Supplementary files for the publication: Lewis, M., Oksanen, E., Ehrnsten, F., Rantala, H., Tuominen, J. & Hyvönen, E. (forthcoming in 2025). ‘The Impact of Human Decision-making on the Research Value of Archaeological Data’. Journal on Computing and Cultural Heritage. The files include: R code that is meant as an instruction for conducting a spatial point pattern analysis and to compute local averages, in order to demonstrate regional variability in recording practices related to spatial data in the finds records by the Portable Antiquities Scheme in England and Wales (PAS) SHACL shape definition that serves as a demonstration for using SHACL (Shapes Constraint Language) for validating finds records by the Portable Antiquities Scheme in England and Wales (PAS) regarding dates and periods; sample data file, and Dockerfile for loading data into and serving it in Apache Jena Fuseki triplestore/SPARQL endpoint