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Roi Bar-Zur

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Articles

Aegis: A Decentralized Expansion Blockchain

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By Roi Bar-Zur, Nimrod Cohen, Ittay Eyal, Omer Ben-Porat
| arXiv
arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.
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LedgerHedger: Gas Reservation for Smart-Contract Security

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By Alex Manuskin, Roi Bar-Zur, Ittay Eyal, Itay Tsabary
| eprint.iacr.org
Paper 2022/056 , Technion – Israel Institute of Technology , Technion – Israel Institute of Technology , Technion – Israel Institute of Technology In smart contract blockchain platforms such as Ethereum, users interact with the system by issuing transactions. System operators called miners or validators add those transactions to the blockchain. Users attach to each transaction a fee, which is collected by the miner who placed it in the blockchain.
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Deep Bribe: Predicting the Rise of Bribery in Blockchain Mining with Deep RL

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By Roi Bar-Zur, Sharon Vardi, Ittay Eyal, Danielle Dori
| eprint.iacr.org
Paper 2023/472 Deep Bribe: Predicting the Rise of Bribery in Blockchain Mining with Deep RL , Technion – Israel Institute of Technology , Technion – Israel Institute of Technology Abstract Blockchain security relies on incentives to ensure participants, called miners, cooperate and behave as the protocol dictates. Such protocols have a security threshold – a miner whose relative computational power is larger than the threshold can deviate to improve her revenue.
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