Official data.
Deterministic outcomes.
HedgeHouse does not rely on opaque third-party oracles, web-scraped real estate portals, or subjective crowd consensus. All protocol contracts resolve exclusively against official national statistical datasets.
Deterministic Data Normalization Flow
How raw sovereign data transforms into cryptographic resolution
Unified Schema Inspector
Compare raw sovereign payloads against the normalized `HousingObservation` structure
Normalized Schema Transformer
Canonical `HousingObservation` Interface{
"countryCode": "US",
"region": "Miami",
"regionId": "33124",
"provider": "FHFA",
"series": "All-Transactions House Price Index",
"period": "2026-Q2",
"frequency": "quarterly",
"value": 666.21,
"unit": "index_points",
"sourceUrl": "https://www.fhfa.gov/DataTools/Downloads/Documents/HPI/HPI_master.csv",
"retrievedAt": "2026-09-25T11:15:22.000Z"
}Sovereign Statistical Registries
100% real observations fetched through the Phase 0 official provider layer
Federal Housing Finance Agency
The FHFA House Price Index is a comprehensive collection of public-use single-family house price measures. It evaluates home price changes in hundreds of metropolitan areas using repeat sales data from Fannie Mae and Freddie Mac mortgages.
HM Land Registry & ONS
Calculated by the Office for National Statistics (ONS) using complete registered sales records from HM Land Registry, Registers of Scotland, and Land & Property Services Northern Ireland. Hedonic regression methodology standardizes property characteristics.
Urban Redevelopment Authority
The official benchmark for private residential property price movements in the Republic of Singapore. Stratified median price approach covers Core Central Region (CCR), Rest of Central Region (RCR), and Outside Central Region (OCR).
Australian Bureau of Statistics
Australia’s national statistical agency tracks total value and median sale prices of residential dwellings across all Greater Capital City Statistical Areas (GCCSA), powered by complete valuer-general registry inputs.