LaikaDog - Smart Contract Audit Report

Summary

LaikaDog ($LAI) is a new BEP20 token with automatic liquidity adds and a buyback system for burning supply that pays out dividends to holders.

Notes on the Contract:

• The total supply of the token is set to 1 trillion $LAI [1,000,000,000,000].
• No mint or burn functions are present beyond deployment; though the circulating supply can be reduced by sending tokens to the 0x..dead address if desired.
• At the time of writing this report, 100% of the total supply belongs to the owner as the contract was recently deployed.


• There is a tax fee charged on each transaction that gets stored in the contract balance; fees can be increased during a sell to PancakeSwap up to a value proportional to the time left in the buyback multiplier period (if any). A separate fee structure exists that applies a different fee percentage when the user is buying tokens from Pancakeswap.
• Once a threshold value of tokens in the contract balance is met, a portion of the contract balance is swapped for BNB and distributed as dividends, and another portion is sent to the team's Marketing wallet.
• Another portion is allocated to funding PancakeSwap liquidity. Liquidity-adds are funded by selling half of the tokens allocated to funding liquidity, pairing the received BNB with the token, and adding it as liquidity to the BNB pair.
• The newly created LP tokens are sent to an address controlled by the team. The team is responsible for locking these newly acquired LP tokens.
• If the auto buyback functionality is enabled, and the amount of BNB in the contract reaches the autobuyback threshold value determined by the team, the BNB will be swapped for $LAI tokens and sent to the burn address.


• Any user that holds any amount of $LAI tokens are eligible to claim dividends once the amount of dividends they are due reaches a minimum threshold value determined by team.
• Once dividends are distributed, they will need to be claimed; claiming happens automatically on each transfer.
• Dividend rewards can also be claimed manually by kicking off the claim cycle, which will process all eligible token holders.
• Alternatively, a user can manually claim dividends as an individual.
• There is a wait-time between claiming dividend rewards.
• Claimed dividends are sent to the user's wallet address.

Ownership Controls:
• The owner can update the dividend reward token at any time.
• The owner can withdraw any BNB from the contract address at any time.
• The owner can update the Dividend Distributor address at any time.
• The owner can assign multiple addresses to an 'Authorized' role. The assigned addresses have access to specific functions in the contract.
• Authorized addresses can set the total fees charged on transactions to any value up to 25% when selling, and any value up to 10% when buying.
• Authorized addresses can set the percentage of the fees allocated to any fund (liquidity, marketing, buyback, dividends) at any time.
• Authorized addresses can exclude any address from transfer fees and dividends at any time.
• Authorized addresses can update the minimum threshold value of rewards needed that determines when a user can claim their dividends.
• Authorized addresses can set a maximum transaction limit which is enforced during sell transactions to PancakeSwap. Any authorized address can also exclude accounts from this maximum transaction limit.
• Authorized addresses can automatically trigger a buyback at any time.
• Authorized addresses can set or disable the buyback fee multiplier at any time.
• Authorized addresses can disable the autobuyback system and set any the threshold BNB value to trigger a buyback.
• Authorized addresses can enable/disable the automatic liquidity adds at any time and set any threshold value related to it.
• Authorized addresses can update the PancakeSwap Pair address at any time.
• Authorized addresses can update the maximum amount of gas used for processing to a value up to 750,000 at any time.
• Authorized addresses can update the amount of time a user must wait between claiming dividends to any value at any time.

Audit Findings Summary

• No external threats were identified.
• As with any presale, please ensure trust in the team prior to investing.
• Further ensure trust in the team as they have substantial control in the ecosystem.
• Date: December 17th, 2021
• Updated: December 21st, 2021 to reflect mainnet deployment.

