International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 13 Issue: 03 | Mar 2026 www.irjet.net p-ISSN: 2395-0072
Trusted Crowd Funding Using Blockchain
Mr Y.Guravaiah1 , K.Manikanta2 , K.Vijay3 , K.Venu4
1 Associate Professor, Department of Computer Science and Engineering 2,3,4 B.Tech Students, Department of Computer Science and Engineering
Teegala Krishna Reddy Engineering College , Telangana, India
Abstract - Crowdfunding platforms have become an important mechanism for raising funds for social causes, startups, and community projects. However, most existing crowdfunding systems operate on centralized architectures whereasingleauthority managestransactionsanduserdata. Thiscentralizedcontrolcreatesseveralchallengessuchaslack of transparency, risk of data manipulation, limited trust among donors, and vulnerability to cyberattacks or server failures. Donors often have no clear visibility into how their contributions are utilized, which reduces confidence in the system To overcome these limitations, this research proposes a Trusted Crowdfunding Platform using Blockchain Technology.Theproposedsystemleveragesthedecentralized nature of blockchain to ensure secure, transparent, and tamper-proof financial transactions. Each transaction is recordedas ablockinadistributedledgerandlinkedthrough cryptographic hash codes, making the data immutable and verifiable across multiple nodes. The platform utilizes smart contracts implemented in Solidity and deployed on the Ethereumblockchaintoautomatekeyoperationssuchasuser registration, fund transfers, and transaction verification.
The system allows users to create blockchain accounts, add funds, transfer money to other blockchain users, and monitor transaction history in real time. Since the data is distributed across multiple nodes, any unauthorized modification can be easily detected through hash validation. This decentralized architecture eliminates the single point of failure present in traditional systems and enhances trust among donors and fundraisers. The proposed solution improves security, transparency, accountability, and reliability incrowdfunding platforms. By integrating blockchain technology with crowdfunding mechanisms, the system establishes a trustworthy environment where contributors canconfidently track and verify how their funds are utilized.
Key Words: Blockchain, Crowdfunding, Smart Contracts, Ethereum, Decentralization, Transparency, Distributed Ledger, Secure Transactions.
1.INTRODUCTION
The rapid growth of internet-based platforms has significantly transformed the way individuals and organizationsraisefundsforvariouscauses.Crowdfunding has emerged as a popular method for collecting financial supportfromalargenumberofcontributorsthroughonline platforms. It is widely used to support startups, social initiatives,disasterrelief,andinnovativeprojects.However,
most existing crowdfunding platforms rely on centralized systemswherealltransactionsanduserdataarecontrolled by a single authority. This centralized architecture raises concernsrelatedtotransparency,security,andtrustamong donorsandfundraisers.Withtheincreasingneedforsecure and transparent financial systems, blockchain technology hasgainedattentionasapromisingsolutionforaddressing thesechallenges[1],[2].Traditionalcrowdfundingplatforms operate using centralized databases managed by a single organization. In such systems, donors contribute funds throughanintermediaryplatform,whichisresponsiblefor managing and distributing the collected funds to project owners.Althoughthisapproachsimplifiesmanagement,it createsseverallimitations.Donorsoftenlackvisibilityinto how their contributions are used, which can lead to trust issues and reduced participation. Moreover, centralized systemsarevulnerabletocyberattacks,datamanipulation, and system failures. According to previous studies, the absenceoftransparencyandaccountabilityremainsamajor challengeinexistingcrowdfundingplatforms[2],[3].
Blockchain technology is a distributed ledger system that records transactions across multiple nodes in a network. Each transaction is stored as a block and linked to the previousblockusingcryptographichashfunctions,creating an immutable chain of records. This decentralized architecture ensures that no single entity has complete controloverthedata,therebyimprovingtransparencyand security.Onceatransactionisrecordedontheblockchain,it cannot be modified without consensus from the network participants.Researchershavehighlightedthatblockchain can enhance trust in digital systems by providing secure, verifiable, and tamper-proof transaction records [4], [5]. Smartcontractsareself-executingprogramsstoredonthe blockchainthatautomaticallyenforcepredefinedrulesand conditions. These contracts eliminate the need for intermediaries by automating processes such as fund transfers,verification,andtransactionvalidation.Platforms such as Ethereum enable developers to implement smart contractsusingprogramminglanguageslikeSolidity.Smart contracts ensure that funds are transferred only when specificconditionsaremet,therebyincreasingreliabilityand reducingthechancesoffraudormisuse.Previousresearch has demonstrated the effectiveness of smart contracts in improving transparency and efficiency in financial applications[6],[7].
