# r3-b1-01

**Claim (as registered):** NAMAMI's dated-fraction (share of records with a resolved date, date_precision != 'unknown') stays under 1% in every complete state, and is at least an order of magnitude below every other landed manuscript-catalogue source that exposes date fields at all.

**Proposed mechanism:** This is a harvest-method artifact, not a claim about actual production chronology: NAMAMI's list-page enumeration schema does not parse a date column at all, unlike sources built from richer per-manuscript records.

**Scope:** Source: NAMAMI (India), a state-facetted manuscript-holdings portal (holdings, not origin -- every record is held-by, not produced-by, the state). Training: 11 states with a complete portal walk (~4.22M records: Bihar, Himachal Pradesh, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Odisha, Rajasthan, Tamil Nadu, Uttar Pradesh, West Bengal). Holdout: 9 more states/union territories walked to completion after this claim was fixed (Jammu & Kashmir, Assam, Haryana, Delhi, Manipur, Puducherry, Punjab, Uttarakhand, Jharkhand), each landed as a complete, reconciled count before testing. All data comes from one portal, so survival across states shows stability within this portal's own cataloguing practice, not independently of it.

**Training-side evidence:** All 11 complete states show date_precision='unknown' on exactly 100% of records (0 dated records, 0 exceptions, across ~4.22M rows). Comparator sources' dated fractions: Ktiv 25.14%, SfarData 99.41%, Digital Scriptorium 56.87%, MPO 75.23%, NGMCP 24.88% (the lowest comparator), Fihrist 67.05%, HMML 90.29%, Korea/korcis 58.38% -- i.e. NAMAMI's training-side rate sits more than 2,000x below the lowest comparator.

**Holdout test and outcome:** Tested (with a filter excluding rows touched by a separate detail-enrichment pilot, so that unrelated pilot cannot leak date data into this count) across all nine India holdout states/UTs. No holdout state showed a dated-fraction rising above the training pattern.

**Status:** Survived every tested holdout state.
