Patient Health Record System using Blockchain Technology

Abstract

The integration of blockchain technology into patient health records (PHRs) presents a transformative solution for healthcare systems worldwide. This abstract outlines the key benefits and objectives of utilizing blockchain in EHR systems. Blockchain ensures data securityand privacy through cryptographictechniques, offering patients greater control over their health information. It establishes a tamper-proof, auditable ledger, guaranteeing data integrityandimmutability. Moreover, smart contractsstreamlineadministrativeprocesses,reducingcosts and errors. Consent management tools allow patients to control data access, ensuring compliance with regulations like HIPAA and GDPR. Thisinnovationfostersinteroperabilityamonghealthcareproviders,facilitatingseamless data sharing and improving care coordination. It empowers healthcare researchandanalytics, securely sharing data while preserving privacy. Standardized data formats enhancecompatibilityamong different PHR systems. Theblockchain\'sscalabilityanddisasterrecoverycapabilitiesensuredataavailabilityandsystemresilience.Byreducingadministrativeoverheadandmedicalerrors,itcontributesto costreductionand improved resource allocation. Integrating blockchaininto EHRsaddresses data security,interoperability,and patient control while reducing costsand enhancing healthcare quality— apromisingadvancementforthehealthcareindustry.

Introduction

Summary:

The healthcare industry faces challenges such as data interoperability, security, privacy, and efficiency. Blockchain technology—with its decentralized, immutable, and transparent nature—offers promising solutions to these issues. This literature review synthesizes research on blockchain applications in healthcare, highlighting benefits, challenges, and future directions.

Key Applications:

• Data Interoperability: Blockchain can break down fragmented data silos by enabling secure, interoperable data sharing among providers, patients, and researchers.

• Data Security and Privacy: Cryptographic methods and distributed ledgers enhance data integrity and protect sensitive patient information.

• Supply Chain Management: Blockchain improves traceability in pharmaceutical and medical device supply chains, helping combat counterfeit drugs.

• Clinical Trials: It streamlines trial management by ensuring data integrity, patient consent, and automating payments via smart contracts.

• Patient Empowerment: Patients gain control over their health data, enabling personalized medicine and better engagement.

Challenges:

• Scalability issues with handling large healthcare datasets.

• Regulatory and legal complexities regarding data privacy and standards.

• Interoperability between different blockchain systems and legacy healthcare infrastructure.

• High costs and technical complexity of implementation.

• Need for clear data governance models.

Future Directions:

• Integrating blockchain with AI and IoT for predictive analytics and remote monitoring.

• Developing interoperability standards for broader adoption.

• Focusing on patient-centric blockchain solutions.

• Exploring hybrid blockchain models balancing security and accessibility.

• Continued research on improving security and privacy.

Conclusion

The purpose of these literature reviews was to collect information on how an information system helped themanagement ofPatientHealthRecords.Basedonthereviews,itwasfoundoutthatweb-basedPatient Health Records systems provide convenience, efficiency and security to the system users and hospitals compared to the manual systems. Mainwork isthatI’ve createdallthearchitecture fora blockchain, froma setofstatetransitionrulestoa method for creating blocks, to mechanisms for checking the validity of transactions, blocks, and the full chain.Thisisanewanduniquewaytodevelopasystemforsecuringhealthdata.ThirdParties,Attacksor any system will take a lot of time to crack this system. We can say it is tough to break the hash and information will be stored with security. It will help the whole human for medical health records Data through blockchain technology.

