It belongs to Physical Health and Longevity, the part of the welfare catalog concerned with survival, avoidable loss of life, and population health over the life course. The exact stored unit is Percentage, the geographic presentation is global, the data publisher is World Bank, and the immutable numerical identity is WDI SH.STA.STNT.ZS#identity. The preliminary catalog candidate 30 is reconciled to the exact official series “Prevalence of stunting, height for age (% of children under 5)” in Percentage. This is a deliberate canonical correction: the database title names what the values actually measure, while the input wording remains in the reconciliation and audit trail. No hidden proxy label, fallback series, or silently substituted denominator remains. For catalog item 30, the provider definition is: Prevalence of stunting is the percentage of children under age 5 whose height for age is more than two standard deviations below the median for the international reference population ages 0-59 months. For children up to two years old height is measured by recumbent length. For older children height is measured by stature while standing. The data are based on the WHO's 2006 Child Growth Standards. That definition controls the denominator, population, reporting instrument, and statistical meaning. This Indicator records an observed outcome; it does not assert why that outcome changed. Welfare assessment for item 30 uses lowerisbetter. Lower observations are treated as better welfare relative to the dated comparative reference. The direction applies to the stored official measure after the disclosed transformation, if any, rather than being inferred from an emotionally positive or negative title. No mathematical transformation is applied before persistence. Keeping title, series identity, unit, scope, transformation, and interpretation together prevents the record from mixing incompatible measurement concepts. The numerical observations for catalog item 30 were retrieved from World Development Indicators (WDI) through https://data360api.worldbank.org/data360/data?DATABASEID=WBWDI&INDICATOR=WBWDISHSTASTNT_ZS&timePeriodFrom=2018&timePeriodTo=2025 (opens in a new tab). The provider landing page is https://data.worldbank.org/indicator/SH.STA.STNT.ZS (opens in a new tab). The research package records the access date, exact dataset and series identifiers, dimension key country=all, unit, provider metadata, transformation, and yearly aggregation label. The bounded Source and Evidence records can therefore reproduce which numbers were used without treating a generic homepage as row-level proof. Measurement provenance for item 30 follows this provider method: The World Bank world aggregate is retained when it exists for a year; otherwise Factrail records a disclosed unweighted mean of reporting economies for the same exact indicator code. The aggregation label on every point distinguishes those two cases. 2018 combines 48 reporting economies; 2019 combines 46 reporting economies; 2020 combines 26 reporting economies; 2021 combines 32 reporting economies; 2022 combines 32 reporting economies; 2023 combines 25 reporting economies; 2024 combines 6 reporting economies. The output keeps full numerical precision through NormalLine, deviation, and interpretation calculations. Display clients may round for readability, but the persisted value is not squeezed into a zero-to-one score and is not rounded before calculation. The item 30 NormalLine starts on 2018-01-01 at 7.95 Percentage. 25th percentile of provider-published reporting-economy observations in the selected series and dimensions. The calculation keeps the source unit, dimensions, and transformation fixed and is a comparative reference rather than an invented statutory target. For zeroisnorm, the value is exactly zero and is never relaxed because non-zero observations are common. For every item 30 point, normallinevalue copies that dated line and deviationfromnormal is stored in raw-unit terms as observation minus NormalLine. Arithmetic sign and welfare sign are separate. A positive raw deviation is adverse for lowerisbetter, favourable for higherisbetter, and adverse above zero for zeroisnorm. The custom governance score retains its provider scale and uses the public methodology explanation rather than title sentiment. The complete retained sequence is 2018: 21.4645833333 Percentage; 2019: 18.352173913 Percentage; 2020: 21.3230769231 Percentage; 2021: 18.984375 Percentage; 2022: 20.91875 Percentage; 2023: 15.808 Percentage; 2024: 27.8833333333 Percentage. The first observation is 21.4645833333 Percentage in 2018 and the latest is 27.8833333333 Percentage in 2024. The absolute change is 6.41875 Percentage, equivalent to 29.9039114821% of the absolute starting level. The minimum observed value is 15.808 Percentage, and the maximum is 27.8833333333 Percentage. For catalog item 30, the latest observation differs from the NormalLine by 19.9333333333 Percentage and is classified as negative under lowerisbetter. That classification is a deterministic comparison, not a causal explanation or editorial verdict. A movement may reflect real change, altered reporting coverage, revised estimates, a changed survey frame, or several of those at once. There are 7 retained item 30 observations in the selected 2018-2025 research window. The retained observations satisfy the minimum temporal rule without interpolation, extrapolation, or forward filling. Missing years are absent observations, not zeroes. The sequence is intentionally irregular when the official source is irregular, because a smooth-looking line created by invented values would be methodologically false. The displayed global item 30 sequence has one consistent numerical identity: WDI SH.STA.STNT.ZS#identity. No second source series is spliced into a gap, no latest value is copied into a missing year, and no country-only observation is relabelled as a World value. If the source later adds or revises an observation, the update must arrive as a new reviewed research package with its own checksum and audit record. A defensible graph edge requires an existing Driver, direction, strength, lag, confidence, and Source/Evidence that supports the mechanism. The outcome series alone cannot establish that causal chain. For item 30, importance weight 0.8500000000000001 is generated by indicator-importance-rubric-v1. Its five committed components are directness 0.85, population reach 0.8, persistence 0.8, effect on human capabilities 0.9, and overlap control 0.85. The formula weights them 0.35, 0.25, 0.20, 0.15, and 0.05, then rounds to the nearest 0.05. The value is deterministic and reproducible; it is not an intuitive score assigned while drafting prose. The 2018-2024 sequence for item 30 is too short for strong causal or structural claims. Cross-economy comparability can be affected by institutional definitions, survey coverage, modelled estimates, missing observations, classification practices, revisions, and unequal statistical capacity. A global aggregate or unweighted reporting-economy mean can also conceal distributional extremes and should not be used as an individual-level estimate. The item 30 NormalLine is a transparent comparative reference, not a claim that every jurisdiction has the same legal target or feasible frontier. The source may revise both historical points and metadata. Any later refresh must preserve the earlier Source, Evidence, checksum, and audit trail; it must not mutate the meaning of an already reviewed series identity.