OSS [OSSDAO on BSC OSSDAO.ORG] Token

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

ERC20Votes._writeCheckpoint(ERC20Votes.Checkpoint[],function(uint256,uint256) returns(uint256),uint256) (#2234-2248) uses a dangerous strict equality:
- pos > 0 && ckpts[pos - 1].fromBlock == block.number (#2243)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

Contract name (OSSDAO on BSC OSSDAO.ORG) 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.

ERC20Votes._moveVotingPower(address,address,uint256).oldWeight_scope_0 (#2228) is a local variable never initialized
ERC20Votes._moveVotingPower(address,address,uint256).newWeight_scope_1 (#2228) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

ERC20Permit.constructor(string).name (#1944) shadows:
- ERC20.name() (#1612-1614) (function)
- IERC20Metadata.name() (#1537) (function)
Rename the local variables that shadow another component.

Additional information: link

OSSOnBSC.setSinger(address).signer (#2542) lacks a zero-check on :
- _cSigner = signer (#2543)
Check that the address is not zero.

Additional information: link

Variable 'ECDSA.tryRecover(bytes32,bytes).r (#527)' in ECDSA.tryRecover(bytes32,bytes) (#522-551) potentially used before declaration: r = mload(uint256)(signature + 0x20) (#544)
Variable 'ERC20Votes._moveVotingPower(address,address,uint256).newWeight (#2223)' in ERC20Votes._moveVotingPower(address,address,uint256) (#2216-2232) potentially used before declaration: (oldWeight,newWeight) = _writeCheckpoint(_checkpoints[dst],_add,amount) (#2228)
Variable 'ERC20Votes._moveVotingPower(address,address,uint256).oldWeight (#2223)' in ERC20Votes._moveVotingPower(address,address,uint256) (#2216-2232) potentially used before declaration: (oldWeight,newWeight) = _writeCheckpoint(_checkpoints[dst],_add,amount) (#2228)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.

Additional information: link

ERC20Permit.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (#1949-1968) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= deadline,ERC20Permit: expired deadline) (#1958)
ERC20Votes.delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32) (#2141-2158) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= expiry,ERC20Votes: signature expired) (#2149)
Avoid relying on block.timestamp.

Additional information: link

ECDSA.tryRecover(bytes32,bytes) (#522-551) uses assembly
- INLINE ASM (#532-536)
- INLINE ASM (#543-546)
ECDSA.tryRecover(bytes32,bytes32,bytes32) (#580-592) uses assembly
- INLINE ASM (#587-590)
OSSOnBSC.getChainID() (#2563-2569) uses assembly
- INLINE ASM (#2565-2567)
Do not use evm assembly.

Additional information: link

Different versions of Solidity is used:
- Version used: ['^0.8.0', '^0.8.2']
- ^0.8.0 (#6)
- ^0.8.0 (#34)
- ^0.8.0 (#65)
- ^0.8.0 (#156)
- ^0.8.0 (#400)
- ^0.8.0 (#470)
- ^0.8.0 (#706)
- ^0.8.0 (#812)
- ^0.8.0 (#875)
- ^0.8.0 (#921)
- ^0.8.0 (#967)
- ^0.8.0 (#1017)
- ^0.8.0 (#1044)
- ^0.8.0 (#1269)
- ^0.8.0 (#1362)
- ^0.8.0 (#1440)
- ^0.8.0 (#1525)
- ^0.8.0 (#1555)
- ^0.8.0 (#1913)
- ^0.8.0 (#2002)
- ^0.8.0 (#2264)
- ^0.8.0 (#2461)
- ^0.8.2 (#2504)
Use one Solidity version.

