Indonesia's national engineering accreditation system faces systemic inefficiencies, governance limitations, and data integrity challenges that hinder international recognition under the Washington Accord and impede the global mobility of engineering graduates. These shortcomings are compounded by fragmented audit trails, opaque decision-making processes, and vulnerability to credential fraud, which undermine trust in accreditation outcomes. This study aims to design a model-based system engineering framework for a blockchain-enabled accreditation system that enhances data integrity, transparency, and traceability to support evidence-based decision-making and Washington Accord compliance. A Systematic Literature Review (SLR) guided by the PRISMA protocol was conducted, synthesizing insights from 109 selected studies on blockchain implementation in accreditation and credential verification systems. The study adopts a Model-Based System Engineering (MBSE) approach using the Requirement-Functional-Logical-Physical framework to translate requirements into a structured system architecture. The proposed framework integrates Hyperledger Fabric as a permissioned blockchain network for immutable record-keeping and the InterPlanetary File System for decentralized off-chain document storage, creating a hybrid on-chain/off-chain architecture. The resulting five-layer framework comprises Participants, Digitalized Access Points, Communication, Distributed Ledgers, and Existing IT Systems layers. Key findings demonstrate that the proposed architecture significantly enhances data integrity through cryptographic verification, provides transparent and tamper-proof audit trails for all accreditation activities, enables real-time verification of document authenticity, and supports interoperability among diverse stakeholders. The framework strengthens decision-making by providing verifiable evidence for informed judgments, ensuring accountability through transparent record-keeping, and enabling cross-border trust in accreditation decisions. This research concludes that the blockchain-IPFS integrated framework offers a scalable and trustworthy pathway for transforming Indonesia's engineering accreditation system, addressing both domestic governance challenges and international compliance requirements under the Washington Accord.
Risqy Pradana Putra, Fara Triadi -, Ahmad Rofiq Hakim
Perkembangan teknologi informasi mendorong penerapan sistem yang lebih efisien dan transparan dalam manajemen gudang. Penelitian ini bertujuan merancang sistem manajemen gudang berbasis QR Code dan Blockchain untuk meningkatkan akurasi, keamanan, dan efisiensi pelacakan barang. Sistem mengintegrasikan mikrokontroler ESP32, modul GM65 barcode scanner, printer thermal, dan UPS sebagai sumber daya mandiri. QR Code digunakan untuk identifikasi dan pelacakan barang secara real-time, sedangkan Blockchain memastikan data transaksi tersimpan secara aman, transparan, dan tidak dapat diubah. Penelitian menggunakan metode Waterfall yang meliputi analisis kebutuhan, perancangan, implementasi, dan pengujian sistem. Hasil pengujian menunjukkan bahwa sistem mampu melakukan pencatatan, pemindaian, dan pembaruan data stok secara real-time dengan tingkat akurasi yang tinggi. Sistem ini memberikan solusi yang efektif untuk meningkatkan efisiensi operasional, keamanan data, dan transparansi dalam pengelolaan gudang berbasis Internet of Things (IoT).
Tingginya risiko manipulasi data dan lemahnya sistem autentikasi tradisional menimbulkan tantangan serius dalam menjaga keamanan identitas digital. Dampak dari permasalahan ini adalah meningkatnya potensi pencurian data, penyalahgunaan identitas, serta rendahnya tingkat kepercayaan terhadap sistem keamanan digital yang ada. Untuk menjawab tantangan tersebut, penelitian ini mengembangkan sistem autentikasi wajah berbasis blockchain yang aman, transparan, dan terdesentralisasi. Sistem dirancang dengan memanfaatkan algoritma SHA-256 untuk mengubah data wajah menjadi hash yang tidak dapat dibalik, sehingga menjaga privasi dan integritas data pengguna. Informasi identitas dicatat ke dalam blockchain melalui smart contract berbasis Ethereum yang dijalankan menggunakan Ganache, dengan bahasa pemrograman Python dan pustaka face_recognition sebagai deteksi wajah serta web3.py untuk integrasi blockchain. Hasil penelitian menunjukkan sistem mampu mengenali wajah secara akurat, memverifikasi identitas secara real-time, serta memastikan data tidak dapat dimanipulasi karena tercatat dalam blockchain. Sistem ini dapat dimanfaatkan oleh institusi pendidikan, perusahaan, maupun instansi pemerintah untuk meningkatkan keamanan akses, sistem absensi, serta perlindungan data sensitif. Penelitian selanjutnya dapat diarahkan pada implementasi di jaringan testnet Ethereum publik agar mendekati skenario dunia nyata, termasuk pengujian biaya gas, performa transaksi, serta integrasi dengan aplikasi berbasis mobile.
