Seven
Layers
Insight

Digital identity, payments and data exchange are shared capabilities. Regional DPI works only when they are composed around lawful Digital Public Functions with accountable institutions, authoritative records, validation and remedy.

Regional sandbox cooperation is useful, but it is not a legal home. SADC should operate as a coordination layer beneath AU frameworks and alongside AfCFTA where digital trade is engaged.

GovStack building blocks can support reuse, but trust-layer modularity must be more than software assembly. Trust services need legality gates, service contracts, evidence artefacts and inspection hooks before scale.

Wallet ecosystems should not become priced verification tolls. The Trust Utility Doctrine treats business wallets and relying-party acceptance as governed infrastructure for lawful reliance.

Reuse scales safely only when Digital Public Infrastructure, Digital Public Goods, Digital Public Functions and Digital Public Services are governed with distinct ownership, evidence duties and remedy paths.