Transaction System

To address the challenges of transactional systems, TrexWallet employs the following approaches:

• 64-bit integer processing and storage for all numerical values — extremely fast on modern processors, enabling a high number of operations per second

• Separate handling of floating-point currencies, with precision alignment based on the exchange rate at the moment of asset entry — this allows for both micro-cent level accuracy and very large balance limits (up to billions of dollars per account)

• Dual-layer accounting: tracking both client balances and project (address-based) balances

• Client transaction tracking is based on a finite state machine that manages current balance tables

• Project address balances are maintained using an accumulative debit-credit model per account/address

• All operations are processed within a single sequential pipeline limited to a single NUMA node to ensure transactional consistency

• Changes from operation batches are committed as a single database transaction, guaranteeing data integrity and atomic updates

Exchange System

TrexWallet features a built-in crypto exchange mechanism based on Frequent Batch Auctions (FBA), designed for fairness and protection against trading bots.

Exchange orders in TrexWallet do not include fractional prices — only integer amounts of the source and destination currencies are submitted. The exchange rate is implicitly derived from the ratio of these amounts, but it is not stored as a separate value.

Orders are processed using an FBA mechanism that collects matching buy and sell volumes over short intervals (around 500 ms). During this time, participants can only see the previous market state. After the interval ends, a batch of orders is processed together, calculating a single clearing price based on the total volume from both sides.

As a result, orders are grouped and settled collectively — not individually matched. There is no direct counterpart in the transaction, as would be the case in traditional sequential matching engines. Instead, all operations are executed through a central matching intermediary, and the resulting trade tick is a monolithic block of transactions.

This method ensures:

• Fairer price discovery for participants

• Bot-resistant mechanics, making it harder for high-frequency trading algorithms to manipulate markets

• High-performance processing within the internal exchange engine

Dynamic Fee & Limit Management

TrexWallet features a built-in flexible fee configuration system that allows full administration and rule setup without the need for custom coding. The system includes an extensive set of configuration flags and filters to manage fee rules based on:

• Individual user attributes

• User groups

• Input/output network types

• Transaction types

• Currencies

• Referral agents

Key capabilities include:

• Configurable system wallets for collecting fees by specific operation types or globally

• Operational limits for transactions, including minimum and maximum input/output volumes and exchange amounts

• Support for both percentage-based and fixed fees for any given rule

• Dynamic fee adjustments or withdrawals based on real-time changes in blockchain network fees

PWA Template

• A user-friendly Progressive Web App for your personal dashboard. Easily installable, with no storage impact on your device and zero battery drain — built with care for your experience

• Enjoy instant performance and lightning-fast response. Our wallet is free from ads, annoying graphics, or distractions. Even with a slow or minimal connection, you get a modern, high-quality design shaped by real user feedback.