Blockchain Papers

璐婕 邓

No abstract is available for this record.

荣玲 陈

No abstract is available for this record.

Zeming Wei, Junlang Zhang, Shansi Ma, Yu Zhou · 9 authors

No abstract is available for this record.

Yunfei Xia

The popularity of non-fungible tokens (NFTs) has engendered a perception among individuals of the boundless potential inherent in digital art assets.Nevertheless, the proliferation of NFTs inside the digital ecosystem has brought forth new issues in terms of government regulation and financial oversight.The establishment and safeguarding of digital rights and interests have emerged as a crucial concern in the context of the digital economy.In order to address these issues, a novel terminology, namely non-fungible rights (NFR), has been introduced within the Chinese market.In the era following the epidemic, the dissemination of digital collections has shifted towards NFR as the primary mode.Yet, for them to have a significant presence in the market, digital collections must acquire a substantial share and offer practical utility with their inherent worth as collections.And the sustainable development of virtual capital can be enhanced by its integration with the actual world and the convergence of reality and virtuality.Hence, this study primarily examines the current state and prospective advancements of NFR, and it takes "Bored Ape Yacht Club" in Li Ning, China, as an example to propose the future of the collaborative development of NFR, the digital economy and the real economy.

Kanis Saengchote, Voraprapa Nakavachara, Yishuang Xu

When land becomes more connected, its value can change because of network externalities. This idea is intuitive and appealing to developers and policymakers, but documenting their importance is empirically challenging because it is difficult to isolate the determinants of land value in practice. We address this challenge with real estate in The Sandbox, a virtual economy built on blockchain, which provides a series of natural experiments that can be used to estimate the causal impact of land-based of network externalities. Our results show that when new land becomes available, the network value of existing land increases, but there is a trade-off as new land also competes with existing supply. Our work illustrates the benefits of using virtual worlds to conduct policy experiments.

Hsiao Tsung-Chih, Nan-Kai Hsieh, Chien‐Yun Chang, Tzer‐Long Chen

No abstract is available for this record.

Yu Wang

As technical service provider, non-fungible token (NFT) digital work trading platforms directly gain economic benefits from transactions, and thus the platform should assume higher prior censorship obligation, bounded by the obligations due to a good administrator.When NFT digital work trading platforms bear the liability for calling off infringement, in case of failing to delete the infringing works on the blockchains, and punching the address blackhole may damage the bona fide trading counterparty; the system of "infringement without bearing the liability for stopping infringement" can be introduced to balance the interests of all parties.

北京市金杜律师事务所, 振源 云

2021年被称为元宇宙元年。2021年初，SoulApp在行业内首次提出构建“社交元宇宙”。同年3月，被称为元宇宙第一股的罗布乐思(Roblox)正式在纽约证券交易所上市；一时间，元宇宙、Web3、NFT等概念甚嚣尘上，而元宇宙的底层核心技术区块链其实已经诞生了很久，但似乎除了加密货币的炒作外，并没有被人们广泛熟知。本文分析了区块链技术相关的若干热点问题，特别是从法律监管层面探讨了当前的监管思路和可能的挑战。

Hyoung Joong Kim

분산금융은 스마트계약을 기반으로 암호화폐를 이용하여 이루어지는 금융을 말한다. 분산금융은 전통금융처럼 중앙집중식 거버넌스를 제외하고 분산형 거버넌스만 포함하는 경향이 있다. 아직 분산금융은 소규모의 참여자들을 대상으로 실험적으로 운영되고 있으나 그 영향력이 날로 커지고 있다. 이 논문에서는 분산금융 영역을 스마트계약을 이용한 암호화폐의 대출, 교환, 보관에 국한하지 않고 자본모집, 분산자율조직까지 포함하였다. 분산금융의 여러 사례를 전통금융과 비교하여 디지털 경제에서 참고할 특징에 대해 고찰했다.

Xiangyu Chen

Exorbitant costs and extensive lead times are key concerns for transboundary payments. Transboundary deals face greater development challenges than domestic payment systems since they require a high degree of trust and include currency conversion. In this context, blockchain can successfully establish new cross-border payment services and promote cross-border commerce by employing a distributed public ledger that integrates public key encryption and peer-to-peer technology. Blockchain has got two key characteristics: distributed consensus and anonymity. By eliminating intermediaries between third-party finance agencies, it not only allows for instant payments around the clock but also contributes to mitigating the exposure to transboundary capital flows and meeting consumer needs for expedient transboundary payments and clearing services. This paper argues that while blockchain technology eliminates problems and presents effective strategies for conventional transboundary payments, it also raises many legislative and regulative issues for China. As the law itself is not yet mature, especially given the changes in international payments in the wake of the epidemic, it is worthwhile to explore the operating rationale and regulation obstacles of blockchain to the maximization of profits and minimization of risks in transborder payments by leveraging its inimitable strengths.

