ASEGUNLOLUWA E. BABALOLA, DAVID O. ILESANMI, PREYE ADEOLA
Electronic voting can improve the speed of ballot processing and result generation, but conventional systems often depend on centrally controlled infrastructure that may create concerns relating to record alteration, transparency and administrative control. This study presents the development of a blockchain based electronic voting prototype that integrates election creation, candidate management, voter address authorization, ballot submission and result retrieval within a web application. The system adopts an Ethereum based architecture comprising a Next.js user interface, Web3 communication, MetaMask wallet connection, Solidity smart contracts and a local blockchain environment provided by Ganache. A factory smart contract is used to create separate election contracts, enabling each election to maintain its own candidates, authorized voter addresses, election status and vote totals. Before a ballot is accepted, the relevant election contract verifies that the election is active, that the submitting address is authorized and that the address has not previously voted. The developed prototype provides interfaces for election creation, voting and result presentation, demonstrating the integration of the web application with the smart contract and blockchain components. The study provides a basis for the independent management of multiple elections through separate smart contract instances.
Ethereum sebagai platform smart contract banyak digunakan untuk dApps, namun Ethereum (Layer 1) masih menghadapi kendala skalabilitas ketika aktivitas transaksi meningkat, yang berdampak pada kemacetan jaringan, naiknya latensi, dan biaya transaksi yang tinggi. Makalah ini menyajikan kajian literatur yang berfokus pada rollups sebagai solusi utama Ethereum Layer 2 untuk mengurangi beban pemrosesan transaksi pada Layer 1. Metode yang digunakan adalah literature review terarah dengan sintesis tematik terhadap literatur yang membahas: sumber masalah skalabilitas di Ethereum Layer 1, konsep dan arsitektur rollups, perbedaan Optimistic Rollups dan Zero-Knowledge Rollups, serta tantangan implementasi rollups pada kondisi nyata. Hasil kajian menunjukkan bahwa rollups menjadi pendekatan dominan karena menggabungkan transaksi dalam batch untuk diproses di Layer 2, lalu melaporkan ringkasan/bukti ke Layer 1 sehingga efisiensi biaya dan kapasitas transaksi meningkat. Namun, efektivitas rollups bergantung pada aspek operasional dan keamanan seperti ketersediaan data, mekanisme penarikan dana, serta risiko ketergantungan pada operator/penyedia infrastruktur. Secara keseluruhan, rollups efektif sebagai solusi skalabilitas Ethereum, tetapi memerlukan penguatan desain keamanan dan keandalan operasional agar dapat diadopsi lebih luas.
This dissertation mostly focuses on a block-chain based voting systems. It aims at identifying the strategies and the guidelines as well as provides a comprehensive end-to-end electronic voting system based on block-chain, with the help of encryption private and public techniques such as zero-knowledge proofs to improve privacy. The proposed method is to provide Security and Privacy, Transparency and Trust, Accessibility, Efficiency and Convenience to voters and Security and Fraud Prevention in Election Outcomes. The proposed online voting system using cloud-based hybrid block-chain technology eradicates the flaws that persist in the existing voting system, and it is carried out in three phases: The registration phase, Vote casting phase and Vote counting phase. The integration of SHA-512 encryption ensures that the voter's identity remains confidential and the integrity of the vote is maintained. The system also demonstrates improved security, reduced operational cost, real-time vote counting, and transparency for both voters and election authorities. The proposed method shows better result as compare to other previous method in terms of different result parameters such as block size, encryption, decryption, Block size (64 bits), Word size, hash output and number of Rounds. In the nut shall the proposed method perform better due to SHA 512 technique and provide better security as compare to other methods.
Prof. Suvarna A. Bahir, Tejas Vaidya, Ranjeet Waghmode, , Abhishek Gavand, · 5 authors
Electronic voting systems have gained significant attention due to their ability to improve the efficiency and accessibility of elections. However, traditional voting methods and centralized electronic voting systems face challenges such as vote tampering, lack of transparency, unauthorized access, and delayed result generation. Blockchain technology offers a decentralized and secure solution to address these limitations. This paper presents a Secure Blockchain-Based E-Voting System Using Smart Contracts that leverages Ethereum blockchain technology to provide transparent, secure, and tamper-resistant elections. The proposed system integrates voter authentication, election management, candidate registration, vote recording, and real-time result monitoring within a single platform. Smart contracts developed using Solidity are used to automate election operations and ensure the integrity of voting transactions. The system is implemented using HTML, CSS, JavaScript, FastAPI, MySQL, Ethereum, Ganache, and MetaMask. Votes are securely recorded on the blockchain, preventing unauthorized modifications and improving election transparency. The proposed framework enhances voter trust, reduces dependency on centralized authorities, and simplifies election management. This solution can be effectively used for academic institutions, organizations, and small-scale election environments requiring secure and reliable voting processes. Keywords: Blockchain, Electronic Voting, Ethereum, Smart Contracts, Solidity, Decentralized Voting.
