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MOMENTO Token

About MOMENTO

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Token 4 years
CoinMarketCap 4 years

Website

momento.art

A DEFI+NFT project that aims to portray some of the most iconic and fascinating moments of the past decade that helps you to earn through the NFTs you buy.
We have 2 broad categories of NFTs:
a. General Category - Where we depict some of the most talked about moments of the past decade
b. Cryptocurrencies - Where we depict the journey of some of the most prominent and upcoming cryptocurrencies.

Through our NFTs, people will be able to earn through multiple forms.

a. There is a 3% redistribution per transaction. So you earn just by holding.
b. You can stake the NFTs you own with just a couple of clicks and start earning staking rewards
c. The subsequent NFT sales get redistributed to the initial holders so more income from just holding the NFTs.

There is a 10% tax per buy/sell:

3% - Liquidity (Increased the price floor over time)
3% - Redistributed to holders (Passive income)
4% - Buyback and burn (Anti-dump measure)

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Laser Scorebeta Last Audit: 2 March 2022

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Token is either risky or in presale. For presale 30+ is a fine score.

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Code Certik Audit

Reentrancy in Momento._transfer(address,address,uint256) (contracts/Momento.sol#497-564):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/Momento.sol#551)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/Momento.sol#551)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- _rOwned[address(this)] += rLiquidity (contracts/Momento.sol#441)
- _rOwned[contractAddress] += _rBuyBackTokenCount (contracts/Momento.sol#681)
- _rOwned[sender] -= (tAmount * currentRate) (contracts/Momento.sol#692)
- _rOwned[recipient] += (tValues[0] * currentRate) (contracts/Momento.sol#693)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- _rTotal -= rFee (contracts/Momento.sol#399)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- _tOwned[address(this)] += tLiquidity (contracts/Momento.sol#443)
- _tOwned[sender] -= tAmount (contracts/Momento.sol#695)
- _tOwned[recipient] += tValues[0] (contracts/Momento.sol#698)
Reentrancy in Momento.buyBackAndBurn(uint256) (contracts/Momento.sol#566-576):
External calls:
- _buyBackAndBurn(_amountETH) (contracts/Momento.sol#573)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp) (contracts/Momento.sol#586-593)
State variables written after the call(s):
- _buyBackEthBalance -= _amountETH (contracts/Momento.sol#574)
Apply the check-effects-interactions pattern.

Additional information: link

Momento._transfer(address,address,uint256) (contracts/Momento.sol#497-564) uses a dangerous strict equality:
- balanceOf(to) == 0 (contracts/Momento.sol#508)
Momento._transfer(address,address,uint256) (contracts/Momento.sol#497-564) uses a dangerous strict equality:
- balanceOf(from) == amount (contracts/Momento.sol#509)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

Momento.setMarketingAddress(address)._marketingAddress (contracts/Momento.sol#191) lacks a zero-check on :
- marketingAddress = _marketingAddress (contracts/Momento.sol#192)
Momento.setStakingAddress(address)._stakingAddress (contracts/Momento.sol#195) lacks a zero-check on :
- stakingAddress = _stakingAddress (contracts/Momento.sol#196)
Check that the address is not zero.

Additional information: link

Momento.setMaxSecondsBetweenBuySell(uint256) (contracts/Momento.sol#366-368) should emit an event for:
- _maxSecondsBetweenBuySell = _seconds (contracts/Momento.sol#367)
Momento.setTaxFeePercent(uint256) (contracts/Momento.sol#370-372) should emit an event for:
- _taxFee = taxFee (contracts/Momento.sol#371)
Momento.setLiquidityFeePercent(uint256) (contracts/Momento.sol#374-376) should emit an event for:
- _liquidityFee = liquidityFee (contracts/Momento.sol#375)
Momento.buyBackAndBurn(uint256) (contracts/Momento.sol#566-576) should emit an event for:
- _buyBackEthBalance -= _amountETH (contracts/Momento.sol#574)
Emit an event for critical parameter changes.

