Surjandy Surjandy, Meyliana Meyliana, Andreas Raharto Condrobimo, Henry Antonius Eka Widjaja · 5 authors
A smart contract is a business process agreed upon to run. With a smart contract, all business processes can run automatically after the smart contract receives a trigger and cannot be canceled or changed. Previous research on smart boxes is generally only used for health storage of smart drugs. In this study, facilitated off-chain blockchain model MSCWR SmartBox will focus on shipping for logistics, such as for the use of shipping goods such as valuables. This research focuses on creating an off-chain blockchain smart contract model that is written in pseudocode to support the operations of the MSCWR SmartBox. The creation of off-chain blockchain smart contracts is very important in supporting the MSCWR business process. Making off-chain blockchain Smart Contracts is very important considering the business processes that create follow the Multichain process (Blockchain applications for cryptocurrencies without changing the multichain application). The research method used is user-centered design (UCD). In this study, we use an application prototype approach, use multichain as a blockchain platform and use the environment at BeeBlock Laboratories. The validation and testing of the equipment used with proof of logs from the server show that the smart contract created can be used to support the business processes of the MSCWR SmartBox.
Cryptocurrencies have emerged in recent years and have continued to grow until they have become very popular, widespread, and surrounded by various pros and cons of their innovative developments. This study uses sentiment analysis on Twitter towards cryptocurrencies to create positive and negative trends based on comments by classifying data on Twitter. The dataset used is a Tweet related to cryptocurrency in June 2022. To get positive or negative sentiment of this research using SVM classification method with the following stages. The dataset goes through the stages of preprocessing, labeling, imbalance handling, train test split, TF-IDF weighting to transform the data from text to numeric which are then used for sentiment analysis using SVM. This research resulted in sentiment analysis based on the TextBlob library to determine positive sentiment and negative sentiment. The accuracy of the application of SVM in this study is known through the use of k-fold cross validation and three methods, namely undersampling, without imbalance handling and oversampling and three comparisons of train test splits, namely 90:10, 80:20, and 70:30. In k-fold cross validation, an accuracy of 93. 19% was obtained. While the other three methods, obtained three highest accuracy where the accuracy is in a ratio of 80:20, namely 94.64% for undersampling, 93.42% for data without imbalance handling, and 93.40% for oversampling. The best accuracy is in the data that goes through the undersampling process with a ratio of 80:20 which is of 94.64% and the sentiment analysis result is a positive sentiment.
The supply chain is a critical process involving farmers, buyers, suppliers, and many more entities. The entire system of farming and agriculture is based on it. The conventional method is very tedious and causes issues at multiple levels. AI and Blockchain are the two most used technologies nowadays. We are proposing an AI-enabled Blockchain ecosystem for the supply chain in Agriculture. A case study is given to explain the possibilities of the proposed model. The entire process of supply chain management has been transformed by artificial intelligence. AI plays a vital role in the warehousing process in collecting and analyzing information and inventory processes, enabling companies to increase efficiency and boost revenue. Precisely, AI predicts demand, modifying orders and rerouting products in transit. Major companies such as Google and Amazon have invested considerably in AI. Blockchain technology has been used in several areas, such as insurance, natural state, and securing personal information. Agriculture is one such field where Blockchain is being used extensively for the development and reformation of its various aspect. Unlike conventional, centralized and monopolistic agricultural management systems have been evolved. Blockchain provides a decentralized data structure to store and retrieve shared data with multiple un-trusted parties. The technology offers several advantages, including eliminating the dependenon the centralized supply chain management database, which is also referred to as single point failure, and the high cost due to verifying and monitoring transactions by third-party users. Figure.4 explains the blockchain process.
