Cryptocurrency adalah teknologi sistem kriptografi yang bertujuan untuk mengamankan dan mengatur otoritas dengan menggunakan sistem desentralisasi untuk mengelola pengeluaran unit baru, mencatat transaksi, dan memberikan jaminan keamanan yang tidak dapat diduplikasi atau ditiru. Oleh karena itu, tidak diragukan lagi bahwa penjahat juga telah menggunakan Bitcoin dalam aktivitas ilegal seperti menerima pembayaran dalam kasus pemerasan online, membayar obat-obatan terlarang, insiden ransomware, mendanai terorisme, transaksi di pasar darknet, dan pencucian uang. Kejahatan yang dilakukan dengan menggunakan dompet crypto sebagai wadah berperan dalam tantangan untuk membuktikan dan menganalisis objek digital yang tersimpan di smartphone. Penelitian ini berfokus pada penemuan artefak digital dari perangkat smartphone berdasarkan fakta atau informasi yang diperoleh dari instruksi smartphone. Untuk menemukan bukti digital dari aplikasi dompet cryptocurrency smartphone menggunakan metode DFRWS dan alat oksigen forensik. Berdasarkan hasil penelitian, diperoleh beberapa aktivitas transaksi dompet cryptocurrency tokocrypto. Informasi yang terdapat pada transaksi deposit fiat, penarikan fiat, penarikan crypto, dan penjualan crypto serta beberapa label tidak terdapat pada beberapa transaksi yaitu jenis transaksi, Order Id, Txid, dan alamat wallet.Cryptocurrency adalah teknologi sistem kriptografi yang bertujuan untuk mengamankan dan mengatur otoritas dengan menggunakan sistem desentralisasi untuk mengelola pengeluaran unit baru, mencatat transaksi, dan memberikan jaminan keamanan yang tidak dapat diduplikasi atau ditiru. Oleh karena itu, tidak diragukan lagi bahwa penjahat juga telah menggunakan Bitcoin dalam aktivitas ilegal seperti menerima pembayaran dalam kasus pemerasan online, membayar obat-obatan terlarang, insiden ransomware, mendanai terorisme, transaksi di pasar darknet, dan pencucian uang. Kejahatan yang dilakukan dengan menggunakan dompet crypto sebagai wadah berperan dalam tantangan untuk membuktikan dan menganalisis objek digital yang tersimpan di smartphone. Penelitian ini berfokus pada penemuan artefak digital dari perangkat smartphone berdasarkan fakta atau informasi yang diperoleh dari instruksi smartphone. Untuk menemukan bukti digital dari aplikasi dompet cryptocurrency smartphone menggunakan metode DFRWS dan alat oksigen forensik. Berdasarkan hasil penelitian, diperoleh beberapa aktivitas transaksi dompet cryptocurrency tokocrypto. Informasi yang terdapat pada transaksi deposit fiat, penarikan fiat, penarikan crypto, dan penjualan crypto serta beberapa label tidak terdapat pada beberapa transaksi yaitu jenis transaksi, Order Id, Txid, dan alamat wallet.
Purwono Purwono, Pramesti Dewi, Safar Kurniawan Dwi
Manipulasi data kesehatan memicu keresahan masyarakat dan menurunkan tingkat kepercayaan terhadap langkah antisipatif yang dilakukan pemerintah Indonesia. Teknologi Blockchain menjadi salah satu solusi untuk mencegah data kesehatan yang berpotensi untuk dimanipulasi. Smart contract adalah protokol yang berjalan di jaringan blockchain. Metode ini mengikat suatu kesepakatan antara beberapa pihak dalam suatu perjanjian. Data kesehatan ini dapat dilindungi dari pihak internal dengan membuat kontrak cerdas antara dokter, pasien, dan pengelola website. Data diagnosis yang dibuat oleh dokter baru adalah valid jika pasien setuju. Administrator hanya dapat mengakses data jika disetujui oleh dokter dan pasien. Pengujian keamanan dilakukan melalui serangan injeksi SQL. Sistem yang belum menerapkan kontrak pintar dapat dikompromikan melalui uji injeksi muatan, sedangkan sistem yang telah menerapkan kontrak pintar hanya dapat memecahkan kueri login. Pengujian manipulasi data 10 kali setelah login berhasil menunjukkan bahwa data yang telah disimpan tidak dapat diubah karena memerlukan kontrak pintar
Transformasi digital menjadi tren global yang telah mengubah cara bisnis dan pemerintahan di seluruh dunia. Di Indonesia, pemerintah dan sektor swasta sedang mempercepat transformasi digital dengan mengadopsi teknologi blockchain sebagai solusi untuk meningkatkan keamanan data dalam operasi sehari-hari. Beberapa proyek blockchain di Indonesia telah dilakukan, seperti verifikasi dan validasi sertifikat pendidikan, penyimpanan data medis, dan sistem pembayaran. Namun, implementasi teknologi blockchain di Indonesia masih menghadapi beberapa tantangan, seperti regulasi yang belum jelas, infrastruktur yang masih terbatas, dan kurangnya pemahaman tentang teknologi blockchain. Oleh karena itu, diperlukan dukungan dari semua pihak untuk mempercepat adopsi teknologi blockchain di Indonesia. Penelitian dan pengembangan lebih lanjut harus dilakukan untuk mengoptimalkan potensi teknologi blockchain dan mempercepat transformasi digital di Indonesia.
