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Metaverse.Pro is the Metaverse Reserve System and $Meta will be the Reserve Currency for the Metaverse and GameFi. This is a fork of OHM on the BSC network, with a focus on the Metaverse and gamification. MetaversePRO is a fair, community-governed, financial infrastructure for the Metaverse that allows for stable and dependable growth. We have chosen to operate on Binance Smart Chain because we believe BSC represents the optimal intersection between the real world and the Metaverse. Plus, the Metaverse on BSC is currently experiencing phenomenal growth, from artworks, to GameFi, to DeFi. All areas are seeing an explosion of innovation. MetaversePRO is committed to building a fair token-issuing institution and to having META accepted across the Metaverse. Just as DeFi requires an infrastructure, MetaversePRO will serve this role for GameFi.
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Laser Scorebeta Last Audit: 2 March 2022
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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Different versions of Solidity is used:
- Version used: ['0.7.5', '>=0.6.0<0.8.0']
- >=0.6.0<0.8.0 (@openzeppelin/contracts/math/SafeMath.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Counters.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/utils/EnumerableSet.sol#3)
- 0.7.5 (contracts/MetaERC20Token.sol#2)
- >=0.6.0<0.8.0 (contracts/libs/Context.sol#3)
- 0.7.5 (contracts/libs/ERC20.sol#3)
- 0.7.5 (contracts/libs/ERC20Permit.sol#2)
- 0.7.5 (contracts/libs/IERC20.sol#3)
- >=0.6.0<0.8.0 (contracts/libs/Ownable.sol#3)
- 0.7.5 (contracts/libs/TWAPOracleUpdater.sol#2)
- 0.7.5 (contracts/libs/VaultOwned.sol#2)
- 0.7.5 (contracts/libs/interface/IERC2612Permit.sol#2)
- 0.7.5 (contracts/libs/interface/ITWAPOracle.sol#2)
Use one Solidity version.
Additional information: link
TWAPOracleUpdater._uodateTWAPOracle(address,uint256) (contracts/libs/TWAPOracleUpdater.sol#55-59) ignores return value by twapOracle.updateTWAP(dexPoolToUpdateFrom_,twapEpochPeriodToUpdate_) (contracts/libs/TWAPOracleUpdater.sol#57)
Ensure that all the return values of the function calls are used.
Additional information: link
VaultOwned.setVault(address) (contracts/libs/VaultOwned.sol#10-14) should emit an event for:
- _vault = vault_ (contracts/libs/VaultOwned.sol#11)
Emit an event for critical parameter changes.
Additional information: link
VaultOwned.setVault(address).vault_ (contracts/libs/VaultOwned.sol#10) lacks a zero-check on :
- _vault = vault_ (contracts/libs/VaultOwned.sol#11)
Check that the address is not zero.
Additional information: link
ERC20Permit.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (contracts/libs/ERC20Permit.sol#36-57) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= deadline,Permit: expired deadline) (contracts/libs/ERC20Permit.sol#45)
Avoid relying on block.timestamp.
Additional information: link
ERC20Permit.constructor() (contracts/libs/ERC20Permit.sol#19-34) uses assembly
- INLINE ASM (contracts/libs/ERC20Permit.sol#21-23)
Do not use evm assembly.
Additional information: link
Context._msgData() (contracts/libs/Context.sol#20-23) is never used and should be removed
Counters.decrement(Counters.Counter) (@openzeppelin/contracts/utils/Counters.sol#37-39) is never used and should be removed
ERC20._beforeTokenTransfer(address,address,uint256) (contracts/libs/ERC20.sol#305) is never used and should be removed
EnumerableSet._at(EnumerableSet.Set,uint256) (@openzeppelin/contracts/utils/EnumerableSet.sol#130-133) is never used and should be removed
EnumerableSet._length(EnumerableSet.Set) (@openzeppelin/contracts/utils/EnumerableSet.sol#116-118) is never used and should be removed
EnumerableSet.add(EnumerableSet.Bytes32Set,bytes32) (@openzeppelin/contracts/utils/EnumerableSet.sol#147-149) is never used and should be removed
EnumerableSet.add(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/EnumerableSet.sol#256-258) is never used and should be removed
EnumerableSet.at(EnumerableSet.AddressSet,uint256) (@openzeppelin/contracts/utils/EnumerableSet.sol#239-241) is never used and should be removed
EnumerableSet.at(EnumerableSet.Bytes32Set,uint256) (@openzeppelin/contracts/utils/EnumerableSet.sol#185-187) is never used and should be removed
EnumerableSet.at(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/EnumerableSet.sol#294-296) is never used and should be removed
EnumerableSet.contains(EnumerableSet.Bytes32Set,bytes32) (@openzeppelin/contracts/utils/EnumerableSet.sol#164-166) is never used and should be removed
EnumerableSet.contains(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/EnumerableSet.sol#273-275) is never used and should be removed
EnumerableSet.length(EnumerableSet.AddressSet) (@openzeppelin/contracts/utils/EnumerableSet.sol#225-227) is never used and should be removed
EnumerableSet.length(EnumerableSet.Bytes32Set) (@openzeppelin/contracts/utils/EnumerableSet.sol#171-173) is never used and should be removed
EnumerableSet.length(EnumerableSet.UintSet) (@openzeppelin/contracts/utils/EnumerableSet.sol#280-282) is never used and should be removed