Teknologi informasi dan komunikasi kini sebagai media yang memfasilitasi berbagai kegiatan di GKPS Cililitan. Salah satunya adalah untuk proses pemilihan personel pada masa periodisasi Gereja. Pada saat ini proses pemilihan personel di GKPS Cililitan masih dilakukan secara manual, dimana masih menggunakan kertas untuk menulis nama kandidat pilihan dan papan untuk proses penghitungan yang juga secara manual di saksikan oleh seluruh anggota rapat yang hadir. Tujuan penelitian ini adalah untuk mempermudah proses periodisasi di GKPS Cililitan, baik secara proses pemilihan dan proses penghitungannya yang dapat di pantau secara realtime sehingga proses pemilihan bisa diselesaikan lebih cepat. Metode penelitian yang digunakan yaitu metode penelitian action research dengan pendekatan kualitatif serta pengembangan sistem yang digunakan yaitu metode prototyping. Dalam pembuatan sistem ini menggunakan bahasa pemrograman Typescript, Javascript, Solidity, CSS serta menggunakan framework Next.JS 14 dan Hardhat yang dikemas dalam 1 bundle development kit Scaffold.eth. Hasil penelitian ini adalah sebuah sistem pemilihan elektronik berbasis web3 dan teknologi blockchain yang diharapkan dapat membantu mengelola proses pemilihan serta penghitungan suara secara realtime di GKPS Cililitan.
Bitcoin adalah aset kripto terdesentralisasi yang dikarakteristikkan oleh volatilitas harga ekstrem dan fluktuasi non-linear, sehingga pergerakan harga di masa depan sangat sulit untuk diprediksi secara akurat. Ketidakstabilan inheren ini mendorong kebutuhan mendesak akan metode peramalan komputasi tangguh yang mampu menangkap dependensi temporal jangka panjang yang kompleks dalam data deret waktu univariat. Penelitian ini bertujuan untuk mengimplementasikan dan mengevaluasi efektivitas arsitektur Transformer berbasis Deep Learning untuk peramalan harga penutupan Bitcoin. Memanfaatkan dataset historis komprehensif dari tahun 2015 hingga bulan April 2026, penelitian ini mendayagunakan mekanisme self-attention sebagai inti arsitektur Transformer guna memproses data sekuensial secara dinamis. Pendekatan mutakhir ini berhasil mengatasi keterbatasan utama dari model analitik tradisional dalam menangkap pola temporal penting. Kerangka metodologi yang diterapkan mencakup operasi pra-pemrosesan data secara ketat melalui fungsi MinMaxScaler, proses pelatihan model yang dioptimalkan oleh algoritma Adam, serta pengujian out-of-sample komprehensif guna memproyeksikan perilaku pasar masa depan. Performa prediktif model dievaluasi secara kuantitatif menggunakan metrik kesalahan standar. Hasil empiris penelitian menunjukkan tingkat akurasi prediksi yang sangat luar biasa, di mana model yang dikembangkan sukses mencapai nilai Root Mean Square Error (RMSE) sebesar $3.818,34, nilai Mean Absolute Error (MAE) sebesar $2.866,73, dan nilai Mean Absolute Percentage Error (MAPE) sebesar 3,12%. Lebih lanjut, proyeksi masa depan out-of-sample menghasilkan angka prediksi sebesar $78.247,73 dibandingkan dengan harga penutupan aktual senilai $78.294,00, yang merepresentasikan persentase tingkat rasio kesalahan absolut minim yakni hanya 0,059%. Temuan analitis ini mengonfirmasi bahwa model Transformer berhasil memitigasi overfitting dan unggul memodelkan volatilitas pasar ekstrem. Kesimpulannya, model ini siap mendukung keputusan investasi para praktisi keuangan global.