Blockchain technology is a major innovation that has swept through global supply chains recently. Blockchain technology has received immense attention in the supply chain industry due to its promising capabilities. This study was conducted to evaluate the potential capabilities of blockchain technology, which are highly relevant to the supply chain industry. To improve the understanding of the effect of blockchain on the supply chain, this research focuses on two crucial aspects of supply chain management, namely, supply chain capabilities and flexibility. The research procures measuring items for blockchain characteristics, supply chain capabilities, and flexibility through a questionnaire, the previous literature, and interviews conducted with industry experts. Through the use of statistical analysis, this study identifies the relationship between the above variables. The effect of blockchain on each variable is examined using a simple linear regression model. The findings disclose that blockchain technology has generated a notable impact on the supply chain capabilities and supply chain flexibility of firms. This makes blockchain technology highly essential for firms to generate a competitive advantage in the market and develop a new set of capabilities ahead of their competitors.
Bitcoin is one of the digital payments that is currently booming, fast delivery makes bitcoin in great demand by many people, currently there are many digital currency exchanges that can be used, one of the well-known ones in Indonesia, namely Indodax. Indodax is a cryptocurrency exchange, not only an exchange, Indodax also provides a chat room containing investors' opinions. Opinions contained in the Indodax chat room can be used to determine whether comments are positive, neutral or negative, so that it can be an investor's decision to sell or buy bitcoin using sentiment analysis. The sentiment analysis process begins with collecting data using an instant data scraper on the Indodax website, data preprcoessing, labeling using vader lexicon, TF-IDF as word weighting, data splitting, naïve Bayes algorithm and support vector machine, feature selection xgboost and gradient boosting, model evaluation with confusion matrix, then comparing the results of the two algorithms. Based on the tests that have been carried out, naïve bayes obtained the best accuracy value of 70.7%, naïve bayes combined with XGBoost obtained the best accuracy value of 86.6%, while the Support vector machine obtained the best accuracy 86.1%, support vector machine combined with gradient boosting obtained the best accuracy value of 88%. Based on these results the use of feature selection can increase the accuracy value of the algorithm.
