field,definition,unit
series_id,"Stable vendor, model, and price-component series identifier.",identifier
revision,Ordinal price state within a series.,integer
observed_at,First retained observation timestamp for the state.,ISO 8601 UTC timestamp
amount,Retained price amount.,see currency and unit
source_url,Official source URL.,URL
capture_url,Archived capture URL supporting the observation.,URL
content_sha256,SHA-256 of retained source content.,hex digest
value_hash,Hash of the normalized value state.,hex digest