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UCON [YOUCOIN] Token

About UCON

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Token 4 years
CoinGecko 3 years
white paper

YouCoin is an ecosystem that provides reliable and diverse service governance facilities for the Metaverse and Web3. Its ecosystem includes decentralized finance, gaming, social, NFTs and DAOs. YouCoin is an ecosystem built on the SERO chain, and cross-chain with the Ethereum, Binance chain, etc., to easily achieve multi-chain interaction.

UCON is the equity governance token of every ecosystem on the YouCoin Metaverse, and the total supply of UCON is 1,000,000. Through the incentive and burning mechanism of UCON, there will be a long-term upward trend with the closed-loop presentation of YouCoin Metaverse Ecological Finance.

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Laser Scorebeta Last Audit: 16 October 2022

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Token is either risky or in presale. For presale 30+ is a fine score.

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

EnumerableSet.values(EnumerableSet.Bytes32Set) (contracts/utils/structs/EnumerableSet.sol#208-210) is never used and should be removed
AccessControl._setRoleAdmin(bytes32,bytes32) (contracts/access/AccessControl.sol#194-198) is never used and should be removed
EnumerableSet.length(EnumerableSet.Bytes32Set) (contracts/utils/structs/EnumerableSet.sol#182-184) is never used and should be removed
EnumerableSet.at(EnumerableSet.Bytes32Set,uint256) (contracts/utils/structs/EnumerableSet.sol#196-198) is never used and should be removed
EnumerableSet.remove(EnumerableSet.UintSet,uint256) (contracts/utils/structs/EnumerableSet.sol#307-309) is never used and should be removed
EnumerableSet.contains(EnumerableSet.Bytes32Set,bytes32) (contracts/utils/structs/EnumerableSet.sol#175-177) is never used and should be removed
Strings.toHexString(uint256) (contracts/utils/Strings.sol#40-51) is never used and should be removed
EnumerableSet.contains(EnumerableSet.UintSet,uint256) (contracts/utils/structs/EnumerableSet.sol#314-316) is never used and should be removed
EnumerableSet.values(EnumerableSet.AddressSet) (contracts/utils/structs/EnumerableSet.sol#274-283) is never used and should be removed
Strings.toString(uint256) (contracts/utils/Strings.sol#15-35) is never used and should be removed
EnumerableSet.contains(EnumerableSet.AddressSet,address) (contracts/utils/structs/EnumerableSet.sol#241-243) is never used and should be removed
EnumerableSet.add(EnumerableSet.Bytes32Set,bytes32) (contracts/utils/structs/EnumerableSet.sol#158-160) is never used and should be removed
EnumerableSet._values(EnumerableSet.Set) (contracts/utils/structs/EnumerableSet.sol#142-144) is never used and should be removed
EnumerableSet.values(EnumerableSet.UintSet) (contracts/utils/structs/EnumerableSet.sol#347-356) is never used and should be removed
Context._msgData() (contracts/utils/Context.sol#21-23) is never used and should be removed
EnumerableSet.length(EnumerableSet.UintSet) (contracts/utils/structs/EnumerableSet.sol#321-323) is never used and should be removed
EnumerableSet.at(EnumerableSet.UintSet,uint256) (contracts/utils/structs/EnumerableSet.sol#335-337) is never used and should be removed
EnumerableSet.add(EnumerableSet.UintSet,uint256) (contracts/utils/structs/EnumerableSet.sol#297-299) is never used and should be removed
EnumerableSet.remove(EnumerableSet.Bytes32Set,bytes32) (contracts/utils/structs/EnumerableSet.sol#168-170) is never used and should be removed
Remove unused functions.

Additional information: link

AccessControlEnumerable._revokeRole(bytes32,address) (contracts/access/AccessControlEnumerable.sol#60-63) ignores return value by _roleMembers[role].remove(account) (contracts/access/AccessControlEnumerable.sol#62)
AccessControlEnumerable._grantRole(bytes32,address) (contracts/access/AccessControlEnumerable.sol#52-55) ignores return value by _roleMembers[role].add(account) (contracts/access/AccessControlEnumerable.sol#54)
Ensure that all the return values of the function calls are used.

Additional information: link

ERC20PresetMinterPauser.constructor(string,string).name (contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol#36) shadows:
- ERC20.name() (contracts/token/ERC20/ERC20.sol#62-64) (function)
- IERC20Metadata.name() (contracts/token/ERC20/extensions/IERC20Metadata.sol#17) (function)
ERC20PresetMinterPauser.constructor(string,string).symbol (contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol#36) shadows:
- ERC20.symbol() (contracts/token/ERC20/ERC20.sol#70-72) (function)
- IERC20Metadata.symbol() (contracts/token/ERC20/extensions/IERC20Metadata.sol#22) (function)
Rename the local variables that shadow another component.

