This analysis is based on observations of the contract behavior. We are not smart contract security experts. This document aims to explain what the contract appears to do based on the code. It should not be considered a comprehensive security audit or financial advice. Always verify critical information independently and consult with blockchain security professionals for important decisions.
Updates configuration parameters for minimum balance threshold, balance check percentage, and cooldown period. Owner-only control with bounds validation.
functionupdateConfiguration(uint256_minBalance,uint256_checkPercentage,uint256_cooldown)externalonlyOwner{if(_minBalance==0)revertInvalidConfiguration();if(_checkPercentage<1||_checkPercentage>100)revertInvalidConfiguration();if(_cooldown>2592000)revertInvalidConfiguration();// Max 30 daysminimumBalanceThreshold=_minBalance;balanceCheckPercentage=_checkPercentage;cooldownPeriod=_cooldown;emitConfigurationUpdated(_minBalance,_checkPercentage,_cooldown);}
Function: runDailyCheck()
Iterates through all registered addresses to verify their SENT token balances still meet the threshold. Deactivates members who fall below the required balance. Owner-only control.
ATTRIBUTE
VALUE
Selector
0xde508c8c
Parameters
None
Access
Owner only
Modifiers
onlyOwner, nonReentrant
FLAG
OBSERVATION
△
Reverts if more than 100 participants (must use batch version)
△
Gas cost scales linearly with participant count
☑
Uses staticcall to read balances (no state changes in SENT contract)
functionrunDailyCheck()externalonlyOwnernonReentrant{uint256length=registeredAddresses.length;require(length<=100,"Too many participants: use runDailyCheckBatch()");uint256activeCount=0;uint256requiredBalance=(minimumBalanceThreshold*balanceCheckPercentage)/100;for(uint256i=0;i<length;i++){addressparticipant=registeredAddresses[i];// Skip if already inactiveif(!participants[participant].isActive)continue;// Check balanceuint256balance=IERC20(sentToken).balanceOf(participant);if(balance>=requiredBalance){activeCount++;participants[participant].lastCheckAt=block.timestamp;}else{// Deactivate memberparticipants[participant].isActive=false;participants[participant].lastCheckAt=block.timestamp;totalActiveMembers--;// Add history entryparticipantHistory[participant].push(HistoryEntry({timestamp:block.timestamp,wasActive:false,eventType:EventType.BalanceCheckFailed
}));}}lastDailyCheckTime=block.timestamp;emitDailyCheckCompleted(length,activeCount,block.timestamp);}
Function: runDailyCheckBatch(uint256,uint256)
Batch version of daily check that processes a specified range of registered addresses. Enables processing of large registries without hitting gas limits. Owner-only control.
ATTRIBUTE
VALUE
Selector
0x2a65daa5
Parameters
uint256 _startIndex, uint256 _endIndex
Access
Owner only
Modifiers
onlyOwner, nonReentrant
FLAG
OBSERVATION
☑
Allows chunked processing to avoid gas limits
△
Batch size limited to 100 addresses per call
△
Requires owner to track progress across multiple transactions
☑
Validates index bounds to prevent out-of-range errors
CONDITION
REQUIREMENT
Valid Range
_startIndex < _endIndex
Within Bounds
_endIndex <= registeredAddresses.length
Batch Size
_endIndex - _startIndex <= 100
STEP
ACTION
1
Verify caller is owner
2
Validate _startIndex < _endIndex
3
Validate _endIndex <= array length
4
Validate batch size <= 100
5
For each address in range [_startIndex, _endIndex):
5a
Skip if already inactive
5b
Read SENT balance via staticcall
5c
Calculate required balance
5d
If balance < required: deactivate and record history
6
Update lastDailyCheckTime if this is the final batch
functionrunDailyCheckBatch(uint256_startIndex,uint256_endIndex)externalonlyOwnernonReentrant{require(_startIndex<_endIndex,"Invalid range");require(_endIndex<=registeredAddresses.length,"Index out of bounds");require(_endIndex-_startIndex<=100,"Batch size exceeds limit");uint256activeCount=0;uint256requiredBalance=(minimumBalanceThreshold*balanceCheckPercentage)/100;for(uint256i=_startIndex;i<_endIndex;i++){addressparticipant=registeredAddresses[i];if(!participants[participant].isActive)continue;uint256balance=IERC20(sentToken).balanceOf(participant);if(balance>=requiredBalance){activeCount++;participants[participant].lastCheckAt=block.timestamp;}else{participants[participant].isActive=false;participants[participant].lastCheckAt=block.timestamp;totalActiveMembers--;participantHistory[participant].push(HistoryEntry({timestamp:block.timestamp,wasActive:false,eventType:EventType.BalanceCheckFailed
}));}}emitDailyCheckBatchCompleted(_startIndex,_endIndex,activeCount);}
Function: batchRegister(address[])
Registers multiple addresses in a single transaction. Owner-only function likely used for initial setup or migration. Bypasses normal registration checks.
