Teknologi blockchain banyak diterapkan dalam dunia Pendidikan, memiliki keunggulan dengan sistem yang terdesentralisasi dan kriptografi yang kuat dapat membantu universitas dalam membangun infrastruktur dalam penyimpanan arsip berupa transkrip nilai, sertifikasi dan ijazah. Penerapan teknologi blockchain dalam dunia pendidikan antara lain adalah blockcert, e-Portfolio,danbook copyright. Blockcert adalah salah satu tool yang diciptakan MIT yang dapat digunakan untuk membuat, menerbitkan, dan memverifikasi sertifikat yang berbasis blockchain1. Berdasarkan ide yang diusung dari blockcert untuk membuat sertifikat yang dapat diverifikasi secara global dan tersimpan secara terdesentralisasi. Penulis mencoba mendesain e-transkrip yang berbasis blockchain yang dapat dimanfaatkan untuk mendukung transparansi dan akuntablititas universitas dalam menerbitkan transkrip nilai dan ijazah.
Internet of Things (IoT) and blockchain are two technologies which are pioneer nowadays and in the future. IoT become pioneer because our goverment sets Industrial Revolution 4.0 which signifies the IoT technology. For blockchain, it is a technology which has a significant development. These two technologies have a good future. The innovation in this design is combining these two technologies. IoT has a problem in securitization, but blockchain has an advantage in security. So, by combining these technologies, the problem could be resolved. This design used microcontroller ESP32. It will collect three data sets, i.e. altitude, pressure and temperature. The data will be sent through Internet to Ethereum blockchain network in Ropsten TestNet. The Data will store in state variables. Twenty data have been sent and tested. The data has been verified to be stored in Ethereum Virtual Machine because the data could be verified through etherscan.io. So, the conclusion is this design could prove that blockchain could be used to data securitization in IoT. Internet of Things (IoT) dan blockchain merupakan dua teknologi yang akan menjadi pioneer saat ini dan di masa mendatang. Pioneer saat ini karena pemerintah menetapkan Revolusi Industri 4.0 yang salah satu titik beratnya adalah IoT. Untuk blockchain, saat ini merupakan teknologi yang mengalami perkembangan signifikan. Kedua teknologi ini menjanjikan. Salah satu hal yang dapat menjadi inovasi adalah menggabungkan keduanya. IoT memiliki permasalahan pada sekuriti, sedangkan blockchain memiliki keunggulan dalam hal sekuriti. Dengan demikian, menggunakan teknologi blockchain untuk aplikasi IoT akan menjadi solusi. Alat yang dirancang menggunakan mikrokontroler ESP32. Alat ini akan mengakuisis data dari tiga buah sensor, yaitu sensor ketinggian, tekanan dan suhu. Data-data ini dikirim melalui Internet ke jaringan blockchain Ethereum di TestNet Ropsten. Data tersebut akan disimpan di state variables. Dua puluh data dikirim dan berhasil disimpan di Ethereum Virtual Machine. Ini terbukti dengan setiap data yang dikirim dapat divalidasi dan terekam di etherscan.io. Dengan demikian, perancangan alat ini berhasil membuktikan bahwa IoT dapat menggunakan blockchain untuk sekuritisasi data.
Cristina Elena Turcu, Cornel Turcu, Iuliana Chiuchisan
The proposed paper presents a literature review regarding the status of integrating the dynamic blockchain technology in the educational field. Blockchain is a relatively new technology and the same is its implementation in education. The emerging need in this area of research, which still is in its infancy, is justified by the possible use cases; some of these cases are in piloting phase, while others have already been adopted by educational institutions. This paper focuses on extending knowledge about blockchain and on identifying the benefits, risks and the associated challenges regarding the successful implementation of blockchain-based solutions in the field of education, fully in line with standards and guidelines for quality assurance.
Cryptocurrency di indonesia sudah mulai berkembang serta mulai banyak digunakan oleh pelaku bisnis di indonesia. Hal inimenjadifenomenadalammemandangperlutidaknyaperlakuan akuntansi untuk transaksi cryptocurency. Penelitian ini mencoba menggali dan menguji crypto currency dan teknologi block chain dengan pendekatan dan tinjauan PSAK di Indonesia danfokus pada perlakuanakuntansi untuk cryptocurrency di Indonesia. Tujuan penelitian ini adalah melakukan kajian tentang akuntansi untuk crytocurrencyberdasarkan PSAK yang berlaku di indonesia. Penelitian ini menggunakan model literatur review untuk mengetahui akuntansi untuk cryptocurrency. Hasil penelitian menunjukkan belum adanya perlakuan akuntansi untuk transaksi cryptocurrency apakah diperlakukan sebagai kas, aset, atau persediaan.
