This Week in Blockchain Research Issue #56
|zk Capital||May 13, 2020|
Paper of the Week:
The trustless nature of the blockchain systems means not only that parties may transact without trusting each other, but also that they should not trust each other. This creates a design challenge for interactions which would typically involve such trust.
This paper focuses on blockchain protocols which, at least in part, encode trust by monetary collateral. Here, collateral is value escrowed by a service provider, Alice, to guarantee the user, Bob, that regardless of the behavior of Alice, Bob cannot lose funds.
Payment, cross-chain, and generic computation protocols can be designed such that Bob is guaranteed to receive from Alice at least the amount of funds that are at risk in case she misbehaves.
Protocols involving collateral include cross-chain communication , scalable off-chain payments, state channels, watchtowers, and outsourcing of computation and verification games. However, relying on collateral as trust is itself associated with a set of challenges.
This work is a simple but effective mechanism to lower entry barriers for intermediaries in protocols relying on collateral for secure operation.
Further, it is a subscription mechanism: Instead of locking up a significant amount of funds as collateral, it allows intermediaries to stake future payments (e.g., service fees) with the promise the payments will be disbursed upon the correctly provision of the service.
Affiliations: * Imperial College London.
Summary: A new form of attack that can be carried out on the memory pools (mempools), and mainly targets blockchain-based cryptocurrencies.
Summary: This paper proposes a decentralized open marketplace to facilitate DEAs exchange during system developments among inter-organization stakeholders.
Authors: Jinzhi Lu*, Xiaochen Zheng*, Zhenchao Hu†, Huisheng Zhang†, and Dimitris Kiritsis*
1. Paper Title: Anonymous Lottery In the Proof-of-Stake setting.
Summary: This work focuses on anonymizing the selection function in the Proof-of-Stake setting to provide a formal definition of anonymous selection, and show an instantiation.
Summary: An auditing solution that addresses on-chain privacy and efficiency, from a synergy of homomorphic linear authenticators with polynomial commitments for succinct proofs, and the sigma protocol for provable privacy.
Authors: Yuefeng Du*‡, Huayi Duan*‡, Anxin Zhou*‡, Cong Wang*‡, Man Ho Au†, and Qian Wang§,
3. Paper Title: Collaborative Deanonymization.
Summary: Protocols to resolve the tension between anonymity and accountability in a peer-to-peer manner.
Authors: Patrik Keller*, Martin Florian†, and Rainer Bohme*,
1. Paper Title: A First Look into DeFi Oracles.
Summary: The first study of DeFi oracles.
Affiliations: * Singapore University of Technology and Design.
Summary: A distributed cryptocurrency trading scheme to solve the problem of centralized exchanges, which can achieve trading between different types of cryptocurrencies.
Authors: Hangyu Tian*, Kaiping Xue*, Shaohua Li†, Jie Xu*, Jianqing Liu‡, and Jun Zhao§,
Summary: This paper models blockchain mining as an all-pay auction to design cryptopuzzles that discourage miners to adopt higher computational costs at logit equilibrium (QRE with logit responses) with all miners actively participating.
Authors: Venkata Sriram Siddhardh Nadendla* and Lav R. Varshney†,
Summary: This paper provides the first probabilistic CBC Casper protocol that achieves liveness property against t = ⌊ n−1 ⌋ Byzantine participants in complete asynchronous networks.
Authors: Yongge Wang*,
Affiliations: * UNC Charlotte.
Summary: A novel PoS-based blockchain protocol to achieve security against fully adaptive corruptions without compromising on performance.
Authors: Shoeb Siddiqui* and Sujit Gujar*,
Affiliations: * IIIT Hyderabad.
1. Paper Title: Do Cryptocurrencies Have Fundamental Values?
Summary: This paper studies the role of technological fundamentals in Initial Coin Offering (ICO) successes and valuations.
Authors: Yukun Liu*, Jinfei Sheng†, and Wanyi Wang†,
Summary: This paper analyzes 468 peer-reviewed articles on the topic of smart contracts and their 20,188 references, providing a summary and analysis of the current state of research on smart contracts.
Authors: Lennart Ante*,
Affiliations: * University of Hamburg.
3. Paper Title: Autonomous Business Reality.
Summary: This Article offers the first attempt to document the full range of technology-enabled automation at play among today’s business entities.
Authors: Carla Reyes*
Affiliations: * Michigan State University.
Summary: High latency in cryptocurrency markets implies correlations well below one across exchanges at high frequencies.
Authors: Thomas Dimpfl*† and Dirk G. Baur†,
Conferences & CFPs:
October 21-23 - The second ACM conference on Advances in Financial Technologies (AFT’20) (New York City)
Past Conferences’ Videos:
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