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October 12, 2018 REPORT

2nd IMA Conference on Theoretical and Computational Discrete Mathematics

2nd IMA Conference on Theoretical and Computational Discrete Mathematics Symposium : 2nd IMA Conference on Theoretical and Computational Discrete Mathematics Field : Blockchain Economics location : The Enterprise Centre, University of Derby Date : 14 september ~ 15 September Speaker : Juhee Lee Title : Minimal Condition for Shortest Vectors in Lattices of Low Dimension Author : Juhee Lee et al. Abstract : For a lattice in the Euclidean space, finding a nonzero shortest vector is com- putationally difficult in general [1]. Lattice-based cryptography is based on the difficulty of this and related problems. The problem becomes quite complicated even when the di- mension of the lattice is five. There are two closely related notions of reduced bases, say, Minkowski-reduced basis and greedy-reduced basis [2]. For n ≤ 4, it has been shown that these two notions are equivalent and one can always compute a shortest nonzero vector effi- ciently using greedy reduction algorithm [2]. However, when the dimension becomes n = 5, these two notions look irrelevant in the sense that there are five dimensional greedy-reduced bases without achieving the first minimum while any five dimensional Minkowski-reduced basis contains the shortest four linearly independent vectors. This suggests that the notion of Minkowski-reduced basis is somewhat strong and the notion of greedy-reduced basis is too weak for a basis to achieve the first minimum of the lattice. In this work, we investigate a more appropriate condition for a basis to achieve the first minimum for n = 5. We prove a sufficient condition for a basis to achieve the first minimum for five dimensional lattice. Our condition starts from two dimensional Gaussian-Lagrange basis. Our condition consists of two parts of inequalities for the members of the basis to satisfy, APG(Adjusted Pairwise Gaussian) and (+). The part APG can be defined for a basis of any dimension and the (+) part is only for dimension five. We also prove that the sufficient condition is minimal in the sense that any proper subset of the required inequalities is not sufficient to achieve the first minimum, and that if a greedy-reduced basis satisfies our condition, then it is a Minkowski-reduced basis.

September 13, 2018 NEWS

ARIST Newsletter – September 13th

ARIST Newsletter – September 13th After its opening in June, ARIST began hiring researchers. Currently, in research teams master and doctor researchers from various fields such as CP, TC, PT, BE, and etc are set up to get down to the business. CP team studies consensus algorithms that ensure a higher expandability and better efficiency than existing consensus protocols such as PoW, PoS, FBA, and etc. TC team studies Trust Contract, a more stable contract that can resolve Smart Contract’s weakness of undecidability through Owlchain and Timed Automata Language. PT team develops a decision-making system while ensuring privacy in the blockchain and studies security through the blockchain. BE team studies how organizational strategies, corporate governance, business processes and organizational structures will change by proving the reliability of personal information through the blockchain. Recently, BE team announced “Building a Democracy in an Organization” in the Blockchain Technologies and Organization Research Symposium. at the University of Connecticut. Also, PT team is planning on presenting a paper at the IMA conference of university of Derby. Each teams hold seminars every Friday. ARIST selects five major tasks and aims to become a research institute that can conduct world-class research independently in a horizontal structure. ARIST is recruiting researchers, visit at (http://arist.io/careers/) for more details.

September 4, 2018 REPORT

Blockchain Technology & Organizations Research Symposium 2018

Blockchain Technology & Organizations Research Symposium 2018 Symposium : Blockchain Technology & Organizations Research Symposium 2018 Field : Blockchain Economics location : The university of connecticut Date : 14 and 16 August Speaker : Yejin Lim Title : Congress Voting and Public Financing Author : Yejin Lim, Abhisheka Dubey, Kibae Kim Abstract : Cryptocurrency on the ground of blockchains brings opportunities of business in the era of digital transformation. However, economists warn the overestimation of cryptocurrency in the market and the speculative investment in the untested technologies. We consider this conflict between opportunities and risks of blockchains causes the prior work focuses on the cryptocurrency among various use cases of blockchains, and thereby propose a new approach to blockchains that can transform an organization into a democratic style. That is, a cryptocurrency supplier lays all exclusive rights to the decision on its business down on the society so that its members build credit to cryptocurrency by themselves, and the supplier lasts long as a member of the society. Our approach will suggest the way to which an organization transforms its strategies and governance, especially, a start-up enters the rigid conventional finance system.

July 10, 2018 NEWS

ARIST’s first campus recruiting

ARIST’s first campus recruiting ARIST’s first campus recruiting will be held on Thursday, July 12, at the Department of Information Electronics Engineering in KAIST at 12PM. The plan is to introduce ARIST, give informations with the topic of prospect of Blockchian, and communicate with participants. In addition, there will be a presentation on the theme of “The world of Homer Rudens which fulfills with the Blockchain technology” by CEO Yezune Choi, and “Blockchain and cryptocurrency, programming economy” by CSO Myungsan Jun. And Director of ARIST, Jonghwan Lee plans to provide research field descriptions, community and intern recruitment information. All applicants who participate in this event will broaden the understanding of the Blockchain, obtain the recruitment information, and have an opportunity to get job counseling. Preferably, participation is accepted in advance, but it can also be accepted the day of this event.

June 22, 2018 NEWS

ARIST opening ceremony

ARIST Opening Ceremony The Advanced Research Institute for Social Trust (ARIST), spanning over 510 square meters(5500 sq. ft.) and housing rooms for purposes such as private research, cooperative studying, and resting, held an opening ceremony in Dunsan-dong, Daejeon on June 12. The opening ceremony was attended by Yezune Choi, the CEO of Block-chain OS, Inhwan Kim, the president of BOS platform foundation, Professor Eunkyoung Jee of KAIST with her team, as well as other executives and staff members. The ceremony began with congratulatory greetings, guest introductions, and the unveiling of the anticipated statue, and a group picture and reception soon followed. During the presentation, Institute Director Jonghwan Lee stated “We will do our best to create a society where we can live well together.” ARIST is conducting its research on the selection of five tasks with the intention of creating a society in which public values are recognized so that everyone can lead decent lives and through the results, they are aiming to commercialize research technology to BOSNet, Public Blockchain 3.0.

May 3, 2018 BLOG

Advanced Research Institute for Social Trust

Advanced Research Institute for Social Trust ARIST is a research institute established by BlockchainOS under Bos platform foundation in Zug, Swiss. ARIST is building a responsible organization centered on major research fields and promoting growth as a community research institute that can conduct world-class research independently in a horizontal structure. We conduct research on Consensus protocol, Trust Contract, Privacy Technology and Public Financing which are the main parts of Boscoin platform based on Blockchain. Our new office is located at Daejeon, and will be opened in June, 2018. We begin recruiting new researcher as a year-round recruitment program. ARIST will be consist of 20 researchers and has been growing larger. We invite you to explore our website to find out what makes ARIST concretely.