Coin of Nature (CON) is a community-based project that was launched at the beginning of July 2021. Due to the type of the project Due to the type of this project, the timeline is based on the number of holders rather than dates. The detailed roadmap can be found on the official website.
The major aim of the project is not only to promote sports and a healthy lifestyle but also to develop a sustainable ecosystem based on innovative solutions. The project focuses on using the latest technologies and applying them in the Blockchain.
During the first stage of the project, the CON token has been developed. The token is deflationary and based on BSC20 network. It is also worth noting that 5% of each completed transaction is distributed among all holders, while another 5% goes to the liquidity pool.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Reentrancy in CoinofNature._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) (#1127)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1136)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1147)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#874)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1128)
- _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
CoinofNature.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
CoinofNature._approve(address,address,uint256).owner (#994) shadows:
- Ownable.owner() (#426-428) (function)
Rename the local variables that shadow another component.
Additional information: link
CoinofNature.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 CoinofNature.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 CoinofNature.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() (#473-478) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#475)
Avoid relying on block.timestamp.
Additional information: link
Address._functionCallWithValue(address,bytes,uint256,string) (#371-392) uses assembly
- INLINE ASM (#384-387)
Do not use evm assembly.
Additional information: link
SafeMath.mod(uint256,uint256,string) (#239-242) is never used and should be removed
Remove unused functions.
Additional information: link
CoinofNature._previousLiquidityFee (#721) 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) (#371-392):
- (success,returndata) = target.call{value: weiValue}(data) (#375)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Variable CoinofNature._maxTxAmount (#729) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#251)" inContext (#245-254)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Variable CoinofNature._transferBothExcluded(address,address,uint256).rTransferAmount (#872) is too similar to CoinofNature._transferStandard(address,address,uint256).tTransferAmount (#1126)
Prevent variables from having similar names.
Additional information: link
CoinofNature.slitherConstructorVariables() (#695-1158) uses literals with too many digits:
- numTokensSellToAddToLiquidity = 500000 * 10 ** 6 * 10 ** 9 (#730)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
CoinofNature.numTokensSellToAddToLiquidity (#730) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
isExcludedFromFee(address) should be declared external:
- CoinofNature.isExcludedFromFee(address) (#990-992)
Use the external attribute for functions never called from the contract.
Additional information: link
Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.
Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.
Token is deployed only at one blockchain
Unable to find PancakeSwap trading pair to compute liquidity.
Unable to find PancakeSwap trading pair to compute number of swaps.
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
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
Young tokens have high risks of scam / price dump / death
Young tokens have high risks of scam / price dump / death
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
Young tokens have high risks of price dump / death
Token has relatively low CoinGecko rank
Token has relatively low CoinMarketCap rank
Twitter account link seems to be invalid
Unable to find Youtube account