Developing a Secure and Transparent Blockchain System for Fintech with Fintrust Framework

The rapid growth of Fintech has driven the adoption of blockchain technology for secure, efficient, and tamper-proof digital transactions. However, existing blockchain systems face challenges such as doublespending attacks, inefficient consensus mechanisms, and limited trust management, which hinder their scalability and security. To overcome these issues, this research proposes the Fin Trust Blockchain Framework (FTBF), a multi-layered architecture designed to provide secure, scalable, and transparent solutions for Fintech applications. FTBF integrates Zero Trust Architecture (ZTA) at its core to ensure continuous user, node, and transaction validation. To prevent double-spending attacks, the Dynamic Coin Flow Output Model (DCFOM) tracks unspent transaction outputs, ensuring the uniqueness of digital tokens. The framework also introduces a novel consensus mechanism, the Time Elapsed Stake Secure Algorithm (TESSA), which enhances scalability and energy efficiency. Additionally, the Fair Trust Rating Server (FTRS) dynamically calculates and updates trust scores for network participants, storing them on a trust score ledger for transparency and accountability. FTBF addresses key blockchainsecurity, efficiency, and trust management limitations, paving the way for next-generation Fintech solutions with enhanced scalability, resilience, and transparency.