Theintegrationofblockchaintechnologywithcrowdfunding platformsprovidesadecentralizedapproachthataddresses
Volume: 13 Issue: 03 | Mar 2026 www.irjet.net p-ISSN: 2395-0072
the limitations of traditional systems. By recording all transactions in a distributed ledger, donors can track the movementoffundsandverifytheirusageinrealtime.The useofcryptographictechniquesensuresdataintegrity,while smart contracts automate key operations such as user registration,fundtransfers,andtransactionverification.Asa result, blockchain-based crowdfunding platforms offer improved transparency, security, and trust among stakeholders.Severalstudieshavesuggestedthatblockchain hasthepotentialtorevolutionizecrowdfundingbyproviding areliableandaccountablefinancialecosystem[8]–[10].
2. PROPOSED SYSTEM
TheproposedsystemintroducesaBlockchain-basedtrusted crowdfundingplatformdesignedtoovercomethelimitations of traditional centralized crowdfunding systems. In this approach, all transactions related to fundraising, fund transfers,anduseractivitiesarerecordedonadistributed blockchain ledger, ensuring security, transparency, and immutability. By leveraging blockchain technology and smartcontracts,thesystemeliminatestheneedforacentral authoritytomanagefinancialtransactionsanddatastorage. The system allows users to create blockchain accounts, deposit funds, send money to other blockchain users, and monitor their transaction history. Every transaction performed within the platform is stored as a block that is linked to the previous block using cryptographic hash functions, ensuring that once a transaction is recorded, it cannot be altered or deleted,thereby providinga tamperprooftransactionhistory.
The architecture of the proposed system is based on a decentralized blockchain network where multiple nodes maintaincopiesofthedistributedledger.Eachnodeverifies and validates transactions before adding them to the blockchain,whichremovesdependencyonasinglecentral server and prevents failures caused by server crashes or cyberattacks. The blockchain network ensures that every transaction is verified through consensus mechanisms, makingitdifficultforunauthorizeduserstomanipulatedata. Since all participantsshare thesameledger, transparency and accountability are significantly improved. The system furtherincorporatessmartcontractswritteninSolidityand deployedontheEthereumblockchain,whichautomatekey operations such as user registration, fund transfer, and transactionvalidation.Whenauserperformsatransaction, thesmartcontractautomaticallyverifiestheconditionsand executes the operation if all requirements are satisfied, eliminatingmanualinterventionandreducingthepossibility offraudorerrorswhilemaintainingverifiabletransaction records. The user module provides functionalities that enableparticipantstointeractwiththeplatformbycreating accounts, managing blockchain wallets, and performing secure financial transactions. Users can register, log in, access a dashboard that displays account balance and transaction details, deposit funds into their blockchain
account, transfer money to other users, view complete transaction history, update their profile information, and securelylogoutofthesystem.Allfinancialtransactionsare recordedontheblockchainasimmutableblockscontaining detailssuchassenderaddress,receiveraddress,transferred amount, and a unique hash code. Before a transaction is confirmed, it is validated by the blockchain network, and once verified, it is permanently added to the blockchain, ensuring transparency and auditability. The system also incorporatesstrongsecurityandtransparencymechanisms, including an immutable ledger that prevents data modification, distributed storage that eliminates single points of failure, cryptographic hashing to maintain data integrity, real-time transaction tracking for users, and automatedsmartcontractsthatensureaccurateandsecure executionofalloperations.
3. IMPLEMENTATION DETAILS
TheimplementationoftheproposedTrustedCrowdfunding SystemusingBlockchainfocusesonintegratingblockchain technology with a web-based platform to provide secure, transparent, and tamper-proof financial transactions. The system combines blockchain networks with modern web technologies to enable users to perform crowdfunding activities such as registering accounts, transferring funds, andmonitoringtransactionrecords.Bystoringtransaction dataonadistributedblockchainledger,thesystemensures that all records are immutable and verifiable by network participants.Theimplementationinvolvesdevelopingsmart contracts, designing an intuitive user interface, and integrating blockchain transactions with the backend application. The development of the system is carried out using a combination of blockchain frameworks and web technologies.ThefrontendisdesignedusingHTML,CSS,and JavaScript to create an interactive and user-friendly interface.ThebackendisimplementedusingPython-based frameworks such as Flask or Django, which handle communication between the user interface and the blockchainnetwork.Theblockchaincomponentisbuilton the Ethereum platform, which supports decentralized applications and smart contracts. Smart contracts are writteninSolidityanddeployedontheEthereumblockchain toautomateoperationssuchasuserregistration,transaction verification, and fund transfers. Tools such as Truffle and Ganacheareusedfordevelopingandtestingsmartcontracts inalocalblockchainenvironmentbeforedeployment.Smart contractsformthecoreofthesystemastheymanageand control crowdfunding operations automatically. These contractsexecutepredefinedruleswithoutrequiringmanual intervention,ensuringthatalltransactionsfollowsecureand verified conditions. The smart contracts handle key functionalities such as registering users, managing wallet addresses, transferring funds between accounts, and recording transaction data on the blockchain. Each transactioninitiatedbyauserisverifiedthroughthesmart
Volume: 13 Issue: 03 | Mar 2026 www.irjet.net p-ISSN: 2395-0072
contract before being added to the blockchain, reducing humanerrorandpreventingunauthorizedactivities.
