Project Background

This Solidity code defines an implementation of the ERC-20 token standard, including interfaces for ERC-20, ERC-721, and ERC-1155 error handling. The contract includes:

1. Standard ERC-20 Interface (IERC20)
   • Defines basic ERC-20 functions (transfer, approve, allowance, balanceOf, totalSupply).
   • Includes Transfer and Approval events.
2. Custom ERC-20 Errors (IERC20Errors)
   • Defines custom errors such as ERC20InsufficientBalance, ERC20InvalidSender, ERC20InvalidReceiver, and ERC20InsufficientAllowance.
3. Custom ERC-721 and ERC-1155 Errors (IERC721Errors, IERC1155Errors)
   • Defines errors specific to ERC-721 and ERC-1155 tokens, such as ERC721InvalidOwner, ERC721NonexistentToken, and ERC1155InsufficientBalance.
4. ERC-20 Metadata Interface (IERC20Metadata)
   • Extends IERC20 to include functions for name(), symbol(), and decimals().
5. Context Contract (Context)
   • Provides _msgSender() and _msgData() helper functions.
6. ERC-20 Implementation (ERC20)
   • Implements IERC20, IERC20Metadata, and IERC20Errors.
   • Stores balances in _balances mapping and allowances in _allowances mapping.
   • Implements transfer, approve, and transferFrom with error handling.
   • _transfer function ensures valid addresses and calls _update, which manages token balance changes.

Executive Audit Summary

• According to the standard audit assessment, the Customer`s solidity smart contracts are “Well Secured”. This contract has no ownership control, hence it is 100% decentralized.
  
• We used various tools like Slither, Solhint and Remix IDE. At the same time this finding is based on critical analysis of the manual audit.
• We have not observed any issues in smart contract.

Audit Report in PDF

Audit Report Flip book