Penelitian ini berfokus pada pengembangan framework autentikasi tanpa kata sandi (passwordless) berbasis Web3 yang diimplementasikan pada platform mobile guna mengatasi kerentanan metode tradisional terhadap serangan phishing dan brute force. Framework yang diusulkan mengintegrasikan aplikasi mobile dengan backend Node.js/Express.js dan smart contract standar ERC-5192 pada jaringan Ethereum Sepolia Testnet sebagai representasi identitas digital Soulbound Tokens (SBT) yang permanen dan non-transferable. Demi menjaga privasi, sistem ini menerapkan teknologi Zero-Knowledge Proof (ZKP) berbasis zk-SNARKs skema Groth16 menggunakan Circom dan SnarkJS yang dieksekusi di sisi klien (client-side browser) menggunakan WebAssembly (WASM), serta dipadukan dengan struktur data Merkle Tree tingkat kedalaman 20 dan mekanisme nullifier untuk mencegah replay attack. Hasil pengujian menunjukkan tingkat keberhasilan autentikasi mencapai 100% dari 50 kali percobaan. Pemindahan beban komputasi sirkuit ZKP (5.359 konstrain) ke sisi klien terbukti efisien dengan waktu eksekusi komputasi lokal jika diakumulasikan dari tahap awal koneksi wallet (0,8 detik), pembuatan witness (1,2 detik), pembuatan proof (4,8 detik), hingga verifikasi smart contract (210 ms), maka Total Authentication Time adalah sebesar 6,3 detik. Nilai ini membuktikan kelayakan framework ini sebagai solusi manajemen identitas yang aman, privat, dan responsif.
Yusuf Tojiri, Maulana Arif Komara, Alfri Adiwijaya, Nasrul Hidayat · 6 authors
This study proposes an IPFS-based system for automatic digital intellectual property registration within Web3 platform environments. The rapid development of digital technology has encouraged the transformation of Intellectual Property Rights (IPR) protection from manual systems to more secure and efficient digital mechanisms. However, current IPR registration processes remain centralized, slow, and vulnerable to data tampering. Based on this issue, this study aims to design and test an automatic IPR registration system using the InterPlanetary File System (IPFS) as a decentralized storage solution. This research employs a software engineering method with a prototyping approach that includes the design of a user interface, integration of the IPFS API, implementation of an automatic hash-generation system, metadata storage in a database, and issuance of digital certificates. Testing results show that the system can automatically register digital works, generate unique and consistent file hashes, upload files to IPFS with an average upload time of less than two seconds, and provide global accessibility through a distributed network. In addition, the system is capable of validating the authenticity of a work by matching the hash and metadata listed in the digital certificate. Based on these findings, it can be concluded that the use of IPFS in digital IPR registration systems is effective in enhancing security, efficiency, and transparency, although further development is required in relation to integration with national legal frameworks and formal legal recognition.
I Putu Wahyu Krisna Permadi, Made Adi Paramartha Putra, Ida Bagus Kresna Sudiatmika
Industri tanaman hias aglonema memiliki nilai ekonomi yang tinggi dan membutuhkan sistem pencatatan varietas yang akurat serta dapat ditelusuri. Namun, pencatatan varietas tanaman saat ini masih didominasi oleh sistem terpusat yang rentan terhadap perubahan data dan kurang transparan. Permasalahan utama yang dihadapi adalah sulitnya menjamin keaslian, asal-usul, dan riwayat distribusi varietas tanaman aglonema secara terpercaya. Penelitian ini bertujuan untuk merancang dan mengembangkan prototype aplikasi terdesentralisasi (Decentralized Application/DApp) sebagai media pencatatan varietas tanaman aglonema berbasis teknologi blockchain. Metode penelitian dilakukan melalui pengembangan sistem menggunakan jaringan Polygon dengan penerapan smart contract standar ERC-721 untuk merepresentasikan setiap varietas tanaman sebagai aset digital unik (Non-Fungible Token), serta integrasi dompet Web3 sebagai mekanisme autentikasi pengguna. Hasil pengujian terhadap prototype menunjukkan bahwa sistem mampu mencatat data varietas secara permanen, tidak dapat diubah, dan mudah ditelusuri. Selain itu, penggunaan jaringan Polygon memungkinkan proses pencatatan berjalan efisien dengan biaya transaksi yang rendah. Hasil penelitian ini menunjukkan bahwa teknologi blockchain berpotensi meningkatkan transparansi dan keamanan pencatatan varietas tanaman aglonema.
