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About ZION
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ZionTopia will act as a tokenized decentralised VR Crypto Underground world powered by the BNB CHAIN
The ZionTopia Metaverse will work as a real estate and present shops that can be purchased, sold or governed by the ZION token holders
The native token of ZionTopia is $ZION and people who lives in this underground city will be known as Ziontopians
ZionTopia is a underground city made up by 3 bloks of 21 levels
ZionTopia act as a central hub and welcome all levels of crypto experience. Also users can access to crypto information and immersive content at the ZionTopia
ZionTopia's large user base will allow to monetisation through sponsorship and advertising and also it provides an opportunity to share in revenue generation via an NFT mechanism.
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Laser Scorebeta Last Audit: 18 June 2022
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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Contract ownership is not renounced (belongs to a wallet)
CoinToken.constructor(string,string,uint256,uint256,address,address).tokenOwner (#234) lacks a zero-check on :
- owner = tokenOwner (#240)
CoinToken.constructor(string,string,uint256,uint256,address,address).service (#234) lacks a zero-check on :
- service.transfer(msg.value) (#241)
Check that the address is not zero.
Additional information: link
StandardToken.transfer(address,uint256) (#125-135) compares to a boolean constant:
-require(bool)(tokenBlacklist[msg.sender] == false) (#126)
StandardToken.transferFrom(address,address,uint256) (#142-153) compares to a boolean constant:
-require(bool)(tokenBlacklist[msg.sender] == false) (#143)
Remove the equality to the boolean constant.
Additional information: link
SafeMath.div(uint256,uint256) (#13-18) is never used and should be removed
SafeMath.mul(uint256,uint256) (#4-11) is never used and should be removed
Remove unused functions.
Additional information: link
Reentrancy in CoinToken.constructor(string,string,uint256,uint256,address,address) (#234-243):
External calls:
- service.transfer(msg.value) (#241)
Event emitted after the call(s):
- Transfer(address(0),tokenOwner,totalSupply) (#242)
Apply the check-effects-interactions pattern.
Additional information: link
Parameter StandardToken.transfer(address,uint256)._to (#125) is not in mixedCase
Parameter StandardToken.transfer(address,uint256)._value (#125) is not in mixedCase
Parameter StandardToken.balanceOf(address)._owner (#138) is not in mixedCase
Parameter StandardToken.transferFrom(address,address,uint256)._from (#142) is not in mixedCase
Parameter StandardToken.transferFrom(address,address,uint256)._to (#142) is not in mixedCase
Parameter StandardToken.transferFrom(address,address,uint256)._value (#142) is not in mixedCase
Parameter StandardToken.approve(address,uint256)._spender (#156) is not in mixedCase
Parameter StandardToken.approve(address,uint256)._value (#156) is not in mixedCase
Parameter StandardToken.allowance(address,address)._owner (#163) is not in mixedCase
Parameter StandardToken.allowance(address,address)._spender (#163) is not in mixedCase
Parameter StandardToken.increaseApproval(address,uint256)._spender (#168) is not in mixedCase
Parameter StandardToken.increaseApproval(address,uint256)._addedValue (#168) is not in mixedCase
Parameter StandardToken.decreaseApproval(address,uint256)._spender (#174) is not in mixedCase
Parameter StandardToken.decreaseApproval(address,uint256)._subtractedValue (#174) is not in mixedCase
Parameter PausableToken.transfer(address,uint256)._to (#200) is not in mixedCase
Parameter PausableToken.transfer(address,uint256)._value (#200) is not in mixedCase
Parameter PausableToken.transferFrom(address,address,uint256)._from (#204) is not in mixedCase
Parameter PausableToken.transferFrom(address,address,uint256)._to (#204) is not in mixedCase
Parameter PausableToken.transferFrom(address,address,uint256)._value (#204) is not in mixedCase
Parameter PausableToken.approve(address,uint256)._spender (#208) is not in mixedCase
Parameter PausableToken.approve(address,uint256)._value (#208) is not in mixedCase
Parameter PausableToken.increaseApproval(address,uint256)._spender (#212) is not in mixedCase
Parameter PausableToken.increaseApproval(address,uint256)._addedValue (#212) is not in mixedCase
Parameter PausableToken.decreaseApproval(address,uint256)._spender (#216) is not in mixedCase
Parameter PausableToken.decreaseApproval(address,uint256)._subtractedValue (#216) is not in mixedCase
Parameter CoinToken.burn(uint256)._value (#245) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#51-55)
pause() should be declared external:
- Pausable.pause() (#85-88)
unpause() should be declared external:
- Pausable.unpause() (#93-96)
balanceOf(address) should be declared external:
- ERC20Basic.balanceOf(address) (#101)
- StandardToken.balanceOf(address) (#138-140)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#107)
- StandardToken.allowance(address,address) (#163-165)
blackListAddress(address,bool) should be declared external:
- PausableToken.blackListAddress(address,bool) (#220-222)
burn(uint256) should be declared external:
- CoinToken.burn(uint256) (#245-247)
mint(address,uint256) should be declared external:
- CoinToken.mint(address,uint256) (#257-263)
Use the external attribute for functions never called from the contract.
Additional information: link
Pragma version^0.4.24 (#1) allows old versions
solc-0.4.24 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
Token is deployed only at one blockchain
Token has only one trading pair
Young tokens have high risks of price dump / death
Young tokens have high risks of scam / price dump / death
Young tokens have high risks of scam / price dump / death
Young tokens have high risks of price dump / death
Token has relatively low CoinGecko rank
Young tokens have high risks of price dump / death
Price for ZION
LASER DESK beta
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