 Cryptocurrency in Indonesia has begun to develop and is starting to be widely used by business people in Indonesia. This is a phenomenon in view of the need for accounting treatment for cryptocurency transactions. This research attempts to explore and test cryptocurrency and blockchain technology with the approach and review of PSAK in Indonesia and focus on the accounting treatment for cryptocurrency in Indonesia. The purpose of this study is to conduct a study of accounting for crytocurrency based on the applicable PSAK in Indonesia. This study uses a review literature model to find out accounting for cryptocurrency. The results of the study indicate that there is no accounting treatment for cryptocurrency transactions whether treated as cash, assets, or inventory.
Li Zhongzhen, Gao Chaoyue, Min Liu, Chengqin Dai · 5 authors
Student status management is a key part in university information construction and an important basis for talents certification. The emergence of blockchain technology provides a new way to improve the student status management system. Blockchain is a distributed ledger technology in nature, with its decentralized and nontamperable features, the security and authenticity of student information can be ensured. Based on the application of blockchain technology such as smart contracts in "Smart Campuses", this paper proposes and designs a decentralized student status management systim. With Fabric framework, we developed a prototype of student status management system its demonstraiton.
We propose that blockchain technology complemented by secure computation methods can foster implementation of a learning healthcare system (LHCS) by minimizing upfront patient-facing compromises with unsurpassed data security and privacy, and by optimizing the system’s fulfillment of its obligations to respect patients through transparency, engagement, and accountability. We demonstrate how a blockchain-enabled LHCS could foster patient willingness to contribute to learning by providing desired security and control over health data. In addition, secure computation methods could enable meta-analysis without exposing individual-level data, thus allowing the system to protect patients’ privacy while simultaneously learning from their data. The transparency and immutability of blockchain ledgers would also support the public’s trust in the system by allowing patients to audit and oversee which of their data are used, how they are used, and by whom. Furthermore, blockchain communities are community-governed peer-to-peer networks in which sharing builds mutually beneficial value, offering a model for engaging patients as LHCS stakeholders. Smart contracts could be used to ensure accountability of the system by embedding feedback mechanisms by which patients directly and automatically realize benefits of sharing their data.
Blockchain has received increased attention from both the academic and practitioner worlds. Numerous papers have been written on how blockchain works and its potential applications. However, few studies have focused on fraudulent activities on blockchain. The purpose of this study is to understand common issues and scams related to blockchain. A literature review was conducted to identify top security issues on blockchain. In addition, we collected tweets on blockchain fraud discussion from November 6, 2018 to December 31, 2008. The results of tweets analysis show that the most frequently mentioned words in tweets include scams, crypto/cryptocurrency, ICO, Bitcoin, Ethereum, combat/fight, Asia, Japan, and Germany. The top mentioned sentiment words include scam, combat, guilty, prevent, solution, tired, and fake. In addition, a sentiment analysis shows that the majority of the tweets (69%) on the discussion on blockchain fraud are negative. The findings also shows the majority of top influencers of the topic are the companies that have developed blockchain-based platforms/applications.
With the appearance of Bitcoin, the blockchain technology behind it has attracted attention from banks, companies, and entrepreneurs from different fields. Many new blockchain technology related projects and companies are started in financial service and others , such as data storage, supply chain, internet of things (IoT) and copyright protection as the valuable features including decentralization, transparency, security, and immutability. The work of blockchain technology can be used to reduce the costs associated with making decision and improve the efficiency of implementation by means of decentralized autonomous organizations (DAOs) which are the products of decentralization management. This paper is to analyze the pros and cons of decentralization management based on blockchain technology with an empirical study of blockchain projects and companies in different industries for a better understanding of decentralization management, and find better ways of decentralization management in blockchain projects and managing decentralized autonomous organizations.