In the era of the digital revolution as it is today, technology is widely applied as the main thing in all fields of science. However, the current problem is that it is difficult to get information with the development of technology. Because many operations are performed manually, searching for customer information, entering inventory items, and payment transactions, the data display time required is very long for the user. As well as to record reports including paper, notes, receipts, pens, etc. When an error occurs during input, the device is often used simultaneously. This research aims to help overcome the problem of using Bitcoin cryptocurrency technology in payment systems for education in Indonesia. This research method uses Agile Software Development method with the Scrum type and DLCS (Digital Learning Chain Scheme) use a DApps Blockchain approach to build strategies, and use Google Forms to collect information through digital observations and questionnaires. Based on the characteristics of the system, the Slovin formula was used to analyze different aspects of the excellent design, and the result 0.840 > 0.6 was used for processing; if alpha > 0.6, then the system can be classified as "reliable." Reliability test to show that the assessment is based on the questionnaire provided. This research hopes to establish new normality in implementing bitcoin and provides a rather complicated technical so that the effect can be achieved if applied to the education sector. Novelty in this research system will store information about all member providers in the network to validate transactions.
Decentralized transactions and transaction management in the form of the Bitcoin cryptocurrency are part of Blockchain Technology. This Blockchain idea was created in 2008 by Satoshi Nakamoto. The attributes of Blockchain contain the importance of providing security, anonymity and integrity of transactions without third-party companies, which makes an exciting area due to Blockchain’s general and decentralized nature. In this study, systematic mapping observations were used to collect all applicable studies on Blockchain generation. This goal is supported by understanding Blockchain research topics, situations that demand development, and future guidance on technicalities in the Blockchain era. The author has successfully researched forty-one major papers from several scientific paper publishers. The results of this study show that more than 80% of Blockchain papers use Bitcoin and the rest check other Blockchain attributes such as security using smart contracts. In this study, the authors specialize in reducing the limitations of using Blockchain from a privacy and security perspective. However, among the solutions presented, there is a lack of concrete evaluations of their effectiveness. This research produces a novelty in the form of suggestions for the use of Blockchain that can be used by leading to Education 4.0.
Heriyanti Heriyanti, Nur Azizah, Galih Putra Cesna, Nesti Anggraini Santoso · 5 authors
The emergence of the blockchain technology revolution in several industries is a privilege because it has opened many opportunities in research. Thus, blockchain has gained much hope from the research community. In recent years, the change in research on the blockchain has developed rapidly into a trend that has led to further research for a more detailed analysis of the current knowledge systems in the field. Meanwhile, there is still a lack of in-depth exploration of blockchain in bibliometric reporting. This study aims to address the gap by analyzing the scope of blockchain research activities carried out to date. This study uses bibliometric analysis using VOSviewer to analyze the Scopus database in a collection of more than 500 articles published between 2016 and 2021 containing the author, number of citations, journal source, publisher, institution, country, year of publication, category, and author keywords. Need to be analyzed. This study presents the latest trends and abstracts of Blockchain research from several bibliometric perspectives.
In this disruptive 4.0 era, many generations are competing in creating a new innovation, it makes technological growth increase sharply, one of which is blockchain technology. This technology has ledgers that are simultaneously decentralized and distributed. There is a node that functions to record all transaction histories on the Blockchain with all different networks. Blockchain This is certainly a very practical and safe technology for the world of education, one of which is Gamification. Gamification itself means a concept that has layers of features like a game that is connected or integrated with the blockchain. Gamification provides opportunities for the world of education by creating game elements that focus on the orientation of creating new educational spaces. This study uses the analisis Gamifikasi method and SWOT analysis to determine the overall use of the system starting from the strategies, opportunities, strengths and weaknesses. With this research, it is hoped that gamification in the blockchain system can run optimally in improving the implementation of Blockchain technology in the world of education. The novelty of this research is to apply a concept that has a feature layer such as a game that is connected or integrated with a block chain.
Dewi Sri Surya Wuisan, Tarisya Ramadhan, Shofiyul Millah, Chandra Lukita · 6 authors
One of the key advancements in the development of smart grids is the use of transactive energy, which utilizes distributed energy resources like smart grids Contributions In today’s industrial era, where technology is developing very quickly, it is essential to use electricity as needed to prevent loss, waste, and supply shortages "Smart Electric" or "Smart Grid" design is strongly advised in this situation The following advantages in terms of cost-effectiveness are anticipated: Large enough for even technical solutions to be taken into account. This will be implemented extensively by key electricity companies Utilizing transactive energy in a smart grid, however, introduces new security issues such unauthorized energy transfers Novelty This study proposes a Blockchain based smart contract architecture with fully decentralized capabilities for dependable and inexpensive transactive energy. The Blockchain, which has a high replication rate and provides stronger security against manipulation, is used to record energy transaction data These enhancements can be made via Blockchain technology Blockchain technology is confirmed as a promising option to raise the share of renewable energy after the development of renewable energy and how it interacts with Blockchain technology are examined. The various Blockchain applications in are then divided into various categories, including smart contracts and Demand Response (DR), Electric Vehicles (EV), the Internet of Things (IoT), decentralized energy management, energy trading, financial transactions, and cyber security testbeds, as well as environmental concerns The energy auction is run in accordance with transparent rules that are implemented as a smart contract, making it accessible to all parties Threats resulting from known smart meter vulnerabilities are decreased by temporarily limiting vulnerable prosumers’ access to smart meters and updating their devices as soon as security solutions are available.