In blockchain ecosystems, maintaining transparency and privacy has become an ethical dilemma. This is because, while certain specific information of the user is shared to ensure transparency of transactions across networks, such information could be detrimental to the user, as there is a possibility of it being tampered with. For instance, in the Catalyst voting process in Cardano, users can still see the amount of ADA tokens being held by other users, which can influence their voting options, especially when large ADA holders vote in support of certain ideas or proposals. To discourage such challenges as voter manipulation and vote buying, this study proposed the implementation of zero-knowledge proof (ZKP) in blockchain ecosystems to enhance the transparency of the catalyst voting process and enhance efficiency and speed of result release. Using survey questionnaire and a multivocal literature review, this study was able to proof that ZKP cannot only be applied in the catalyst voting process to enhance its transparency, but also addressed potential challenges to its applications such as scalability, encourage trust and fairness of the voting system, and improve voter participation due to its user-friendliness. Mathematical models emphasize scaled voting as optimal for balancing inclusion and plutocratic control.
Kenneth Richard Dike, Ugbari Augustine, Martha Ozohu Musa
Delays and security remain major issues in traditional manual voting, while in the emerging electronic voting, trust and privacy remain issues in its adoption. This research presents the design and development of a secure electronic voting protocol that combines biometric verification of a standard identity with cryptography to preserve election integrity. This research follows the Design Science Research Methodology, producing the protocol as an artefact, beginning with quick work on it and iteratively improving it during development. The proposed architecture uses a combined National Identity verification and Liveness detection procedure for user authentication, ensuring voter uniqueness and preventing impersonation. It also integrates the RSA blind signature protocol to prevent direct linking of votes to their voters. It uses Paillier encryption to safeguard votes both in transit and at rest, and this encryption scheme has a homomorphic property that enables aggregation of encrypted votes and decryption of the final tally. It uses the SHA-256 cryptographic hashing algorithm, the HMAC authentication technique and the AES-GCM encryption to secure the integrity of data. It also uses zero-knowledge proofs to demonstrate the correctness of encrypted votes and decrypted tallies. Testing showed that it prevented a photo spoofing attempt and also blocked authentication using a person’s mother’s identity data. Also, when the blinded vote is compared with the unblinded, via local logs on the development system, there is no direct link. The whole system shows a secure electronic voting protocol that is easy to use and can be trusted.
Traditional paper-based voting system for student organization leaders election has issues related to security, transparency, and trust. This research addressed these issues by implementing a blockchain on e-voting system utilizing smart contracts to ensure the security and transparency of the voting process. The system was developed using the agile software development life cycle (SDLC) methodology and was tested using black-box and system usability scale (SUS) method to evaluate its functionality and usability. Security testing was conducted through unit testing on the smart contract and block verification within the Sepolia network. The results showed that the decentralized e-voting system could prevent vote manipulation and detecting duplicate voters, as evidenced by the unit testing of the smart contract, which confirmed that recorded votes could not be manipulated and attempts to submit multiple votes were detected and rejected. Meanwhile, system transparency was demonstrated through direct verification using a block explorer, showing that the entire voting process and the smart contract code were publicly accessible and transparent. The system was successfully simulated on a small scale within a student organization, and usability testing using the SUS method was conducted with 30 respondents. The test resulted in a score of 72 points, indicating that the system was in the good category and was well accepted by users. Therefore, the decentralized approach in this e-voting system has been proven to enhance transparency and overcome the problems of security issues in the voting process.
In democratic systems, secure and transparent voting mechanisms are essential to maintain public trust and electoral integrity. Traditional paper-based and centralized electronic voting systems often face challenges such as limited transparency, risk of data manipulation, and dependence on centralized authorities. To address these issues, this project proposes a decentralized blockchain-based voting system designed to enhance security, transparency, and reliability. The system is developed on the Ethereum blockchain, where each vote is recorded as an immutable transaction to prevent tampering or duplication. Smart contracts written in Solidity automate essential election functions including voter registration, vote validation, and result computation. A web-based interface built using React.js and Web3.js enables secure interaction with the blockchain, while wallet-based authentication ensures that each authorized user can cast only one vote The system is implemented and tested in a controlled environment to evaluate performance, accuracy, and resistance to double voting.