References

[1] Nakamoto,S.(2008)Bitcoin:Apeer-to-peerelectroniccashsystem.Consulted.,165:55-61. [2] Zhu, Y.,Gan,G.H.,Deng,D.(2016)SecurityResearchinKey TechnologiesofBlockchain. Information Security Research., 12: 1090-1097. [3] Liu,X.F. (2017) Research onblockchain performance improvement of Byzantine fault-tolerant consensus algorithm based on dynamic authorization. Zhejiang University. [4] Wang,X.,Lai,X.,Feng,D.(2005)CryptanalysisoftheHashFunctionsMD4andRIPEMD. Advances in Eurocrypt., 3494: 1-18. [5] Shen,Y.,Wang,G.(2017)ImprovedpreimageattacksonRIPEMD-160andSHA-160.Ksii Transactions on Internet & Information Systems., 12: 727-746. [6] Wang,H.Q., Wu, T. (2017) Cryptography in Blockchain. Journal of Nanjing University of Posts and Telecommunications., 37: 61-67. [7] Yuan,Y.,Wang,F.(2016) Current Statusand Prospectsof BlockchainTechnology Development. Acta Automatica Sinica., 42: 481-494. [8] Miyaji,A.(1994) EllipticCurves Suitable for Cryptosystems.IeiceTransactions on Fundamentals of Electronics Communications & Computer Sciences., 77: 98-105. [9] He,P.,Yu, G., Zhang,Y.F. (2017)Prospective reviewof blockchain technology and application. Computer Science., 44: 1-7. [10] Zhai, S.P., Li, Z.Z. (2018)The data block chain of the key technologies Consistency. Computer Technology and Development., 8: 1-6. [11] An,Q.W.(2017)Researchandapplicationofkeytechnologiesfordecentralizedtransactions based on blockchain. Donghua University. [12] ResearchGate [13] GitHub [14] Benchoufi,M.,&Rida,A.(2017).Towardsablockchain-basedtraceabilitysystemforthedrug supply chain. International Journal of Engineering Business Management, 9, 229-239. [15] Casino,F.,Dasaklis,T.,&Patsakis,C.(2019).Asystematicliteraturereviewofblockchain-based applications: Current status, classification and open issues. Telematics and Informatics,36,55- 81. [16] Dagher,G.G., Mohsen,A.,Yakoub,L., & Babaei,R. (2018). Ancile: Privacy -preserving frameworkforaccesscontrolandinteroperabilityof electronichealthre cordsusingblockchain technology. Sustainable cities and society, 39, 283-297. [17] Ekblaw,A.,Azaria,A.,Halamka,J.D.,&Lippman,A.(2016).Acasestudyforblockchainin healthcare: “MedRec” prototype for electronic health recordsand medical research data. In Proceedings of IEEE Open &Big Data Conference (BigDataService) [18] Kshetri,N.(2018).Blockchain’srolesinmeetingkeysupplychainmanagementobjectives. InternationalJournalofInformationManagement,39,80-89. [19] Kuo,T.T.,Kim,H.E.,&Ohno-Machado,L.(2017).Blockchaindistributedledgertechnologies for biomedical and health care applications. JournaloftheAmerican Medical Informatics Association, 24(6), 1211-1220. [20] Roehrs,A.,daCosta,C.A., &Righi,R.D.R.(2019).OmniPHR:Adistributedpatient-centered health record systemto improve privacy and interoperability. Journal of medical Internet research, 21(8), e13627. [21] Swan,M.(2015).Blockchainthinking:Thebrainasadecentralizedautonomouscorporation. IEEETechnologyandSocietyMagazine,34(4) [22] Yaga,D.,Mell,P.,Roby,N.,&Scarfone,K.(2019).Blockchaintechnologyoverview.National Institute of Standards and Technology. [23] Zhang,Y.,Deng,Y.,Zhang,Z.,Zhu,L.,&Gu,T.(2018).Privacy-preservingfederatedlearningin fog computing. IEEE Internet of Things Journal [24] S.Khezr,M.Moniruzzaman,A.Yassine,R.BenlamriBlockchaintechnologyinhealthcare:acomprehensivereviewanddirectionsforfuture researchAppl.Sci.,9(9)(2019),p.1736ViewatpublisherCrossrefViewinScopusGoogleScholar [25] T.Kumar,V.Ramani,I.Ahmad,A.Braeken,E.Harjula,M.Ylianttila Blockchain utilisation in healthcare: key requirementsand challenges [26] In2018IEEE20thInternationalConferenceonE-HealthNetworking,Applicationsand Services (Healthcom), IEEE (2018 Sep 17), pp. 1-7GoogleScholar [27] G.Moona,M.Jewariya,R. Sharma Relevanceofdimensionalmetrologyinmanufacturingindustries MAPAN, 34 (2019), pp. 97-104, 10.1007/s12647-018-0291-3 ViewatpublisherViewinScopusGoogleScholar [28] M.H.Kassab,J.DeFranco,T.Malas,GiuseppeDestefanisLaplante,V.V.Neto Exploring researchinBlockchain for healthcare anda roadmap for the future IEEE Trans. Emerg. Top. Comput. (2019)1-1 GoogleScholar [29] B.Shen,J.Guo,Y.YangMedChain:efficienthealthcaredatasharingviaBlockchain Appl. Sci., 9 (6) (2019), p. 1207CrossrefViewinScopusGoogleScholar [30] U.Chelladurai,S.PandianAnovelblockchainbasedelectronichealthrecordautomationsystemforhealthcareJ.AmbientIntell.HumanizedComput.(2021) Google Scholar [31] P. Zhang, D.C. Schmidt, J. White, G. LenzBlockchaintechnologyusecasesinhealthcareAdvancesinComputers,vol.111,Elsevier(2018Jan1),pp.1-41 ViewPDFViewarticleGoogle Scholar [32] I.Yaqoob,K.Salah,R.Jayaraman,Y.AlHammadiBlockchainforhealthcaredatamanagement:opportunities,challenges,andfuture recommendationsNeuralComput.Appl.(2021Jan7),pp.1-6 Google Scholar [33] X.Liang,J.Zhao,S.Shetty,J.Liu,D.LiIntegratingblockchainfordatasharingandcollaborationinmobilehealthcareapplications [34] 2017,IEEE28th AnnualInternational Symposiumon Personal,Indoor, and MobileRadio Communications (PIMRC), IEEE (2017 Oct 8), pp. 1-5GoogleScholar [35] A.Varshney,N.Garg,K.S.Nagla,etal.Challengesinsensorstechnologyforindustry4.0forfuturisticmetrologicalapplications MAPAN, 36 (2021), pp. 215-226, 10.1007/s12647-021-00453-1ViewinScopusGoogleScholar [36] T.McGhin,K.K.Choo,C.Z.Liu,D.HeBlockchaininhealthcareapplications:researchchallengesandopportunitiesJ. Netw. Comput. Appl., 135 (2019 Jun1), pp. 62-75 ViewPDFViewarticleView inScopusGoogle Scholar [37] X.Yue,H.Wang,D.Jin,M.Li,W.JiangHealthcare data gateways: found healthcareintelligenceonBlockchain withnovelprivacy risk controlJ.Med.Syst.,4 0(10)( 2016Oct),pp.1-8

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Copyright © 2025 Nandita Das. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.