Dalam Kaidah fiqh ada kaidah hukum dasar segala perbuatan ialah boleh kecuali ada dalil yang mengharamkan. Pada prinsipnya keberadaan bitcoin sebagai mata uang virtual diperbolehkan, karena telah diterima oleh berbagai kalangan masyarakat, tetapi persetujuan, legalitas serta pengakuan pemerintah harus dilihat sebagai hak dan kewajiban pemerintah. Hal ini Termasuk masalah penerbitan mata uang bitcoin, guna menghindari kemungkinan kemadharatan yang mungkin terjadi. Dalam kenyataannya, perdagangan Bitcoin saat ini lebih banyak digunakan sebagai spekulasi sehingga terdapat unsur gharar dan maisir yang terkandung dalamnya akad batil dan unsur yang dilarang oleh prinsip ajaran Islam. Menggunakan Bitcoin sebagai sarana investasi sangat spekulasi dan berisiko. Jika mengacu kepada alasan pengharaman riba maka ada riba dalam transaksi bitcoi yaitu berkaitan dengan pertukaran yang disyaratkan taqaabudh serta tamaatsul.Penggunaan Bitcoin juga terlihat dalam motode penolakan terhadap madharat, dengan ketidakjelasan dan mengandung unsur gharar dan maysir, terutaman legitimasi dari pemerintah yang tidak jelas mengenai penggunaan bitcoin, maka akan menyebabkan dampak negative yang sangat besar misalnya penyalah gunaan dana untuk kejahatan seperti tindak pidana terorisme dan Money Laundering. Oleh karena itu mencegah madharat leih diutamakan daripada mendadatangkan manfaat.Penelitian ini menggunakan pendekatan penelitian kualitatif deskriptif. Jenis penelitian yang digunakan adalah penelitian kepustakaan (Library Research). yakni dengan menelaah artikel, buku dan laman website untuk memperoleh data, teori dan konsep yang berkaitan dengan penelitian ini. In the Rules of fiqh there is a basic legal rule that all actions are permissible unless there is an argument that forbids it. In principle, the existence of bitcoin as a virtual currency is permissible, because it has been accepted by various groups of people, but government approval, legality and recognition must be seen as rights and obligations of the government. This includes the issue of issuing bitcoin currency, in order to avoid possible harm that might occur. In reality, Bitcoin trading is currently mostly used as speculation so that there are elements of gharar and maisir which are contained in vanity contracts and elements prohibited by Islamic principles. Using Bitcoin as an investment vehicle is highly speculative and risky. Referring to the reasons for prohibiting usury, there is usury in bitcoin transactions, namely related to the exchange required by taqaabudh and tamaatsul. The use of Bitcoin is also seen in the method of rejecting madharat, with ambiguity and containing elements of gharar and maysir, especially legitimacy from the government which is not clear regarding the use bitcoin, it will cause enormous negative impacts, for example the misuse of funds for crimes such as terrorism and money laundering. Therefore preventing harm is prioritized over bringing benefits. This research uses a descriptive qualitative research approach. The type of research used is library research (Library Research). namely by examining articles, books and website pages to obtain data, theories and concepts related to this research.
As the world is advancing into a more digitalized version of itself, people's needs and luxuries are evolving with it.People are gravitating towards online shopping rather than visiting shops physically.In e-commerce, most of the interactions between the buyer and seller occur through an online medium.So, it is essential to have a secure form of interaction between them.This project aims to make a secure interaction between the buyer and seller.The owner who owns the product and the buyer who sells the product both have the unique encrypted id, which will contain the whole transaction detail.The owner who owns the product that can add the product to the blockchain and the buyer who wants to buy has to use his/her encrypted buyer id which is shown on the website to buy the product.When the transaction has been performed using an Ethereum currency the transaction hash is generated which is secure (encrypted) such that if anyone tries to decrypt it is not possible.This project involves the use of smart contracts where it refreshes the encrypted ids on the last transaction and no second transaction id from the same buyer is the same as the first transaction.
Nowadays we are seeing that the merchandise (product) we are buying can have (20-25) % chances that it can be fictitious merchandise. And this also affects the sales of the company. This paper discusses an application called "Fictitious Merchandise Detection Using Blockchain" to avoid the situation of Fake Products. Blockchain is a decentralized distributed ledger, any updating cannot be a part of this ledger. Blockchain consists of blocks that have their own hash value produced by an algorithm known as SHA-512 or SHA-256. This is an independent ledger I.e., it does not depend upon third parties. So here we are using a QR code scanner that will scan the QR code provided by the user then, it will match that QR code with the blockchain database. If it is matched, a popup message will be generated "Concrete Merchandise" otherwise "Fictitious Merchandise" will be generated as a popup message.
The title of this study is to analyze the effect of cryptocurrency returns and cryptocurrency volume on the stock price indices of Indonesia, Singapore and Thailand. This research was conducted using the panel data regression method by combining cross section data with time series data using Eviews software. This study uses cryptocurrency returns and volumes in a weekly period from 1 January 2018 to 31 December 2021 for 48 weeks for each country with a total of 144 data. The results of this study indicate that cryptocurrency returns have a significant positive effect on the stock price indexes of Indonesia, Singapore, and Thailand. and cryptocurrency volume has a significant positive effect on the stock price indices of Indonesia, Singapore and Thailand.