Henderi Henderi, Qurotul Aini, Irwan Sembiring, Po Abas Sunarya · 6 authors
A variety of information with high research value is produced as an educational asset as a result of the use of various emerging technologies in education. Traditional methods of handling educational resources have emerged. Considering the shortcomings of conventional system centralization methods, people are starting to use decentralized blockchain technology for innovation. The research objective of blockchain 3.0 technology is to support the architecture of the educational digital asset management system also suggested in this article, which also uses bitcoin. Apart from performing essential blockchain validation and storage, it transforms the disparate data that students generate across their classroom and extracurricular learning activities into educational digital assets. To study the growth of school users and achieve educational goals of educating students according to their individual talents and peculiarities, the system can use a variety of heterogeneous data from digital assets.
Gege Ardiyansyah, Ferdiansyah Ferdiansyah, Usman Ependi
Cryptocurrency is a digital asset designed by cryptography, such as Secure Hash Algorithm 2 (SHA-2) and Message Digest 5 (MD5). Cryptocurrency uses Blockchain technology to ensure security, transparency, ease of locating, and unchangeability. This makes cryptocurrency very popular in many sectors, especially in the financial industry. Although, the uncertainty and the dynamic change of cryptocurrency price make the risk for investment in this digital asset high. This is the reason why studies about cryptocurrency price prediction became popular globally. This study intended to predict cryptocurrency prices using hybrid GRU LSTM than setting up the epoch to get the most accurate prediction model. The researcher would make a web-based application that can be used by the public, especially those involved in cryptocurrency investment. The result was a web-based application that could predict the price of cryptocurrency for the next few days, which had been validated using data from the previous 7 days, 14 days, 30 days, 60 days, and 90 days.
To protect personal patient information and comply with regulations, data security is a necessary aspect of the healthcare business. Because patient data is written on paper and stored in filing cabinets, it is simple to protect and secure it. However, all data is now saved digitally, such as patient records, which are now stored on computers, servers, and storage devices. Poor wireless network security, data breaches, legacy system use, malware, viruses, and other hostile attacks are all risk considerations in health care. When compared to other businesses, one of the key reasons to safeguard health care data is that healthcare companies gather and provide comprehensive patient records, including the date of birth, address, and social security number. This paper aims to discuss the issues and solutions to achieving digital healthcare using blockchain technology.
P. Varalakshmi, B Sivasankari, R. Ashok Kumar, K M Nithish Kumar · 5 authors
Blockchain technology is a decentralized storage technology that allows for secure record sharing via cryptographic algorithms and provides transaction immutability in the distributed network. The distinctive aspect of a blockchain is that it maintains the accuracy and security of each record in the block, generating confidentiality without the requirement for an intermediator. Blockchain innovation has its applications in different fields like monetary trades, government areas, medical care, educational training and casting a ballot. The medical field has become a hotbed of fraud in today's world, particularly in the area of health insurance claims, where most people falsely claim their identities in order to acquire health care services and charge more expensive services. Falsifying a patient's diagnosis in order to justify tests, surgeries, and other procedures. And these fraudulent acts can be solved by using DApps due to the immutable structure of the blockchain, the reality that it is a digitally distributed decentralised storage system (Decentralized Application). Blockchain technology also supports the development of open communication between users and health insurance providers because of its decentralised architecture. This paper works on health insurance network information sharing as the foundation and Ethereum blockchain as the structure, and delves the work process into useful system of the health insurance information sharing framework. Subsequently the blockchain innovation is utilized to guarantee the security of health insurance information, and keeps up with the interoperability of clinical records.
