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ERAWEAVER × QURMMIUS PALIMPSEST · EVIDENCE SCENE MVP

Administration
Building · 1893

QURMMIUS RECONSTRUCTION · REVIEW REQUIRED

Walk the evidence first: 24 primary archival derivatives, an approximate spatial anchor, and a local feature-triangulated reconstruction with its confidence and limitations attached.

Walkable world preview

Enter a browser-based VR session to walk an interpretive reconstruction of the fairgrounds. The photorealistic environment is the primary world view; alignment geometry is hidden by default and can be enabled for spatial review.

EraWeaver desktop previewWebXR starts only from desktop Chrome with SteamVR and the PSVR2 adapter. This panel remains usable as a keyboard preview while the headset path is checked.

Loading the interpretive environment…

Checking immersive VR support…

Disclaimer: This is an AI-assisted, interpretive world reconstruction based on archival photographs and an approximate Qurmmius Palimpsest anchor. It is not an original photograph, exact pixel recovery, or surveyed historical record.

Loading evidence package…

Qurmmius local reconstruction · drop-in ready

The local engine keeps source photos on-device, recovers relative camera geometry where features overlap, and exports a portable PLY plus calibrated multi-view texture handoff. With the local CUDA runtime it can also produce a dense MVS surface mesh. The point-cloud preview renders the checked-in ASCII handoff; a reviewed binary_little_endian 3DGS PLY, .splat, or textured GLB can be routed to the browser-based WebXR viewer. Hotspot positions, inferred depth, and absolute scale remain review-required.

Checking for the local reconstruction export…

Reconstruction report

The report links feature matches, camera-pose attempts, vertex count, dense MVS output, textured-depth output, and the Qurmmius Palimpsest uncertainty handoff. A low confidence score is expected for archival photos captured from different vantage points.

EngineQurmmius local reconstruction v2 · all-pair SIFT
Current candidate24 primary views · 2,099 vertices · 49.7% confidence
Overlap evidence8,920 candidate matches · 2,099 triangulated inliers · 58 successful pairs
Calibrated solveNot recovered for the current batch; prior artifact remains review-only
Dense MVSCurrent batch did not produce a valid fused surface; prior artifact remains comparison-only
PrivacySource photos stay on this machine
GuardrailRelative-scale interpretive reconstruction; curator and rights review required

Photorealistic interpretive reconstruction of the 1893 World's Columbian Exposition Administration Building beside the fair canal — Interpretive render generated from the expanded 24-view archival reference set; source photographs remain unchanged and cited below.

Photorealistic reconstruction

This is the presentation layer EraWeaver generates when enough overlapping photographs are available: a complete, atmospheric scene inferred from the source set, with uncertainty kept visible.

Disclaimer: This image is AI-generated and interpretive. It is not an original 1893 photograph, exact pixel recovery, or surveyed historical record.

More source photographs and better overlap improve architectural consistency. Qurmmius Palimpsest stores this as a derived visual layer, separate from measured or cited evidence.

Run the local reconstruction engine

Start scripts/start-reconstruction-service.ps1, select three or more source photos, and rebuild without sending images to KIRI or any hosted service. This control is enabled only on a local HTTP origin.

Source photographs

Local service status not checked.

Evidence loading…

Each card is a source photograph selected for the same building. Viewpoint roles are descriptive; they are not a completed camera calibration.

Open citation

Qurmmius Palimpsest site anchor41.77959801, −87.5798960788
Jackson Park · source accuracy unpublished

SourcesLOC 1892 exposition map · Chicago Park District site location · City of Chicago GIS point
Historic footprint-to-scene alignment pending

Authenticity guardrailCoordinates mark the present memorial at the reported former building site; the scene remains a relative-scale interpretive proxy, not a surveyed footprint.

Scene contract: scene-manifest.json · palimpsest-layer.geojson · rebuild notes

PHASE 4 · EXPLORATION TOOLS

Explore, compare, and contribute

These tools are local-first MVP features layered on the cited scene. Generated detail, alignment, and user submissions remain review-required.

Time of dayWeather

Phase 4 tools ready. Atmosphere changes mood and lighting only; geometry is unchanged.

Offline download is explicit and optional; it caches the curated scene set for this browser.

QURMMIUS PROOFLAYER · REALITY LEDGER

Show me why

Every scene claim carries its sources, transformations, confidence, uncertainty, and review gates. Open the chain before treating a generated view as history.

Open manifest

ProofLayer is ready. Click Show Me Why to inspect this scene's evidence chain.

PHASE 4+ · FIELD DELIVERY

Location, sources, and sharing

Progressive features for museums, field trips, and researchers. External data remains cited and optional.

Open data API

Only use the distance check if you choose to share location with your browser. It compares your current position to an approximate modern site pin; it is separate from Palimpsest map fitting and does not verify the historic building footprint.

Choose a field feature to begin.