Author

Epameinondas Douros

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Preprint Jul 2026

QuantumChain: Blockchain-Backed Quantum Federated Learning for Financial Fraud Detection

Financial fraud detection is challenged by decentralized data, severe class imbalance, and privacy constraints. This paper presents QuantumChain, a secure Quantum Federated Learning (QFL) framework that combines hybrid quantum-classical neural networks, encrypted federated aggregation, blockchain-based auditability, an...

Epameinondas Douros, Konstantinos Dalampekis, Nouhaila Innan et al. · 0 citations