S Prathipa, K Harish, N Thashanmouli, Podili Bharath Babu
Lately, fake items have taken on an undeniably significant role in the businesses that make different items. This affects the standing of the organization, as well as their deals and benefits. The execution of blockchain innovation takes into consideration the recognizable proof of certified items as well as the recognition of fake products. The blockchain is a sort of dispersed, decentralized, and computerized record that keeps value-based data as blocks in various data sets that are associated with the chains. Blockchain innovation is otherwise called Distributed Ledger Technology (DLT). Because of the way that blockchain innovation is a protected innovation, any block can neither be modified nor be hacked. Clients never again need to depend on the affirmation of item security given by outsider because of the use of Blockchain innovation. Quick Response (QR) codes are an incredible asset that can be used in this undertaking to battle the broad issue of item fraud. These codes exploit ongoing advancements in portable and remote advancements. The utilization of a Quick Response code scanner, in which the Quick Response code of the product is connected to a Blockchain, is the technique by which counterfeit merchandise are recognized and dispensed with. Therefore, this method has the potential to be utilised in order to keep product particulars and the created unique code of that product in the database in the form of blocks. It does a comparison of the code with the entries in the Blockchain database after it has obtained the user's unique code and stored it. The consumer will receive a notification indicating the product is authentic if the code is a match; otherwise, the customer will receive a notification that the product is counterfeit
Blockchain technology is one of the innovations in financial technology that serves as the backbone of Bitcoin and Cryptocurrency. A blockchain is a secure ledger of all data transfer activities that eliminate the need for third-party involvement. It is a technology that records transactions using distributed databases and cryptography. There are three types of blockchain which are public, private, and Consortium or Federated blockchain. Many industries have used blockchain technology. Blockchain in banking is one of the industries that use blockchain the most and need by the country and organization. Many use cases on blockchain in banking, such as Know Your Customer (KYC), clearing and settlement, trade finance, payments, smart contract, and syndicated loans. These use cases could see the impact of implementing blockchain in banking.
The primary task of integrated product supply chain management is distribution. The processing, storage, and distribution of high-quality pharmaceutical products makes the drug distribution process crucial in the pharmaceutical sector. The distribution of fake medications by associated parties, such as unauthorized or unregistered distributors or data collecting for unregistered medications distributed by distributors, is a concern in the pharmaceutical industry. Drug production permits that are misused up until they are distributed or circulated do not adhere to the Food and Drug Supervisory Agencies standard requirements. In order to facilitate the distribution process by recording data distribution, providing data security, and giving traceability of transactions between linked parties, these issues must be rapidly resolved with technology help. By utilizing blockchain technology, this study suggests a beneficial medicine delivery approach. A user-centered design and a qualitative methodology are used in the model creation. This study's output is a blockchain-based drug delivery mechanism that has been verified. Transparency, security, traceability, decentralization, automation, immutability, and reliability are all features of the model. By ensuring that the pharmaceuticals supplied are of high quality, this strategy can assist the government in promoting community safety, health, and trust in the drugs that are in use.
Ajay Supriadi, Muhammad Faiz Iqbal, Alva Nandana Pratista
Every area of life has been touched by technology, and the education industry is no different. Recently, there have been seismic shifts. Teachers and students used a blackboard technique in the traditional classroom teaching-learning process. But this process' characteristics have changed during the last few years. Technology has snuck in and significantly improved it. On the one hand, whereas in conventional classrooms the players were the teachers, the students, and the books, in the modern classroom the players are the teachers, the students, robots, the e-books, the laptops, and the books. With the help of e-lectures and tutorials, the teaching-learning process can now transcend geographical borders in classrooms. For the process, a vast amount of information is easily available. Additionally, the current situation shows a change from "Teacher-centered" to "Student Centric". However, the focus of this article is on utilizing the applications of Blockchain and IoT in the sector and identifying the areas where they prove to be advantageous. Several technologies have been major actors in modernizing the education industry. To comprehend and determine how these technologies offer a solution to significant educational difficulties, a thorough literature review must be conducted. The teaching and learning process needs to be understood in light of a variety of factors, including changes to the participants, the process itself, the results that are produced, and others. It is also necessary to identify the related difficulties. A thorough examination of these enables us to draw the conclusion that they can revolutionize education for the better in the future. Blockchain, in particular, is still relatively new, but because of the advantages it offers, further study and adoption will undoubtedly alter the teaching-learning process.