Additional information: link

Momento.constructor() (contracts/Momento.sol#88-158) performs a multiplication on the result of a division:
-onePercentR = _rTotal / 100 (contracts/Momento.sol#90)
-_rOwned[_msgSender()] = onePercentR * 60 (contracts/Momento.sol#95)
Momento.constructor() (contracts/Momento.sol#88-158) performs a multiplication on the result of a division:
-onePercentR = _rTotal / 100 (contracts/Momento.sol#90)
-_rOwned[marketingAddress] = onePercentR * 2 (contracts/Momento.sol#97)
Momento.constructor() (contracts/Momento.sol#88-158) performs a multiplication on the result of a division:
-onePercentR = _rTotal / 100 (contracts/Momento.sol#90)
-_rStakingTotal = onePercentR * 12 (contracts/Momento.sol#101)
Momento.constructor() (contracts/Momento.sol#88-158) performs a multiplication on the result of a division:
-_rStakingLock = (_rStakingTotal / 10) * 9 (contracts/Momento.sol#102)
Momento.constructor() (contracts/Momento.sol#88-158) performs a multiplication on the result of a division:
-onePercentR = _rTotal / 100 (contracts/Momento.sol#90)
-_rOwned[deadAddress] = onePercentR * 26 (contracts/Momento.sol#112)
Momento.unlockStakingTokens() (contracts/Momento.sol#160-189) performs a multiplication on the result of a division:
-monthCount = difference / 2592000 (contracts/Momento.sol#174)
-amountToTransfer = monthCount * _rStakingUnlockTokenCount (contracts/Momento.sol#177)
Momento.unlockStakingTokens() (contracts/Momento.sol#160-189) performs a multiplication on the result of a division:
-monthCount = difference / 2592000 (contracts/Momento.sol#174)
-stakingUnlockTime += monthCount * 2592000 (contracts/Momento.sol#182)
Consider ordering multiplication before division.

Additional information: link

Reentrancy in Momento._tokenTransfer(address,address,uint256,bool) (contracts/Momento.sol#660-705):
External calls:
- swapTokensForEth(_tBuyBackTokenCount) (contracts/Momento.sol#684)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
State variables written after the call(s):
- restoreAllFee() (contracts/Momento.sol#703)
- _buyBackFee = _previousBuyBackFee (contracts/Momento.sol#478)
- restoreAllFee() (contracts/Momento.sol#703)
- _liquidityFee = _previousLiquidityFee (contracts/Momento.sol#477)
- _rBuyBackTokenCount = 0 (contracts/Momento.sol#686)
- _takeLiquidity(tValues[2],tValues[2] * currentRate) (contracts/Momento.sol#689)
- _rOwned[address(this)] += rLiquidity (contracts/Momento.sol#441)
- _rOwned[sender] -= (tAmount * currentRate) (contracts/Momento.sol#692)
- _rOwned[recipient] += (tValues[0] * currentRate) (contracts/Momento.sol#693)
- _reflectFee(tValues[1],tValues[1] * currentRate) (contracts/Momento.sol#690)
- _rTotal -= rFee (contracts/Momento.sol#399)
- _takeLiquidity(tValues[2],tValues[2] * currentRate) (contracts/Momento.sol#689)
- _tOwned[address(this)] += tLiquidity (contracts/Momento.sol#443)
- _tOwned[sender] -= tAmount (contracts/Momento.sol#695)
- _tOwned[recipient] += tValues[0] (contracts/Momento.sol#698)
- restoreAllFee() (contracts/Momento.sol#703)
- _taxFee = _previousTaxFee (contracts/Momento.sol#476)
Apply the check-effects-interactions pattern.

Additional information: link

Momento._transfer(address,address,uint256).takeFee (contracts/Momento.sol#512) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

Momento.addLiquidity(uint256,uint256) (contracts/Momento.sol#644-657) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
Ensure that all the return values of the function calls are used.

Additional information: link

Momento.allowance(address,address).owner (contracts/Momento.sol#229) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#34-36) (function)
Momento._approve(address,address,uint256).owner (contracts/Momento.sol#486) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#34-36) (function)
Rename the local variables that shadow another component.