Disha Pardeshi, Sujata Sathe, Viha Bakshi, Ananya Mary Sebastian
AbstractThe growing need for secure and transparent electoral systems highlights the challenges faced by Non-Resident Indian (NRI) voters. Current rules requiring physical presence at polling stations limit participation, despite rising registrations. In our proposed blockchain-based voting framework, votes are transmitted through a secure virtual private network (VPN) and authenticated at the Election Commission of India (ECI) gateway node. After authentication, the votes are verified across multiple blockchain nodes using a consensus mechanism. Once validation is completed, the votes are permanently recorded in the distributed ledger, ensuring that they cannot be altered or removed. Smart contracts are employed to automate the vote-counting process, reducing manual intervention and minimizing the possibility of human error. The final election results are then made available through the ECI dashboard, enabling transparency and easy verification by authorized stakeholders.The proposed framework aims to improve accessibility for Non-Resident Indian (NRI) voters by enabling secure remote participation while preserving voter anonymity. By strengthening trust in the electoral system and encouraging wider participation, the solution supports improved electoral integrity. Overall, the integration of blockchain technology into the voting process contributes toward building a more transparent, secure, and inclusive democratic system in India.Keywords: Blockchain, NRI Voting, Distributed Ledger, Electoral Integrity, Consensus Mechanism, Immutability, Voter Anonymity.
Iman Kusnadi, Catharina Badra Nawangpalupi, Carles` Sitompul
The Proof of Delivery (POD) document is essential for confirming the receipt of products and facilitating invoice generation in logistics operations. The persistent reliance on physical papers results in inefficiencies, including document loss, verification delays, and restricted visibility. This research introduces a blockchain technology-based smart contract POD system designed to enhance operational transparency, security, and efficiency. A case study at an Indonesian logistics company evaluates the transition from a manual to a digital Proof of Delivery (POD) process through prototype development and field trials. Essential findings indicate that blockchain facilitates unalterable, instantaneous documentation and verification, whereas smart contracts streamline multi-phase validation processes. The suggested approach decreases verification time from 20 days to mere minutes, mitigates human error, and enhances invoice precision. The prototype of a smart contract application suggests faster processing times and lower costs per transaction, among other benefits. Errors of inputs are also reduces, indicating a significant boost in data accuracy.
Perkembangan cryptocurrency, khususnya ethereum telah menarik perhatian banyak kalangan karena volatilitas harga yang tinggi karena dipengaruhi oleh faktor-faktor ekonomi dan sentimen pasar. Penelitian ini bertujuan untuk menganalisis hubungan antara sentimen pengguna twitter dengan fluktuasi harga ethereum menggunakan teknologi Natural Language Processing (NLP) dan Machine Learning (ML). Metode yang digunakan mencakup pengumpulan data tweet tentang ethereum, pra-pemrosesan data, serta analisis sentimen menggunakan algoritma Naïve Bayes. Data harga ethereum diperoleh dari sumber informasi kripto. Hasil analisis menunjukkan bahwa meskipun terdapat fluktuasi antara sentimen positif dan negatif di twitter, korelasi antara sentimen publik dan pergerakan harga ethereum sangat lemah, dengan nilai koefisien korelasi yang rendah
Penelitian ini bertujuan untuk membuktikan secara empiris (Proof-of-Concept) bahwa Bahasa Indonesia memiliki kapasitas leksikal untuk menggantikan peran Bahasa Inggris dalam protokol BIP-39 tanpa mendegradasi keamanan matematis sistem. Metode yang digunakan adalah eksperimental terapan dengan mengembangkan wordlist 2048 kata Bahasa Indonesia dan mengimplementasikan algoritma derivasi kunci pada lingkungan browser extension. Hasil pengujian menunjukkan bahwa sistem mampu menghasilkan entropi 128-bit yang ekuivalen dengan standar NIST serta berhasil melakukan tanda tangan digital (ECDSA) yang valid pada jaringan Ethereum Sepolia. Kesimpulan: Bahasa Indonesia terbukti memiliki kesetaraan fungsional dalam konteks kriptografi terapan, namun penggunaannya dibatasi sebagai eksperimen riset dan bukan untuk menggantikan standar global. DISCLAIMER: Penelitian ini bersifat eksperimental. Wordlist Indonesia tidak kompatibel dengan wallet standar (MetaMask, Ledger, dll). Seed phrase yang dibuat tidak dapat di-import ke wallet lain.
