Chen Tian Universe, payment architect specializing in domestic payments, global cross‑border clearing, core banking, and digital payment scenarios. Notable works: “Ten‑Thousand‑Word: Fundamentals of International Payment Clearing”, “35,000‑Word: Core Payment Systems”, “19,000‑Word: Payment Clearing Ecosystem”, “88 Diagrams: Connecting Payment Clearing”, etc.
This article explains the comprehensive design of a payment channel cost billing system, covering business scenarios, various billing models, protocol and rule management, the end‑to‑end calculation process, product architecture, and step‑by‑step guidance for adding new billing scenarios.
Payment security encompasses protecting sensitive data, preventing transaction tampering, fraud, and service attacks; this comprehensive guide details the main threats, core safeguards such as encrypted storage and transmission, digital signatures, PCI compliance, key management, and practical encryption algorithms like AES and RSA for robust, real‑world implementations.
This article provides a comprehensive overview of cross‑border payment systems, covering key concepts such as VA, OSA, FTN, and NRA accounts, foreign‑exchange controls, SWIFT, CIPS, CHIPS, the architectural differences from domestic payments, business and product structures, and a detailed end‑to‑end transaction case study.
This article provides a comprehensive, easy‑to‑understand overview of futures contract concepts, trading systems, clearing and settlement processes, margin rules, participant roles, accounting treatment, and data considerations across China’s six major futures exchanges, illustrated with clear diagrams and examples.
This article explains how to design, implement, and operate a payment channel management system, covering scenarios from single to multiple channels, detailed payment flow analysis, overall architecture, channel information management, routing logic, result‑code mapping, and refund‑overdue handling.
This comprehensive guide explains what payment channels are, how they are classified, their structural relationships, criteria for selecting the right channel, step‑by‑step integration processes, system design for channel management, and practical tips for handling card BIN, signing records, and exception handling.
This article introduces a clear analysis framework that uses a single diagram to break down both information and fund flows across any payment scenario, detailing key elements, analysis methods, and a practical case study.
This comprehensive guide explains what a settlement system is, outlines ten critical design steps—from data source identification to bill provision—and illustrates their application across diverse scenarios such as corporate welfare platforms, government services, promotion platforms, bank acquiring, points e‑commerce, ETC, and consumer finance, while highlighting key rules, workflows, and interface considerations.
This article explains what payment chargebacks are, outlines the Visa chargeback workflow, details the most common dispute reasons, and provides practical solutions and preventive measures that merchants can implement to reduce chargeback risk and improve customer experience.
This comprehensive article explains the concept of aggregated payment, its basic principles, system architecture, product features, business models, advantages, risk points, merchant onboarding processes, payment routing, accounting, industry policies, and future development directions, providing a full picture of this emerging fintech solution.
