Project Background

• The `TRX` contract is an ERC20 token contract that also implements the `IMintableERC20` interface. Let’s break down its key features and functionalities:
• Contract Inheritance: It inherits from:
  • ERC20: This is the standard ERC20 token contract implementation providing basic token functionalities.
  • AccessControlMixin: This mixin provides role-based access control functionalities.
  • NativeMetaTransaction: This mixin enables meta-transactions using the EIP712 standard.
• Constructor: It takes two parameters `name_` and `symbol_` and initializes the ERC20 token with the provided name and symbol.
• Role Definition: It defines a role named `PREDICATE_ROLE` using the `bytes32` constant.
• Constructor Initialization:
  • It sets up the contract ID using `_setupContractId`.
  • It sets up the `PREDICATE_ROLE` role for a specific address (likely a bridge or predicate contract).
• Minting Functionality:
  • It implements the `mint` function from the `IMintableERC20` interface, allowing the designated predicate contract to mint new tokens.
  • The `mint` function is restricted to only be called by an address with the `PREDICATE_ROLE`.
• Message Sender Override:
  • It overrides the `_msgSender` function from `ContextMixin` to return the actual sender of the message.
• Overall, this contract represents a token (`TRX`) with minting capabilities restricted to a designated predicate contract. This setup suggests that the token may be used in a sidechain or layer 2 scaling solution where token transfers are facilitated by a predicate contract acting as a bridge between Ethereum and the sidechain/layer 2 networks.

Website: tron.network

Executive Audit Summary

• According to the standard audit assessment, the Customer`s solidity smart contracts are “Secured”.  Also, these contracts contain owner control, which does not make them fully 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 found 0 critical, 0 high, 0 medium,  1 low and 4 very low-level issues.

Audit Report in PDF

Audit Report Flip book