Manga token Token Logo

$MANGA [Manga] Token

About $MANGA

Listings

Token 16 months
CoinGecko 15 months
CoinMarketCap 15 months
white paper

Manga Token is a reward, payment and staking token for the manga industry to facilitate supporting your favourite manga artists through a new form of digital merchandise called Manga NFTs and we are building the world largest Manga NFT marketplace for authentic manga collectibles from original manga artists.

Laser Scorebeta Last Audit: 8 December 2022

report
Token seems to be (relatively) fine. It still become a scam, but probability is moderate.

MangaToken._writeCheckpoint(address,uint32,uint256,uint256) (contracts/MangaToken.sol#215-233) uses a dangerous strict equality:
- nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber (contracts/MangaToken.sol#225)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link


Contract ownership is not renounced (belongs to a wallet)

SafeMath.mul(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#116-121) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#60-63) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#70-73) is never used and should be removed
BEP20._burnFrom(address,uint256) (contracts/libs/BEP20.sol#292-295) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#24-28) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (@openzeppelin/contracts/math/SafeMath.sol#210-213) is never used and should be removed
SafeMath.div(uint256,uint256,string) (@openzeppelin/contracts/math/SafeMath.sol#190-193) is never used and should be removed
Context._msgData() (@openzeppelin/contracts/utils/Context.sol#20-23) is never used and should be removed
SafeMath.mod(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#152-155) is never used and should be removed
SafeMath.div(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#135-138) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#45-53) is never used and should be removed
SafeMath.trySub(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#35-38) is never used and should be removed
Remove unused functions.

Additional information: link

BEP20.allowance(address,address).owner (contracts/libs/BEP20.sol#119) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#35-37) (function)
BEP20.constructor(string,string).symbol (contracts/libs/BEP20.sol#54) shadows:
- BEP20.symbol() (contracts/libs/BEP20.sol#78-80) (function)
- IBEP20.symbol() (contracts/libs/IBEP20.sol#17) (function)
BEP20._approve(address,address,uint256).owner (contracts/libs/BEP20.sol#278) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#35-37) (function)
BEP20.constructor(string,string).name (contracts/libs/BEP20.sol#54) shadows:
- BEP20.name() (contracts/libs/BEP20.sol#70-72) (function)
- IBEP20.name() (contracts/libs/IBEP20.sol#22) (function)
Rename the local variables that shadow another component.

Additional information: link

MangaToken.delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32) (contracts/MangaToken.sol#81-122) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now <= expiry,MangaToken::delegateBySig: signature expired) (contracts/MangaToken.sol#120)
Avoid relying on block.timestamp.

Additional information: link

MangaToken.getChainId() (contracts/MangaToken.sol#240-244) uses assembly
- INLINE ASM (contracts/MangaToken.sol#242)
Do not use evm assembly.

Additional information: link

Different versions of Solidity are used:
- Version used: ['0.6.12', '>=0.4.0', '>=0.6.0<0.8.0', '>=0.6.4']
- >=0.6.0<0.8.0 (@openzeppelin/contracts/GSN/Context.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/math/SafeMath.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- 0.6.12 (contracts/MangaToken.sol#1)
- >=0.4.0 (contracts/libs/BEP20.sol#1)
- >=0.6.4 (contracts/libs/IBEP20.sol#1)
Use one Solidity version.

Additional information: link

Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/math/SafeMath.sol#3) is too complex
Pragma version>=0.6.4 (contracts/libs/IBEP20.sol#1) allows old versions
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/GSN/Context.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Context.sol#3) is too complex
Pragma version>=0.4.0 (contracts/libs/BEP20.sol#1) 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

Parameter MangaToken.mint(address,uint256)._amount (contracts/MangaToken.sol#8) is not in mixedCase
Parameter MangaToken.mint(address,uint256)._to (contracts/MangaToken.sol#8) is not in mixedCase
Variable MangaToken._delegates (contracts/MangaToken.sol#23) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (@openzeppelin/contracts/utils/Context.sol#21)" inContext (@openzeppelin/contracts/utils/Context.sol#15-24)
Remove redundant statements if they congest code but offer no value.

Additional information: link

transfer(address,uint256) should be declared external:
- BEP20.transfer(address,uint256) (contracts/libs/BEP20.sol#111-114)
symbol() should be declared external:
- BEP20.symbol() (contracts/libs/BEP20.sol#78-80)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#54-57)
mint(address,uint256) should be declared external:
- MangaToken.mint(address,uint256) (contracts/MangaToken.sol#8-11)
approve(address,uint256) should be declared external:
- BEP20.approve(address,uint256) (contracts/libs/BEP20.sol#130-133)
transferFrom(address,address,uint256) should be declared external:
- BEP20.transferFrom(address,address,uint256) (contracts/libs/BEP20.sol#147-155)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#63-67)
mint(uint256) should be declared external:
- BEP20.mint(uint256) (contracts/libs/BEP20.sol#201-204)
allowance(address,address) should be declared external:
- BEP20.allowance(address,address) (contracts/libs/BEP20.sol#119-121)
totalSupply() should be declared external:
- BEP20.totalSupply() (contracts/libs/BEP20.sol#92-94)
decimals() should be declared external:
- BEP20.decimals() (contracts/libs/BEP20.sol#85-87)
increaseAllowance(address,uint256) should be declared external:
- BEP20.increaseAllowance(address,uint256) (contracts/libs/BEP20.sol#169-172)
decreaseAllowance(address,uint256) should be declared external:
- BEP20.decreaseAllowance(address,uint256) (contracts/libs/BEP20.sol#188-191)
burn(address,uint256) should be declared external:
- MangaToken.burn(address,uint256) (contracts/MangaToken.sol#13-15)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract ticker ($MANGA) 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.

Holders:


Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.


Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.


Token is deployed only at one blockchain


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute number of swaps.

No disclosed threats


Token is not listed at Mobula.Finance

Additional information: link


Unable to find token on CoinHunt

Additional information: link


Token has a considerable age, but average PancakeSwap 30d trading volume is low


Token has relatively low CoinMarketCap rank


Token has relatively low CoinGecko rank

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