M V Manoj Kumar, B Annappa, Likewin Thomas, Sourav Kanti Addya · 5 authors
Blockchain has evolved in many ways and adopted by various communities both technical and commercial. It has many applications out of which smart contracts are one of the powerful applications. Smart contracts are terms of agreements between concerned parties encoded in computer code and stored on a blockchain. Smart contract execution happens automatically if the conditions of the agreements are satisfied. It eliminates the need of third parties and automates the process thereby enabling stakeholders to transact with each other. The features of blockchain like immutability, decentralization and security are used in these contracts to make themselves smart. HBasechainDB is a tamper-proof Big Data store which is a scalable blockchain framework. It provides decentralization and unchangeability to HBase database store that uses pipelining to gain performance just like BigchainDB. As it is built on Hadoop ecosystem it gets the big data processing property. HBasechainDB has been a work in progress at the HPCD Lab, DMACS-SSSIHL, the current version has demonstrated good performance with high scalability but has no smart contract feature to make it a robust, flexible and versatile platform. We propose an enhanced version of HBasechainDB that provides the functionalities of deploying Smart Contract. The re-architected version of HBasechainDB also shows better performance than the previous version. It has 3x better performance than that of Ethereum and 0.4x of Hyperledger Fabric. BigchainDB is another blockchain network that is designed for high throughput transaction processing. It is shown that HBasechainDB per forms better than BigchainDB in terms of throughput in processing of transactions.
Bitcoin is one of the most valuable crypto currencies among other crypto currencies. However, the legality of Bitcoin itself has not been recognized by Indonesia and many other countries as a legal tender, but it is allowed to be used as an investment asset. In the midst of the price of Bitcoin and its very high popularity, a sudden decline occurred after the discovery of a new variant of the Covid-19 virus. This study aims to find out about the cause of the fall in the value of Bitcoin after the establishment of the new Omicron Covid-19 variant as a variant that all countries in the world must be wary of. This research is a Library Research type with data sources in the form of news published by CNBC Indonesia on December 5, 2021, using the content analysis method. The conclusion of this study is that the fall in the price of Bitcoin was caused by the fear of shareholders and other high-risk assets due to news about the possibility of a lockdown in various countries, so these investors released their risky assets, including Bitcoin as a new asset which is still experiencing very high volatility so it is considered risky.
Blockchain is a shared decentralized database. Distributed among a network of nodes, the term distributed ledger technology (DLT) is also used to describe a system in which transactions are recorded from multiple places at the same time (on different nodes in the network) without a central data store. Blockchain is an advanced product that stores data securely and reliably on the network, and several researchers in the field of blockchain, have expanded the capabilities and capabilities of the Bitcoin blockchain technology with the spread of the Ethereum blockchain platform, which added the capabilities of smart contracts to Bitcoin, smart contracts are Self-executing agreements are tokenized within the blockchain in the same way that users exchange bitcoins. Contracts are "smart" because they can carry out obligations without the intervention of a third party. In this research, we address the governance of the blockchain by defining the term governance, its use and types.
Voting is one of the most fundamental components of a democratic society. In 2021 Iraq held the Council of Representatives (CoR) elections in 83 electoral constituencies in 19 governorates. Nonetheless, several significant issues arose during this election, including the problem of logistics distribution, the excessively long period of ballot counting, voters can't know if their votes were counted or if their ballots were tampered with, and the inconsistent regulation of vote counting. Blockchain technology, which was just invented, may offer a solution to these problems. This paper introduces an electronic voting system for the Iraq Council of Representatives elections that is based on a prototype of the permission hyperledger fabric blockchain. An immutable, distributed ledger maintained by all members of a network is what blockchain technology is all about. By authenticating each voter, the system can prevent voting fraud by making votes traceable and verifiable, hence decreasing the chance of unlawful activities and fraudulent ballots. This work investigates the influence of E-voting, specifically the voting phase workload, on the performance of the hyperledger fabric blockchain platform in terms of latency and throughput by altering transaction send rates (tps), block size, and block timeout.