Muhammad Rizky Nasution, Isfenti Sadalia, Nisrul Irawati
This study uses research variables such as Trading Volume, Market Capitalization, S&P 500 Index, World Oil Price, Gold Price on Bitcoin Returns. The data source in this study is through internet media with the sites https://coinmarketcap.com/, https://finance.yahoo.com/, and other sites that support this research. The data used in this study are time series, and the target population for the data sample is 1,096 (3 years x 365) daily report data. The data were collected from January 1, 2020, to December 31, 2022, through the release of daily bitcoin transaction reports. Time series data analysis using Engel Granger's Error Correction Model is the method employed (ECM). The analysis tool used is the Econometric Views (Eviews) which is one of the computer econometric program. The results of this study where trading volume has a positive and insignificant effect on bitcoin returns. The impact of market capitalisation on bitcoin returns is both favorable and significant. Returns on bitcoin are positively and significantly impacted by S&P 500. The returns on bitcoin are negatively and insignificantly impacted by the price of world oil. Returns on bitcoin are positively and negligibly impacted by the gold price.
Luh Gede Kusuma Dewi, Nyoman Trisna Herawati, Made Arie Wahyuni
This research aims to determine the effect of perceived benefits, perceived convenience and perceived risk on cryptocurrency investment interest in the province of Bali. The population of this research are all students in the province of Bali. The sampling method in this research used a non-probability sampling method with an accidental sampling approach. The results indicate that The Effect of Perceived Benefits (X1) has a significant effect on Cryptocurrency Investment Interest (Y); The Effect of Perceived Ease (X2) and The Effect of Investment Risk (X3) has no significant effect on Cryptocurrency Investment Interest (Y). Based on the results of the R-Square test, perceptions of benefits, perceptions of convenience, and investment risk affect interest in cryptocurrency investment by 21.9%, while the remaining 78.1% is influenced by other variables outside of this research. It is hoped that this research will be useful for the development of future research.
 Key words : perceived benefits; perception of convenience; risk perception; investment interest; cryptocurrency
What is blockchain technology?since its invention in 2008. The first decentralized by Satoshi Nakamoto. He improved the overall design using a Hashcash like method. The design was implemented as a core component of the cryptocurrency bitcoin where its serves as the public ledger for all transaction on the entire network. It is a digital ledger technology that allows for secure and transparent record-keeping of transactions.In a blockchain, every participant has a copy of the ledger, and all transactions are verified and recorded in a decentralized and transparent manner. The security of the blockchain comes from the fact that once a block is added to the chain, it cannot be altered or deleted without the consensus of the network.Besides its original use case in digital currencies, blockchain technol- ogy has been applied to various industries, such as supply chain management, healthcare, real estate, and voting systems. Its po- tential benefits include increased security, transparency, effi- ciency, and decentralization. One of the key benefits of using blockchain technology in voting is the ability to create a trans- parent and decentralized system. This means that anyone can verify the accuracy of the results, and there is no need for a centralized authority to oversee the process. The blockchain acts as a distributed ledger, with each node on the network hold- ing a copy of the transaction history. Key Words: Blockchain, Voting
Blockchain is a digital ledger of transactions that is duplicated and spread over the whole network of computer systems on the blockchain, and it is a system of preserving information in a way that makes it difficult or impossible to edit or hack. Collecting, identifying, evaluating, analyzing, preserving, and presenting evidence is a difficult task in existing forensics. That's where the blockchain'sdecentralized nature comes into play, with forensic data being stored in the private network using the blockchain's nodes in a peer-to-peer network. Digitalforensics will also be more secure,and the investigation will be more transparent to those on the other side of the jurisdictional border. In the criminal investigation process, information that frequently changes is stored in the hotblockchain, and unchanging data such as videos are stored in the cold blockchain. In this we are using the Ethereum concepts and implementing smart contracts. Keywords - ledger, chain of custody, Hyperledger fabric, forensic.