Abstract The use of blockchain technology has increased tremendously over the last decade. Blockchain continues to evolve and new features and capabilities are developed continuously. Although the use of the technology started in cryptocurrency (specifically, Bitcoin), it has expanded to other areas that can benefit from a shared, secure, ledger. This article investigates the potential impact of blockchain technology on the accounting profession. This article analyzes data security and privacy considerations, technology, adoption, and implementation considerations, and some considerations that relate specifically to accounting and auditing. We find that the unique needs of an accounting information system may not be a good match for blockchain as it currently exists. While we explain that blockchain may deliver many benefits, particularly in the areas of data reliability and the financial statement audit, we identify several factors, which raise significant questions about whether blockchain will ever be significantly integrated in the accounting function. Chief among those concerns is the scalability of the technology at an acceptable cost. While significant investment has and will be made for further development of blockchain business applications, it is our assessment that proponents of blockchain integration in accounting have not yet made the economic case for it. We also have significant concerns about whether blockchain technology can adequately address risks associated with data security and privacy. Addressing all these issues will be a minimum requirement for gaining widespread acceptance by firms and their accountants.
Historically, the means of payment has evolved from time to time. The current phenomenon is Bitcoin, claimed by its users as a means of future payments, that have been the major attention of many people, from people in business to students. The research question in this study was how the existence of Bitcoin as a medium of exchange is, and how its existence as a medium of exchange is viewed based on the maqāṣid al-syar 'īyah. This used the literature research method and the maqāṣidī approach by applying the tarjih maslahat method. The existence of Bitcoin as a medium of exchange is considered valid because of the 'urf recognition. However, it requires a legal status from the government because it is related to al-maslahat al-mmāmmah, the mafsadat (damage) value of Bitcoin is higher than its maslahat (benefit) value. Hence, it is concluded that Bitcoin is valid as a medium of exchange. Still, its use must be limited due to the mafsadat (harm) probability that is more dominant at the ḍarūriyyāt (primary needs) level, following the principle of "rejecting the harm is prioritized than realizing the benefit."
 Abstrak: Berdasarkan sejarah, alat pembayaran dari masa ke masa telah mengalami evolusi, pada saat ini terdapat sebuah fenomena yaitu fenomena Bitcoin yang diklaim oleh para penggunanya sebagai alat pembayaran masa depan yang telah banyak menyita perhatian orang mulai dari kalangan pengusaha hingga mahasiswa. Bitcoin memiliki beberapa kelebihan jika dibandingkan dengan alat pembayaran yang biasa digunakan, di antaranya yaitu sifatnya yang desentralisasi sehingga tidak ada pengendali pusat yang akan ikut campur di dalamnya. Sedangkan pada kebiasaannya, alat pembayaran di suatu wilayah berada di bawah pengawasan pemerintah karena alat pembayaran tergolong kepada kebutuhan primer yang menyangkut kesejahteraan umum. Pertanyaan penelitian dalam skripsi ini adalah bagaimana eksistensi Bitcoin sebagai alat tukar dan bagaimana keberadaan Bitcoin sebagai alat tukar berdasarkan maqāṣid al-syar‘īyah. Dalam penelitian ini penulis menggunakan metode penelitian kepustakaan dan pendekatan maqāṣidī dengan menerapkan metode tarjih maslahat. Keberadaan Bitoin sebagai alat tukar dianggap sah karena terdapat pengakuan secara ‘urf. Akan tetapi status sah tersebut perlu mendapatkan pengesahan pemerintah karena terkait dengan al- maslahat al-‘āmmah, nilai mafsadat pada Bitcoin lebih dominan jika dibandingkan dengan nilai maslahatnya. Dari paparan di atas disimpulkan bahwa keberadaan Bitcoin sah sebagai alat tukar, namun penggunaannya merupakan sesuatu yang harus dibatasi karena probabilitas mafsadatnya lebih dominan yang berada pada tingkat ḍarūriyyāt.. Hal ini sesuai dengan kaidah “menolak mafsadat di dahulukan dari pada mewujudkan maslahat.”
 Keyword: Eksistensi, Bitcoin, Maqāṣid al-Syar‘īyah.
