Smart Contract Audit Report

Audit Summary

ShibaPepe Audit Report ShibaPepe is a new ERC-20 token on Ethereum.

For this audit, we reviewed the project team's TaxableERC20 contract at 0x7eE68A5B4F11365B361e32c6D6fE3fb4973e4524 on the Ethereum Mainnet.

Audit Findings

No findings were identified.
Date: May 15th, 2023.

Contract Overview

  • The total supply of the token is set to 1 quadrillion $SHEPE [1,000,000,000,000,000].
  • No mint or burn functions are accessible, though the circulating supply can be decreased by sending tokens to the 0x..dead address.
  • At the time of writing this report, 100% of the total supply belongs to the deployer.

  • Ownership has been renounced by the team.
  • Although a Tax fee is present in the contract, its percentage is permanently set to zero.
  • The owner was previously able to set the Tax fee to any percentage up to 99.9% at any time.
  • The owner was previously able to include and exclude accounts from the Tax fee at any time.
  • The owner was previously able to set the team's Fee wallet to any address at any time.
  • As the contract is deployed with Solidity v0.8.19, it is protected from overflows/underflows.
  • The contract complies with the ERC-20 token standard.

Audit Results

Vulnerability Category Notes Result
Arbitrary Jump/Storage Write N/A PASS
Centralization of Control Ownership has been renounced by the team. PASS
Compiler Issues N/A PASS
Delegate Call to Untrusted Contract N/A PASS
Dependence on Predictable Variables N/A PASS
Ether/Token Theft N/A PASS
Flash Loans N/A PASS
Front Running N/A PASS
Improper Events N/A PASS
Improper Authorization Scheme N/A PASS
Integer Over/Underflow N/A PASS
Logical Issues N/A PASS
Oracle Issues N/A PASS
Outdated Compiler Version N/A PASS
Race Conditions N/A PASS
Reentrancy N/A PASS
Signature Issues N/A PASS
Sybil Attack N/A PASS
Unbounded Loops N/A PASS
Unused Code N/A PASS
Overall Contract Safety   PASS

Inheritance Chart

Smart Contract Audit - Inheritance

Function Graph

Smart Contract Audit - Graph

Functions Overview

 ($) = payable function
 # = non-constant function
 Int = Internal
 Ext = External
 Pub = Public

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

 + [Int] IERC20 
    - [Ext] totalSupply
    - [Ext] balanceOf
    - [Ext] transfer #
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transferFrom #

 + [Int] IERC20Metadata (IERC20)
    - [Ext] name
    - [Ext] symbol
    - [Ext] decimals

 +  ERC20 (Context, IERC20, IERC20Metadata)
    - [Pub]  #
    - [Pub] name
    - [Pub] symbol
    - [Pub] decimals
    - [Pub] totalSupply
    - [Pub] balanceOf
    - [Pub] transfer #
    - [Pub] allowance
    - [Pub] approve #
    - [Pub] transferFrom #
    - [Pub] increaseAllowance #
    - [Pub] decreaseAllowance #
    - [Int] _transfer #
    - [Int] _mint #
    - [Int] _burn #
    - [Int] _approve #
    - [Int] _spendAllowance #
    - [Int] _beforeTokenTransfer #
    - [Int] _afterTokenTransfer #

 +  ERC20Decimals (ERC20)
    - [Pub]  #
    - [Pub] decimals

 +  ERC20Taxable (ERC20)
    - [Pub]  #
    - [Pub] transfer #
    - [Pub] transferFrom #
    - [Pub] taxFeePerMille
    - [Pub] taxAddress
    - [Pub] isExcludedFromTaxFee
    - [Int] _setTaxRate #
    - [Int] _setTaxAddress #
    - [Int] _setExclusionFromTaxFee #

 + [Int] IPayable 
    - [Ext] pay ($)

 +  ServicePayer 
    - [Pub]  ($)

 +  TaxableERC20 (ERC20Decimals, ERC20Taxable, Ownable, ServicePayer)
    - [Pub]  ($)
       - modifiers: ERC20,ERC20Decimals,ERC20Taxable,ServicePayer
    - [Pub] setTaxFeePerMille #
       - modifiers: onlyOwner
    - [Pub] setTaxAddress #
       - modifiers: onlyOwner
    - [Pub] setExclusionFromTaxFee #
       - modifiers: onlyOwner
    - [Pub] transfer #
    - [Pub] transferFrom #
    - [Pub] decimals

About SourceHat

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What is a SourceHat Audit?

Typically, a smart contract audit is a comprehensive review process designed to discover logical errors, security vulnerabilities, and optimization opportunities within code. A SourceHat Audit takes this a step further by verifying economic logic to ensure the stability of smart contracts and highlighting privileged functionality to create a report that is easy to understand for developers and community members alike.

How Do I Interpret the Findings?

Each of our Findings will be labeled with a Severity level. We always recommend the team resolve High, Medium, and Low severity findings prior to deploying the code to the mainnet. Here is a breakdown on what each Severity level means for the project:

  • High severity indicates that the issue puts a large number of users' funds at risk and has a high probability of exploitation, or the smart contract contains serious logical issues which can prevent the code from operating as intended.
  • Medium severity issues are those which place at least some users' funds at risk and has a medium to high probability of exploitation.
  • Low severity issues have a relatively minor risk association; these issues have a low probability of occurring or may have a minimal impact.
  • Informational issues pose no immediate risk, but inform the project team of opportunities for gas optimizations and following smart contract security best practices.