91 citations · 212 across the 18 of their papers we have counts for
18 papers
A Secure Sequencer and Data Availability Committee for Rollups (Extended Version)
Margarita Capretto, Martín Ceresa, Antonio Fernández Anta +2
Blockchains face a scalability limitation, partly due to the throughput limitations of consensus protocols, especially when aiming to obtain a high degree of decentralization. Laye…
Is Synthetic Image Augmentation Useful for Imbalanced Classification Problems? Case-Study on the MIDOG2025 Atypical Cell Detection Competition
Leire Benito-Del-Valle, Pedro A. Moreno-Sánchez, Itziar Egusquiza +4
The MIDOG 2025 challenge extends prior work on mitotic figure detection by introducing a new Track 2 on atypical mitosis classification. This task aims to distinguish normal from a…
A Design Framework for operationalizing Trustworthy Artificial Intelligence in Healthcare: Requirements, Tradeoffs and Challenges for its Clinical Adoption
Pedro A. Moreno-Sánchez, Javier Del Ser, Mark van Gils +1
Artificial Intelligence (AI) holds great promise for transforming healthcare, particularly in disease diagnosis, prognosis, and patient care. The increasing availability of digital…
A Decentralized Sequencer and Data Availability Committee for Rollups Using Set Consensus
Margarita Capretto, Martín Ceresa, Antonio Fernández Anta +2
Blockchains face a scalability challenge due to the intrinsic throughput limitations of consensus protocols and the limitation in block sizes due to decentralization. An alternativ…
Lite-PoT: Practical Powers-of-Tau Setup Ceremony
Lucien K. L. Ng, Pedro Moreno-Sanchez, Mohsen Minaei +3
Zero-Knowledge Succinct Non-Interactive Argument of Knowledge (zk-SNARK) schemes have gained significant adoption in privacy-preserving applications, decentralized systems (e.g., b…
DTL: Data Tumbling Layer. A Composable Unlinkability for Smart Contracts
Mohsen Minaei, Pedro Moreno-Sanchez, Zhiyong Fang +5
We propose Data Tumbling Layer (DTL), a cryptographic scheme for non-interactive data tumbling. The core concept is to enable users to commit to specific data and subsequently re-u…
Atomic Transfer Graphs: Secure-by-design Protocols for Heterogeneous Blockchain Ecosystems
Stephan Dübler, Federico Badaloni, Pedro Moreno-Sanchez +1
The heterogeneity of the blockchain landscape has motivated the design of blockchain protocols tailored to specific blockchains and applications that, hence, require custom securit…
BitMLx: Secure Cross-chain Smart Contracts For Bitcoin-style Cryptocurrencies
Federico Badaloni, Sebastian Holler, Chrysoula Oikonomou +2
A smart contract is an interactive program that governs funds in the realm of a single cryptocurrency. Yet, the many existing cryptocurrencies have spurred the design of cross-chai…
Fast and Secure Decentralized Optimistic Rollups Using Setchain
Margarita Capretto, Martín Ceresa, Antonio Fernández Anta +2
Modern blockchains face a scalability challenge due to the intrinsic throughput limitations of consensus protocols. Layer 2 optimistic rollups (L2) are a faster alternative that of…
Watch Your Back: Identifying Cybercrime Financial Relationships in Bitcoin through Back-and-Forth Exploration
Gibran Gomez, Pedro Moreno-Sanchez, Juan Caballero
Cybercriminals often leverage Bitcoin for their illicit activities. In this work, we propose back-and-forth exploration, a novel automated Bitcoin transaction tracing technique to…
Adoption and Actual Privacy of Decentralized CoinJoin Implementations in Bitcoin
Rainer Stütz, Johann Stockinger, Bernhard Haslhofer +2
We present a first measurement study on the adoption and actual privacy of two popular decentralized CoinJoin implementations, Wasabi and Samourai, in the broader Bitcoin ecosystem…
Improvement of a Prediction Model for Heart Failure Survival through Explainable Artificial Intelligence
Pedro A. Moreno-Sanchez
Cardiovascular diseases and their associated disorder of heart failure are one of the major death causes globally, being a priority for doctors to detect and predict its onset and…
Development and evaluation of an Explainable Prediction Model for Chronic Kidney Disease Patients based on Ensemble Trees
Pedro A. Moreno-Sanchez
Chronic Kidney Disease (CKD), where delayed recognition implies premature mortality, is currently experiencing a globally increasing incidence and high cost to health systems. Data…
Optimizing Virtual Payment Channel Establishment in the Face of On-Path Adversaries
Lukas Aumayr, Esra Ceylan, Yannik Kopyciok +4
Payment channel networks (PCNs) are among the most promising solutions to the scalability issues in permissionless blockchains, by allowing parties to pay each other off-chain thro…
Cross-Layer Deanonymization Methods in the Lightning Protocol
Matteo Romiti, Friedhelm Victor, Pedro Moreno-Sanchez +3
Bitcoin (BTC) pseudonyms (layer 1) can effectively be deanonymized using heuristic clustering techniques. However, while performing transactions off-chain (layer 2) in the Lightnin…
Concurrency and Privacy with Payment-Channel Networks
Giulio Malavolta, Pedro Moreno-Sanchez, Aniket Kate +2
Permissionless blockchains protocols such as Bitcoin are inherently limited in transaction throughput and latency. Current efforts to address this key issue focus on off-chain paym…
Settling Payments Fast and Private: Efficient Decentralized Routing for Path-Based Transactions
Stefanie Roos, Pedro Moreno-Sanchez, Aniket Kate +1
Path-based transaction (PBT) networks, which settle payments from one user to another via a path of intermediaries, are a growing area of research. They overcome the scalability an…
Mind Your Credit: Assessing the Health of the Ripple Credit Network
Pedro Moreno-Sanchez, Navin Modi, Raghuvir Songhela +2
The Ripple credit network has emerged as a payment backbone with key advantages for financial institutions and the remittance industry. Its path-based IOweYou (IOU) settlements acr…