PUBLIC-RECORD DATA. Real organization name, phone & address from the NCES Common Core of Data (CCD). The contact-name, title, email & web-domain columns are empty disclosed seams — the source does not publish them and they are never fabricated. Scope is the Education (K-12) layer of SLED.
US SLED Contact Directory — Education layer

Reproduce

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REPRODUCE — US SLED Contact Directory

Every number in this delivery can be reproduced from scratch.

Prerequisites

  • Node.js >= 18 (uses built-in fetch; no npm dependencies).
  • Network access to https://educationdata.urban.org (public, key-free).

1. Re-collect the dataset from the public source

cd delivery-package/us-sled-contact-directory
node src/collect.mjs            # latest year (2023); or: node src/collect.mjs --year 2023

This re-fetches all 50 states + DC and rewrites dataset/ + evidence/. Expected console summary: 19453 organizations across 51 jurisdictions, phone coverage: 100%. (Counts can change if NCES republishes the year.)

2. Verify (deterministic, offline)

node verify.mjs

Expected: [verify] PASS: 17/17 checks (100%) and a regenerated verification-report.json + verification-report.md.

3. Re-run the Proof Layer

cd ../..
node tools/forge-proof.mjs --outcome delivery-package/us-sled-contact-directory --verify "node verify.mjs" --report verification-report.json

4. Self-test the checksums

node tools/forge-proof-verify.mjs --outcome delivery-package/us-sled-contact-directory

Spot-check a single record against the live source

Pick any record's sourceUrl (e.g. .../directory/2023/?fips=2 for Alaska) and open it; the lea_name, phone, and address fields match the delivered row for that leaid. Raw responses for Alaska and DC are also saved verbatim under evidence/raw-sample-AK.json and evidence/raw-sample-DC.json.