Table of Contents Hello world in blockchain Building a Bitcoin Payment System Building Your Own Cryptocurrency Peer-to-Peer Auctions in Ethereum Tontine Game with Truffle and Drizzle Blockchain-Based Futures System Blockchains in Business Creating an ICO Distributed Storage IPFS and Swarm Supply Chain on Hyperledger Letter of Credit Hyperledger
Blockchain menawarkan berbagai dobrakan di bidang teknologi, mulai dari bidang keuangan hingga kesehatan. Beberapa usulan juga menerapkan blockchain pada teknologi IoT untuk meningkatkan unjuk kerja dan scalability. Namun, tipikal penerapan teknologi IoT dalam skala masif masih memiliki beberapa kendala, terlebih dalam hal manajemen akses dan identitas peranti yang terkoneksi. Makalah ini mengusulkan kombinasi dari permissioned blockchain dan teknologi Keyless Signature Infrastructure (KSI) sebagai metode untuk mengatur hak akses dan identitas peranti IoT. KSI dikenal mampu untuk memberikan layanan tanda tangan digital tanpa tergantung pada kunci privat maupun publik dengan menggunakan teknik pohon hash. Dengan karakteristik dari blockchain yang terdistribusi, teknologi KSI dapat dipadukan secara lebih efisien. Hasil yang diperoleh memberikan manajemen akses dan identitas dengan scalability yang tinggi.
Blockchain is a game changer in nowadays information technology and financial industry. Since Nakamoto invented the concept of blockchain together with its first application called “Bitcoin”, the topic of blockchain has been inundated with the booming of cryptocurrencies. People expect this novel distributed ledger technology to bring a revolution to the entire industry and thereby grab the opportunity to expand and strengthen their business. The supply chain is treated as a typical use case to adopt blockchain and relevant technologies in many previous studies. In this paper, we conduct an interdisciplinary study on business supply chain management and the latest distributed ledger technology. In accordance with our discussion and experiments, we list three major benefits that the adoption of blockchain is able to bring to contemporary supply chain management. Meanwhile, we also identify a few of challenges that the nowadays blockchain application could not effectively excel, and the potential mitigation to those challenges as well.
Nur Sakinah Burhanuddin, Fadhlan Hafizhelmi Kamaru Zaman, Ahmad Ihsan Mohd Yassin, Nooritawati Md Tahir
Two of the most familiar method of voting is through voting polls and online voting. The main problem with conventional method is the insecurity of the votes to be untemper. Another problem of voting methods is the existence of fraud in voting system. This paper is to propose a method in overcoming these flaws and problems by using the Blockchain technology. Blockchain technology is a secured database and has very high security. The technical concept of the Blockchain technology has many advantages and benefits that could be applied to many technical sectors and have the possibility in changing the world. The concept for this project is to develop a cryptocurrency implementation in the voting system. From there, the transaction votes are kept in the blockchain could be illustrated by examining the block hashes. The outcome of the project shows a transaction of coins from one voter’s wallet into two candidates’ wallet. The transactions were approved through a process of mining and the transactions of coins were a success. The data of the transactions were kept in the blockchain where unique blockhash, which acted as the block’s fingerprint were generated. From there, the integrity of the blockchain technology is illustrated.
Nor Ashikin Mohamad Kamal, Mohd Hanif Md Saad, C. S. Kok, Amir Hussain
Internet of Things (IoT) has been implemented in most advance technologies as part of the emerging 4th industrial revolution, and recently, blockchain technology is being welcomed. These rapid growing technologies giving a big challenge to the students. As such, learning these new technologies should be made easy and simple. However, current education does not specifically offer a curriculum to empower skills and knowledge in IoT and blockchain technology. The aim of this research is to develop learning kit that can provide suitable training to understand concept of IoT and blockchain technology. The kit consists of three parts namely “brain”, “muscle” and “cloud”. Raspberry Pi is used as “brain” of operation that will be interact with the Caiser Cloud platform. A testbox operates as “muscle” to provide simple data input. The input from testbox will be sent, stored and displayed on a platform created using Xojo software. The results show that the learning kit is successfully interact with Caiser Cloud platform and can be used as a training tools for education purpose.