Non-Fungible Tokens (NFTs) was a popular crypto asset in the year 2021-2022, where viral news involving a NFT with huge price being sold causes a big interest to NFTs and OpenSea, one of the biggest NFT market place, and creating supply and demand for buying and selling NFTs, especially people who are only aware of cryptocurrency becoming the one who buys cryptocurrency and crypto assets. Although NFTs has since lost its initial exposure, the literatures of NFTs remains scarce, and the research involving NFTs has since been lower. This research is aimed to reviews literatures involving NFTs, using literature review method with „NFTs“ or „Non-Fungible Tokens“ as keywords to search for relevant literatures and research articles. The result of the research gave a definitive definition of NFTs compiled from many authors, the method people use to create NFTs and ways to invest NFTs safely, opportunities and risks in investing NFTs and the technological aspect, and what the future has for NFTs, investing and technological wise.
Exploring the new developments and paths in the education system is one of the motives for Oman's 2040 Vision. Blockchain technology restructured businesses and many other sectors. Similarly, the implementation of blockchain technology in the education sector is new but it seems to offer various benefits which are associated with blockchain. This study aims to explore the use of blockchain technology in the education sector of the Sultanate of Oman. The study offers a conceptual model which portrays the five attributes of blockchain technology as the fascination to adopt while the implementation of blockchain in education offers enhanced student performance and record management benefits from the student perspective. The future of the education sector is based on technological developments and advancements such as blockchain technology.
The educational institution's digital certification In the current scenario of digital certification with a digital signature, a blockchain technology server is utilized. There is a chance of updating or creating phony certificates in order to prevent the organization's use of digital certification in the future. By enabling tamper-proof data storage, this blockchain technology will prevent server hacking and data modification. In order to prevent counterfeiting in blockchain technology offers the electronic data file that is formed in the ledger using the hash function it tampers with. A secured, unchangeable, authenticated certificate is produced by this method. In the transparent network, a document that has been digitally signed and approved by peers is exchanged. They are granted these certifications. The blockchain is attracting intense media and scientific interest while igniting interest in its possible applications and function in promoting social decentralization [9] and independence from centralized authorities. The impact that the widespread use of this technology will have on our societies, both positively and negatively, has received a lot of attention. Despite all of this thought, there isn't much literature that addresses the issues it might present, except for technological ones. The introduction of blockchain can be likened to the development of the Internet, demonstrating the potential for profound changes in a variety of industries. Although, in accordance with presented a first analogous example of this technology.Finally, the system will use smart contracts to automate processes and ensure data accuracy. Smart contracts are self-executing programs that are stored on a blockchain and can be used to facilitate transactions and agreementsbetween two parties, without the need for a third party. Smart contracts will ensure that the data is accurate and up to date, as well as provide an additional layer of security. This will ensure that the transactions are secure and can be verified by anyone on the network.
I Putu Okta Priyana, Made Ayu Jayanti Prita Utami, Upayana Wiguna Eka Saputra
With the use of blockchain technology, this research sought to understand the applications, benefits, and limitations faced by circular economy-based businesses. This research was conducted at the Plastic Bank Company, which used a digital conference room to allow interviews that could not be conducted in person, as well as the researcher's residence for online data gathering and document review. Five management members of the Plastic Bank Company comprise the sample population. The information used is first-hand information derived from interview findings. In order to acquire data, several methods including interviews, document analysis, and observation were applied and tested by Triangulation. The findings of this study revealed: 1) Companies with a circular economy may employ blockchain technology to change supply chain operations, tracking, and tracing. 2) Blockchain technology has benefits for businesses based on the circular economy, including easier distribution management, less duplicate papers, increased cost effectiveness, and the ability to turn plastic trash into digital cash. 3) The general public is still unaware of the use of blockchain technology for businesses that rely on the circular economy. Furthermore, the company's success is constrained on a small scale due to the absence of finance from affiliated parties. Therefore, in order to grow the use of technology on a big scale, this circular-based economy firm for plastic banks has to strengthen its performance and efforts.
Blockchain, the backbone of Bitcoin, has lately gained a lot of attention.Blockchain functions as an inflexible record that enables decentralized deals.Blockchain-grounded operations are sprouting up in a variety of diligence, including fiscal services, character systems, and the Internet of Things (IoT), among others.still, numerous hurdles of blockchain technology, including scalability and security issues, have to be overcome.Numerous diligences, including finance, drug, manufacturing, and education, use blockchain operations to subsidize this technology's unique set of parcels.Blockchain technology (BT) has the implicit to ameliorate responsibility, collaboration, association, identity, credibility, and translucency.We give an overview of the blockchain armature, different kinds of blockchain as well as information about the Decentralized apps which are also known as Dapps.An in-depth analysis of blockchain technology is provided in this study.
