Kyber · Interlink Bridge · v3.0 — LibreOffice AI + LIAN Governance Bridge + Self-Proving Document 17 Languages · Writer + Calc · Multi-Principal HCB · Async Hash Chain · EU AI Act Art. 14

Kyber · Interlink Bridge v3.0 is the first open-source systemthat implements "Human Oversight" not as a policy checkbox,but as a cryptographic causal chain — structurally, in the document. ────────────────────────────────────────────────────────────WHAT IS KYBER · INTERLINK BRIDGE──────────────────────────────────────────────────────────── Three layers. One architecture. Layer 1 · Interface (Kyber for LibreOffice)  Local AI assistant for LibreOffice Writer and Calc.  17 languages. No cloud. No API keys. GDPR by design.  EU AI Act Article 14 — structurally enforced. Layer 2 · Governance (LIAN · Q1-Q4 · HCB Gate)  Action Taxonomy A/B/C — consequence classification.  Four admission gates (Q1-Q4) — graph-based validation.  Human Commit Boundary — no AI action without human decision.  Multi-Principal signing — Vier-Augen-Prinzip.  Deadlock handling — partial hash chain preserved.  Temporal Fence — commit expiry enforced.  Content Fingerprint — document bound to its commit. Layer 3 · Proof (Self-Proving Document)  SHA-256 chained audit trail — in the document itself.  Async Final Hash — order-independent, deterministic.  Three stamp states: PARTIAL · FINAL · DEADLOCK.  No external server. No cloud. No trust required.  The document is its own witness. ────────────────────────────────────────────────────────────NEW IN v3.0──────────────────────────────────────────────────────────── Kyber · LIAN Bridge (NEW):  · Action Taxonomy A/B/C    Class A: Advisory — AI may respond, no consequence    Class B: Staged — human review required    Class C: Consequence-bearing — HCB Gate mandatory  · Q1-Q4 Admission Engine    Q1: Intent in taxonomy?    Q2: Graph path exists?    Q3: Authority sufficient?    Q4: Scope allowed?  · Multi-Principal HCB (Vier-Augen)    Dual/Triple principal signing    Async commit — order-independent    Deadlock detection and escalation protocol    Partial Hash Chain — each commit individually hashed  · Temporal Fence    Commit expiry (1h · 4h · 24h · 72h · 7d)    Expired commits blocked by Kyber Verify (planned v3.1)  · Content Fingerprint    SHA-256 of document content bound to audit hash    Prevents stamp transfer between documents  · Self-Proving Document    Three visual stamp states (🟡 PARTIAL · 🟢 FINAL · 🔴 DEADLOCK)    Partial stamp available after first commit    Async Final Hash: sha256(sort(committed_hashes) + content_fp + expiry)    ODF Custom Properties (LIAN_RequestID · LIAN_AuditHash · etc.)    Kyber Verify Extension planned (v3.1 · green shield in statusbar)  · FIDO2 / WebAuthn prepared    Hardware anchor for physical commit enforcement (planned v3.1) SourcePilot (NEW):  · Controlled research process  · NO ANSWER WITHOUT SELECTED EVIDENCE  · 6 phases: Auftrag → Retrieval → Evidence Selection              → Lagebild → Re-Dispatch → Commit  · Kyber Handoff in Phase F  · Demo cases: Captain Hook · Templars · Oak Island Kyber for LibreOffice v2.4 (updated):  · 17 languages:    EU West: DE · FR · EN · ES · IT · PT · NL    EU East: PL · CS · RO · HU · UK · RU · TR    Africa/ME: AR · SW (Swahili)    Asia: HI (Hindi)  · Calc mode (NEW):    Explain table · Explain formula · Find errors    Create report · Check budget · Summarize data  · Writer/Calc mode switch in Tab 1  · Configurable backend (LAN server · LM Studio · Jan.ai) Behördenhelfer v2 (updated):  · 7 languages (DE · EN · TR · RO · RU · HU · FR)  · 8 request types  · Print always in German (regardless of UI language)  · Local AI integration (Ollama)  · HCB enforced ────────────────────────────────────────────────────────────ARCHITECTURE──────────────────────────────────────────────────────────── Kyber (LibreOffice · Point of Admission)  ↓ Intent normalization · Action class detectionLIAN Bridge (Admission Engine · Q1–Q4)  ↓ Class A: direct admit · Class B: staged · Class C: HCBHCB Gate (Human Commit · Multi-Principal · Temporal)  ↓ Async partial hashes · Deadlock protocolSelf-Proving Document (SHA-256 · Chained · In Document)  ↓ ODF metadata · Visual stamp · Kyber Verify (v3.1) "Human Oversight not as checkbox but as cryptographic causal chain." ────────────────────────────────────────────────────────────PACKAGE CONTENTS──────────────────────────────────────────────────────────── Kyber_Complete_v30.zip (131KB · 22 files):   kyber_for_libreoffice_v30.py    Main application  Kyber_LibreOffice_v30.oxt       LibreOffice extension  kyber_windows_setup.bat         Windows installer  kyber_starten.sh / .desktop     Linux one-click   lian/kyber_lian_bridge_v1.html  Kyber·LIAN Bridge  sourcepilot/sourcepilot_v2.html SourcePilot  extras/behoerdenhelfer_v2.html  Authority Helper   backend/kyber_backend_v5.py     Full backend · multi-user  backend/kyber_nano.py           NAS/ARM · no pip · WD MyCloud  backend/kyber_server_setup.py   Office LAN server   install/kyber_linux_setup.sh    Full Linux installation  install/kyber_kiosk_setup.sh    Kiosk mode   docs/README_de/en/fr/es/pl/uk/ar/sw.md ────────────────────────────────────────────────────────────DEPLOYMENT SCENARIOS──────────────────────────────────────────────────────────── Single workstation:  python3 kyber_for_libreoffice_v30.py Office / Authority (LAN server):  IT runs Kyber Backend + Ollama on central server  All staff: browser → http://[server]:7332  Model runs once · 4GB RAM per desk is enough  Documents stay on server · nothing leaves the building NAS / ARM (WD MyCloud · Raspberry Pi):  python3 backend/kyber_nano.py  No pip · no Flask · pure Python stdlib Kiosk / Reception:  bash install/kyber_kiosk_setup.sh Governance Demo (LIAN Bridge):  Browser → lian/kyber_lian_bridge_v1.html  No server · no install · single HTML file ────────────────────────────────────────────────────────────EU-SOVEREIGN STACK──────────────────────────────────────────────────────────── Mistral AI (Paris, France) — inference modelCroissantLLM (Paris, France) — French-optimizedLibreOffice (international, open)Kyber · Interlink Bridge (Rendsburg, Germany) No US model as default.No CLOUD Act risk.GDPR Article 25 — Privacy by Design.EU AI Act Article 14 — Human Oversight — Structural.CC BY 4.0 ────────────────────────────────────────────────────────────RELATED IDENTIFIERS──────────────────────────────────────────────────────────── Previous version (v2.4):   10.5281/zenodo.20020268System framework (v2.0):   10.5281/zenodo.19535215Extension listing:         extensions.libreoffice.org/en/extensions/show/99544 ────────────────────────────────────────────────────────────Related Identifiers:──────────────────────────────────────────────────────────── Is new version of:  10.5281/zenodo.20020268Is supplement to:   10.5281/zenodo.19535215