∴ Introduction ∴ The concept of Islamic banking is grounded in principles that emphasize rights, justice, and public welfare, aiming to manifest human ethics in financial transactions. Unlike conventional banking, Islamic banking prohibits unethical practices such as usury (Riba), risk/uncertainty (Gharar), and trading in forbidden goods. This ethical framework mandates that profits and losses in economic activities must be shared among capital, labor, and management, fostering a fairer financial ecosystem. However, the practical implementation of these principles often encounters challenges due to governance issues, lack of transparency, and bureaucratic inefficiencies. Blockchain technology, with its decentralized, transparent, and secure nature, presents an opportunity to address these challenges. By facilitating peer-to-peer transactions without the need for intermediaries, blockchain can potentially enhance the efficiency and ethical compliance of Islamic banking. This article examines the role of blockchain in realizing the ideals of Islamic banking, with a particular focus on its compatibility with the constitutional framework of the Islamic Republic of Iran. ∴ Research Question ∴ The primary research question of this study is: "what is the capability of blockchain in realizing true Islamic banking?" This question addresses the potential of blockchain technology to align with and enhance the principles of Islamic banking, particularly within the legal and ethical confines of the Iranian constitutional framework. The study seeks to explore whether blockchain can offer a viable solution to the challenges faced by Islamic banking, such as governance issues, lack of transparency, and adherence to Sharia principles. ∴ Research Hypothesis ∴ The research hypothesis posits that blockchain technology is not only compatible with the foundational principles of Islamic banking but also significantly aids in achieving its goals. The hypothesis is based on the premise that blockchain’s inherent characteristics—decentralization, transparency, and security—can enhance the ethical and operational aspects of Islamic banking. Specifically, the hypothesis suggests that blockchain can: Facilitate Sharia-compliant transactions by ensuring transparency and accountability. Reduce operational costs and risks by eliminating intermediaries. Enhance trust and credibility in Islamic financial institutions. Address governance issues through a decentralized and democratic framework. ∴ Methodology & Framework, if Applicable ∴ This study employs a multifaceted methodological approach, incorporating doctrinal, legal, economic, and comparative analyses to investigate the role of blockchain in Islamic banking. The research methodology is structured as follows: Doctrinal Analysis: This involves a detailed examination of Islamic legal principles related to banking and finance, focusing on the ethical and jurisprudential underpinnings of Islamic banking. Legal Analysis: This component analyzes the legal framework governing Islamic banking in Iran, including constitutional provisions and regulatory guidelines. The study assesses how blockchain technology can be integrated into this framework to support Sharia-compliant financial practices. Economic Analysis: The economic implications of adopting blockchain in Islamic banking are examined, particularly in terms of cost efficiency, risk management, and financial inclusion. The analysis considers the potential impact on various stakeholders, including banks, customers, and regulators. Comparative Analysis: This involves a comparative study of three governance models in banking: traditional bureaucracy, private blockchain, and public blockchain. The comparative framework evaluates the effectiveness of each model in terms of transparency, efficiency, and adherence to ethical standards. Framework Application: The application of the research methodology is guided by the following steps: Comparative Evaluation: The three governance models—traditional bureaucracy, private blockchain, and public blockchain—are evaluated against a set of ethical and operational criteria. This evaluation identifies the strengths and weaknesses of each model in supporting the goals of Islamic banking. Policy Recommendations: Based on the findings, the study offers policy recommendations for regulators and financial institutions on how to leverage blockchain technology to enhance the ethical and operational aspects of Islamic banking. By adopting this comprehensive methodological framework, the study aims to provide a detailed and nuanced understanding of the role of blockchain in Islamic banking, with a particular focus on the context of Iran. ∴ Results & Discussion ∴ The investigation into the role of blockchain technology in realizing Islamic banking within the framework of the Islamic Republic of Iran has yielded several key findings. First and foremost, blockchain’s alignment with Sharia and ethical principles is evident in its foundational characteristics. The transparency, immutability, and decentralized nature of blockchain ensure that transactions can be conducted in a manner that upholds justice and fairness, fundamental tenets of Islamic finance. Compatibility with Sharia Principles: The results indicate that blockchain technology does not inherently contradict Sharia financial principles. Smart contracts, which are self-executing contracts with the terms directly written into code, can be designed to comply with Sharia rules. For instance, the prohibition of usury [Riba] can be enforced by coding interest-free transaction terms. Similarly, the avoidance of risk [Gharar] can be ensured through transparent and pre-defined contract conditions. Challenges and Solutions: One significant challenge identified is the anonymity feature inherent in public blockchain networks. While anonymity can protect user privacy, it also poses risks related to organized crime and tax evasion. Advanced solutions from other countries, such as Know Your Customer (KYC) protocols, can be implemented to mitigate these risks. KYC processes are essential to verify user identities and ensure that blockchain applications in Islamic banking remain secure and ethical. Advantages Over Conventional Banking: Blockchain technology offers several advantages over traditional banking practices, particularly in addressing the goals outlined in the Iranian Constitution. These advantages include: Rights and Justice: Blockchain ensures transparent and tamper-proof records of transactions, promoting fairness and reducing opportunities for corruption. This aligns with the constitutional values of justice and equity. Cooperation and Qard al-Hasan: Blockchain facilitates the expansion of cooperative financial practices, such as interest- free loans [Qard al-Hasan]. Smart contracts can automate the management and distribution of these loans, ensuring compliance with Sharia principles and enhancing trust among participants. Preventing Corruption and Collusion: The immutable nature of blockchain records makes it difficult to alter transaction histories, thereby preventing corruption and collusion. This characteristic is vital for maintaining a healthy and stable economy, crucial for addressing economic crises like inflation and injustice. Framework for Implementation: To harness these benefits, it is crucial to establish a regulatory framework that combines the decentralized advantages of blockchain with necessary institutional oversight. This framework should incorporate identity verification mechanisms, compliance with Sharia law, and guidelines for ethical conduct in financial transactions. ∴ Conclusion ∴ The research concludes that blockchain technology is compatible with the ethical and Sharia principles underlying Islamic banking. The implementation of blockchain can address many of the current shortcomings in conventional banking systems, such as corruption, lack of transparency, and inefficiency, which have hindered the full realization of Islamic banking principles. Blockchain’s decentralized and transparent nature aligns well with the goals of Islamic finance, ensuring justice, fairness, and ethical conduct. However, to fully integrate blockchain into Islamic banking, it is essential to address the challenge of anonymity through robust KYC protocols and institutional regulations. This will prevent misuse and ensure that blockchain-based Islamic banking systems are secure and compliant with both ethical standards and Sharia law. Moreover, blockchain can play a significant role in transforming traditional banking roles, potentially rendering them obsolete in the coming decades. The technology’s ability to provide direct peer-to-peer financial services without intermediaries can reduce costs, increase efficiency, and enhance trust in the financial system. In conclusion, while blockchain presents numerous benefits for Islamic banking, its successful implementation requires a balanced approach that leverages its technological advantages while ensuring compliance with ethical and legal standards.