Additional information: link

Reentrancy in Momento._tokenTransfer(address,address,uint256,bool) (contracts/Momento.sol#660-705):
External calls:
- swapTokensForEth(_tBuyBackTokenCount) (contracts/Momento.sol#684)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
State variables written after the call(s):
- _buyBackEthBalance += contractAddress.balance - _balBefore (contracts/Momento.sol#685)
- _reflectFee(tValues[1],tValues[1] * currentRate) (contracts/Momento.sol#690)
- _tFeeTotal += tFee (contracts/Momento.sol#400)
Reentrancy in Momento._transfer(address,address,uint256) (contracts/Momento.sol#497-564):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/Momento.sol#551)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/Momento.sol#551)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- _allowances[owner][spender] = amount (contracts/Momento.sol#493)
Reentrancy in Momento.constructor() (contracts/Momento.sol#88-158):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (contracts/Momento.sol#118-121)
State variables written after the call(s):
- _holderCount = 4 (contracts/Momento.sol#126)
- _isExcludedFromFee[owner()] = true (contracts/Momento.sol#130)
- _isExcludedFromFee[address(this)] = true (contracts/Momento.sol#131)
- _isUniswapV2Pair[uniswapV2Pair] = true (contracts/Momento.sol#128)
- uniswapV2Router = _uniswapV2Router (contracts/Momento.sol#124)
Reentrancy in Momento.swapAndLiquify(uint256) (contracts/Momento.sol#603-624):
External calls:
- swapTokensForEth(half) (contracts/Momento.sol#615)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
- addLiquidity(otherHalf,newBalance) (contracts/Momento.sol#621)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (contracts/Momento.sol#621)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (contracts/Momento.sol#621)
- _allowances[owner][spender] = amount (contracts/Momento.sol#493)
Reentrancy in Momento.transferFrom(address,address,uint256) (contracts/Momento.sol#247-255):
External calls:
- _transfer(sender,recipient,amount) (contracts/Momento.sol#252)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/Momento.sol#252)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (contracts/Momento.sol#253)
- _allowances[owner][spender] = amount (contracts/Momento.sol#493)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Momento._buyBackAndBurn(uint256) (contracts/Momento.sol#578-601):
External calls:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp) (contracts/Momento.sol#586-593)
Event emitted after the call(s):
- SwapETHForTokens(amount,path) (contracts/Momento.sol#595)
- Transfer(address(this),deadAddress,balanceOf(deadAddress) - _deadBalBefore) (contracts/Momento.sol#596-600)
Reentrancy in Momento._tokenTransfer(address,address,uint256,bool) (contracts/Momento.sol#660-705):
External calls:
- swapTokensForEth(_tBuyBackTokenCount) (contracts/Momento.sol#684)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
Event emitted after the call(s):
- Transfer(sender,recipient,tValues[0]) (contracts/Momento.sol#700)
Reentrancy in Momento._transfer(address,address,uint256) (contracts/Momento.sol#497-564):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/Momento.sol#551)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/Momento.sol#551)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/Momento.sol#494)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- Transfer(sender,contractAddress,_tBuyBackTokenCount) (contracts/Momento.sol#682)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
- Transfer(sender,recipient,tValues[0]) (contracts/Momento.sol#700)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Momento.sol#563)
Reentrancy in Momento.constructor() (contracts/Momento.sol#88-158):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (contracts/Momento.sol#118-121)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),tokenFromReflection(_rOwned[_msgSender()])) (contracts/Momento.sol#133-137)
- Transfer(address(0),marketingAddress,tokenFromReflection(_rOwned[marketingAddress])) (contracts/Momento.sol#138-142)
- Transfer(address(0),stakingAddress,tokenFromReflection(_rOwned[stakingAddress])) (contracts/Momento.sol#143-147)
- Transfer(address(0),address(0),tokenFromReflection(_rOwned[address(0)])) (contracts/Momento.sol#148-152)
- Transfer(address(0),deadAddress,tokenFromReflection(_rOwned[deadAddress])) (contracts/Momento.sol#153-157)
Reentrancy in Momento.swapAndLiquify(uint256) (contracts/Momento.sol#603-624):
External calls:
- swapTokensForEth(half) (contracts/Momento.sol#615)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
- addLiquidity(otherHalf,newBalance) (contracts/Momento.sol#621)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (contracts/Momento.sol#621)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/Momento.sol#494)
- addLiquidity(otherHalf,newBalance) (contracts/Momento.sol#621)
- SwapAndLiquify(half,newBalance,otherHalf) (contracts/Momento.sol#623)
Reentrancy in Momento.transferFrom(address,address,uint256) (contracts/Momento.sol#247-255):
External calls:
- _transfer(sender,recipient,amount) (contracts/Momento.sol#252)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Momento.sol#635-641)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/Momento.sol#252)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/Momento.sol#649-656)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/Momento.sol#494)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (contracts/Momento.sol#253)
Apply the check-effects-interactions pattern.

