PolkadogV2 Token - Smart Contract Audit Report

Summary

PolkadogV2 Audit Report PolkadogV2 ($EINSTEIN) is a new deflationary DeFi token on the Binance Smart Chain that is an automatic liquidity providing protocol.

The PolkadogV2 Token contract is deployed at 0xBd65a197408230247F05247A71D1A9Aea9Db0C3c on the Binance Smartchain mainnet.

Notes on the Contract:
  • The total supply of the token is currently to 399.6 million $EINSTEIN [399,606,853].
  • The owner has the ability to burn their own tokens to reduce the total supply.
  • The owner has the ability to mint tokens to any address at any time as long as the total supply does not exceed 400 million $EINSTEIN.
  • At the time of writing this report, 62.56% of the total token supply is in possession of an AdminUpgradeabilityProxy contract. This contract also holds 96.95% of the LP tokens.
  • 1.9% of the total supply is in Pancakeswap liquidity.
  • The top 3 holders own a cumulative 15.62% of the total supply.

  • There is a liquidity fee and burn fee on all transactions for any "non-excluded" address that participates in a transfer. The owner has the ability to modify these fees to any percentage at any time.
  • The tokens collected from the liquidity fee during transfers are stored in the contract address balance. Once the threshold value (determined by the owner) is met, a swap will occur for the purpose of funding Pancakeswap liquidity. This functionality can be disabled by the owner at any time.
  • Liquidity-adds are funded by selling a portion of the tokens collected as fees (after the threshold as determined by the owner is met), then pairing the received BNB with the token, and adding it as liquidity to the BNB pair.
  • The recipient of the newly created LP tokens is the owner of the contract.The stability of the liquidity pool can be at risk if these LP tokens are not locked.
  • The tokens collected from the burn fee are immediately burned upon each transaction.
  • The contract features a CoolDown mechanism that will prevent users from selling to Pancakeswap if the CoolDown time (set by the owner) since their last sell to Pancakeswap has not yet elapsed.
  • As the project is implemented with Solidity v0.8.0, it is protected from overflows.

  • Ownership Controls:
  • Ownership has not been renounced.
  • The owner has the ability to set the liquidity fee and burn fee to any percentages at any time.
  • The owner can pause all buying/selling transactions **with Pancakeswap** at any time.
  • The owner of the contract can exclude and include accounts from transfer fees and reward distribution.
  • The owner has the ability to set and update a maximum transaction amount at any time, which will impose a limit to the number of tokens that can be transferred during any given transaction. This functionality can be toggled on/off by the owner.
  • The owner has the ability to set and modify a 'cool down' to any value at any time.
  • The owner can enable/disable the swap and liquify functionality at any time.
  • The owner can update the minimum threshold needed for swapping tokens to any value at any time.
  • The owner can enable/disable transfer fees on all transactions at any time.
  • The owner has the ability to blacklist any addresses from participating in transfers.
  • The owner can withdraw any BNB or BEP20 tokens erroneously sent to the contract address at any time.
Audit Findings Summary
  • No external threats were identified.
  • Please ensure trust in the team prior to investing as they have substantial control in the ecosystem.
  • Date: October 20th, 2021

Audit Results

Vulnerability CategoryNotesResult
Arbitrary Storage WriteN/APASS
Arbitrary JumpN/APASS
Delegate Call to Untrusted ContractN/APASS
Dependence on Predictable VariablesN/APASS
Deprecated OpcodesN/APASS
Ether ThiefN/APASS
ExceptionsN/APASS
External CallsN/APASS
Flash LoansN/APASS
Integer Over/UnderflowN/APASS
Multiple SendsN/APASS
OraclesN/APASS
SuicideN/APASS
State Change External CallsN/APASS
Unchecked RetvalN/APASS
User Supplied AssertionN/APASS
Critical Solidity CompilerN/APASS
Overall Contract Safety PASS

Function Graph

ERC20 Token Graph


Inheritence Chart

Multi-file Token


Functions Overview


 ($) = payable function
 # = non-constant function
 
 + [Int] IBEP20 
    - [Ext] totalSupply
    - [Ext] balanceOf
    - [Ext] transfer #
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transferFrom #

 + [Int] IBEP20Metadata (IBEP20)
    - [Ext] name
    - [Ext] symbol
    - [Ext] decimals

 +  Context 
    - [Int] _msgSender
    - [Int] _msgData

 +  Ownable (Context)
    - [Pub]  #
    - [Pub] owner
    - [Ext] renounceOwnership #
       - modifiers: onlyOwner
    - [Ext] transferOwnership #
       - modifiers: onlyOwner
    - [Int] _transferOwnership #

 +  Pausable (Context)
    - [Pub]  #
    - [Pub] paused
    - [Int] _pause #
       - modifiers: whenNotPaused
    - [Int] _unpause #
       - modifiers: whenPaused

