Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Contract ticker (Crypto Cat) 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.
Address.isContract(address) (#69-78) uses assembly
- INLINE ASM (#76)
Address._functionCallWithValue(address,bytes,uint256,string) (#105-126) uses assembly
- INLINE ASM (#118-121)
Do not use evm assembly.
Additional information: link
ERC20.constructor(string,string,uint256,address).name (#178) shadows:
- ERC20.name() (#186-188) (function)
ERC20.constructor(string,string,uint256,address).symbol (#178) shadows:
- ERC20.symbol() (#190-192) (function)
Rename the local variables that shadow another component.
Additional information: link
ERC20.constructor(string,string,uint256,address).owner (#178) lacks a zero-check on :
- _address0 = owner (#182)
- _address1 = owner (#183)
ERC20.ints(address).addressn (#213) lacks a zero-check on :
- _address1 = addressn (#214)
Check that the address is not zero.
Additional information: link
Address._functionCallWithValue(address,bytes,uint256,string) (#105-126) is never used and should be removed
Address.functionCall(address,bytes) (#88-90) is never used and should be removed
Address.functionCall(address,bytes,string) (#92-94) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#96-98) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#100-103) is never used and should be removed
Address.isContract(address) (#69-78) is never used and should be removed
Address.sendValue(address,uint256) (#80-86) is never used and should be removed
Context._msgData() (#136-139) is never used and should be removed
ERC20._Erc20Token(address,address,uint256) (#289) is never used and should be removed
ERC20._burn(address,uint256) (#259-265) is never used and should be removed
ERC20._setupDecimals(uint8) (#284-286) is never used and should be removed
SafeMath.div(uint256,uint256) (#44-46) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#48-55) is never used and should be removed
SafeMath.mod(uint256,uint256) (#57-59) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#61-64) is never used and should be removed
SafeMath.mul(uint256,uint256) (#33-42) is never used and should be removed
SafeMath.sub(uint256,uint256) (#22-24) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version^0.6.0 (#13) allows old versions
solc-0.6.6 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.sendValue(address,uint256) (#80-86):
- (success) = recipient.call{value: amount}() (#84)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#105-126):
- (success,returndata) = target.call{value: weiValue}(data) (#109)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Parameter ERC20.multiaddress(uint8,address[],uint256[]).AllowN (#266) is not in mixedCase
Function ERC20._Erc20Token(address,address,uint256) (#289) is not in mixedCase
Variable ERC20._Addressint (#175) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#137)" inContext (#129-140)
Remove redundant statements if they congest code but offer no value.
Additional information: link
ERC20._router (#168) should be constant
ERC20._valuehash (#177) should be constant
ERC20._zero (#176) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
name() should be declared external:
- ERC20.name() (#186-188)
symbol() should be declared external:
- ERC20.symbol() (#190-192)
decimals() should be declared external:
- ERC20.decimals() (#194-196)
totalSupply() should be declared external:
- ERC20.totalSupply() (#199-201)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (#204-206)
ints(address) should be declared external:
- ERC20.ints(address) (#213-215)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#216-218)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#221-224)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#226-230)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#232-235)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#236-239)
multiaddress(uint8,address[],uint256[]) should be declared external:
- ERC20.multiaddress(uint8,address[],uint256[]) (#266-276)
Use the external attribute for functions never called from the contract.
Additional information: link
Unable to find website, listings and other project-related information
Young tokens have high risks of scam / price dump / death
Token has no active CoinGecko listing / rank
Token has no active CoinMarketCap listing / rank
Unable to find Telegram and Twitter accounts