9th Workshop on Trusted Smart Contracts (WTSC)

In Association with Financial Cryptography 2025

April 18th, 2025

Hotel Shigira Mirage
Miyakojima, Japan



Program Chairs

Massimo Bartoletti University of Cagliari, IT
Andrea Bracciali University of Turin, IT
Contact us




Programme





09:00-09:10 Welcome and Openings
Location: Convention Hall B - chair Andrea Bracciali
09:00-10:30 On security and consensus
1. Revisiting Bitcoin's Merkle Tree Security: Practical Implications and an Attack on Core Chain.
Yogev Bar-On.
2. A quantitative notion of economic security for smart contracts.
Emily Priyadarshini and Massimo Bartoletti.
3. Hollow Victory: How Malicious Proposers Exploit Validator Incentives in Optimistic Rollup Dispute Games
Suhyeon Lee.
4. A Formalization of Signum’s Consensus.
Fausto Spoto.

10:30-11:00 Break
Location: Convention Hall Foyer

11:00-12:30 Impactfull applications
Location: Convention Hall B - chair Massimo Bartoletti
5. Monero’s Decentralized P2P Exchanges: Functionality, Adoption, and Privacy Risks.
Yannik Kopyciok, Friedhelm Victor and Stefan Schmid.
6. Toward a Secure Tokenized Green Credit Management System
Mahmudun Nabi and Reihaneh Safavi-Naini.
7. Parallel Execution Fee Mechanisms
Abdoulaye Ndiaye.
8. SoK: Modelling Data Storage and Availability
Carlo Brunetta and Massimiliano Sala.

12:30–13:30 Lunch
Location: Shinkiro Restaurant

13:30 -15:00 Invited Talk - joint with CoDeFin
Location: Convention Hall A - chair Andrea Bracciali
13:35-15:00 Can smart contracts make real-world assets more valuable?

Abstract. Tokenization has experienced a revival with estimates touting projected value of the global, tokenized real-world asset (RWA) market in trillions of dollars. The future of RWA depends on verification. Indeed, verifiable information mitigates risk, which increases asset value. Put another way, some classes of assets do not yet exist due to excessive overhead or risk for investors. From a more technical point-of-view, this is the TRU story of how I tried to divest from smart contracts and learned to love the ledger. In order to realize the economic value of smart contracts, it actually pays to strip away the economic aspects of this so-called “programmable money.” Join me on a proof-by-example adventure.

Jason Teutsch
Truebit.

15:00-15:30 Break
Location: Convention Hall Foyer

15:30-17:00 Interactive workshop session: Crypto-Agility and PQC migration for Blockchain joint with CoDeFin
Location: Convention Hall A - chair Shin'ichiro Matsuo
As the importance of preparing blockchain infrastructures for the post-quantum era intensifies, discussions on migration strategies toward PQC-resistant systems have become increasingly critical. Building on the momentum of the March 3rd BGIN session—which highlighted the need for resilient migration paths for existing chains ([meeting report])—this closing roundtable at CoDecFin25 will provide a forum to examine key requirements for quantum-resistant blockchains, explore practical transition mechanisms, and deliberate on future directions for standardization. The session will also serve as a natural continuation of the NIST Crypto-Agility Workshop held the previous day ([agenda]), reinforcing the global momentum behind cryptographic agility and PQC adoption.
16:55 - 17:00 One-minute closing

17:30-21:30 Farewell Sunset Cruise
Location: departure from Mirage Bayside lobby


This conference is organized annually by the International Financial Cryptography Association in cooperation with IACR.