Pierre-Louis Roman

Postdoctoral researcher

Università della Svizzera italiana

I am a postdoctoral researcher in the Computer Systems Institute of USI Lugano, working with Patrick Eugster since 2019-08. I work on distributed systems with a focus on large-scale decentralized systems and public distributed ledgers (e.g., blockchains).

I received a BSc in 2011 and an MSc in 2013 both from Sorbonne Université, and a PhD in 2018 for my work on decentralized systems performed under the supervision of François Taïani and Davide Frey in the WIDE group of Université de Rennes 1/Inria/IRISA. I also spent the summer of 2016 at the Vrije Universiteit Amsterdam working with Spyros Voulgaris on improving Bitcoin.

Interests: distributed ledgers, decentralized systems, distributed algorithms, privacy-enhancing systems.


Main authors are written in bold. Tags: Conference paper, Short paper, Research report, Thesis.

[S2] Dietcoin: Hardening Bitcoin Transaction Verification Process For Mobile Devices
[R1] Dietcoin: shortcutting the Bitcoin verification process for your smartphone
[S1] Bringing secure Bitcoin transactions to your smartphone
[C3] Speed for the elite, consistency for the masses: differentiating eventual consistency in large-scale distributed systems
[C2] Similitude: Decentralised Adaptation in Large-Scale P2P Recommenders
[C1] Towards a Geocentric Mobile Syndication System

Invited talks

Dietcoin: Shortcutting the Bitcoin verification process for your smartphone
Secured light Bitcoin client with Dietcoin and differentiated consistency with GPS
Bringing secure Bitcoin transactions to your smartphone


So far, I have only techsplained in French.

[FR] Un peu de blockchain, beaucoup de registres répartis
[FR] Blockchains, registres répartis, et leur utilité pour le notariat
[FR] Démystifier la blockchain et son utilité pour le notariat


Journal reviewer: IEEE TMC 2020

Conference PC member: IEEE SOCA 2018 (6), IEEE SC2 2018 (4), IEEE DASC 2018 (5), IEEE SOCA 2017 (3), IEEE SC2 2017 (3), IEEE SC2 2016 (6)

External reviewer: WWW 2020 (2), SERIAL@MW 2017 (1), OPODIS 2016 (2), DCC@PODC 2016 (1)


Two classes of 1h45 each on distributed ledgers in the Distributed Systems course at USI, Fall 2019.