The workshop will be held in conjunction with the 14th Latin-American Symposium on Dependable and Secure Computing (LADC 2025 – 14th Latin-American Symposium on Dependable and Secure Computing ), in Valparaíso, Chile, October 27-31, 2025. LADC 2025 will be hosted together with CLEI 2025 – the main computer science conference of Latin American community.
LABlock 2025 aims to bring together researchers and practitioners from academia, industry, and government across Latin America to discuss dependable and secure blockchain systems—covering theory, technology, and applications. We focus on robustness, security, privacy, performance, sustainability, and practical deployment of blockchain-based systems in domains such as finance, health, public administration, supply chains, energy, and telecommunications.
Blockchain technologies intersect directly with LADC and CLEI themes: Byzantine fault tolerance and consensus; secure distributed architectures; correctness, testing, and benchmarking of large-scale systems; threat modeling and attack resilience; privacy, compliance, and trustworthy data sharing; and formal/empirical validation of system properties. The workshop will attract both the LADC community, the CLEI community, and adjacent communities in distributed systems, networks, and security, strengthening LADC’s role as the regional hub for trustworthy computing.
Call for papers
We invite submissions of previously unpublished work for presentations or work-in-progress poster presentations. Topics of interest include but are not limited to, the following:
- Distributed algorithms and consensus (BFT; DAG- and proof-based protocols)
- Architectures for public, permissioned, and hybrid blockchains
- Security and privacy (network/application-level attacks, defenses, cryptography, formal methods, Advanced Cryptography (Zero-Knowledge Proofs, Multi-Party Computation), Post-Quantum Security in Blockchains)
- Performance, scalability, throughput/latency trade-offs, and sustainability
- Storage (DLT, distributed storage), interoperability, and system integration
- Cloud/fog/edge + IoT with blockchain; P2P protocols; virtualization
- Experimental validation, simulation, benchmarking, and reproducibility
- Applications: cryptocurrencies, payments, identity, govtech, health, supply chain, telecom (e.g., Open RAN),Decentralized Digital Identity (DID), Asset Tokenization (RWA – Real World Assets), Blockchain for Social Good and Sustainable Development Goals (SDGs)
- Legal, Regulatory, and Governance Aspects (Compliance and Data, Regulation of Digital Assets and Cryptocurrencies, On-Chain and Off-Chain Governance (DAOs)
Submissions in English, Spanish and Portuguese using the ACM SIGCONF template. PDF, single-blind review (author names visible) for one of these formats:
- Regular Research Papers: up to 10 pages (excluding references) — novel results with rigorous evaluation.
- Short Papers / Work-in-Progress: 4–6 pages — early results, negative results, replication, position papers.
- Poster/Demo Extended Abstracts: 2 pages — tools, datasets, testbeds, or deployments.
All papers presented will be published in the SBC Open Library, the open repository of Brazilian Computer Society (SBC).
Submission System. Via the JEMS 3 submission portal at the link https://jems3.sbc.org.br/lablock2025/
Important Dates
Paper submission deadline: 29 August 2025 8 September 2025
Notification of acceptance: 8 September 2025 30 September 2025
Camera-ready paper due: 17 September 2025 07 October 2025
Workshop date: 28-29 October 2025
TPC Chairs
Allan E. S. Freitas (IFBA, Brazil)
Jean E. Martina (UFSC, Brazil)
TPC
Alex Borges Vieira (Universidade Federal de Juiz de Fora)
Allan Edgard Silva Freitas (Instituto Federal da Bahia)
Billy Anderson Pinheiro (Amazônia Blockchain Solutions)
Daniel Sadoc Menasche (Universidade Federal do Rio de Janeiro)
Diogo Menezes Ferrazani Mattos (Universidade Federal Fluminense)
Eder John Scheid (Universidade Federal do Rio Grande do Sul)
Eduardo Alchieri (Universidade de Brasília)
Emanuel Coutinho (Universidade Federal do Ceará)
Fernando Luís Dotti (Pontifícia Universidade Católica do Rio Grande do Sul)
Francisco Sant’anna (Universidade do Estado do Rio de Janeiro)
Frederico Araújo da Silva Lopes (Imd/UFRN)
Gustavo Betarte (Facultad de Ingeniería, Universidad de La República)
Helio C. Guardia (Universidade Federal de São Carlos)
Igor Machado Coelho (Universidade Federal Fluminense)
Jean Martina (Universidade Federal de Santa Catarina)
Jeferson Campos Nobre (Universidade Federal do Rio Grande do Sul)
Leobino Nascimento Sampaio (Universidade Federal da Bahia)
Luiz Fernando Rust da Costa Carmo (Inmetro)
Muriel Figueredo Franco (Universidade Federal de Ciências da Saúde de Porto Alegre)
Nelio Cacho (Universidade Federal do Rio Grande do Norte)
Patricia Prandini (Universidad de Buenos Aires)
Rafael Esteves (Instituto Federal do Rio Grande do Sul)
Roben Castagna Lunardi (Instituto Federal do Rio Grande do Sul)
Rócio Aldeco-pérez (Facultad de Ingenieria Unam)
Rostand Edson Oliveira Costa (Universidade Federal da Paraíba)
Sergio Carvalho (Universidade Federal de Goiás)
Vinicius Cunha m Borges (Federal University Of Goias)
Wilson Melo Jr (National Institute Of Metrology, Quality And Technology)
Contact
allan at ifba.edu.br
jean.martina at ufsc.br