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Blockchain has widely been adopted to design accountable federated learning frameworks; however, the existing frameworks do not scale for distributed model training over multiple independent blockchain networks. For storing the pre-trained…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-04-15 Sarthak Chakraborty , Sandip Chakraborty

POKT Network's decentralized Remote Procedure Call (RPC) infrastructure, surpassing 740 billion requests since launching on MainNet in 2020, is well-positioned to extend into providing AI inference services with minimal design or…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-06-03 Daniel Olshansky , Ramiro Rodriguez Colmeiro , Bowen Li

This paper presents OVer, a framework designed to automatically analyze the behavior of decentralized finance (DeFi) protocols when subjected to a "skewed" oracle input. OVer firstly performs symbolic analysis on the given contract and…

Software Engineering · Computer Science 2024-01-12 Xun Deng , Sidi Mohamed Beillahi , Cyrus Minwalla , Han Du , Andreas Veneris , Fan Long

Ethereum is a distributed blockchain that can execute smart contracts, which inter-communicate and perform transactions automatically. The execution of smart contracts is paid in the form of gas, which is a monetary unit used in the…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-25 Kirk Baird , Seongho Jeong , Yeonsoo Kim , Bernd Burgstaller , Bernhard Scholz

Ethereum 2.0, as the preeminent smart contract blockchain platform, guarantees the precise execution of applications without third-party intervention. At its core, this system leverages the Proof-of-Stake (PoS) consensus mechanism, which…

General Economics · Economics 2025-08-11 Tao Yan , Shengnan Li , Benjamin Kraner , Luyao Zhang , Claudio J. Tessone

On-chain lending has expanded across multiple distributed ledgers as DeFi becomes increasingly multi-chain. This environment introduces novel technical and financial mechanisms, particularly cross-blockchain communication and asset transfer…

Social and Information Networks · Computer Science 2026-05-15 Hasret Ozan Sevim

Decentralized Finance (DeFi) is a rapidly evolving segment of blockchain technology that enables a transformative approach to financial services through Web3 applications. By leveraging smart contracts, DeFi allows developers to build…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-01 Ignat Melnikov , Roman Vlasov , Vladimir Gorgadze , Andrey Seoev , Yury Yanovich

This research introduces the Decentralized Finance (DeFi) TrustBoost Framework, which combines blockchain technology and Explainable AI to address challenges faced by lenders underwriting small business loan applications from low-wealth…

Cryptography and Security · Computer Science 2025-12-02 Swati Sachan , Dale S. Fickett

Decentralized finance (DeFi) is experiencing rapid expansion. However, prevalent code reuse and limited open-source contributions have introduced significant challenges to the blockchain ecosystem, including plagiarism and the propagation…

Cryptography and Security · Computer Science 2025-11-18 Zhuo Chen , Gaoqiang Ji , Yiling He , Lei Wu , Yajin Zhou

Smart contracts power decentralized financial (DeFi) services but are vulnerable to security exploits that can lead to significant financial losses. Existing security measures often fail to adequately protect these contracts due to the…

Cryptography and Security · Computer Science 2026-04-22 Zhiyang Chen , Sidi Mohamed Beillahi , Pasha Barahimi , Cyrus Minwalla , Han Du , Andreas Veneris , Fan Long

Blockchain systems are increasingly targeted by on-chain attacks that exploit contract vulnerabilities to extract value rapidly and stealthily, making systematic analysis and reproduction highly challenging. In practice, reproducing such…

Cryptography and Security · Computer Science 2026-01-26 Xing Su , Hao Wu , Hanzhong Liang , Yunlin Jiang , Yuxi Cheng , Yating Liu , Fengyuan Xu

Machine learning has recently enabled large advances in artificial intelligence, but these results can be highly centralized. The large datasets required are generally proprietary; predictions are often sold on a per-query basis; and…

Artificial Intelligence · Computer Science 2020-09-23 Justin D. Harris

Ethereum's scalability limitations pose significant challenges for the adoption of decentralized applications (dApps). Zero-Knowledge Rollups (ZK Rollups) present a promising solution, bundling transactions off-chain and submitting validity…

Cryptography and Security · Computer Science 2025-06-03 Krzysztof Gogol , Szczepan Gurgul , Faizan Nehal Siddiqui , David Branes , Claudio Tessone

The financial sector's adoption of technology-driven data analysis has enhanced operational efficiency and revenue generation by leveraging personal sensitive data. However, the inherent characteristics of blockchain hinder decentralized…

Cryptography and Security · Computer Science 2023-11-13 Zhuangtong Huang , Jiawei Zhu , Zhongyu Huang , Yixin Xu , Jerome Yen , Ye Wang

This paper presents a multi-contract blockchain framework for inter-provider agreements in 6G networks, emphasizing performance analysis under a realistic Proof-of-Stake (PoS) setting on Ethereum's Sepolia testnet. We begin by quantifying…

Networking and Internet Architecture · Computer Science 2025-04-02 Farhana Javed , Josep Mangues-Bafalluy

Smart contracts are essential to decentralized finance (DeFi) and blockchain ecosystems but are increasingly vulnerable to exploits due to coding errors and complex attack vectors. Traditional static analysis tools and existing…

Cryptography and Security · Computer Science 2025-02-20 Jun Kevin , Pujianto Yugopuspito

While quantitative automation related to trading crypto-assets such as ERC-20 tokens has become relatively commonplace, with services such as 3Commas and Shrimpy offering user-friendly web-driven services for even the average crypto trader,…

Cryptography and Security · Computer Science 2021-09-24 Ceren Kocaoğullar , Arthur Gervais , Benjamin Livshits

The use of blockchains for automated and adversarial trading has become commonplace. However, due to the transparent nature of blockchains, an adversary is able to observe any pending, not-yet-mined transactions, along with their execution…

Cryptography and Security · Computer Science 2024-02-16 Kaihua Qin , Stefanos Chaliasos , Liyi Zhou , Benjamin Livshits , Dawn Song , Arthur Gervais

Decentralized Finance (DeFi) is reshaping traditional finance by enabling direct transactions without intermediaries, creating a rich source of open financial data. Layer 2 (L2) solutions are emerging to enhance the scalability and…

General Economics · Economics 2025-08-11 Nir Chemaya , Lin William Cong , Emma Jorgensen , Dingyue Liu , Luyao Zhang

Currently cryptocurrencies and Decentralized Finance (DeFi), which enable financial services on public blockchains, represents a new growing trend in finance. In contrast to financial markets, ruled by traditional corporations, DeFi is…

Social and Information Networks · Computer Science 2024-01-04 Mar Grande , Florentino Borondo , Javier Borondo