Muh. Rafianto, Erick Irawadi Alwi, St. Hajrah Mansyur
Sistem identitas digital konvensional seringkali bergantung pada otoritas terpusat yang rentan terhadap kebocoran data dan manipulasi. Komunitas Developer Student Club Universitas Muslim Indonesia (DSC UMI) memerlukan mekanisme verifikasi keanggotaan yang kredibel, aman, dan menjaga privasi pengguna. Penelitian ini bertujuan untuk mengimplementasikan sistem identitas digital terdesentralisasi yang terintegrasi penuh pada platform Android menggunakan teknologi blockchain dan Zero-Knowledge Proofs (ZKP) yang merujuk pada seluruh logika sistem, termasuk interaksi blockchain dan kriptografi, yang diproses secara mandiri pada sisi klien (backendless) tanpa ketergantungan pada server perantara. Metode pengembangan menerapkan pendekatan Minimum Viable Product (MVP) dengan arsitektur mobile-first. Sistem dibangun berbasis Android native menggunakan bahasa Kotlin yang diintegrasikan dengan jaringan Polygon Amoy Testnet melalui pustaka Web3j. Autentikasi memanfaatkan sensor biometrik lokal untuk membangkitkan bukti kriptografis berbasis hash SHA-256 tanpa menyimpan data mentah di server. Hasil pengujian white box menunjukkan bahwa aplikasi berhasil menghubungkan dompet digital MetaMask, memvalidasi logika anti-duplikasi pada Smart Contract, dan secara otomatis menerbitkan Soulbound Token (NFT) sebagai tanda keanggotaan yang sah. Kesimpulannya, integrasi blockchain pada perangkat bergerak terbukti efektif menghadirkan identitas digital yang berdaulat (Self-Sovereign Identity), transparan, dan dapat diaudit (auditable) tanpa mengorbankan privasi data anggota komunitas.
pada level bytecode.Penelitian ini mengimplementasikan metode deteksi malicious smart contract berbasis opcode menggunakan Graph Neural Network (GNN) dengan representasi Control Flow Graph (CFG) pada dataset Forta Network yang terdiri dari 139.600 kontrak dengan rasio ketidakseimbangan kelas 936:1 (149 malicious berbanding 139.451 benign).Setiap smart contract direpresentasikan sebagai CFG di mana basic block menjadi node berfitur 22 dimensi yang terdiri dari frekuensi 14 sensitive opcode dan representasi one-hot tipe instruksi exit, sedangkan hubungan antar blok direpresentasikan sebagai edge dengan lima kategori.Graf yang
Open access
Computer Science and Engineering
Information Retrieval and Data Mining
Physical Unclonable Functions (PUFs) and Hardware Security
Voting is a cornerstone of democracy, enabling individuals to choose their leaders and influence decisions shaping their communities and future. Traditional voting systems, however, face numerous challenges, such as long queues, paper-based inefficiencies, and security vulnerabilities. To address these issues, blockchain technology has emerged as a transformative solution, leveraging its decentralized and secure infrastructure. This paper presents a blockchain-based e-voting system aimed at enhancing accessibility, security, and efficiency. By utilizing the Ethereum blockchain and smart contracts, the system ensures transparency, immutability, and tamper-proof vote recording. Furthermore, the integration of AI-powered facial recognition technology reinforces identity verification, guaranteeing that only authorized voters participate. Comprehensive testing, including simulations and stress analyses, confirms that the proposed model enhances the voting process by offering a secure, user-friendly, and reliable digital platform. This research highlights the potential of combining blockchain and AI to modernize voting systems, fostering trust and inclusivity in democratic processes. This paper introduces a blockchain-based e-voting system that simplifies the voting process while ensuring maximum security and trust. By using the Ethereum blockchain and smart contracts, votes are recorded and verified securely, leaving no room for manipulation. To make the system even more robust, AI-powered facial recognition is integrated to confirm voter identity, ensuring only eligible individuals can participate. The system has been tested extensively to ensure it’s not only secure but also easy to use, providing a seamless experience for voters. This combination of blockchain and AI has the potential to revolutionize voting, making it fairer, more inclusive, and efficient for everyone.
