Each guide answers the same four questions for its sector: what the evidence problem is, how the four-component model expresses it (with links to worked examples — every example generator-emitted, none hand-written), what a holder keeps under the Evidence Custody Model, and what holder-side verification looks like. The trust model is normative over every claim in every guide; what tamper-evident means, in plain English, is the companion's first section.
Defense contractors
Incurred-cost audits arrive years later. Labor distribution, cost roll-ups, and contract chains as tamper-evident records that don't depend on trusting the system that produced them.
Financial services
Control evidence and valuation provenance for regimes that ask "prove that was the number, then" — with exact-decimal attribution and declared computation methods.
Manufacturing & supply chain
Work-order cost truth, inventory movements, supplier settlement — and the provenance boundary stated honestly instead of overclaimed.
Energy
Decade-scale PPAs settling monthly from metered quantities: term commitments, computed settlements, curtailment attribution, and custody planned on the asset's horizon.