Additional information: link

EnumerableSet.values(EnumerableSet.UintSet) (contracts/utils/structs/EnumerableSet.sol#347-356) uses assembly
- INLINE ASM (contracts/utils/structs/EnumerableSet.sol#351-353)
EnumerableSet.values(EnumerableSet.AddressSet) (contracts/utils/structs/EnumerableSet.sol#274-283) uses assembly
- INLINE ASM (contracts/utils/structs/EnumerableSet.sol#278-280)
Do not use evm assembly.

Additional information: link

Pragma version^0.8.0 (contracts/token/ERC20/extensions/IERC20Metadata.sol#4) allows old versions
Pragma version^0.8.0 (contracts/utils/introspection/IERC165.sol#4) allows old versions
Pragma version^0.8.0 (contracts/access/AccessControlEnumerable.sol#4) allows old versions
Pragma version^0.8.0 (contracts/access/IAccessControlEnumerable.sol#4) allows old versions
Pragma version^0.8.0 (contracts/token/ERC20/ERC20.sol#4) allows old versions
Pragma version^0.8.0 (contracts/utils/Context.sol#4) allows old versions
Pragma version^0.8.0 (contracts/utils/Strings.sol#4) allows old versions
Pragma version^0.8.0 (contracts/token/ERC20/extensions/ERC20Pausable.sol#4) allows old versions
Pragma version^0.8.0 (contracts/utils/introspection/ERC165.sol#4) allows old versions
Pragma version^0.8.0 (contracts/access/AccessControl.sol#4) allows old versions
solc-0.8.11 is not recommended for deployment
Pragma version^0.8.0 (contracts/token/ERC20/extensions/ERC20Burnable.sol#4) allows old versions
Pragma version^0.8.0 (contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol#4) allows old versions
Pragma version^0.8.0 (contracts/access/IAccessControl.sol#4) allows old versions
Pragma version^0.8.0 (contracts/utils/structs/EnumerableSet.sol#4) allows old versions
Pragma version^0.8.0 (contracts/token/ERC20/IERC20.sol#4) allows old versions
Pragma version^0.8.0 (contracts/security/Pausable.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

transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (contracts/token/ERC20/ERC20.sol#150-164)
burnFrom(address,uint256) should be declared external:
- ERC20Burnable.burnFrom(address,uint256) (contracts/token/ERC20/extensions/ERC20Burnable.sol#35-42)
mint(address,uint256) should be declared external:
- ERC20PresetMinterPauser.mint(address,uint256) (contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol#52-55)
decimals() should be declared external:
- ERC20.decimals() (contracts/token/ERC20/ERC20.sol#87-89)
getRoleMemberCount(bytes32) should be declared external:
- AccessControlEnumerable.getRoleMemberCount(bytes32) (contracts/access/AccessControlEnumerable.sol#45-47)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (contracts/token/ERC20/ERC20.sol#197-205)
symbol() should be declared external:
- ERC20.symbol() (contracts/token/ERC20/ERC20.sol#70-72)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (contracts/token/ERC20/ERC20.sol#101-103)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (contracts/token/ERC20/ERC20.sol#113-116)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (contracts/token/ERC20/ERC20.sol#178-181)
getRoleMember(bytes32,uint256) should be declared external:
- AccessControlEnumerable.getRoleMember(bytes32,uint256) (contracts/access/AccessControlEnumerable.sol#37-39)
name() should be declared external:
- ERC20.name() (contracts/token/ERC20/ERC20.sol#62-64)
grantRole(bytes32,address) should be declared external:
- AccessControl.grantRole(bytes32,address) (contracts/access/AccessControl.sol#130-132)
unpause() should be declared external:
- ERC20PresetMinterPauser.unpause() (contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol#80-83)
revokeRole(bytes32,address) should be declared external:
- AccessControl.revokeRole(bytes32,address) (contracts/access/AccessControl.sol#143-145)
totalSupply() should be declared external:
- ERC20.totalSupply() (contracts/token/ERC20/ERC20.sol#94-96)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (contracts/token/ERC20/ERC20.sol#132-135)
renounceRole(bytes32,address) should be declared external:
- AccessControl.renounceRole(bytes32,address) (contracts/access/AccessControl.sol#161-165)
burn(uint256) should be declared external:
- ERC20Burnable.burn(uint256) (contracts/token/ERC20/extensions/ERC20Burnable.sol#20-22)
pause() should be declared external:
- ERC20PresetMinterPauser.pause() (contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol#66-69)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:
No disclosed threats


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Young tokens have high risks of scam / price dump / death


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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


Young tokens have high risks of price dump / death

Price for UCON