ATTRIBUTE
VALUE
Selector
0x1d88bbe5
Parameters
address[] _addresses
Access
Owner only
Modifiers
onlyOwner, nonReentrant
FLAG
OBSERVATION
△
Owner can add addresses without balance or eligibility checks
△
Bypasses normal registration requirements
☒
Could be used to add ineligible addresses
△
Batch size likely limited to avoid gas limits
CONDITION
REQUIREMENT
Non-empty Array
_addresses.length > 0
Valid Addresses
All addresses should be non-zero
STEP
ACTION
1
Verify caller is owner
2
For each address in array:
2a
Skip if already registered
2b
Set isRegistered = true
2c
Add to registeredAddresses array
2d
Create participant record
2e
Increment counters
3
Emit BatchRegistered event with count
VARIABLE
CHANGE
isRegistered[addr]
Set to true for each address
registeredAddresses
Append each new address
participants[addr]
Create records for each address
totalUniqueParticipants
Increment for each new registration
totalRegistrations
Increment for each registration
totalActiveMembers
Increment for each registration
CONDITION
REVERT MESSAGE
msg.sender != owner
"Ownable: caller is not the owner"
_addresses.length == 0
"Empty array"
functionbatchRegister(address[]calldata_addresses)externalonlyOwnernonReentrant{require(_addresses.length>0,"Empty array");uint256registered=0;for(uint256i=0;i<_addresses.length;i++){addressaddr=_addresses[i];// Skip if already registeredif(isRegistered[addr])continue;isRegistered[addr]=true;registeredAddresses.push(addr);participants[addr]=Participant({registeredAt:block.timestamp,lastCheckAt:block.timestamp,isActive:true,reRegistrationCount:0});totalUniqueParticipants++;totalRegistrations++;totalActiveMembers++;registered++;}emitBatchRegistered(registered,block.timestamp);}
Function: transferOwnership(address)
Transfers ownership of the contract to a new address. OpenZeppelin Ownable pattern implementation.
functiontransferOwnership(addressnewOwner)publicvirtualonlyOwner{require(newOwner!=address(0),"Ownable: new owner is the zero address");_transferOwnership(newOwner);}function_transferOwnership(addressnewOwner)internalvirtual{addressoldOwner=owner();// Update owner in EIP-1967 admin slotStorageSlot.getAddressSlot(ADMIN_SLOT).value=newOwner;emitOwnershipTransferred(oldOwner,newOwner);}
Function: renounceOwnership()
Permanently removes ownership, making the contract ownerless. All owner-only functions become permanently inaccessible. OpenZeppelin Ownable pattern implementation.
Upgrades the implementation contract to a new address and optionally calls a function on the new implementation. Owner-only control with no time lock.
ATTRIBUTE
VALUE
Selector
0x4f1ef286
Parameters
address newImplementation, bytes calldata data
Access
Owner only
Modifiers
onlyOwner
FLAG
OBSERVATION
△
Owner can upgrade immediately without warning
△
No time lock or community approval
☑
Validates new implementation has proxiableUUID()
☒
Could introduce malicious logic
CONDITION
REQUIREMENT
Valid Implementation
newImplementation must implement proxiableUUID()
Owner Authorization
Caller must be current owner
STEP
ACTION
1
Verify caller is owner
2
Validate new implementation supports UUPS (proxiableUUID check)
3
Update implementation address in EIP-1967 slot
4
If data.length > 0: delegatecall to new implementation with data
5
Emit Upgraded(newImplementation) event
VARIABLE
CHANGE
Implementation slot (0x360894a1...)
Update to newImplementation
CONDITION
REVERT MESSAGE
msg.sender != owner
"Ownable: caller is not the owner"
Invalid implementation
"ERC1967: new implementation is not UUPS"
Delegatecall fails
Propagate error from new implementation
functionupgradeToAndCall(addressnewImplementation,bytesmemorydata
)externalpayableonlyOwner{// Validate new implementationtryIERC1822Proxiable(newImplementation).proxiableUUID()returns(bytes32slot){require(slot==0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc,"ERC1967: new implementation is not UUPS");}catch{revert("ERC1967: new implementation is not UUPS");}// Update implementation slotStorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value=newImplementation;// Call initialization function if data providedif(data.length>0){(boolsuccess,bytesmemoryreturndata)=newImplementation.delegatecall(data);require(success,"Upgrade call failed");}emitUpgraded(newImplementation);}