The Blockchain & Platform chair was created by the Ecole Polytechnique with the support of Capgemini. It brings together researchers in computer science and economics whose research focus on blockchains and associated technologies.

OUR MISSION

The Blockchain & Platform chair combines academic excellence with business & tech leadership to foster blockchain innovation.

PUBLICATIONS

Principles of Blockchain Systems – Synthesis Lectures on Computer Science

This book is the first to present the state of the art and provide technical focus on the latest advances in the foundations of blockchain systems. It is a collaborative work between specialists in cryptography, distributed systems, formal languages, and economics, and addresses hot topics in blockchains from a theoretical perspective: cryptographic primitives, consensus, formalization of blockchain properties, game theory applied to blockchains, and economical issues.

This book reflects the expertise of the various authors, and is intended to benefit researchers, students, and engineers who seek an understanding of the theoretical foundations of blockchains.

Table of Contents: Preface / Acknowledgments / Cryptographic Tools for Blockchains / A Consensus Taxonomy in the Blockchain Era / The Next 700 Smart Contract Languages / Formalization of Blockchain Properties / Adversarial Cross-Chain Commerce / Strategic Interactions in Blockchain: A Survey of Game-Theoretic Approaches / Bankruptcy Solutions as Reward Functions in Mining Pools / Tokens and ICOs: A Review of the Economic Literature / Editors’ Biographies
  • Author:Andrea Canidio, Stefania Marcassa, Julien Prat, Vincent Danos
  • Publication date: 10/2021
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An Equilibrium Model of the Market for Bitcoin Mining

We propose a model that uses the exchange rate of Bitcoin against the US dollar to predict the computing power of Bitcoin’s network. We show that free entry places an upper bound on mining revenues and explain how it can be identified. Calibrating the model’s parameters allows us to accurately forecast the evolution of the network computing power over time. We find that a significant share of mining rewards was invested in mining equipment and that the seigniorage income of miners was limited.

Julien Prat & Benjamin Walter, Journal of Political Economy, Vol. 129(8), pp. 2415 to 1452
  • Author:Julien Prat, Benjamin Walter
  • Publication date: 10/2021
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Reversible and Composable Financial Contracts (extended abstract)

It is widely believed that financial markets cannot be liquid without centralised processes to manage counterparty risk. We propose an alternative method for liquidity based on reversible and composable contracts run atop a blockchain. Novel instruments for zero-collateral intermediation can be defined.
  • Author:Vincent Danos, Jean Krivine, Julien Prat
  • Publication date: 02/2021
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EVENTS

Chair Event

CBER Forum – Amy Whitaker (NYU)

This webinar features Amy Whitaker (NYU) and will be hosted by David Yermack (NYU Stern). The topic will be « Fractional Equity in Art: Applications of...

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Tokenomics 2021 : November 18-19

Tokenomics is an international forum for theory, design, analysis, implementation and applications of blockchains and smart contracts. The goal of the conference is to bring...

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Chair Event

Call for Papers & Talks – 2nd Workshop on Decentralized Finance (DeFi)

Submission deadline : November 26, 2021 AoE UTC-12 Author notification by : December 17, 2021 23:59 AoE UTC-12 Event : 2022 February 18, 2022 at...

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PROJECTS

We sponsor projects that push the boundaries of DLT and blockchains.

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EDUCATION

We provide a series of courses at the Ecole Polytechnique for students and professionals that wish to foster their understanding of DLT and blockchains.

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TEAM

The Blockchain & Platform chair is directed by Daniel Augot and Julien Prat. It is composed of researchers and Ph.D. students at the Ecole Poytechnique as well as of associate researchers dedicated to these four areas of expertise :

Cryptography
Cryptography
Distributed Algorithms
Formal proof
Formal proof
Incentives & Governance
Incentives & Governance

Meet our Team

NEWSLETTER SIGNUP