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 | |