Coding protocol: provenance of quantified binding provisions in Trondheim statutory planning instruments

This record documents the study’s coding framework and its amendment history. Earlier versions remain available unchanged so that the development of the protocol can be inspected over time. Version 3 update (September 2026). This version records the final protocol used for the study. Following additional methodological validation and a corpus-wide consistency audit, the protocol was refined and frozen as v1.3. The final framework classifies binding-substantive values as full, partial or undisclosed provenance according to whether the documentary record identifies an antecedent and makes the relationship to the adopted numerical value reconstructable. Version 3 also fixes the final documentary search boundary, first-order provenance definition, treatment of operative annexes, inherited requirements and external standards, and the final independent reliability procedure. Earlier origin-category and proposition-testing fields are retained as part of the methodological history but are not the basis of the final reported provenance results. This is a deposited methodological protocol and amendment record, not a preregistration.