The user interface is designed to provide a simple and accessible platform for donors and fundraisers to interact withthesystem.Userscanregister,login,viewtheiraccount balance,andperformtransactionswithoutneedingtechnical knowledgeofblockchaintechnology.Theinterfaceincludes essentialpagessuchasregistration,login,dashboard,fund deposit, fund transfer, transaction history, and profile management. Each component communicates with the backendserver,whichinteractswiththeblockchainthrough smart contract calls, ensuring secure and seamless operation. The system follows a structured workflow for processingblockchaintransactions.Whenauserinitiatesa transaction, the request is processed by the backend application, which then communicates with the smart contract deployed on the Ethereum blockchain. The blockchain network verifies the transaction based on predefinedconditions,andoncevalidated,thetransactionis recordedasablockintheblockchainledger.Eachblockis linkedtothepreviousoneusingcryptographichashcodes, ensuring immutability. After successful processing, the systemupdatestheuserinterfaceandstoresthetransaction detailsinthetransactionhistory.
Security is a fundamental aspect of the implementation. Blockchain technology ensures data integrity through cryptographichashinganddecentralizedstorage.Eachblock containsauniquehashthatsecuresthechainandprevents datamodification.Thedecentralizednetworkeliminatesthe riskofasinglepointoffailure,asmultiplenodesmaintain copiesoftheledger.Evenifonenodeiscompromised,the integrity of the system remains intact. Additionally, smart contractsenforcestrictvalidationrules,ensuringthatonly authorized transactions are executed. These features collectively enhance the security, transparency, and reliabilityoftheproposedcrowdfundingplatform.
4. RESULTS AND PERFORMANCE ANALYSIS
The proposed Trusted Crowdfunding System using Blockchain was successfully implemented and tested to evaluate its functionality, security, and transparency. The system demonstrates how blockchain technology can be used to manage crowdfunding transactions in a decentralizedandreliablemanner.Duringtesting,multiple users were able to register onthe platform, deposit funds intotheirblockchainaccounts,transferfundstootherusers, andverifytransactionhistoryinrealtime.Theexperimental results show that the system effectively records every transactionontheblockchainledger,ensuringdataintegrity andpreventingunauthorizedmodifications. Theimplementedplatformprovidesauser-friendlyinterface that allows users to interact with blockchain technology without requiring technical knowledge of decentralized systems.Userscansecurelylogintothesystem,accesstheir
dashboards, and perform financial operations such as depositingfundsortransferringmoneytootherblockchain users. The use of smart contracts ensures that each transactionisautomaticallyvalidatedandrecordedonthe blockchainnetwork.Thisprocessimprovesreliabilityand eliminates the need for manual verification by administrators.Thesystemalsoimprovestransparencyby providingacompletetransactionhistoryforeachuser.All transactionsperformedintheplatformarestoredasblocks in the blockchain ledger and can be viewed by the users through the transaction history page. Because blockchain records are immutable, once a transaction is confirmed it cannot be altered or deleted. This ensures trust between donorsandfundraisersbyallowingthemtoverifyhowfunds aretransferredandusedwithintheplatform.
Performance evaluation of the system indicates that blockchain-based transaction management improves securityandreducestheriskoffraudordatatampering.The decentralized architecture eliminates the single point of failure commonly found in centralized crowdfunding platforms. Even if one node in the network fails, the remaining nodes maintain the integrity of the distributed ledger. Additionally, cryptographic hashing mechanisms ensurethatanyattempttomodifytransactiondatacanbe easilydetected.
