20.500.12556/RUL-184031 Leveraging IFC semantics and W3C decentralized identifiers for Digital Building Logbooks in construction and deep renovation Deep renovation and construction projects generate heterogeneous datasets including BIM models, legacy CAD files, sensor logs, inspection records, and regulatory documentation. Current Digital Building Logbooks (DBLs) often remain fragmented across isolated systems, limiting interoperability, traceability, and trust. This paper presents BUILDCHAIN DBL, a decentralized digital logbook architecture that integrates semantic technologies and decentralized identity mechanisms. System’s architecture combines (i) an IFC-aligned ontology that semantically integrates heterogeneous building data into a machine-readable knowledge graph, (ii) a blockchain layer implementing W3C-compliant Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs) to ensure data provenance and tamper-evident auditability, and (iii) an application layer enabling credential management and lifecycle monitoring. The development methodology, system architecture, and workflow processes are described and validated through a real-world case study at the Hospital Real in Granada, Spain. Experimental results show that credential-based workflows execute within interactive latency thresholds ( 300 ms), demonstrating the feasibility of decentralized DBLs for construction and deep-renovation workflows. decentralized building logbook blockchain decentralized identifiers verifiable credentials knowledge base construction and deep renovation workflows decentralizirani gradbeni dnevnik veriga blokov decentralizirani identifikatorji preverljive poverilnice baza znanja delovni tokovi gradnje in globoke prenove true false true Angleški jezik Slovenski jezik Članek v reviji 2026-06-24 10:19:24 2026-06-24 10:19:26 2026-06-25 04:12:13 0000-00-00 00:00:00 2026 0 0 16 str. art. 107065 Vol. 189 Sep. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004:69 0926-5805 10.1016/j.autcon.2026.107065 280119811 RAZ_Kochovski_Petar_2026.pdf RAZ_Kochovski_Petar_2026.pdf 1 06914B11395896D90F1816A20D267C0A 532fd2fa151d517bc374adbf17ea0df98c77d68d2bec2beb0d4eefee389d5a39 96d5ed7f-6fa5-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=236477 https://www.sciencedirect.com/science/article/pii/S0926580526003067?via%3Dihub 1 55722249-6fa5-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=236476 Fakulteta za računalništvo in informatiko 0 0 0