A blockchain is a decentralized, distributed peer-to-peer network that allows one node to communicate with other nodes. When using blockchain technology in education, data or records can be stored permanently without fear of hacking du e to the secure hashing algorithms in blockchain techn
Patrick G. Sylim, Fang Liu, Alvin Marcelo, Paul Fontelo
BACKGROUND: Drug counterfeiting is a global problem with significant risks to consumers and the general public. In the Philippines, 30% of inspected drug stores in 2003 were found with substandard/spurious/falsely-labeled/falsified/counterfeit drugs. The economic burden on the population drug expenditures and on governments is high. The Philippine Food and Drug Administration (FDA) encourages the public to check the certificates of product registration and report any instances of counterfeiting. The National Police of Philippines responds to such reports through a special task force. However, no literature on its impact on the distribution of such drugs were found. Blockchain technology is a cryptographic ledger that is allegedly immutable through repeated sequential hashing and fault-tolerant through a consensus algorithm. This project will develop and test a pharmacosurveillance blockchain system that will support information sharing along the official drug distribution network. OBJECTIVE: This study aims to develop a pharmacosurveillance blockchain system and test its functions in a simulated network. METHODS: We are developing a Distributed Application (DApp) that will run on smart contracts, employing Swarm as the Distributed File System (DFS). Two instances will be developed: one for Ethereum and another for Hyperledger Fabric. The proof-of-work (PoW) consensus algorithm of Ethereum will be modified into a delegated proof-of-stake (DPoS) or practical Byzantine fault tolerance (PBFT) consensus algorithm as it is scalable and fits the drug supply chain environment. The system will adopt the GS1 pedigree standard and will satisfy the data points in the data standardization guidelines from the US FDA. Simulations will use the following 5 nodes: for FDA, manufacturer, wholesaler, retailer, and the consumer portal. RESULTS: Development is underway. The design of the system will place FDA in a supervisory data verification role, with each pedigree type-specific data source serving a primary data verification role. The supply chain process will be initiated by the manufacturer, with recursive verification for every transaction. It will allow consumers to scan a code printed on the receipt of their purchases to review the drug distribution history. CONCLUSIONS: Development and testing will be conducted in a simulated network, and thus, results may differ from actual practice. The project being proposed is disruptive; once tested, the team intends to engage the Philippine FDA to discuss implementation plans and formulate policies to facilitate adoption and sustainability. REGISTERED REPORT IDENTIFIER: RR1-10.2196/10163.
This paper discusses the mining-trading of cryptocurrency in Islamic law as a digital asset that has recently been traded in cyberspace. The value of cryptocurrency is soaring and fluctuation and it is influenced by the demand of buying and selling. Indodax.com is the official digital asset site in Indonesia that trades more than 13 digital currencies. As we know, digital currencies are not electronic money, even though the characteristic is similar. Starting from this, I analyze whether cryptocurrency is worthy of being value as money that has a certain value. Until now, the Indonesian government through Bank Indonesia has published regulation Number 16/8/PBI/ 2014, which explicitly prohibits using bitcoin and altcoin on financial transactions. Otherwise, MUI (Indonesian Ulema Council) has not issued a fatwa yet related to cryptocurrency. From here, I focuse on this study to the law of cryptocurrency in Islamic law. Bitcoin has advantages and disadvantages. Among its advantages are the user can use exchange or transaction without third service (bank), and it can be traded in merchandise shops. But, the disadvantages of bitcoin are mach more, such as fluctuating value every times, it is not listed as a commodity, it is not watched by Financial Services Authority (OJK), it presents the element of gharar (uncertainty) and maysir (gambling or bet), which makes it possible to be used for money laundering and drugs. On the other hand, until now, the Indonesian people have not considered that bitcoin as a treasure like gold or silver
The use of technology has become important at this point in helping to meet human needs.Due to the increasing use of technology, new challenges are brought in the process of democracy as most people today don’t trust their governments, making elections is very important in modern democracy . Elections have a great importance in determining who will rule a nation or an organization or it can be said as it is an event that decides the fate of any nation. In modern democracy, elections are very important but large sections of society around the world do not trust their election system which is a major concern for democracy. Even the world’s largest democracies like India, United States, still suffer from a flawed electoral system. Vote rigging, hacking of EVM (Electronic voting machine), election manipulation, and polling booth capturing are the major issues in the current voting system The blockchain is said as emerging, decentralized, and distributed technology that promises to enhance different aspects of many industries. Expanding e-voting into blockchain technology could be the solution to eliminate the present concerns in e-voting system There is no doubt that the ever changing concept of the blockchain, which is the backbone of the famous cryptocurrency Bitcoin has triggered the start of a new era in the Internet and the online services. While most people focus only on bitcoin and other cryptocurrencies; there are in fact, many operations, both administrative and fintech that can only be done online/offline can now safely be moved to the Internet as online services because of immutability of blockchain. What makes blockchain a powerful tool is its smarts contracts and many features which overcomes traditional systems. Smart contracts are meaningful pieces of codes, to be integrated in the blockchain and executed as scheduled in every step of blockchain updates. E-votin, is another trending, yet critical, topic related to the online services. The blockchain with the smart contracts, emerges as a good candidate to use in developments of safer, cheaper, more secure, more transparent, and easier-to-use e-voting systems.Due to its consistency, widespread use, and provision of smart contracts logic, Ethereum and its network is one of the most suitable ones. An e-voting system must be secure, as it should not allow duplicated votes and be fully transparent, while protecting the privacy of the attendees. In this project, we have implemented and tested an e-voting application as a smart contract for the Ethereum network using the Ethereum and the Solidity language.
