.324 CRV
0.4705%
37
Bithumb
CRV-KRW$1.18
0.0002904 Eth
$4,518,353.00
3,819,987.085 CRV
0.4533%
38
Bitvavo
CRV-EUR$1.21
0.0002978 Eth
$4,457,888.00
3,676,928.851 CRV
0.4363%
39
Ourbit
CRV-USDT$1.21
0.0002974 Eth
$4,397,401.00
3,760,118.050 CRV
0.4462%
40
CoinEx
CRV-USDT$1.22
0.0002988 Eth
$4,389,754.00
3,723,586.130 CRV
0.4418%
41
WhiteBIT
CRV-BTC$1.22
0.0002991 Eth
$3,276,443.00
2,689,520.700 CRV
0.3191%
42
Uniswap V3 (Ethereum)
0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.23
0.0003014 Eth
$3,184,322.00
2,606,953.420 0XD533A949740BB3306D119CC777FA900BA034CD52
0.3093%
43
BitMart
CRV-USDT$1.21
0.0002972 Eth
$3,113,974.00
2,577,222.060 CRV
0.3058%
44
Trubit
CRV-USDT$1.21
0.0002984 Eth
$2,847,249.00
2,494,862.900 CRV
0.2960%
45
Curve (Ethereum)
0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XD533A949740BB3306D119CC777FA900BA034CD52$1.23
0.0003021 Eth
$2,801,885.00
674.089 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2
0.0001%
46
Kraken
CRV-EUR$1.21
0.0002972 Eth
$2,583,514.00
2,135,668.515 CRV
0.2534%
47
Bit2Me
CRV-EUR$1.22
0.0002992 Eth
$2,427,705.00
2,094,866.462 CRV
0.2486%
48
Coinbase Exchange
CRV-EUR$1.21
0.0002966 Eth
$2,063,179.00
1,707,685.600 CRV
0.2026%
49
LocalTrade
CRV-USDT$1.21
0.0002972 Eth
$2,004,401.00
1,656,874.609 CRV
0.1966%
50
P2B
CRV-USD$1.21
0.0002979 Eth
$1,812,783.00
1,494,462.190 CRV
0.1773%
51
Upbit
CRV-BTC$1.22
0.0002997 Eth
$1,604,729.00
1,317,064.050 CRV
0.1563%
52
WEEX
CRV-USDT$1.21
0.0002977 Eth
$1,502,813.00
1,240,196.418 CRV
0.1472%
53
Uniswap V3 (Ethereum)
0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B-0XD533A949740BB3306D119CC777FA900BA034CD52$1.21
0.0002978 Eth
$1,380,125.00
190,711.023 0X4E3FBD56CD56C3E72C1403E103B45DB9DA5B9D2B
0.0226%
54
WhiteBIT
CRV-TRY$1.22
0.0003001 Eth
$1,368,157.00
1,119,066.000 CRV
0.1328%
55
OKX
CRV-USDC$1.22
0.0002991 Eth
$1,293,444.00
1,114,253.032 CRV
0.1322%
56
LATOKEN
CRV-BTC$1.22
0.0002992 Eth
$1,267,236.00
1,040,792.811 CRV
0.1235%
57
Pionex
CRV-USDT$1.21
0.0002973 Eth
$1,027,598.00
872,191.058 CRV
0.1035%
58
BloFin
CRV-USDT$1.21
0.0002984 Eth
$976,764.00
847,989.400 CRV
0.1006%
59
BitDelta
CRV-USDT$1.21
0.0002981 Eth
$930,532.00
821,241.900 CRV
0.0974%
60
Gemini
CRV-USD$1.21
0.0002983 Eth
$873,348.00
719,159.974 CRV
0.0853%
61
Quickswap (v3)
0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$1.21
0.0002981 Eth
$852,433.00
714,964.734 0X172370D5CD63279EFA6D502DAB29171933A610AF
0.0848%
62
Uniswap V3 (Polygon)
0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$1.21
0.0002983 Eth
$687,563.00
571,256.953 0X172370D5CD63279EFA6D502DAB29171933A610AF
0.0678%
63
Bitso
CRV-USD$1.22
0.0002999 Eth
$652,175.00
534,206.483 CRV
0.0634%
64
Uniswap V3 (Ethereum)
0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.20
0.0002955 Eth
$434,815.00
377,983.055 0XD533A949740BB3306D119CC777FA900BA034CD52
0.0449%
65
Coinbase Exchange
CRV-GBP$1.21
0.0002967 Eth
$430,140.00
355,940.230 CRV
0.0422%
66
WEEX
CRV-USDC$1.21
0.0002974 Eth
$427,190.00
375,465.000 CRV
0.0446%
67
AscendEX (BitMax)
CRV-USDT$1.21
0.0002979 Eth
$404,496.00
334,054.800 CRV
0.0396%
68
BigONE
CRV-USDT$1.21
0.0002974 Eth
$399,406.00
329,964.826 CRV
0.0392%
69
Curve (Optimism)
0X4200000000000000000000000000000000000042-0X0994206DFE8DE6EC6920FF4D779B0D950605FB53$1.21
0.0002980 Eth
$381,695.00
139,557.285 0X4200000000000000000000000000000000000042
0.0166%
70
Coinbase Exchange
CRV-BTC$1.21
0.0002972 Eth
$362,803.00
299,739.620 CRV
0.0356%
71
Bitget
CRV-BTC$1.21
0.0002985 Eth
$332,515.00
273,694.673 CRV
0.0325%
72
Curve (Arbitrum)
0X912CE59144191C1204E64559FE8253A0E49E6548-0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978$1.26
0.0003093 Eth
$305,117.00
242,238.398 0X912CE59144191C1204E64559FE8253A0E49E6548
0.0287%
73
Tokenize
CRV-SGD$1.21
0.0002972 Eth
$293,741.00
242,775.882 CRV
0.0288%
74
Tokenize
CRV-USD$1.21
0.0002963 Eth
$274,718.00