Figure 1 shows the User Dashboard Interface of the BlockchainCrowdfundingPlatform.Thedashboardprovides anoverviewoftheuser’saccountdetails,availablebalance, andnavigationoptionsforperformingfinancialtransactions such as depositing funds or transferring money to other users.Thisinterfaceallowsuserstomanagetheirblockchain accounts efficiently while maintaining secure interaction withtheblockchainnetwork.
Fig. 1. User Dashboard of the Blockchain Crowdfunding Platform
Volume: 13 Issue: 03 | Mar 2026 www.irjet.net p-ISSN: 2395-0072
Figure2showstheTransactionHistoryPageoftheSystem, which displays detailed records of all transactions performedbytheuser.Thepageincludesinformationsuch as the transaction source, amount transferred, and timestamp. This feature demonstrates the transparency provided by blockchain technology, as users can verify all theirfinancialactivitiesdirectlyfromthesysteminterface.
The results confirm that the proposed blockchain-based crowdfunding platform successfully provides secure fund management,transparenttransactiontracking,andreliable decentralized operation. The system demonstrates the potential of blockchain technology in improving trust, accountability, and efficiency in online crowdfunding platforms.
5. CONCLUSIONS
In this research, a Trusted Crowdfunding Platform using BlockchainTechnologyhasbeenproposedandimplemented to address the limitations of traditional centralized crowdfundingsystems.Existingplatformsoftensufferfrom issues such as lack of transparency, risk of data manipulation,limitedtrustbetweendonorsandfundraisers, and vulnerability to single points of failure. The proposed system leverages blockchain technology to create a decentralized and secure environment where all financial transactions are recorded on an immutable distributed ledger.ByintegratingEthereum-basedsmartcontracts,the system automates essential operations such as user registration,fundtransfers,andtransactionverification.This automation eliminates the need for intermediaries and reduces the chances of fraud or human error. Each transactionisstoredasablockintheblockchainandlinked usingcryptographichashcodes, ensuring thattransaction datacannotbemodifiedonceithasbeenrecorded.
Theimplementationresultsdemonstratethattheproposed platform provides improved security, transparency, and reliability compared to traditional crowdfunding systems. Users can monitor their transaction history in real time,
verifyfundtransfers,andsecurelyinteractwiththeplatform through a user-friendly interface. The decentralized architecture also eliminates the single point of failure, making the system more resilient to cyberattacks and system crashes. Overall, the proposed blockchain-based crowdfunding platform successfully enhances trust and accountability among donors, fundraisers, and platform operators.Thesystemhighlightsthepotentialofblockchain technologyintransformingdigitalfundraisingplatformsby providing a transparent, secure, and efficient method for managingfinancialtransactions.
6. FUTURE WORK
Although the proposed Blockchain-based Trusted Crowdfunding System provides improved transparency, security,andreliability,thereareseveralopportunitiesfor further enhancement and development. Future work can focus on improving the scalability, functionality, and realworld applicability of the system. One potential improvement is the integration of advanced blockchain networks and scalability solutions to support a larger number of users and transactions. Technologies such as Layer-2scalingsolutionsoralternativeblockchainplatforms can be explored to reduce transaction costs and increase system performance. This would make the platform more suitableforlarge-scalecrowdfundingapplications.Another importantdirectionforfutureworkistheimplementationof real-time monitoring and analytics tools. These tools can providedetailedinsightsintofundraisingactivities,donation trends, and project performance. Such analytics can help fundraisersbetterunderstanddonorbehaviorandimprove the effectiveness of crowdfunding campaigns. Future research can also explore the integration of identity verification mechanisms to enhance security and prevent fraudulent activities. Technologies such as digital identity systemsorKnowYourCustomer(KYC)verificationcanbe incorporated to ensure that users on the platform are authenticatedandtrustworthy.Inaddition,thesystemcan beextendedtosupportmobileapplicationssothatuserscan accessthecrowdfundingplatformthroughsmartphonesand other portable devices. A mobile interface would improve accessibilityandallowdonorstocontributetoprojectsmore conveniently. Another possible enhancement is the incorporationofArtificialIntelligenceandMachineLearning techniques to detect suspicious transactions and predict fraudulent activities. Intelligent models could analyze transaction patterns and automatically flag unusual behavior, thereby strengthening the security of the crowdfundingplatform.
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Fig. 2. Transaction History Showing Blockchain-Based Fund Transfers
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 13 Issue: 03 | Mar 2026 www.irjet.net p-ISSN: 2395-0072
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