Kelompok Keahlian Ilmu Kemanusiaan, Fakultas Seni Rupa dan Desain, Institut Teknologi Bandung, Asep Zaenal Ausop, Elsa Silvia Nur Aulia
Cryptocurrency is virtual money or digital money or electronic money in illusion world which has no any concrete thing. This cryptocurrency has many varieties such as Litecoin, Monero, Ether, Ripple, Ethereun, Qtum, Dash, Zcash, and Bitcoin. The safety of Bitcoin is protected by Blockchain technology but it has weaknesses such as no underlying asset, no authority, and responsibility. Moreover, the ownership of this bitcoin is anonymous, and the fluctuation of this Bitcoin values was very extreme and dominated by public opinion about marketing system. Therefore, the usage of this Bitcoin in the term of investation and bussiness transaction causes pro-contra from economical experts and ulama. This research is purposed to get a representation around Bitcoin technology its self and the validation for using Bitcoin in business transaction according to Islamic sharia. The used theory is the taxonomy bussiness of haram lidzatihi and haram lighayrihi from Jumhur Ulama and constructed by Adiwarman Abdul Karim. The method of this research is literature research; its resources are taken from Al Quran, Hadith Rasulullah, classical and contemporary books also online media. This research resulted the great revolusionarytechnology, but the usage of this Bitcoin as the investation of instrument contained maysir (gambling) and the instruments of bussiness transaction contained gharar. The law position is haram lighayrihi.
Blockchain is the core technology used to create the cryptocurrencies, like bitcoin. As part of the fourth industrial revolution since the invention of steam engine, electricity, and information technology, blockchain technology has been applied in many areas such as finance, judiciary, and commerce. The current paper focused on its potential educational applications and explored how blockchain technology can be used to solve some education problems. This article first introduced the features and advantages of blockchain technology following by exploring some of the current blockchain applications for education. Some innovative applications of using blockchain technology were proposed, and the benefits and challenges of using blockchain technology for education were also discussed.
Bitcoin is a digital currency raised by Satosghi Nakamoto, which is Completely decentralized, Highly anonymous, cross-border. Nowadays it has became one of the most widely used currency. Recently, as the used capacity has approached the capacity limitation of each block, the time needed to confirm a transaction increase dramatically. As a result, bitcoin cannot satisfy the need of a large number of bitcoin transactions. This paper aims to apply merged mining technology to bitcoin blockchain scaling, which builds another blockchain called auxiliary blockchain based on bitcoin blockchain and stores some of small rapid transactions in auxiliary blockchain. This paper also proves the merged mining technology can concentrate computing power and design a special miner reward program.
The blockchain technology is seen as revolutionary technology, which obtains attention from various fields in many countries. In China, students information in higher education needs to be managed by the third part-China Credentials Verification. Although this website brings a lot of convenience to students, it still exists some disadvantages. Through analyzing the application of blockchain technology in finance field, the key feature -decentralized can also be effectively applied in the education field to improve the work efficiency of verifying degree, storing considerable data or transmitting students' information in the way of point-to-point and so on. Through exploring the modern of 'blockchain+education', considerable students' info rmation in database can be stored in the blockchain and can be traced by companies to conveniently query their records. This paper will discuss the application landscape of blockchain technology in higher education in new view.