This research paper puts emphasis on using cloud computing with Blockchain (BC) to improve the security and privacy in a cloud. The security of data is not guaranteed as there is always a risk of leakage of users’ data. Blockchain can be used in a multi-tenant cloud environment (MTCE) to improve the security of data, as it is a decentralized approach. Data is saved in unaltered form. Also, Blockchain is not owned by a single organization. The encryption process can be done using a Homomorphic encryption (HE) algorithm along with hashing technique, hereby allowing computations on encrypted data without the need for decryption. This research paper is composed of four objectives: Analysis of cloud security using Blockchain technology; Exceptional scenario of Blockchain architecture in an enterprise-level MTCE; Implementation of cipher-text policy attribute-based encryption (CP-ABE) algorithm; Implementation of Merkle tree using Ethereum (MTuE) in a Multi-tenant system. Out of these four objectives, the main focus is on the implementation of CP-ABE algorithm. CP-ABE parameters are proposed for different levels of tenants. The levels include inner tenant, outer tenant, Inner-Outer-Tenant, Inner-Outer-External-Tenant, Outer-Inner-Tenant, External-Outer-Inner-Tenant and the parameters such as token, private key, public key, access tree, message, attribute set, node-level, cipher-text, salting which will help in providing better security using CP-ABE algorithm in a multi-tenant environment (MTE) where tenants can be provided with different levels of security and achieved 92 percentage of authenticity and access-control of the data.
Education is undergoing a continuous digital change. The administrative departments must be able to handle grading, admissions, enrollments, and certificate recognition efficiently and securely. Course administrators should have confidence in both e-learning and e-assessment. Lastly, students should be able to access course materials from anywhere and take tests outside their institutions. With the advancement of education governing systems and governance abilities, technology has broader applicability in the education sector, as it is the ideal technology for securing data. This article aims to determine the state of blockchain applications in education, their benefits, and concerns, as well as to show that the blockchain is becoming a vital technology in future education. In conjunction with digital signatures for identification and verification, blockchain may be the best approach to digital transformation in education. This article cites papers evaluating and detailing the applications and challenges of blockchain technology in the higher education sector. An extensive literature review was conducted, and 63 papers that contributed significantly to the discussion of blockchain's potential in education were chosen for the review. The analysis of these papers provided important information and answered the research questions about how blockchains are currently being used in education, which features can help this field, and what problems need to be solved. Analysis shows that blockchain could become important in the field of education. However, some important technological, regulatory, and academic issues must be resolved before adoption.
In the development of the Industrial revolution 4.0 to improve and modify the world's industry by integrating production lines, and extraordinary results in the field of technology and information marked its emergence. It can be used to enhance document security systems using Blockchain technology. Blockchain Innovation Authentication has attracted great attention in the world of science and capital markets. The persistent problems of the many available digital currencies and the various tricks of early coin offerings also welcome the well-known discussion of emerging innovations in the field of education. The importance of this paper follows the improvement of the blockchain framework to reveal the importance of decentralized applications (dApps) and blockchain on the future value in education. This study uses a descriptive method, which is a research method used to describe problems that occur in the present or ongoing, aiming to describe what happened as it should when the research was conducted. the novelty of cutting-edge dApps and talk about the title of blockchain progress to meet the positive attributes of future dApps. Readers will come to the conclusion of dApp research and know the continuous improvement in blockchain .
One of the investments that people are interested in today is Cryptocurrency. This is a form of investment that occurs due to advances in the world of technology that are felt by the community without exception also for Muslims. Conventional investment is defined as having broad benefits and impacts on the country's economy. However, Islam provides various limits in investing. For an investment to be recognized in Islam, four aspects must be owned, namely: material/financial aspects, halal aspects, social and environmental aspects, and divine aspects. For this reason, this research will describe in detail, whether cryptocurrencies meet these aspects or not. In answering these problems, the researcher used a descriptive qualitative approach with valid secondary data sources. This research results that none of the four aspects can be fulfilled from cryptocurrency, both material/financial aspects, halal aspects, social and environmental aspects as well as divine aspects. Keywords: Cryptocurrency; investment; Islamic economy