EnumerableSet.remove(EnumerableSet.Bytes32Set,bytes32) (@openzeppelin/contracts/utils/EnumerableSet.sol#157-159) is never used and should be removed
EnumerableSet.remove(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/EnumerableSet.sol#266-268) is never used and should be removed
SafeMath.add(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#29-34) is never used and should be removed
SafeMath.average(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#198-201) is never used and should be removed
SafeMath.bondingCurve(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#207-209) is never used and should be removed
SafeMath.div(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#103-105) is never used and should be removed
SafeMath.div(uint256,uint256,string) (@openzeppelin/contracts/math/SafeMath.sol#119-125) is never used and should be removed
SafeMath.mod(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#139-141) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (@openzeppelin/contracts/math/SafeMath.sol#155-158) is never used and should be removed
SafeMath.mul(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#77-89) is never used and should be removed
SafeMath.percentageAmount(uint256,uint8) (@openzeppelin/contracts/math/SafeMath.sol#178-180) is never used and should be removed
SafeMath.percentageOfTotal(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#189-191) is never used and should be removed
SafeMath.quadraticPricing(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#203-205) is never used and should be removed
SafeMath.sqrrt(uint256) (@openzeppelin/contracts/math/SafeMath.sol#162-173) is never used and should be removed
SafeMath.sub(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#46-48) is never used and should be removed
SafeMath.substractPercentage(uint256,uint8) (@openzeppelin/contracts/math/SafeMath.sol#185-187) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/math/SafeMath.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Counters.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/utils/EnumerableSet.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (contracts/libs/Context.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (contracts/libs/Ownable.sol#3) is too complex
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 MetaERC20Token._burnFrom(address,uint256) (contracts/MetaERC20Token.sol#55-64) is not in mixedCase
Variable ERC20._totalSupply (contracts/libs/ERC20.sol#37) is not in mixedCase
Variable ERC20Permit.DOMAIN_SEPARATOR (contracts/libs/ERC20Permit.sol#17) is not in mixedCase
Variable VaultOwned._vault (contracts/libs/VaultOwned.sol#8) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (contracts/libs/Context.sol#21)" inContext (contracts/libs/Context.sol#15-24)
Remove redundant statements if they congest code but offer no value.
Additional information: link
burn(uint256) should be declared external:
- MetaERC20Token.burn(uint256) (contracts/MetaERC20Token.sol#25-27)
burnFrom(address,uint256) should be declared external:
- MetaERC20Token.burnFrom(address,uint256) (contracts/MetaERC20Token.sol#51-53)
symbol() should be declared external:
- ERC20.symbol() (contracts/libs/ERC20.sol#70-72)
decimals() should be declared external:
- ERC20.decimals() (contracts/libs/ERC20.sol#87-89)
totalSupply() should be declared external:
- ERC20.totalSupply() (contracts/libs/ERC20.sol#94-96)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (contracts/libs/ERC20.sol#101-103)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (contracts/libs/ERC20.sol#113-116)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (contracts/libs/ERC20.sol#132-135)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (contracts/libs/ERC20.sol#150-158)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (contracts/libs/ERC20.sol#172-175)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (contracts/libs/ERC20.sol#191-197)
permit(address,address,uint256,uint256,uint8,bytes32,bytes32) should be declared external:
- ERC20Permit.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (contracts/libs/ERC20Permit.sol#36-57)
nonces(address) should be declared external:
- ERC20Permit.nonces(address) (contracts/libs/ERC20Permit.sol#59-61)
owner() should be declared external:
- Ownable.owner() (contracts/libs/Ownable.sol#35-37)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (contracts/libs/Ownable.sol#54-57)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (contracts/libs/Ownable.sol#63-67)
vault() should be declared external:
- VaultOwned.vault() (contracts/libs/VaultOwned.sol#19-21)
Use the external attribute for functions never called from the contract.
Additional information: link
Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.
Average 30d PancakeSwap liquidity is low.
Token is deployed only at one blockchain
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 price dump / death
Young tokens have high risks of scam / price dump / death
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Token has relatively low CoinMarketCap rank
Price for Meta
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Last post in Twitter was more than 30 days ago