Ridwan Yusuf, Andreas Perdana, Febri Sugandi, Untoro Apsiswanto
Smart contract pada platform Ethereum mengelola aset finansial bernilai besar, namun sifat immutable membuat kerentanan kode berdampak permanen sebagaimana ditunjukkan kasus The DAO, Parity Wallet, dan Ronin Bridge. Dua pendekatan pendeteksian kerentanan telah berkembang luas: static analysis yang memeriksa kode sumber atau bytecode tanpa eksekusi, dan dynamic analysis yang menjalankan kontrak pada lingkungan simulasi dengan masukan terstruktur. Keduanya memiliki trade-off kecepatan, cakupan, dan tingkat false positive yang berbeda, namun perbandingan sistematis pada lingkungan pengembangan lokal Indonesia menggunakan alat versi terbaru masih jarang dilakukan. Artikel ini memaparkan rancangan penelitian eksperimental kuantitatif yang akan membandingkan Slither (static) dengan Foundry dan Echidna (dynamic) pada dataset 25 smart contract Solidity yang mencakup lima kategori kerentanan utama: reentrancy, integer overflow, access control, unchecked return values, dan unbounded loop. Metrik perbandingan meliputi precision, recall, F1-score, dan waktu komputasi. Kontribusi yang diharapkan adalah kerangka komparatif yang dapat menjadi rujukan praktis bagi pengembang Web3 Indonesia dalam memilih alat keamanan dan strategi pengujian hibrid yang sesuai dengan tingkat risiko proyek serta sumber daya tim.
Digital certificate forgery remains a real problem in education and employment because traditional verification processes rely on centralized databases, are vulnerable to manipulation, and often take a long time. This study designs and implements a blockchain-based digital certificate verification system that models certificates as Non-Fungible Tokens (NFTs) using the ERC-1155 standard on the Manta Pacific Layer 2 network and incorporates a Soulbound Token (SBT) mechanism to ensure that certificates cannot be transferred. The research adopts a prototyping method through eight stages, starting from architecture design and prototype development to the integration of ERC-1155 smart contracts with IPFS and wallets, as well as testing of minting functions, QR code-based verification, and rejection of asset transfers. The results demonstrate successful on-chain certificate issuance with significantly reduced transaction costs compared to ERC-721-based certificates on Layer 1 networks reported in previous studies, while maintaining a decentralized audit trail. The SBT implementation successfully rejects every attempt to transfer certificates to other wallets, thereby preventing the sale or illicit transfer of credential ownership. These findings indicate that the combination of ERC-1155, SBT, and IPFS on a Layer 2 network has strong potential as an efficient, secure, and practically adoptable digital certificate verification model for educational institutions.
This study investigates how smart contract-driven queue management can be utilized to increase online ticket purchasing efficiency via blockchain technology. The system is designed to manage ticket purchase queues transparently and securely, using smart contracts written in the Solidity programming language and the Ionic UI framework. In addition, the system is connected with MetaMask as a transaction wallet, allowing users to purchase tickets directly and securely. Ganache serves as a testing environment for replenishing wallet balances without involving real transactions. The First In First Out (FIFO) approach is used to manage the transaction queue, with the first purchased ticket being processed first by the administrator. The administrator accepts each transaction, which is then confirmed by MetaMask. When the transaction is confirmed, the system automatically updates the ticket status. The implementation results show that this system effectively optimizes ticket transaction management transparently and securely. This work also makes a significant contribution to the application of blockchain technology for better management of online ticket purchasing systems, as well as minimizing the possibility of transaction errors and fraud.
Herman Herman, Rinday Zildjiani Salji, Herman Yuliansyah
This research studies implementation of decentralized applications (DApps) that are combined with blockchain technology and IPFS for storing patient medical data. The goal of this research is to increase the security, transparency, and access control of stored medical data to make sure only legitimate users can access the data. The proposed system uses smart contracts on the Ethereum network to handle user rights of access (doctors, patients, and admins) and ensure data integrity through the blockchain immutability feature. Patient medical records are retained in IPFS and traced using the Content Identifier (CID). Implementation outcome reveals that the system can safely process medical information, keeping patients in full control of their information, and restricting data access only to scheduled time. This system also shows the potential of blockchain and IPFS technology-based applications in achieving a more efficient health ecosystem focused on safeguarding people's data.