Blockchain-Enabled Maritime Transportation System Simulator R package MarineChain version 1.1.0 Simulates Blockchain-Enabled Maritime Transportation Systems (BMTS) by integrating asynchronous, great-circle vessel kinematics with decentralised edge-computing consensus layers. The package provides a fully self-contained cyber-range running completely offline, permitting the risk-free injection of spatial and telemetry threat vectors (e.g., geofence breaches, coordinate modification, and node impersonation). It includes an interactive workspace engine built using 'shinydashboard' and 'leaflet' map layers for monitoring vessel states and ledger updates. Implemented consensus structures are modeled on a lightweight Proof-of-Authentication framework optimized for resource-constrained distributed nodes. Software Imports: shiny, shinydashboard, digest, leaflet, plotly Suggests: knitr, rmarkdown, testthat (>= 3.0.0) Isaac Osei <ikemillar65@gmail.com> Comprehensive R Archive Network (CRAN) Isaac Osei [aut, cre], Yamini Alakunta [aut] MIT + file LICENSE (https://CRAN.R-project.org/package=MarineChain/LICENSE) 2026-07-15 application/tgz https://CRAN.R-project.org/package=MarineChain doi:10.32614/CRAN.package.MarineChain