Elon's Marvin Token Logo

MARVIN [Elon's Marvin] Token

About MARVIN

Listings

Token 13 months
CoinMarketCap 13 months
[CoinGecko] alert: Elon's Marvin has migrated from the old contract to a new one. Find out more on their Twitter.

Elon’s Marvin token was founded on October 11, 2021. Elon’s Marvin is a brand new token powered by the Binance Smart Chain, and inspired by Elon Musk’s real life Havanese dog, Marvin, that he often talks about on Twitter, including this tweet on October 10, 2021:

“I love ALW! Couldn’t agree more. My dog Marvin is Havanese too, although I’m *his* emotional support human.”

Reflections
2% of each sale will be put into a wallet which will distribute
Marvin rewards to holders.
The more you hold the more you receive.

Liquidity
4% of every transaction will be added to liquidity. This helps keep the floor price of the token high and lessens
the effects of big sells.
Protecting you and the token from whale manipulation.

Marketing
The 2% marketing fee of each transaction ensures the capability of having funds to pay for marketing, listings, donations etc. If needed the Marketing wallet can also burn tokens for an increase in value or add liquidity to pancakeswap.

Social

Laser Scorebeta Last Audit: 30 November 2021

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

Anti-Scam

Links

CoinToken.addLiquidity(uint256,uint256) (#836-846) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#838-845)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in CoinToken._transfer(address,address,uint256) (#775-810):
External calls:
- swapAndLiquify(contractTokenBalance) (#801)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#838-845)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#827-833)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#801)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#838-845)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#809)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#716)
- _rOwned[_devWalletAddress] = _rOwned[_devWalletAddress].add(rDev) (#724)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#880)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#870)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#622)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#892)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#871)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#893)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#882)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#624)
- _tokenTransfer(from,to,amount,takeFee) (#809)
- _rTotal = _rTotal.sub(rFee) (#669)
- _tokenTransfer(from,to,amount,takeFee) (#809)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#718)
- _tOwned[_devWalletAddress] = _tOwned[_devWalletAddress].add(tDev) (#726)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#621)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#891)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#881)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#623)
Apply the check-effects-interactions pattern.

Additional information: link


Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)


Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

CoinToken.constructor(string,string,uint256,uint256,uint256,uint256,uint256,address,address,address) (#476-511) performs a multiplication on the result of a division:
-numTokensSellToAddToLiquidity = (_tTotal * 5 / 10000) * 10 ** _decimals (#490)
Consider ordering multiplication before division.

Additional information: link

CoinToken.addLiquidity(uint256,uint256) (#836-846) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#838-845)
Ensure that all the return values of the function calls are used.

Additional information: link

CoinToken._approve(address,address,uint256).owner (#767) shadows:
- Ownable.owner() (#204-206) (function)
Rename the local variables that shadow another component.

Additional information: link

CoinToken.setNumTokensSellToAddToLiquidity(uint256) (#907-909) should emit an event for:
- numTokensSellToAddToLiquidity = amountToUpdate (#908)
Emit an event for critical parameter changes.

Additional information: link

CoinToken.setDevWalletAddress(address)._addr (#655) lacks a zero-check on :
- _devWalletAddress = _addr (#656)
Check that the address is not zero.

Additional information: link

Reentrancy in CoinToken.transferFrom(address,address,uint256) (#548-552):
External calls:
- _transfer(sender,recipient,amount) (#549)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#838-845)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#827-833)
External calls sending eth:
- _transfer(sender,recipient,amount) (#549)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#838-845)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#550)
- _allowances[owner][spender] = amount (#771)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in CoinToken.transferFrom(address,address,uint256) (#548-552):
External calls:
- _transfer(sender,recipient,amount) (#549)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#838-845)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#827-833)
External calls sending eth:
- _transfer(sender,recipient,amount) (#549)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#838-845)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#772)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#550)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#235-240) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked.) (#237)
Avoid relying on block.timestamp.

Additional information: link

Address._verifyCallResult(bool,bytes,string) (#179-192) uses assembly
- INLINE ASM (#184-187)
Do not use evm assembly.

Additional information: link

SafeMath.trySub(uint256,uint256) (#32-37) is never used and should be removed
Remove unused functions.

Additional information: link

solc-0.8.4 is not recommended for deployment
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

Low level call in Address.functionDelegateCall(address,bytes,string) (#173-177):
- (success,returndata) = target.delegatecall(data) (#175)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable CoinToken._maxTxAmount (#460) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#119)" inContext (#113-122)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable CoinToken._getValues(uint256).rTransferAmount (#675) is too similar to CoinToken._transferFromExcluded(address,address,uint256).tTransferAmount (#890)
Prevent variables from having similar names.

Additional information: link

isExcludedFromFee(address) should be declared external:
- CoinToken.isExcludedFromFee(address) (#763-765)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract name (Elon's Marvin) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.

Holders:


Token has only one trading pair


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute number of swaps.


Twitter account link seems to be invalid


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


Unable to find Discord account


BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link


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


Unable to find token contract audit


Unable to find audit link on the website


Unable to find whitepaper link on the website


Unable to find token on CoinHunt

Additional information: link


Unable to find code repository for the project


Young tokens have high risks of price dump / death


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


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


Young tokens have high risks of price dump / death


Token has relatively low CoinGecko rank


Token has relatively low CoinMarketCap rank

Price for MARVIN