Operationalizing the EU AI Act through eIDAS Trust Services Primitives: A Reference Mapping for High-Risk AI Systems

Version 1.1-preprint update. v1.1 strengthens §3.6 (crypto agility and post-quantum readiness) with the European Commission PQC coordinated-roadmap Recommendation and Estonia's April 2026 ROAD2PQ national migration roadmap. The revision frames CADI/CBOM and crypto-agile architecture as emerging public-sector procurement requirements for long-lived AI Act evidence stacks, while preserving the paper's article-by-article mapping and worked-example structure. An editorial pass on 2026-05-23 applied targeted hand-authored insertions across the abstract, §1.1, §2, §3.6, and the article-by-article mapping in §4. The insertions sharpen the procurement-side framing ("ask for the CBOM, the key-history plan, and the…