Ke Zhong, Tuyatsetseg Badarch

Blockchain provides IoT security and privacy in all industries including manufacturing, finance, healthcare, supply chain, e-governance, education, banking, and trading through decentralization, persistency, anonymity, and auditability characteristics. This paper presents the blockchain technology assimilating with other data security technologies to design a blockchain based data sharing system. Based on the design the network architecture of data sharing system, we test and analyze various processes in data sharing. To test the function and security of the system, we have built a test environment with data sharing system consisting of three blockchain nodes, four data participant nodes (three data users, one data provider), and a data-sharing system composed of CA. We developed Base App as an application provided by the data user, including addition, deletion, check modification of data in the application code for data sharing. We simulated an experiment related scenario, and then we wrote a program to generate the vehicle information data and import it into MySQL for storage. The paper has found some valuable results of functional test, system test, safety test, and performance test of the data sharing system. This system realizes the possibility of a system that can connect multiple participants and their corresponding data.

诗涛 全

No abstract is available for this record.

Saurav Taneja

No abstract is available for this record.

Cong Jiang

No abstract is available for this record.

Pengfei Li, Miao Wang

With the growing popularity of bitcoin, blockchain technology, as its underlying technology, has gained more and more attention. The technical innovation brought by blockchain technology such as decentralization and strong trust mechanism coincides with the nature of finance, which brings a new variable to the development of Internet finance, promotes the innovation in financial products and accelerates the development of mixed operation. At the same time, however, China’s current legal system of Internet finance is impacted by digital finance, which presents difficulties such as weakening the main bodies of financial regulation, confusing the objects of financial regulation and making it more difficult to protect financial consumers. Therefore, in the application of digital finance technology such as blockchain technology, Internet finance laws need to change the path of institutional evolution to meet the regulatory requirements brought by new technologies. The reform and impact of blockchain technology are promoting the transformation of Internet financial regulation mode from separate institutional regulation to functional regulation, from institutional regulation to technological regulation, and from monocentric regulation to multicentric regulation, as well as the transformation of the financial consumer protection mechanism.

Tianyu Liu, Dayan Lin

For the traditional financial industry, blockchain technology has brought an unprecedented revolution. In recent years, blockchain technology has become one of the most important research directions of financial technology in commercial banks in China. The application of blockchain technology in commercial banks can help optimize payment and settlement system, improve credit risk management and control mode, improve the operation efficiency of the middle and back office, and develop smart finance. At the same time, blockchain technology brings many challenges. Based on the introduction of the evolution and characteristics of blockchain, this paper analyzes the necessity of the application of blockchain technology in China's commercial banks, puts forward the policy advices of the application of blockchain in commercial banks.

宇帆 沈

随着电子商务技术的不断发展与应用，物资的利用率却并未随之相应提高，因此带来的是大量价值的浪费与闲置。根据创建节约型社会的需要，如何有效提高物资的回收与流转尤为重要。而在传统的电子商务技术的物资回收流转中，如何解决因信息不对称带来的信任缺失问题非常困难。本文研究在小型区域的物资回收流转过程中如何通过区块链技术提高物资流转的多方信任程度从而提高物资回收流转概率和减少价值浪费，创新地使用零知识证明技术保证价值流转过程中地隐私。并且，本文在典型的小型特征区域进行基于区块链技术的高可信度物资回收流转系统的设计、实现与应用。结果表明，区块链技术在小型区域价值流转系统中构建了新的基于算法的信任机制体系，减少信息不对称带来的信任缺失问题，有效提高价值流转效率。 With the continuous development and application of e-commerce technology, the utilization rate of materials has not been correspondingly increased, so a large amount of value is wasted and idle. According to the needs of creating a conservation-minded society, how to effectively improve the recycling and circulation of materials is particularly important. However, in the material recycling and circulation of traditional e-commerce technology, it is very difficult to solve the problem of lack of trust caused by information asymmetry. This paper studies how to use blockchain technology to improve the multi-party trust of material circulation in the process of material recovery and circulation in small areas, thereby increasing the probability of material recovery and circulation and reducing value waste, innovatively use zero-knowledge proof technology to ensure wealth in the process of value transfer. In addition, this article designs, implements and applies a high-relia- bility material recovery and circulation system based on blockchain technology in a typical small characteristic area. The results show that blockchain technology builds a new algorithm-based trust mechanism system in a small regional value transfer system, reduces the lack of trust caused by information asymmetry, and effectively improves the efficiency of value transfer.

Songqin Ye, Jiangjiarui Zeng

This article is based on the security, traceability, immutability and transparency of blockchain technology, aiming at the pain points of information asymmetry, financing difficulties, expensive financing, and weak supervision in the development of supply chain finance, to study how to use the core technologies of distributed ledgers, peer-to-peer transmission, associated credit, and smart contracts in blockchain technology to empower supply chain finance, expand the scope of blockchain technology, and provide technical support for the supply chain financial model. Strategic cooperation system to conduct innovative research on the combination of supply chain finance and blockchain technology.

