{
  "schema": "e2m-public-dataset-metadata/v1",
  "id": "source-registry",
  "title": "E2M Source Registry",
  "description": "Source provenance, evidence tier, period, verification date and refresh cadence used across E2M Research.",
  "category": "Source registry",
  "coverage": "Brazil expansion evidence · 2026",
  "publisher": "E2M Research · E2M & Associates",
  "version": "2026.09.25",
  "release_date": "2026-09-25",
  "repository_page": "https://e2massociates.com/research/data-catalog/",
  "source_page": "https://e2massociates.com/research/sourcebook/",
  "snapshot_url": "https://e2massociates.com/datasets/source-registry/2026-09-25/metadata.json",
  "citation": "E2M Research. “E2M Source Registry.” Dataset version 2026.09.25. E2M & Associates, 2026-09-25. https://e2massociates.com/datasets/source-registry/2026-09-25/metadata.json.",
  "reuse_note": "Publicly accessible for inspection and citation. Third-party source material remains subject to the original source terms; E2M grants no rights it does not own.",
  "versioning_policy": "Versioned snapshot paths are release records. Future refreshes should create a new dated version path rather than overwrite this snapshot.",
  "distributions": [
    {
      "format": "JSON",
      "media_type": "application/json",
      "url": "https://e2massociates.com/datasets/source-registry/2026-09-25/e2m-source-registry-2026.json",
      "sha256": "a5c8b3b39924229a2e290e88e0ace44100ae1489daefb92a21fb7fba9d9bca95",
      "bytes": 110051
    }
  ]
}