Buyers see a listing. They do not see the failed inspection two years ago, the code-enforcement case, or the deal that fell through. Knomes is an append-only ledger of what happened to a property, built on public Houston and Harris County data.
Design
- No provenance, no claim. Every event carries its source, and a closed set of seven verification levels says how much to trust it.
- RAW → STAGING → CANONICAL → LEDGER pipeline through pluggable source adapters. Real inputs so far: the HCAD 2026 appraisal roll and Houston’s CKAN code-enforcement feed.
- Identity match ladder — HCAD account ID, then parcel geometry, then normalized address — that routes uncertain matches to human review instead of guessing.
- A resolution engine that only proposes. Candidate resolutions to open findings are surfaced; a person closes them.
Phases 0–3 are complete and running locally with live county data. Cross-module contracts are frozen in plan/CONTRACTS.md so the pieces can be built and tested in isolation.