Source Hierarchy & Compliance

Data Source Integrity & Verification Hierarchy

SemioTrace strictly forbids unauthorized scraping of third-party portals (such as Zillow, Redfin, or Realtor.com). All platform recommendations originate from compliant, licensed, and publicly documented record feeds.

Tier 1

Licensed MLS / RESO IDX Listing Feeds

Direct participant data feeds adhering to the Real Estate Standards Organization (RESO) Web API standards. Provides active, pending, and closed status changes.

Verified Feed
Tier 2

County Assessor & Property Appraiser GIS Records

Official municipal registries verifying legal parcel descriptions, historical deeds, assessed valuations, building permits, and annual tax assessments.

Verified Feed
Tier 3

Licensed Foreclosure & Lien Data Feeds

Court clerk dockets tracking Notices of Default, Lis Pendens summons, scheduled trustee sales, and municipal code enforcement liens.

Verified Feed
Tier 4

County Probate Court Estate Dockets

County court records documenting testate/intestate filings, issuance of Letters of Administration, Letters Testamentary, and personal representative authorities.

Verified Feed
Tier 5

Official State & Federal Government Sources

HUD, VA, FEMA flood zone maps, and FHFA mortgage database feeds for assumability guidelines and loan limits.

Verified Feed
Tier 6

Grounded Web Sources for Context Only

Strictly limited to broader macroeconomic news and inflation metrics. Never used for property-level prices or legal claims.

Verified Feed

Mandatory Property Metadata Standard

Every property result surfaced through SemioTrace includes:

  • Identified Primary Data Source & Provider Name
  • Exact Timestamp of Last Verification
  • Listing and Legal Docket Status
  • 0–100 Data Confidence Score
  • Explicit Disclosure of Known Unknowns (Data Gaps)
  • Actionable Professional Verification Steps