Implementing UML Models, Principles of Knowledge Representation and Bitcoin Blockchain Technology to Enhance Transparency of Property Payments and Property Registries and Property Transfers Based in the Brazilian Real Estate Registration System

Objective: This paper proposes a Solution Concept based on Bitcoin Blockchain technology to aid in solving the problem of transparency in the Brazilian Real Estate Registry System by registering Property Payments, Property Registries (Ownership), and Property Transfers on the Bitcoin Blockchain. Methods: This paper develops the Solution Concept using Unified Modeling Language (UML) diagrams, Principles of Knowledge Representation and it uses the Testnet3 and Signet Networks of the Bitcoin Blockchain to implement the Solution Concept using the Bitcoin Core’s full node and wallet, and the Bitcoin Ordinal Software Utility. Results: Through the Solution Concept, it is verified that there would be more certainty and security in the Brazilian Real Estate Registry System when Property Payments are made in bitcoin. Additionally, it is verified that provenance and digital thread of Property Registries would be assured if they were registered on the Bitcoin Blockchain. Lastly, the Bitcoin Blockchain Testnet3 Network also endures the same scalability issues as the Bitcoin Blockchain Mainnet Network, with delayed confirmation times of payment, Property Registry, and Property Transfer transactions. Conclusions: The Bitcoin Blockchain adds transparency to the Brazilian Real Estate Registry System because Property Payments, Property Registry (Ownership), and Property Transfers registered on the Bitcoin Blockchain are public, traceable, and immutable (Bitcoin.org, n.d.-c). Although the Bitcoin Blockchain Network endures with scalability issues, it was verified that this is due to Bitcoin Blockchain’s public network design that prioritizes decentralization and security over scalability within the realm of the Blockchain Trilemma (Nakai et al., 2024, p. 80560).