Executable Supplement for The The Recursive Machinery Instantiation, Ledger Realization, and Operational Closure of RRU-C

This document completes the operator specification of the constraint-first architecture by providing executable instantiation requirements, candidate typing, equivalence structure, parameterization rules, and a fully specified ledger realization protocol. It formalizes how the abstract machinery binds to host domains, how parameters are declared, how candidates are compared and merged, and how runs are reproducibly executed. This supplement defines: * admissible candidate types and representations, * equivalence and duplication resolution, * parameter declaration and normalization, * falsifier construction rules, * minimal executable ledger, * termination trace completeness, * and host-domain binding requirements. The result is a closed executable system: \text{Specification} \rightarrow \text{Instantiation} \rightarrow \text{Execution} \rightarrow \text{Ledger} \rightarrow \text{Verification} ⸻