Skip to main content

Research Repository

Advanced Search

SIGNED: Smart cIty diGital twiN vErifiable data framework

Pervez, Zeeshan; Khan, Zaheer; Ghafoor, Abdul; Soomro, Kamran

SIGNED: Smart cIty diGital twiN vErifiable data framework Thumbnail


Zeeshan Pervez

Zaheer Khan
Professor in Computer Science

Abdul Ghafoor

Profile Image

Dr Kamran Soomro
Associate Professor of Artificial Intelligence


Smart city digital twins can provide useful insights by making effective use of multidisciplinary urban data from diverse sources. Whilst these insights provide new information that helps cities in decision making, verifying the authenticity, integrity, traceability and data ownership across various functional units have become critical characteristics to ensure the data is from an authentic and trustworthy source. However, these characteristics are rarely considered in a digital twin ecosystem. In this research we introduce a novel framework, namely, 'SIGNED: Smart cIty diGital twiN vErifiable Data framework' that is designed on the basis of data ownership, selective disclosure and verifiability principles. Using Verifiable Credentials, SIGNED ensures digital twin data are verifiably authentic i.e., it covers provenance, transparency, and reliability through verifiable presentation. A proof of concept is designed and evaluated based on a smart water management use case to demonstrate the effectiveness of SIGNED in securing verifiable exchange of digital twin data across multiple functional units. The proof-of-concept demonstrates that SIGNED successfully allows the exchange of data in a trusted and verifiable manner at negligible performance cost, thus enhancing security and alleviating privacy issues when sharing data between various functional units in a smart city.


Pervez, Z., Khan, Z., Ghafoor, A., & Soomro, K. (2023). SIGNED: Smart cIty diGital twiN vErifiable data framework. IEEE Access, 11, 29430-29446.

Journal Article Type Article
Acceptance Date Mar 13, 2023
Online Publication Date Mar 2, 2023
Publication Date Mar 2, 2023
Deposit Date Mar 20, 2023
Publicly Available Date Apr 3, 2023
Journal IEEE Access
Electronic ISSN 2169-3536
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Peer Reviewed Peer Reviewed
Volume 11
Pages 29430-29446
Keywords Self-verification, ownership, blockchain, smart contracts, Digital twins, Security, Smart cities, Blockchains, Decision making, Stakeholders, Soft sensors
Public URL
Publisher URL


You might also like

Downloadable Citations