Modular Structure Details

Tylix Token's smart contract code is designed based on the principle of a strong modular structure. This structure improves both the readability and security of the code, while providing a solid foundation for future extensions.

Basic Modules

ERC20 Module

• This module defines the basic functions of the token (balance display, transfer, confirmation, etc.).

• The Tylix contract uses these functions directly, inheriting from the ERC20 class.

• All token logic is based on this standard.

Ownership Module

• It ensures that only an authorized address (owner) within the system can call critical functions.

• This module limits central administration functions such as recordHistory, pause, unpause.

Pause Module

• Allows the contract to be pausable via the Pausable class.

• It is intended to temporarily shut down the system, especially for emergencies, moments of maintenance or attacks on the chain.

• whenNotPaused and whenPaused modifiers make function calls conditional on the state of the contract.

PoH Module

• This module is specially written to verify past transactions in the system.

• mapping(bytes32 => bool) private historyHashes; variable stores hash records.

• lastHistoryHash and lastTimestamp variables are used to keep track of the last record.

Thanks to this structure, even non-system events (e.g. the hash of a file) become verifiable on-chain.

Security Layers

Each module has its own security boundary with require controls. Thus, each module is responsible for ensuring both transaction and data security within its own responsibility.

• pause() : time control.

• recordHistory() : date order, duplicate check, empty hash barrier.

• safeTransfer() : address validity, balance check.

Tylix Token's architecture and modular structure provides a simple-looking yet functionally rich contract framework. User actions are backed by security controls, and each module is only authorized for as many transactions as it is responsible for. This ensures both system security and code integrity suitable for software engineering.