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Stream/Area:
-
Subject:
-
Paper ID:
IJSREM64599
Volume:
10 |
6 |
Jun 2026
Pages:
1-6
Publication Frequency:
Monthly (12 issues per year)
License:International Journal of Scientific Research in Engineering and Management follows the Creative Commons Attribution 4.0 (CC BY 4.0) License, allowing free use and distribution with proper attribution.
Computer Science and Engineering
St. Johns college of engineering & Technology
Computer Science and Engineering
St. Johns college of engineering & Technology
Computer Science and Engineering
St. Johns college of engineering & Technology
The rapid digital transformation of financial systems has increased the demand for secure, transparent, and tamper-resistant transaction infrastructures that do not rely solely on centralized authorities. This paper presents the design and implementation of an integrated blockchain-based framework developed using Python and the Flask web framework to support secure financial applications. The proposed system combines proof-of-work (PoW) mining, cryptographically secured wallet management, digitally signed transactions, lightweight smart contract execution, role-based access control, and audit logging within a unified web-accessible platform. Unlike many existing academic prototypes that focus on isolated blockchain components, this work delivers a complete end-to-end system that enables users to create wallets, initiate and validate transactions, mine blocks, deploy basic financial contracts, and inspect immutable transaction histories through an intuitive interface. The system is experimentally evaluated in a controlled environment, demonstrating reliable transaction validation, successful detection of tampering attempts, and consistent block generation with an average mining time of a few seconds under moderate difficulty levels. The results highlight the system’s effectiveness as both a practical prototype for secure financial workflows and a scalable educational testbed for blockchain research. By integrating multiple core blockchain functionalities into a single modular architecture, the proposed framework bridges the gap between theoretical models and real-world implementations, offering a foundation for future enhancements in consensus mechanisms, smart contract capabilities, and distributed financial systems.
KEYWORDS
This paper presented the design and implementation of an integrated blockchain framework for secure financial transactions using Python and the Flask web framework. The proposed system successfully combines essential blockchain components, including proof-of-work-based mining, cryptographically secured wallet management, digitally signed transactions, lightweight smart contract execution, role-based access control, and audit logging within a unified and web-accessible platform. The experimental evaluation demonstrates that the system ensures data integrity through cryptographic hashing, enforces transaction authenticity using digital signatures, and maintains transparency via immutable records and audit trails. The results confirm that the framework effectively supports end-to-end transaction workflows, from transaction initiation and validation to block creation and confirmation. Additionally, the user-friendly interface enhances accessibility, allowing both technical and non-technical users to interact with blockchain operations efficiently. Although the system is designed as a lightweight prototype, it successfully bridges the gap between theoretical blockchain concepts and practical implementation. The modular architecture enables flexibility and provides a strong foundation for further enhancements, making the system suitable for academic research, experimentation, and small-scale financial applications.
[1] S. Nakamoto, “Bitcoin: A peer-to-peer electronic cash system,” 2008. [Online]. Available: https://bitcoin.org/bitcoin.pdf [2] V. Buterin, “A next-generation smart contract and decentralized application platform,” Ethereum White Paper, 2014. [3] K. Christidis and M. Devetsikiotis, “Blockchains and smart contracts for the Internet of Things,” IEEE Access, vol. 4, pp. 2292–2303, 2016. [4] M. Crosby, P. Pattanayak, S. Verma, and V. Kalyanaraman, “Blockchain technology: Beyond bitcoin,” Applied Innovation, vol. 2, pp. 6–10, 2016. [5] A. Dorri, S. S. Kanhere, R. Jurdak, and P. Gauravaram, “Blockchain for IoT security and privacy: The case study of a smart home,” in Proc. IEEE Int. Conf. Pervasive Comput. Commun. Workshops, 2017, pp. 618–623. [6] J. Yli-Huumo, D. Ko, S. Choi, S. Park, and K. Smolander, “Where is current research on blockchain technology?—A systematic review,” PLoS One, vol. 11, no. 10, p. e0163477, 2016. [7] A. M. Antonopoulos, Mastering Bitcoin: Unlocking Digital Cryptocurrencies. O’Reilly Media, 2014. [8] S. Li, Z. Li, T. Ramachandran, and S. Zhang, “Permissioned blockchain systems and applications,” in Blockchain Technology and Applications. Springer, 2020, pp. 31–61. [9] G. Wood, “Ethereum: A secure decentralised generalised transaction ledger,” Ethereum Project Yellow Paper, 2014. [10] L. Lamport, R. Shostak, and M. Pease, “The Byzantine generals problem,” ACM Trans. Program. Lang. Syst., vol. 4, no. 3, pp. 382–401, 1982.
Publication Date
6/6/2026
Peer Review Type
Double-Blind Peer Review
Review Rounds: 2
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Conflict of Interest
The authors declare no conflict of interest related to this research work.
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