There are a lot of things that humans cannot do, and one of them is being fair, especially when he is running a casino. However, Ethereum can. Constructing a casino that is regulated by Ethereum can give us the first fair casino in the world. With the help of some technics of cryptography, which are public/secret key schemes and one-way functions, the secrecy and privacy in the gambling of each player can be ensured while still making the game fair by the blockchain. During the construction, Ethereum is also found to be fit for the casino’s other aspects such as propaganda and payment. By successfully constructing such a casino, a way of converting the fixity of blockchain into fairness is proposed in the area that needs it and lacks it the most, which is a casino. Following down this road, any area that lacks fairness can exploit Ethereum or block-chain to find a way to achieve fairness.
Purpose As information providers, libraries select, acquire, process, store, preserve and distribute information resources to customers. Innovative technologies like the blockchain have posed major challenges to education and library services. The main goal of the application of blockchain technology (BT) in libraries and information centers is to give all possible users in participating library systems unrestricted access to digital content and print collections while minimizing risk to protect each user’s privacy and identification. A fresh and dependable technology called blockchain aids in the security, reliability and preservation of information. The 21st century’s change agents’ libraries are implementing new technologies to deliver the most knowledge possible in the shortest amount of time. It cannot be overstated how this technology has the potential to transform library services, operations and functions. Design/methodology/approach An extensive review of literature on “smart libraries” was carried to ascertain the emerging technologies in the smart library domain. Literature was searched against various keywords like smart libraries, smart technologies, Internet of Things, electronic resource management, data mining, artificial intelligence, ambient intelligence, BT and augmented reality. Later on, the works citing the literature on smart libraries were also explored to visualize a broad spectrum of emerging concepts about this growing trend in libraries. Findings Blockchain is one of the rapidly expanding and evolving technology. Librarians and library need to understand the opportunities, benefits and risks of blockchain. Perhaps in libraries, BT will become a useful tool for storing, storing and sharing information. This technology also aids in the acquisition of library materials that can improve collection maintenance. Blockchain can protect user and patron records and enhance the privacy of user and research data. This technology also improves collaboration among library patrons and staff. BT is increasingly being adopted by libraries in various ways. It creates an improved metadata system to protect digital-first selling rights, peer-to-peer sharing and more. Apart from what have been already discussed, this technology is perfect for academia and perfect for achieving potential pace in libraries. It can be used to safeguard library user records, retrieve libraries document and improve collection management. A special bulk request enables identification and discovery of unique holdings. Scientific writing is another good use case for blockchain, where researchers can record and time-stamp ideas and spread information. BT presents a significant opportunity for libraries to enhance user privacy, enhance collaboration and transform the manner in which libraries and communities collaborate. The University of San Jose in Toronto, the Reference Library, the Suffolk Collaborative Library System and many other libraries are exploring this technology, and various other libraries are set to follow suit. Originality/value The paper tries to highlight the usage of blockchain technologies in the libraries and information center setups for the efficient working of library setups. Blockchain is one of the emerging technologies that have the potential to bring the technology revolution.
