# Data provenance — F6-dev-01

All files are observed data from the World Bank World Development Indicators (WDI), retrieved by the task author with curl on 2026-10-30T03:23:28Z. License: World Bank open data, Creative Commons Attribution 4.0 (CC BY 4.0), https://datacatalog.worldbank.org/public-licenses#cc-by

# wb_indicators.csv (2349 rows)

Long table, one row per entity-year, years 2015–2023, built by merging two API responses on (ISO3 code, year):

• NY.GDP.PCAP.PP.KD — GDP per capita, PPP (constant 2021 international $). URL: https://api.worldbank.org/v2/country/all/indicator/NY.GDP.PCAP.PP.KD?format=json&per_page=20000&date=2015:2023 (raw response SHA-256 742e87326d9748e0873cd996d9d4ebdf9464bec10ccd24a97d66b07e651789ec)
• SP.DYN.LE00.IN — Life expectancy at birth, total (years). URL: https://api.worldbank.org/v2/country/all/indicator/SP.DYN.LE00.IN?format=json&per_page=20000&date=2015:2023 (raw response SHA-256 6bb51828124409f555b5089900a507aa62a0a17523ec3608b4b51bb5c6928d04)

Columns: iso3 (ISO-3166 alpha-3 code as returned by the API), name (entity name), year (integer), gdp_pc_ppp (GDP per capita, PPP, constant 2021 international dollars; empty = not reported), life_expectancy (years; empty = not reported). The API endpoint country/all returns every entity in the World Bank database, i.e. countries/economies and regional, income-group and other aggregates. 45 records whose countryiso3code field was empty in the API response (a few income-group aggregates identified only by a 2-letter code) were dropped during preparation; nothing else was altered. SHA-256 of wb_indicators.csv: 6823f02ed4c20fd12a54b8ca4454f85ba333f22337e2a9fc57c3cabccfdbfcd0

# wb_entities.csv (296 rows)

Entity metadata from https://api.worldbank.org/v2/country?format=json&per_page=400 (raw response SHA-256 c9acf3932785191a649cbc04c3056af4cf64a236e5c3b49d49be25ddb0440bce). Columns: iso3, name, region (World Bank region; the value Aggregates marks entities that are regional, income or other groupings rather than countries/economies), income_level, lending_type. SHA-256 of wb_entities.csv: 06af6aec15122fecea5be5eb21464c505188ecc135bc55104a40f20f65040f8d