Additional information: link

Momento.unlockStakingTokens() (contracts/Momento.sol#160-189) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > stakingUnlockTime,Function can be called only if stakingUnlockTime has passed) (contracts/Momento.sol#165-168)
- require(bool,string)(stakingUnlockCount < _rStakingUnlockMonths,You are already unlocked all tokens) (contracts/Momento.sol#169-172)
- monthCount > remainingMonths (contracts/Momento.sol#176)
- amountToTransfer > 0 (contracts/Momento.sol#178)
Momento.tokenFromReflection(uint256) (contracts/Momento.sol#318-322) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(rAmount <= _rTotal,Amount must be less than total reflections) (contracts/Momento.sol#319)
Momento._getCurrentSupply() (contracts/Momento.sol#425-438) uses timestamp for comparisons
Dangerous comparisons:
- _rOwned[_excludedFromReward[i]] > rSupply || _tOwned[_excludedFromReward[i]] > tSupply (contracts/Momento.sol#430-431)
- rSupply < _rTotal / _tTotal (contracts/Momento.sol#436)
Momento._transfer(address,address,uint256) (contracts/Momento.sol#497-564) uses timestamp for comparisons
Dangerous comparisons:
- balanceOf(to) == 0 (contracts/Momento.sol#508)
- balanceOf(from) == amount (contracts/Momento.sol#509)
- require(bool,string)(_cooldown[from].sell < timestamp,You can sell tokens once in _maxSecondsBetweenBuySell seconds) (contracts/Momento.sol#529-532)
- overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity (contracts/Momento.sol#541-542)
- overMinTokenBalance && ! inSwapAndLiquify && ! _isUniswapV2Pair[from] && swapAndLiquifyEnabled (contracts/Momento.sol#544-547)
Momento._tokenTransfer(address,address,uint256,bool) (contracts/Momento.sol#660-705) uses timestamp for comparisons
Dangerous comparisons:
- ! _isUniswapV2Pair[sender] && _rBuyBackTokenCount > 0 (contracts/Momento.sol#678)
Avoid relying on block.timestamp.

Additional information: link

Different versions of Solidity is used:
- Version used: ['>=0.5.0', '>=0.6.2', '^0.8.0', '^0.8.4']
- ^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- >=0.5.0 (@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol#1)
- >=0.6.2 (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#1)
- >=0.6.2 (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol#1)
- ^0.8.4 (contracts/Momento.sol#2)
Use one Solidity version.

Additional information: link

Momento.includeInReward(address) (contracts/Momento.sol#343-356) has costly operations inside a loop:
- _excludedFromReward.pop() (contracts/Momento.sol#352)
Use a local variable to hold the loop computation result.

Additional information: link

Context._msgData() (@openzeppelin/contracts/utils/Context.sol#20-22) is never used and should be removed
Remove unused functions.

Additional information: link

Momento._rTotal (contracts/Momento.sol#49) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
Momento._previousTaxFee (contracts/Momento.sol#56) is set pre-construction with a non-constant function or state variable:
- _taxFee
Momento._previousLiquidityFee (contracts/Momento.sol#59) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
Momento._previousBuyBackFee (contracts/Momento.sol#62) is set pre-construction with a non-constant function or state variable:
- _buyBackFee
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Pragma version^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3) allows old versions
Pragma version>=0.5.0 (@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol#1) allows old versions
Pragma version>=0.6.2 (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#1) allows old versions
Pragma version>=0.6.2 (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol#1) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Function IUniswapV2Router01.WETH() (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#5) is not in mixedCase
Parameter Momento.setMarketingAddress(address)._marketingAddress (contracts/Momento.sol#191) is not in mixedCase
Parameter Momento.setStakingAddress(address)._stakingAddress (contracts/Momento.sol#195) is not in mixedCase
Parameter Momento.setMaxSecondsBetweenBuySell(uint256)._seconds (contracts/Momento.sol#366) is not in mixedCase
Parameter Momento.setSwapAndLiquifyEnabled(bool)._enabled (contracts/Momento.sol#378) is not in mixedCase
Parameter Momento.calculateTaxFee(uint256)._amount (contracts/Momento.sol#447) is not in mixedCase
Parameter Momento.calculateLiquidityFee(uint256)._amount (contracts/Momento.sol#451) is not in mixedCase
Parameter Momento.calculateBuyBackFee(uint256)._amount (contracts/Momento.sol#459) is not in mixedCase
Parameter Momento.buyBackAndBurn(uint256)._amountETH (contracts/Momento.sol#566) is not in mixedCase
Constant Momento.deadAddress (contracts/Momento.sol#17-18) is not in UPPER_CASE_WITH_UNDERSCORES
Variable Momento._taxFee (contracts/Momento.sol#55) is not in mixedCase
Variable Momento._liquidityFee (contracts/Momento.sol#58) is not in mixedCase
Variable Momento._buyBackFee (contracts/Momento.sol#61) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#10) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol#11)
Variable Momento._rBuyBackTokenCount (contracts/Momento.sol#29) is too similar to Momento._tokenTransfer(address,address,uint256,bool)._tBuyBackTokenCount (contracts/Momento.sol#679)
Prevent variables from having similar names.