227,603.828 CRV
0.0270%
75
KickEX
CRV-USDT$1.21
0.0002980 Eth
$272,640.00
224,718.002 CRV
0.0267%
76
LATOKEN
CRV-USDT$1.22
0.0002992 Eth
$260,584.00
214,283.999 CRV
0.0254%
77
BVOX
CRV-USDT$1.21
0.0002975 Eth
$220,558.00
192,331.800 CRV
0.0228%
78
Dex-Trade
CRV-BTC$1.22
0.0002987 Eth
$181,404.00
149,173.581 CRV
0.0177%
79
TokoCrypto
CRV-USDT$1.22
0.0002996 Eth
$154,898.00
127,078.933 CRV
0.0151%
80
Uniswap V3 (Ethereum)
0XD533A949740BB3306D119CC777FA900BA034CD52-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984$1.23
0.0003008 Eth
$154,428.00
118,799.195 0XD533A949740BB3306D119CC777FA900BA034CD52
0.0141%
81
Sushiswap
0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.22
0.0002986 Eth
$129,878.00
107,130.425 0XD533A949740BB3306D119CC777FA900BA034CD52
0.0127%
82
Sushiswap (Polygon POS)
0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$1.21
0.0002975 Eth
$79,416.00
65,745.910 0X172370D5CD63279EFA6D502DAB29171933A610AF
0.0078%
83
P2B
CRV-BTC$1.21
0.0002981 Eth
$70,894.00
58,405.600 CRV
0.0069%
84
Luno
CRV-ZAR$1.23
0.0003032 Eth
$64,884.00
52,602.550 CRV
0.0062%
85
Uniswap V3 (Optimism)
0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006$1.22
0.0002988 Eth
$37,523.00
31,473.831 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53
0.0037%
86
Korbit
CRV-KRW$1.23
0.0003015 Eth
$24,544.00
21,408.320 CRV
0.0025%
87
ApeSwap (Polygon)
0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$1.22
0.0002994 Eth
$21,599.00
17,738.694 0X172370D5CD63279EFA6D502DAB29171933A610AF
0.0021%
88
Foxbit
CRV-BRL$1.25
0.0003069 Eth
$21,208.00
17,209.436 CRV
0.0020%
89
Gate.io
CRV-ETH$1.21
0.0002978 Eth
$18,706.02
15,529.180 CRV
0.0018%
90
HashKey Global
CRV-USDT$1.21
0.0002979 Eth
$15,415.60
13,534.800 CRV
0.0016%
91
CEX.IO
CRV-USDT$1.21
0.0002975 Eth
$13,331.86
10,833.831 CRV
0.0013%
92
DeFi Swap
0XD533A949740BB3306D119CC777FA900BA034CD52-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.23
0.0003016 Eth
$13,260.40
10,954.658 0XD533A949740BB3306D119CC777FA900BA034CD52
0.0013%
93
Luno
CRV-XBT$1.23
0.0003022 Eth
$11,290.66
9,177.200 CRV
0.0011%
94
Uniswap V3 (Arbitrum One)
0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$1.22
0.0002984 Eth
$7,104.95
6,128.258 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978
0.0007%
95
Sushiswap (Arbitrum One)
0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$1.22
0.0002997 Eth
$6,343.75
5,242.439 0X11CDB42B0EB46D95F990BEDD4695A6E3FA034978
0.0006%
96
Balancer V2 (Polygon)
0X172370D5CD63279EFA6D502DAB29171933A610AF-0XDF7837DE1F2FA4631D716CF2502F8B230F1DCC32$1.21
0.0002984 Eth
$5,680.02
4,624.048 0X172370D5CD63279EFA6D502DAB29171933A610AF
0.0005%
97
Uniswap V3 (Optimism)
0X0994206DFE8DE6EC6920FF4D779B0D950605FB53-0X4200000000000000000000000000000000000006$1.22
0.0002991 Eth
$4,214.89
3,492.626 0X0994206DFE8DE6EC6920FF4D779B0D950605FB53
0.0004%
98
Uniswap V3 (Ethereum)
0XD533A949740BB3306D119CC777FA900BA034CD52-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.23
0.0003017 Eth
$2,446.86
2,098.897 0XD533A949740BB3306D119CC777FA900BA034CD52
0.0002%
99
Gravity Finance
0X172370D5CD63279EFA6D502DAB29171933A610AF-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$1.24
0.0003061 Eth
$1,186.31
974.878 0X172370D5CD63279EFA6D502DAB29171933A610AF
0.0001%
100
Quickswap
0X172370D5CD63279EFA6D502DAB29171933A610AF-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$1.23
0.0003027 Eth
$338.67
279.295 0X172370D5CD63279EFA6D502DAB29171933A610AF
0.0000%

Contract Source Code Verified (Exact Match)

Contract Name:
Vyper_contract

Compiler Version
vyper:0.2.4

Optimization Enabled:
N/A

Other Settings:
default evmVersion, MIT license

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

Contract ABI

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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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