Additional information: link

AccessControl._setRoleAdmin(bytes32,bytes32) (#1233-1237) is never used and should be removed
AccessControl._setupRole(bytes32,address) (#1224-1226) is never used and should be removed
Context._msgData() (#1034-1036) is never used and should be removed
Counters.decrement(Counters.Counter) (#903-909) is never used and should be removed
Counters.reset(Counters.Counter) (#911-913) is never used and should be removed
ECDSA.recover(bytes32,bytes32,bytes32) (#599-607) is never used and should be removed
ECDSA.toEthSignedMessageHash(bytes) (#683-685) is never used and should be removed
ECDSA.toEthSignedMessageHash(bytes32) (#669-673) is never used and should be removed
ERC20Votes._add(uint256,uint256) (#2250-2252) is never used and should be removed
ERC20Votes._subtract(uint256,uint256) (#2254-2256) is never used and should be removed
Math.ceilDiv(uint256,uint256) (#956-959) is never used and should be removed
Math.max(uint256,uint256) (#930-932) is never used and should be removed
Math.min(uint256,uint256) (#937-939) is never used and should be removed
OSSOnBSC.getChainID() (#2563-2569) is never used and should be removed
SafeCast.toInt128(int256) (#304-307) is never used and should be removed
SafeCast.toInt16(int256) (#358-361) is never used and should be removed
SafeCast.toInt256(uint256) (#388-392) is never used and should be removed
SafeCast.toInt32(int256) (#340-343) is never used and should be removed
SafeCast.toInt64(int256) (#322-325) is never used and should be removed
SafeCast.toInt8(int256) (#376-379) is never used and should be removed
SafeCast.toUint128(uint256) (#199-202) is never used and should be removed
SafeCast.toUint16(uint256) (#259-262) is never used and should be removed
SafeCast.toUint256(int256) (#286-289) is never used and should be removed
SafeCast.toUint64(uint256) (#229-232) is never used and should be removed
SafeCast.toUint8(uint256) (#274-277) is never used and should be removed
SafeCast.toUint96(uint256) (#214-217) is never used and should be removed
Strings.toHexString(uint256) (#436-447) is never used and should be removed
Strings.toString(uint256) (#411-431) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.8.0 (#6) allows old versions
Pragma version^0.8.0 (#34) allows old versions
Pragma version^0.8.0 (#65) allows old versions
Pragma version^0.8.0 (#156) allows old versions
Pragma version^0.8.0 (#400) allows old versions
Pragma version^0.8.0 (#470) allows old versions
Pragma version^0.8.0 (#706) allows old versions
Pragma version^0.8.0 (#812) allows old versions
Pragma version^0.8.0 (#875) allows old versions
Pragma version^0.8.0 (#921) allows old versions
Pragma version^0.8.0 (#967) allows old versions
Pragma version^0.8.0 (#1017) allows old versions
Pragma version^0.8.0 (#1044) allows old versions
Pragma version^0.8.0 (#1269) allows old versions
Pragma version^0.8.0 (#1362) allows old versions
Pragma version^0.8.0 (#1440) allows old versions
Pragma version^0.8.0 (#1525) allows old versions
Pragma version^0.8.0 (#1555) allows old versions
Pragma version^0.8.0 (#1913) allows old versions
Pragma version^0.8.0 (#2002) allows old versions
Pragma version^0.8.0 (#2264) allows old versions
Pragma version^0.8.0 (#2461) allows old versions
Pragma version^0.8.2 (#2504) 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

Variable EIP712._CACHED_DOMAIN_SEPARATOR (#732) is not in mixedCase
Variable EIP712._CACHED_CHAIN_ID (#733) is not in mixedCase
Variable EIP712._CACHED_THIS (#734) is not in mixedCase
Variable EIP712._HASHED_NAME (#736) is not in mixedCase
Variable EIP712._HASHED_VERSION (#737) is not in mixedCase
Variable EIP712._TYPE_HASH (#738) is not in mixedCase
Function IERC20Permit.DOMAIN_SEPARATOR() (#867) is not in mixedCase
Function ERC20Permit.DOMAIN_SEPARATOR() (#1981-1983) is not in mixedCase
Variable ERC20Permit._PERMIT_TYPEHASH (#1936-1937) is not in mixedCase
Event OSSOnBSCbridgeOutLog(address,uint256,uint256,uint256) (#2540) is not in CapWords
Follow the Solidity naming convention.

Additional information: link

OSSOnBSC._totalLocked (#2523) is never used in OSSOnBSC (#2514-2633)
Remove unused state variables.

Additional information: link

OSSOnBSC._totalLocked (#2523) should be constant
Add the constant attributes to state variables that never change.

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