Automating BIM Change Certification with Blockchain: A Case Study in Residential Building Design

Valdebenito, Reinaldo; Waher, Peter; Forcael, Eric; Martínez, Eder; Orozco, Francisco; Mulchi, Carlos; Francesconi, Caroll

doi:10.22260/ISARC2026/0148

Automating BIM Change Certification with Blockchain: A Case Study in Residential Building Design

Journal

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

Publisher

International Association for Automation and Robotics in Construction (IAARC)

Date Issued

2026-06-22

Author(s)

Valdebenito, Reinaldo

Waher, Peter

Forcael, Eric

Martínez, Eder

Orozco, Francisco

Facultad de Ingeniería - CampGDL

Mulchi, Carlos

Francesconi, Caroll

Type

Other

DOI

10.22260/ISARC2026/0148

URL

https://scripta.up.edu.mx/handle/20.500.12552/13197

Abstract

This paper proposes and evaluates an automated BIM-Blockchain workflow to certify BIM design changes as verifiable digital evidence, aligned with ISO 19650-oriented traceability indicators. First, baseline traceability was assessed through a two-layer checklist (technical and operational) applied to a real residential BIM project developed in Revit®. Then, an end-to-end certification pipeline was implemented, where each relevant modification is exported as validated BIMXML, hashed for integrity, embedded into a BIMRegister-based smart-contract record (LegalLab), digitally signed with a timestamp (NeuroAccess), and immutably registered on a permissioned ledger (NeuroLedger) with tokenized event logs and QR-based third-party verification. Results show that, in a validation limited to one residential BIM model and three representative design changes, the prototype consistently produced complete evidence packages, increasing operational compliance from 20% to 80% and raising the global traceability index from 50% to 80%. Thus, the light-on-chain approach enhances accountability and auditability without storing full BIM models on-chain or disrupting routine BIM/CDE activities. © 2026 International Association on Automation and Robotics in Construction. All Rights Reserved.