Yuyan Zhou, Yana Zhou, Yana Zhou, Yana Zhou

As an important part of China's national economy, small and medium-sized enterprises (SMEs) play an important role in promoting China's economic growth, expanding jobs and increasing national tax revenue. However, due to the small scale of SMEs, low level of credit, lack of collateral, they are often plagued by narrow financing channels, financing difficulties and expensive financing, so a new technology is urgently needed to solve the current financing plight of SMEs. In recent years, block chain technology has attracted wide attention worldwide due to its decentralized and trustfree technical mechanism, and has become another new thing that can be popularized and applied on a global scale after the Internet. In this paper, "block chain" and "finance" are perfectly combined, aiming to use the properties of decentralization, immutability and traceability of block chain technology to improve the credit level of small and medium-sized enterprises and expand their financing channels. It is expected to effectively solve the financing difficulties of small and medium-sized enterprises, promote the sustainable and healthy development of small and medium-sized enterprises, and make greater contributions to the national economic growth.

梦雅 郑

随着数字经济的不断发展，以比特币为代表的数字加密货币盛行，给相关税收征管带来了极大挑战。本文从比特币的基本原理出发，利用python还原其挖矿机制，梳理比特币的交易流程。通过比较世界其他各国对比特币属性的界定以及相关税收政策，提出我国未来关于数字货币税收征管问题的设想。 With the continuous development of the digital economy, the prevalence of digital encrypted cur-rency represented by bitcoin has brought great challenges to the relevant tax collection and man-agement. Based on the basic principle of bitcoin, this paper uses python to restore its mining mechanism and combs the trading process of bitcoin. By comparing the definition of Bitcoin attrib-ute and related tax policies in other countries in the world, this paper puts forward the assumption of tax collection and management of digital currency in the future.

蔡文玲

非同質化代幣（Non fungible token，以下簡稱NFT）為近期新興的議題，NFT是透過區塊鏈技術，讓數位資產上鏈後產生代幣，每一枚代幣都有它獨特的編號，具有獨一無二的特性。而此項技術解決了過去數位資產可以重複複製的特性，是以此具有唯一性的代幣即廣泛被應用在遊戲、運動、音樂、數位化收藏品等，並且在市場引發具有新聞話題性的交易。而依照NFT特性，未來發展應會在智慧財產權、權利證明及粉絲經濟等面向發展。 但由於NFT使用區塊鏈技術且多需要使用加密貨幣進行交易，繁複的程序及幣值的換算，對於一般消費者而言應會過於困難而影響NFT市場的普及化，另外由於NFT本身法律定位尚不明確，而NFT在交易市場所創造的拍賣天價，亦可能是基於話題性而被炒作而成的交易，未來是否可以持續發展還是會泡沫化，仍然值得觀察。因此建議未來可在NFT法律議題，以及NFT商業模式發展進行研究。

Yan Li

Bitcoin is considered a cryptocurrency and a digital currency, the two most notable characteristics are decentralization and anonymity. Bitcoin has a variety of properties. It could play not only the currency function but also have certain commodity property. To some extent, it can also be seen as an alternative investment option. The price of Bitcoin has stayed at a high level since 2021, but with greater volatility and more obvious amplitude than before. With the risk and potential problems of Bitcoin, the possibility of whether Bitcoin would lead to a big bubble in the financial market has increased. Although the legal status of Bitcoin is varying and having unclear or constantly changing definitions in different countries, the government is strengthening supervision and regulation over digital currency and planning to issue state-controlled currency, which would narrow the space for Bitcoin. Therefore, the possibility that Bitcoin will end up in a bubble is growing. At the same time, it is becoming increasingly clear that Bitcoin would not eventually gain legal tender status, driven by a combination of government denial and a lack of real value.

Hao Fu, Wenhai Nie, Li Liu

The traditional offline review model of grid projects has the problems of high cost, high risk and low efficiency, making the project review insecure and inefficient. What is worse, the review data of a grid project are generally stored in a central database, which is vulnerable to attacks and not highly trustable. To solve the problems, this paper proposes a ring signature trust model based on smart contract, an important blockchain technology, for project review. The blockchain technology was introduced to build an online review platform for grid projects, greatly saving human and financial resources. Then, the consensus efficiency was improved with a trust-based node consensus mechanism. Besides, the ring signature was integrated with smart contract to allow review experts to submit their results anonymously, ensuring the fairness and impartiality of grid project review. On this basis, an efficient review system was established for grid projects, and a secure review environment was created, so that the review results will not be tampered with. The case analysis proves that the proposed method can effectively solve the problems of traditional grid project review, making the review system more secure and efficient. The research findings provide decision and theoretical supports for grid project review.

Yufan Wang, Jianbiao Li, Yongfeng Hu

With the development of integrated energy services, the number, scale and information data of multienergy transactions increase sharply, the time and material costs of energy transactions become higher, and users have higher requirements for the fairness, transparency and privacy of transactions. As a decentralized distributed accounting system, blockchain is characterized by traceability, security, credibility and non-tampering of transactions, which can meet the needs of integrated energy and multi-energy transactions. Based on the research on the application of blockchain technology in the field of integrated energy services, this paper proposes a integrated energy trading process based on smart contract, launches a new trading mode of “Energy Package”, and explores the application of blockchain technology in integrated energy services.