CTResearch archive

Pisa · IT

PhD student · University of Pisa

Calogero Turco

I work on self-sovereign identity and trust at the University of Pisa. My research looks at verifiable credentials for people, online services, and IoT devices. I also study on-chain betting platforms such as Polymarket.

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About

Highlights

Recent papers

Browse all 4 publications →

01 / About

Identity, credentials, and trust

Calogero Turco is a PhD student in Computer Science at the University of Pisa, working with the Pisa DLT Laboratory. He studies identity management and trust in systems that use distributed ledgers, with a focus on self-sovereign identity (SSI).

He explores how verifiable credentials can be used on social networks, and how SSI can give online services and Internet of Things devices their own identities. His research also covers on-chain betting platforms such as Polymarket.

He started working with the laboratory before his PhD. Both his bachelor’s and master’s theses were on SSI.

University profile (opens in a new tab)ORCID (opens in a new tab)GitHub (opens in a new tab)LinkedIn (opens in a new tab)

02 / Affiliations

A

University of Pisa

Department of Computer Science · PhD programme, 2024–2027

Department website (opens in a new tab)

B

Pisa DLT Laboratory

Distributed ledgers, peer-to-peer systems, and decentralized identity research.

Laboratory website (opens in a new tab)

03 / Publications

Publications

4 publications

2027Journal article

A Survey Charting Trust Models and Systems in Self-Sovereign Identity

Calogero Turco, Andrea De Salve, Damiano Di Francesco Maesa, Paolo Mori, and Laura Ricci

Computer Science Review, volume 63, article 101048

We review how self-sovereign identity systems define trust and decide which entities and credentials to trust.

  • Trust models
  • Self-sovereign identity
  • Systematic review
Official article (opens in a new tab)
BibTeX
@article{turco2026trust,
  title   = {A Survey Charting Trust Models and Systems in Self-Sovereign Identity},
  author  = {Turco, Calogero and De Salve, Andrea and Di Francesco Maesa, Damiano and Mori, Paolo and Ricci, Laura},
  journal = {Computer Science Review},
  volume  = {63},
  year    = {2027},
  doi     = {10.1016/j.cosrev.2026.101048}
}
2026Conference paper

From Solo Issuing to an Orchestra: Design and Seamless Augmentation of Self-Sovereign Identity for Multi-Signature Verifiable Credentials

Calogero Turco, Andrea De Salve, Paolo Mori, and Laura Ricci

41st ACM/SIGAPP Symposium on Applied Computing (SAC 2026), pp. 503–505

OrchestraBLS lets several organizations jointly sign and issue a single verifiable credential using BLS signatures.

  • BLS signatures
  • Verifiable credentials
  • Multi-signature
ACM record (opens in a new tab)Code (opens in a new tab)
BibTeX
@inproceedings{turco2026orchestra,
  title     = {From Solo Issuing to an Orchestra: Design and Seamless Augmentation of Self-Sovereign Identity for Multi-Signature Verifiable Credentials},
  author    = {Turco, Calogero and De Salve, Andrea and Mori, Paolo and Ricci, Laura},
  booktitle = {Proceedings of the 41st ACM/SIGAPP Symposium on Applied Computing},
  pages     = {503--505},
  year      = {2026},
  doi       = {10.1145/3748522.3779844}
}
2025Conference paper

An Aid to Mitigate Online Misinformation with Self-Sovereign Identity and Artificial Intelligence

Calogero Turco, Andrea De Salve, Damiano Di Francesco Maesa, Paolo Mori, and Laura Ricci

7th IEEE Conference on Blockchain Computing and Applications (BCCA 2025), pp. 169–177

We combine verifiable identity claims with AI to help assess the credibility of content on social networks.

  • Misinformation
  • Artificial intelligence
  • Digital identity
IEEE Xplore (opens in a new tab)
BibTeX
@inproceedings{turco2025misinformation,
  title     = {An Aid to Mitigate Online Misinformation with Self-Sovereign Identity and Artificial Intelligence},
  author    = {Turco, Calogero and De Salve, Andrea and Di Francesco Maesa, Damiano and Mori, Paolo and Ricci, Laura},
  booktitle = {2025 7th Conference on Blockchain Computing and Applications (BCCA)},
  pages     = {169--177},
  year      = {2025},
  doi       = {10.1109/BCCA66705.2025.11229690}
}
2022Conference paper

Self-Sovereign Identity for Privacy-Preserving Shipping Verification System

Andrea De Salve, Andrea Lisi, Paolo Mori, Laura Ricci, and Calogero Turco

5th International Conference on Blockchain Technology and Applications (ICBTA 2022), pp. 147–157

We use SSI and blockchain to verify shipments while protecting customers’ identity information.

  • Supply chain
  • Privacy
  • Blockchain
BibTeX
@inproceedings{desalve2022shipping,
  title     = {Self-Sovereign Identity for Privacy-Preserving Shipping Verification System},
  author    = {De Salve, Andrea and Lisi, Andrea and Mori, Paolo and Ricci, Laura and Turco, Calogero},
  booktitle = {Proceedings of the 2022 5th International Conference on Blockchain Technology and Applications},
  pages     = {147--157},
  year      = {2022},
  doi       = {10.1145/3581971.3581992}
}

04 / Curriculum

Updated

Education and research

  1. PhD in Computer Science

    University of Pisa · Research on self-sovereign identity, trust, blockchain, Internet of Things, and online social networks.

  2. MSc in Computer Science — ICT Solutions Architect

    University of Pisa · 110/110 cum laude. Thesis on assessing the trustworthiness of social content through SSI.

    Assessing the Trustworthiness of Social Content Through Self-Sovereign Identity

    Read master’s thesis (PDF) (opens in a new tab)

  3. BSc in Computer Science

    University of Pisa · Thesis on privacy-preserving delivery with SSI and Hyperledger Indy.

    Privacy-preserving delivery with Self-Sovereign Identity - An implementation with Hyperledger Indy

    Read bachelor’s thesis (PDF) (opens in a new tab)
View full curriculum (PDF) (opens in a new tab)

05 / Contact

Contact me

You can email me about my research, collaborations, or talks.

[email protected]