 + [Int] IPancakeRouter01 
    - [Ext] factory
    - [Ext] WETH
    - [Ext] addLiquidity #
    - [Ext] addLiquidityETH ($)
    - [Ext] removeLiquidity #
    - [Ext] removeLiquidityETH #
    - [Ext] removeLiquidityWithPermit #
    - [Ext] removeLiquidityETHWithPermit #
    - [Ext] swapExactTokensForTokens #
    - [Ext] swapTokensForExactTokens #
    - [Ext] swapExactETHForTokens ($)
    - [Ext] swapTokensForExactETH #
    - [Ext] swapExactTokensForETH #
    - [Ext] swapETHForExactTokens ($)
    - [Ext] quote
    - [Ext] getAmountOut
    - [Ext] getAmountIn
    - [Ext] getAmountsOut
    - [Ext] getAmountsIn

 + [Int] IPancakeRouter02 (IPancakeRouter01)
    - [Ext] removeLiquidityETHSupportingFeeOnTransferTokens #
    - [Ext] removeLiquidityETHWithPermitSupportingFeeOnTransferTokens #
    - [Ext] swapExactTokensForTokensSupportingFeeOnTransferTokens #
    - [Ext] swapExactETHForTokensSupportingFeeOnTransferTokens ($)
    - [Ext] swapExactTokensForETHSupportingFeeOnTransferTokens #

 + [Int] IPancakeFactory 
    - [Ext] feeTo
    - [Ext] feeToSetter
    - [Ext] getPair
    - [Ext] allPairs
    - [Ext] allPairsLength
    - [Ext] createPair #
    - [Ext] setFeeTo #
    - [Ext] setFeeToSetter #

 +  BEP20 (Context, IBEP20, IBEP20Metadata, Ownable, Pausable)
    - [Pub]  #
    - [Ext] name
    - [Ext] symbol
    - [Ext] decimals
    - [Pub] totalSupply
    - [Ext] balanceOf
    - [Ext] transfer #
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transferFrom #
    - [Ext] increaseAllowance #
    - [Ext] decreaseAllowance #
    - [Ext] burn #
       - modifiers: onlyOwner
    - [Ext] mint #
       - modifiers: onlyOwner
    - [Ext] pauseContract #
       - modifiers: onlyOwner
    - [Ext] unPauseContract #
       - modifiers: onlyOwner
    - [Ext] pauseAddress #
       - modifiers: onlyOwner
    - [Ext] unPauseAddress #
       - modifiers: onlyOwner
    - [Ext] isAddressPaused
    - [Ext] withdrawToken #
       - modifiers: onlyOwner
    - [Pub] getBalance
    - [Ext] withdrawBnbFromContract #
       - modifiers: onlyOwner
    - [Ext] excludeFromFee #
       - modifiers: onlyOwner
    - [Ext] includeInFee #
       - modifiers: onlyOwner
    - [Ext] isIncludedInFee
    - [Ext] setLiquidityFeePercent #
       - modifiers: onlyOwner
    - [Ext] setTransactionBurnPercent #
       - modifiers: onlyOwner
    - [Ext] setLiquidityFeeToSell #
       - modifiers: onlyOwner
    - [Ext] setMaxTxLimit #
       - modifiers: onlyOwner
    - [Ext] setCoolDownTimeBound #
       - modifiers: onlyOwner
    - [Ext] setEnableFee #
       - modifiers: onlyOwner
    - [Ext] setEnableLiquidityFee #
       - modifiers: onlyOwner
    - [Ext] setEnableTransactionBurn #
       - modifiers: onlyOwner
    - [Ext] setEnableCoolDown #
       - modifiers: onlyOwner
    - [Ext] setEnableSellLimit #
       - modifiers: onlyOwner
    - [Ext] setEnableTaxEvent #
       - modifiers: onlyOwner
    - [Ext] setSwapAndLiquifyEnabled #
       - modifiers: onlyOwner
    - [Ext]  ($)
    - [Int] _transfer #
    - [Int] calculateLiquidityFee
    - [Int] calculateTransactionBurn
    - [Int] takeLiquidity #
    - [Int] takeTransactionBurn #
    - [Int] _swapAndLiquify #
    - [Int] swapAndLiquify #
       - modifiers: lockTheSwap
    - [Int] swapTokensForEth #
    - [Int] addLiquidity #
    - [Int] _mint #
    - [Int] _burn #
    - [Int] _approve #
    - [Int] _beforeTokenTransfer #

 +  BEP20Capped (BEP20)
    - [Pub]  #
    - [Pub] cap
    - [Int] _mint #

 +  Polkadog (BEP20Capped)
    - [Pub]  #
       - modifiers: BEP20,BEP20Capped