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OLE [OleCoin] Token

About OLE

Listings

Token 18 months
CoinMarketCap 17 months
white paper

Olecoin is a BEP 20 token leading the launching of the first Brazilian platform to tokenize soccer players future receives. New talents could create their profiles, we use real scouts to validate their informations and once it is approved we create their tokens promoting to our community and with investors. Tokens could be NFT, DeFi or ERC-20. We use the right technology according to the commercial contract signed with the new talent. Our range of business include good connections with the biggest clubs in the world. Olecoin has full potential to be one of the best sports blockchain projects

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Laser Scorebeta Last Audit: 30 November 2021

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

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

Reentrancy in OlecoinToken._transfer(address,address,uint256) (#1002-1046):
External calls:
- swapAndLiquify(contractTokenBalance) (#1033)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1094-1101)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1080-1086)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1033)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1094-1101)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1045)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#958)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1136)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1127)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#874)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1128)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1147)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1138)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1148)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#876)
- _tokenTransfer(from,to,amount,takeFee) (#1045)
- _rTotal = _rTotal.sub(rFee) (#913)
- _tokenTransfer(from,to,amount,takeFee) (#1045)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#960)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1146)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#873)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1137)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#875)
Apply the check-effects-interactions pattern.

Additional information: link

OlecoinToken.slitherConstructorVariables() (#693-1158) performs a multiplication on the result of a division:
-numTokensSellToAddToLiquidity = (10000 / 2000) * 10 ** 6 * 10 ** 9 (#728)
Consider ordering multiplication before division.

Additional information: link

OlecoinToken.addLiquidity(uint256,uint256) (#1089-1102) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1094-1101)
Ensure that all the return values of the function calls are used.

Additional information: link

OlecoinToken._approve(address,address,uint256).owner (#994) shadows:
- Ownable.owner() (#424-426) (function)
Rename the local variables that shadow another component.

Additional information: link

OlecoinToken.setMaxTxPercent(uint256) (#898-902) should emit an event for:
- _maxTxAmount = _tTotal.mul(maxTxPercent).div(10 ** 2) (#899-901)
Emit an event for critical parameter changes.

Additional information: link

Reentrancy in OlecoinToken.transferFrom(address,address,uint256) (#799-803):
External calls:
- _transfer(sender,recipient,amount) (#800)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1094-1101)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1080-1086)
External calls sending eth:
- _transfer(sender,recipient,amount) (#800)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1094-1101)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#801)
- _allowances[owner][spender] = amount (#998)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in OlecoinToken.transferFrom(address,address,uint256) (#799-803):
External calls:
- _transfer(sender,recipient,amount) (#800)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1094-1101)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1080-1086)
External calls sending eth:
- _transfer(sender,recipient,amount) (#800)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1094-1101)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#999)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#801)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#471-476) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#473)
Avoid relying on block.timestamp.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#369-390) uses assembly
- INLINE ASM (#382-385)
Do not use evm assembly.

Additional information: link

SafeMath.mod(uint256,uint256,string) (#237-240) is never used and should be removed
Remove unused functions.

Additional information: link

OlecoinToken._previousLiquidityFee (#719) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
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

Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#369-390):
- (success,returndata) = target.call{value: weiValue}(data) (#373)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable OlecoinToken._maxTxAmount (#727) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#249)" inContext (#243-252)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable OlecoinToken._transferStandard(address,address,uint256).rTransferAmount (#1126) is too similar to OlecoinToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1145)
Prevent variables from having similar names.

Additional information: link

OlecoinToken.numTokensSellToAddToLiquidity (#728) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

isExcludedFromFee(address) should be declared external:
- OlecoinToken.isExcludedFromFee(address) (#990-992)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


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


Token is deployed only at one blockchain


Token has only one trading pair


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute volume.


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


Twitter account link seems to be invalid


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


Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap

Additional information: link


Unable to find token contract audit


Unable to find audit link on the website


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


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


Token has no active CoinMarketCap listing / rank


Token has a considerable age, but social accounts / website are missing or have few users


Token has a considerable age, but average PancakeSwap 30d trading volume is low


Young tokens have high risks of price dump / death


Token has relatively low CoinGecko rank

Price for OLE