The Substrate Is the Choice: Sovereign-AI Procurement in the United Kingdom in 2026

▤ Summary

This article argues that UK sovereign-AI procurement should focus on the underlying substrate, not just the model. It says buyers need requirements for jurisdiction, key control, offline auditability, tamper-evident records, and exit continuity to avoid lock-in and future rework. The piece positions a signed, hash-chained, offline-verifiable audit trail as the core differentiator between trustworthy AI systems and vendor-controlled black boxes. It also links these requirements to upcoming regulatory pressure from the EU AI Act, post-quantum cryptography, and growing AI liability exposure. The author uses Mickai’s own architecture as an example of how a sovereign AI system can be built and verified.

▦ Linked Companies

Mickai

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