LAL Site SPXI Implementation Report (Phase 1.2)

The LAL Site SPXI Implementation Report documents the Phase 1.2 deployment of SPXI on the Living Architecture Lab website.

The tested entities are:

• the Living Architecture Lab;
• Alice Thornburgh as founder and named position.

Eleven protocol items are reported as passing:

• crawlability;
• canonical URLs;
• DOI/ORCID structured data;
• visible Q/A surfaces;
• collision disambiguation;
• Tier 2 canonical summaries in raw HTML;
• Tier 3 compression kernels;
• Holographic Kernels;
• Provenance Chain;
• deployed Semantic Integrity Markers;
• cross-surface inscription alignment.

The twelfth item—measured retrieval performance and its 30-day re-test—is deferred.

The implementation uses a Three-Layer Tether Architecture:

1. intrinsic kernel and canonical definition; 2. extrinsic provenance and identifier chain; 3. persistent external anchor.

The self-test requires the implementation to state schema types, recite the kernel, name collision neighbors, cite identifiers, report γ subscores, and generate the Holographic Kernel. Five of six are reported as complete; the score awaits empirical probing.

The Drowning Test starter kit specifies five prompts across at least three retrieval systems and scores:

• S — scope overlap;
• P — provenance fidelity;
• D — consensus deviation.

The report expected a near-zero initial baseline because the new entity might be absent or merged with older institutions using the same name. That expectation is part of the April 2026 test plan, not a current retrieval result.

A maintenance schedule covers monthly SIM and provenance checks, quarterly full tests, content-update repairs, new-DOI updates, model-update probes, and collision expansion.