GEM [gemstone] Token

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

Contract ownership is not renounced (belongs to a wallet)

Different versions of Solidity is used:
- Version used: ['^0.8.0', '^0.8.4']
- ^0.8.0 (#1)
- ^0.8.0 (#12)
- ^0.8.0 (#40)
- ^0.8.0 (#55)
- ^0.8.0 (#61)
- ^0.8.4 (#211)
Use one Solidity version.

Additional information: link

Context._msgData() (#8-10) is never used and should be removed
ERC20._burn(address,uint256) (#160-175) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.8.0 (#1) allows old versions
Pragma version^0.8.0 (#12) allows old versions
Pragma version^0.8.0 (#40) allows old versions
Pragma version^0.8.0 (#55) allows old versions
Pragma version^0.8.0 (#61) 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

Gemstone.constructor() (#213-215) uses literals with too many digits:
- _mint(msg.sender,3000000 * 10 ** decimals()) (#214)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#27-29)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#30-33)
name() should be declared external:
- ERC20.name() (#75-77)
symbol() should be declared external:
- ERC20.symbol() (#78-80)
totalSupply() should be declared external:
- ERC20.totalSupply() (#84-86)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (#87-89)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#90-94)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#98-102)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#103-112)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#113-117)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#118-127)
mint(address,uint256) should be declared external:
- Gemstone.mint(address,uint256) (#217-219)
Use the external attribute for functions never called from the contract.

Additional information: link

Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

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