Additional information: link

Momento.slitherConstructorVariables() (contracts/Momento.sol#9-706) uses literals with too many digits:
- _tTotal = 1000000000000 * 10 ** 9 (contracts/Momento.sol#48)
Momento.slitherConstructorVariables() (contracts/Momento.sol#9-706) uses literals with too many digits:
- numTokensSellToAddToLiquidity = 500000000 * 10 ** 9 (contracts/Momento.sol#71)
Momento.slitherConstructorConstantVariables() (contracts/Momento.sol#9-706) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (contracts/Momento.sol#17-18)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Momento._rBurnLock (contracts/Momento.sol#27) is never used in Momento (contracts/Momento.sol#9-706)
Momento._lastMaxHolderCount (contracts/Momento.sol#45) is never used in Momento (contracts/Momento.sol#9-706)
Remove unused state variables.

Additional information: link

Momento._lastMaxHolderCount (contracts/Momento.sol#45) should be constant
Momento._name (contracts/Momento.sol#52) should be constant
Momento._rBurnLock (contracts/Momento.sol#27) should be constant
Momento._symbol (contracts/Momento.sol#53) should be constant
Momento._tTotal (contracts/Momento.sol#48) should be constant
Momento.numTokensSellToAddToLiquidity (contracts/Momento.sol#71) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#53-55)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#61-64)
setMarketingAddress(address) should be declared external:
- Momento.setMarketingAddress(address) (contracts/Momento.sol#191-193)
setStakingAddress(address) should be declared external:
- Momento.setStakingAddress(address) (contracts/Momento.sol#195-197)
name() should be declared external:
- Momento.name() (contracts/Momento.sol#199-201)
symbol() should be declared external:
- Momento.symbol() (contracts/Momento.sol#203-205)
decimals() should be declared external:
- Momento.decimals() (contracts/Momento.sol#207-209)
totalSupply() should be declared external:
- Momento.totalSupply() (contracts/Momento.sol#211-213)
transfer(address,uint256) should be declared external:
- Momento.transfer(address,uint256) (contracts/Momento.sol#220-227)
allowance(address,address) should be declared external:
- Momento.allowance(address,address) (contracts/Momento.sol#229-236)
approve(address,uint256) should be declared external:
- Momento.approve(address,uint256) (contracts/Momento.sol#238-245)
transferFrom(address,address,uint256) should be declared external:
- Momento.transferFrom(address,address,uint256) (contracts/Momento.sol#247-255)
increaseAllowance(address,uint256) should be declared external:
- Momento.increaseAllowance(address,uint256) (contracts/Momento.sol#257-268)
decreaseAllowance(address,uint256) should be declared external:
- Momento.decreaseAllowance(address,uint256) (contracts/Momento.sol#270-281)
isExcludedFromReward(address) should be declared external:
- Momento.isExcludedFromReward(address) (contracts/Momento.sol#283-285)
totalFees() should be declared external:
- Momento.totalFees() (contracts/Momento.sol#287-289)
deliver(uint256) should be declared external:
- Momento.deliver(uint256) (contracts/Momento.sol#291-301)
reflectionFromToken(uint256,bool) should be declared external:
- Momento.reflectionFromToken(uint256,bool) (contracts/Momento.sol#303-316)
excludeFromReward(address) should be declared external:
- Momento.excludeFromReward(address) (contracts/Momento.sol#324-341)
setSwapAndLiquifyEnabled(bool) should be declared external:
- Momento.setSwapAndLiquifyEnabled(bool) (contracts/Momento.sol#378-381)
isExcludedFromFee(address) should be declared external:
- Momento.isExcludedFromFee(address) (contracts/Momento.sol#383-385)
excludeFromFee(address) should be declared external:
- Momento.excludeFromFee(address) (contracts/Momento.sol#387-389)
includeInFee(address) should be declared external:
- Momento.includeInFee(address) (contracts/Momento.sol#391-393)
isUniswapV2PairAddress(address) should be declared external:
- Momento.isUniswapV2PairAddress(address) (contracts/Momento.sol#481-483)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:
Link to contract code of Momento logo


Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.


Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.


Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.


Average 30d PancakeSwap liquidity is low.


Number of Binance Smart Chain (BSC) token holders is low.

Contract has 10% buy tax and 9% sell tax.
Taxes are low and contract ownership is renounced.


Unable to find Youtube account


Unable to find Discord account


Unable to find token/project description on the website or on BscScan, CoinMarketCap


Unable to find whitepaper link on the website


Unable to find code repository for the project


Young tokens have high risks of scam / price dump / death


Alexa traffic rank is relatively low

Additional information: link


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death


Token has relatively low CoinMarketCap rank

Price for MOMENTO

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