5KM is a Web3 lifestyle APP & Community
We aim to create a decentralized sports community, encouraging people to love sports, enjoy a healthy lifestyle, or go out and be a plogger for environmental protection.
5KM has a built-in Game-fi to improve people's lifestyles following the core concept of rewarding sports persons. In the app, users can wear NFTs of sports equipment such as sneakers to earn relevant token incentives by walking, jogging, running in groups, etc.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Contract ownership is not renounced (belongs to a wallet)
Variable 'ECDSA.tryRecover(bytes32,bytes).r (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#62)' in ECDSA.tryRecover(bytes32,bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#57-86) potentially used before declaration: r = mload(uint256)(signature + 0x20) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#79)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.
Additional information: link
ERC20Permit.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#41-60) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= deadline,ERC20Permit: expired deadline) (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#50)
Avoid relying on block.timestamp.
Additional information: link
ECDSA.tryRecover(bytes32,bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#57-86) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#67-71)
- INLINE ASM (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#78-81)
Do not use evm assembly.
Additional information: link
Different versions of Solidity is used:
- Version used: ['^0.8.0', '^0.8.4']
- ^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/Counters.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/Strings.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#4)
- ^0.8.4 (contracts/FiveKMKMT.sol#2)
Use one Solidity version.
Additional information: link
Context._msgData() (@openzeppelin/contracts/utils/Context.sol#21-23) is never used and should be removed
Counters.decrement(Counters.Counter) (@openzeppelin/contracts/utils/Counters.sol#32-38) is never used and should be removed
Counters.reset(Counters.Counter) (@openzeppelin/contracts/utils/Counters.sol#40-42) is never used and should be removed
ECDSA.recover(bytes32,bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#102-106) is never used and should be removed
ECDSA.recover(bytes32,bytes32,bytes32) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#130-138) is never used and should be removed
ECDSA.toEthSignedMessageHash(bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#214-216) is never used and should be removed
ECDSA.toEthSignedMessageHash(bytes32) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#200-204) is never used and should be removed
ECDSA.tryRecover(bytes32,bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#57-86) is never used and should be removed
ECDSA.tryRecover(bytes32,bytes32,bytes32) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#115-123) is never used and should be removed
Strings.toHexString(uint256) (@openzeppelin/contracts/utils/Strings.sol#40-51) is never used and should be removed
Strings.toHexString(uint256,uint256) (@openzeppelin/contracts/utils/Strings.sol#56-66) is never used and should be removed
Strings.toString(uint256) (@openzeppelin/contracts/utils/Strings.sol#15-35) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Context.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Counters.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Strings.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#4) 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 ERC20Permit.DOMAIN_SEPARATOR() (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#73-75) is not in mixedCase
Variable ERC20Permit._PERMIT_TYPEHASH (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#28-29) is not in mixedCase
Function IERC20Permit.DOMAIN_SEPARATOR() (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#59) is not in mixedCase
Variable EIP712._CACHED_DOMAIN_SEPARATOR (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#31) is not in mixedCase
Variable EIP712._CACHED_CHAIN_ID (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#32) is not in mixedCase
Variable EIP712._CACHED_THIS (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#33) is not in mixedCase
Variable EIP712._HASHED_NAME (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#35) is not in mixedCase
Variable EIP712._HASHED_VERSION (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#36) is not in mixedCase
Variable EIP712._TYPE_HASH (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#37) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
FiveKMKMT.constructor() (contracts/FiveKMKMT.sol#10-12) uses literals with too many digits:
- _mint(msg.sender,50000000 * 10 ** decimals()) (contracts/FiveKMKMT.sol#11)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#54-56)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#62-65)
name() should be declared external:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#62-64)
symbol() should be declared external:
- ERC20.symbol() (@openzeppelin/contracts/token/ERC20/ERC20.sol#70-72)
totalSupply() should be declared external:
- ERC20.totalSupply() (@openzeppelin/contracts/token/ERC20/ERC20.sol#94-96)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (@openzeppelin/contracts/token/ERC20/ERC20.sol#101-103)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#113-117)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#136-140)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#158-167)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#181-185)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#201-210)
burn(uint256) should be declared external:
- ERC20Burnable.burn(uint256) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol#20-22)
burnFrom(address,uint256) should be declared external:
- ERC20Burnable.burnFrom(address,uint256) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol#35-38)
permit(address,address,uint256,uint256,uint8,bytes32,bytes32) should be declared external:
- ERC20Permit.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#41-60)
nonces(address) should be declared external:
- ERC20Permit.nonces(address) (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#65-67)
mint(address,uint256) should be declared external:
- FiveKMKMT.mint(address,uint256) (contracts/FiveKMKMT.sol#14-16)
Use the external attribute for functions never called from the contract.
Additional information: link
ERC20Permit.constructor(string).name (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#36) shadows:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#62-64) (function)
- IERC20Metadata.name() (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#17) (function)
Rename the local variables that shadow another component.
Additional information: link
Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.
Average 30d number of PancakeSwap swaps is low.
Average PancakeSwap trading volume, liqudity, number of swaps are low. Token seems to be inactive.
Average 30d PancakeSwap liquidity is low.
Number of Binance Smart Chain (BSC) token holders is low.
Token is deployed only at one blockchain
Token has only one trading pair
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token on CoinGecko
Additional information: link
Unable to find token on CoinMarketCap
Additional information: link
Unable to find KYC or doxxing proof
Unable to find token contract audit
Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)
Unable to verify token contract address on the website
Unable to find audit link on the website
Unable to find whitepaper link on the website
Token is not listed at Mobula.Finance
Additional information: link
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
Token has no active CoinGecko listing / rank
Token has no active CoinMarketCap listing / rank
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Unable to find Blog account (Reddit or Medium)
Unable to find Youtube account