NFT atau Non-Fungible Token adalah sebuah teknologi kripto berbasis komunikasi visual yang tercatat dalam blockchain. Salah satu NFT yang berhasil adalah Cryptopunks dari Larvalabs. Cryptopunks mempunyai 10000 NFT berbasis pixel 8-bit dengan ciri khasnya masing-masing. Kepopularitasan Cryptopunks dapat terlihat dari harga penjualan NFT mereka yang di tahun 2021 ini yang mencapai jutaan dolar. Penelitian ini berusaha menganalisis faktor pendukung dari keberhasilan NFT ini dilihat dari strategi komunikasi visualnya. Dengan menggunakan metode kajian data konten dan visual Cryptopunks dan komunitasnya, hasil dari penelitian ini menunjukkan bahwa NFT Cryptopunks berisi elemen visual dengan warna yang relatif sedikit, sifat bentuk dua dimensi yang disusun oleh bentuk-bentuk geometris. Variasi antar jenis NFT Cryptopunks relatif sedikit dan hanya ditentukan oleh “sosok” atau “figur” dan benda-benda yang melekat bersamanya seperti topi, rantai emas, kacamata hitam, bandana, pipa dan sebagainya, keseluruhannya dalam format 8-bit. Secara elemen visual, NFT Cryoptopunks secara teknis mudah ditiru dan direproduksi, sehingga tidak memiliki keistimewaan. Sementara itu berdasarkan hasil wawancara terhadap para informan yang dipilih berdasarkan sampel purposif, NFT Cryptopunks tidak memiliki keistimewaan secara visual tetapi hal yang membuatnya populer adalah terkait dengan konsep-konsep yaitu desentralisasi, demokratisasi, keunikan, otentisitas, kepemilikan, konsistensi, organik, pasar, wacana dan sejarah. Kata kunci: blockchain, cryptopunks, komunikasi visual, non-fungible token
Charity organizations are susceptible to the same kinds of fraud that harm businesses because donors lack confidence in how their money is being used. the requirement to provide a unified platform for monitoring donations that will monitor all data related to donations transactions and donors Lack of trust on the part of donors in how donations are used is a result of skepticism over how donations are used. Building a single platform for tracking donations that would manage all information regarding gift transactions is essential since charities are vulnerable to fraud that affects corporations, such as executive misuse of funds and embezzlement. Keywords—Transparent system, Smart contract, Blockchain, Charity, Ethereum, Digital charity.
Cryptocurrency is a digital currency that functions as a standard currency and can be traded virtually without service fee and have a reliable institution. Investors and traders are interested in buying or acquiring cryptocurrencies and expect to make a profit when selling them. Apart from mining, cryptocurrencies can obtain by buying through cryptocurrency exchanges. The cryptocurrency exchange is helpful as an intermediary for buying and selling crypto assets. There are many types of cryptocurrency exchanges circulating, and it makes users have to select carefully the exchanger they will use. Based on this problem, a decision support system is needed to facilitate the decision-making. The method used in this research is the Analytical Hierarchy Process (AHP). This method is selected because it helps multi-criteria decision-making, solves complex problems into small forms, and receives input from human understanding by defining problems, making hierarchies, conducting comparative assessments, determining priorities, and calculating consistency values. The final result of this research using the AHP method can be seen that Binance is the most recommended cryptocurrency exchange to be used for investing or trading because it earns a percentage of 35.34%, followed by FTX at 28.35%, Huobi Global at 18.05%, Gate.io at 6.96%, KuCoin at 5.76%, and Indodax 5.55%. The results of this calculation are obtained by calculating the priority criteria and alternatives.
Abstract: Mata uang kripto, seperti Bitcoin telah memicu diskusi yang intens. Meskipun mendapat perhatian publik yang luas, pemahaman teoritis terhadap nilai mata uang digital berbasis blockchain masih sangat terbatas, misalnya dalam menentukan besaran tukaran bitcoin terhadap mata uang konvensional yang sangat sulit. Penelitian ini berbasis teori mengenai penentuan nilai tukar Bitcoin (terhadap USD), dengan mempertimbangkan faktor teknologi dan ekonomi. sejak awal tahun 2013 karena fluktuasi harganya yang sangat besar. Penelitian ini menguji pengaruh nilai tukar (USD/ AUD, USD/ EUR, USD/ GBP, dan USD/ JPY) terhadap imbal hasil bitcoin yang mencakup periode 2018 hingga 2022 melalui data sekunder berupa closing price bulanan dari tahun 2018 – 2022. Data yang diambil menggunakan data bulanan selama periode 2018-2022. Teknik analisis data menggunakan data deret waktu dengan bantuan Eviews 10 dan metode model uji Autoregressive Distributed Lag (ARDL) untuk menganalisis pengaruh variabel independen terhadap variabel dependen. Hasil penelitian menunjukkan bahwa return Bitcoin terpengaruh secara signifikan dari nilai mata uang USD/JPYdan tidak terpengaruh secara signifikan dari nilai mata uang asing (USD/ EUR, USD/GBP, USD/ AUD dan USD/ IDR). Hal ini mungkin sebagian disebabkan oleh faktor umum yang mempengaruhi pengembalian USD/JPY dan Bitcoin secara bersamaan dalam beberapa waktu terakhir. Pihak- pihak yang tertarik dapat fokus untuk menyelidiki pengaruh nilai tukar terhadap mata uang kripto dengan mengambil beberapa mata uang digital, tidak hanya bitcoin.