External Threat Results

												
($) = payable function
 # = non-constant function

 + [Lib] SafeMath 
    - [Int] tryAdd
    - [Int] trySub
    - [Int] tryMul
    - [Int] tryDiv
    - [Int] tryMod
    - [Int] add
    - [Int] sub
    - [Int] mul
    - [Int] div
    - [Int] mod
    - [Int] sub
    - [Int] div
    - [Int] mod

 + [Int] IBEP20 
    - [Ext] totalSupply
    - [Ext] decimals
    - [Ext] symbol
    - [Ext] name
    - [Ext] getOwner
    - [Ext] balanceOf
    - [Ext] transfer #
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transferFrom #

 +  Auth 
    - [Pub]  #
    - [Pub] authorize #
       - modifiers: onlyOwner
    - [Pub] unauthorize #
       - modifiers: onlyOwner
    - [Pub] isOwner
    - [Pub] isAuthorized
    - [Pub] transferOwnership #
       - modifiers: onlyOwner

 + [Int] IDEXRouter 
    - [Ext] factory
    - [Ext] WETH
    - [Ext] addLiquidity #
    - [Ext] addLiquidityETH ($)
    - [Ext] swapExactTokensForTokensSupportingFeeOnTransferTokens #
    - [Ext] swapExactETHForTokensSupportingFeeOnTransferTokens ($)
    - [Ext] swapExactTokensForETHSupportingFeeOnTransferTokens #

 + [Int] IDividendDistributor 
    - [Ext] setDistributionCriteria #
    - [Ext] setShare #
    - [Ext] deposit #
    - [Ext] process #

 + [Int] IDEXFactory 
    - [Ext] createPair #

 +  LaikaDog (IBEP20, Auth)
    - [Pub]  #
       - modifiers: Auth
    - [Ext]  ($)
    - [Ext] totalSupply
    - [Ext] decimals
    - [Ext] symbol
    - [Ext] name
    - [Ext] getOwner
    - [Pub] balanceOf
    - [Ext] allowance
    - [Ext] setDividendDistributor #
       - modifiers: onlyOwner
    - [Ext] setWhiteList #
       - modifiers: authorized
    - [Ext] setPair #
       - modifiers: authorized
    - [Pub] approve #
    - [Ext] approveMax #
    - [Ext] transfer #
    - [Ext] transferFrom #
    - [Int] _transferFrom #
    - [Int] _basicTransfer #
    - [Int] checkTxLimit
    - [Int] shouldTakeFee
    - [Pub] getTotalFee
    - [Pub] getMultipliedFee
    - [Int] takeFee #
    - [Int] shouldSwapBack
    - [Int] swapBack #
       - modifiers: swapping
    - [Int] shouldAutoBuyback
    - [Ext] triggerLaikaBuyback #
       - modifiers: authorized
    - [Ext] clearBuybackMultiplier #
       - modifiers: authorized
    - [Int] triggerAutoBuyback #
    - [Int] buyTokens #
       - modifiers: swapping
    - [Ext] setAutoBuybackSettings #
       - modifiers: authorized
    - [Ext] setBuybackMultiplierSettings #
       - modifiers: authorized
    - [Ext] setTxLimit #
       - modifiers: authorized
    - [Ext] setIsDividendExempt #
       - modifiers: authorized
    - [Ext] setIsFeeExempt #
       - modifiers: authorized
    - [Ext] setIsFeeExemptRecipient #
       - modifiers: authorized
    - [Ext] setIsTxLimitExempt #
       - modifiers: authorized
    - [Ext] setFees #
       - modifiers: authorized
    - [Ext] setBuyFee #
       - modifiers: authorized
    - [Ext] setFeeReceivers #
       - modifiers: authorized
    - [Ext] setSwapBackSettings #
       - modifiers: authorized
    - [Ext] setTargetLiquidity #
       - modifiers: authorized
    - [Ext] setDistributionCriteria #
       - modifiers: authorized
    - [Ext] setDistributorSettings #
       - modifiers: authorized
    - [Pub] getCirculatingSupply
    - [Pub] getLiquidityBacking
    - [Pub] isOverLiquified
    - [Ext] withdrawBNB #
       - modifiers: onlyOwner

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