Penelitian ini bertujuan untuk merancang dan membangun aplikasi pengelolaan sertifikat digital berbasis Non-Fungible Token (NFT) pada jaringan blockchain Solana. Aplikasi ini memungkinkan pengguna untuk membuat, memverifikasi, dan mentransfer sertifikat dalam bentuk NFT yang aman dan terdesentralisasi. Pengujian dilakukan dalam dua aspek utama: fungsional dan performa. Hasil pengujian fungsional menunjukkan tingkat keberhasilan 100%, yang mengindikasikan bahwa seluruh fitur utama aplikasi berjalan sesuai ekspektasi. Dari sisi performa, pembuatan NFT membutuhkan waktu rata-rata 29 detik dengan biaya 0.00008 SOL, verifikasi NFT berlangsung sangat cepat dalam 1.5 detik tanpa biaya, dan transfer NFT memakan waktu 19 detik dengan biaya yang sama seperti pembuatan. Hasil ini menunjukkan bahwa aplikasi mampu menjalankan fungsinya secara efisien dan ekonomis di atas jaringan Solana. Penelitian ini memberikan kontribusi dalam pemanfaatan teknologi blockchain untuk pengelolaan dokumen digital yang transparan dan aman.
Student Attendance is part of the academic curriculum, student needs to attend classes for lectures which is part of the major reason for coming to school for study. Keeping the attendance record safely, transparent, immutable and easily accessible is very essential. This study aims at designing a Wi-Fi attendance system that can allow a student to mark attendance with their phone or laptop, the record will be saved on distributed and decentralized blockchain. This attendance system is implemented in such a way that students will mark their attendance by inputting their unique student number on a webpage after they have initiated a connection with the Wi-Fi microcontroller module installed in the classroom, This record is been logged and arranged on a server database with time in and time out, the student name, student number, date, course ID and it can be generated for every registered student. The generated attendance can be uploaded to a node in a blockchain via the internet. The generated attendance record can easily be accessed with data reliability, and transparency with the aid of peer-to-peer features of distributed ledger to be available to other parties such as a parent, student or anyone on the network.
Cryptocurrency adalah sebuah teknologi berbasis blockchain yang sering digunakan pada saat ini sebagai mata uang digital. Bentuk cryptocurrency di minati oleh masyarakat karena pengelolaannya yang terdesentraliasi, prosesnya yang mudah, serta memungkinkan transaksi tanpa perlu adanya perantara pihak ketiga. Teknologi internet of things (IoT) telah memberikan pengaruh besar terhadap perkembangan informasi yang didapatkan untuk memantau secara langsung perubahan informasi tanpa memerlukan adanya interaksi dari manusia ke manusia ataupun dari manusia ke perangkat komputer, seperti menampilkan stabilitas cryptocurrency terutama pada Bitcoin, Ethereum, dan Binance. Penelitian ini bertujuan untuk memonitoring data secara real time dengan menggunakan aplikasi Thingspeak.com, Arduino IDE sebagai pemroses data, dan jalur pengiriman data secara real time memanfaatkan, modul ESP8266. Hasil implementasi olahan data ditampilkan pada layar oled.
Heru Saputra, Bebby Ilham Aresta, Tri A Sundara, Ilfa Stephane · 5 authors
A diploma is a document of recognition of learning achievement from a level of education obtained after completing the study period after passing the final exam. The importance of the certificates' existence for working purposes has resulted in the proliferation of making and using fake certificates for various purposes such as applying for jobs, fulfilling the requirements to become members of the legislature, etc. The Diploma Information System using blockchain-based distributed computing can be one way to maintain the diploma's authenticity and validity. This study uses the waterfall method with several applications, ethereum remix ideas, ganache, and metamask, aiming to develop blockchain-based diploma information on STMIK Indonesia Padang by utilizing blockchain technology.
Abstract This system is designed by using Lolin D32 as the processor dan MPL3115A2 for the sensors. This system is designed to show that devices that based on Internet of Things (IoT) could be secured by using blockchain technology. The blockchain technology is based on Ethereum which will be tested in Ropsten Testnet network. Processor module connects to Internet through WiFi module which is one of the Lolin D32 features. This WiFi module connects to router which is used for designing and testing the system. This system wants to prove that the data which are acquired from sensor module MPL3115A2 (altitude, temperature and pressure) and positioning data could be sign and verify within the processor Lolin D32. Before sending the data, the data will be formatted. Data will be stored in smart contract. The smart contract is an Ethereum program which is written using Solidity language. This smart contract is delployed into Ropsten network. The numbers of testing that have been carried out are 516 times. These testings proved as success. The data which were sent to Ropsten network could be proved that they were recorded successfully. These are done by checking through etherscan.io.