{
  "schema_version": "2.0.0",
  "source_index_schema_version": "2.0.0",
  "manifest_kind": "heavy_metal_index_evidence_packet",
  "retrieval_timestamp": "2026-10-22T02:44:02.961Z",
  "page": {
    "slug": "testing/atomic-absorption-spectrometry",
    "title": "Atomic absorption spectrometry (AAS)",
    "description": null,
    "page_type": "testing",
    "audience": [
      "researcher",
      "educator",
      "regulator"
    ],
    "canonical_url": "https://heavymetalindex.com/testing/atomic-absorption-spectrometry",
    "wiki_doi": null
  },
  "content_pin": {
    "status": "unpinned",
    "reason": "Authored content or semantic metadata differs from the committed Git tree.",
    "content_hash_scheme": "sha256-utf8-authored-markdown-v2",
    "content_hash_description": "Strip leading YAML; remove only generated hmi-page-history and hmi-page-references marker blocks; trim trailing whitespace and append one LF. Other Markdown bytes are preserved.",
    "content_sha256": "5698a9120b441ae8df01c42f4a4106beea0f7878dd99559da977e6706c313a84",
    "content_bytes": 1875,
    "metadata_sha256": "5f493f33421778e50323a540efecd55d4962770dfc53dd9c074b7dc1ad28c36e",
    "metadata_hash_description": "SHA-256 of recursively key-sorted JSON from parsed YAML, excluding updated and numeric sources (generated display metadata). All other frontmatter fields are included.",
    "published_body_sha256": "5698a9120b441ae8df01c42f4a4106beea0f7878dd99559da977e6706c313a84",
    "published_body_bytes": 1875,
    "published_checksum_note": "Published-body and full-Markdown checksums describe the build input, including generated display sections. They are not claimed to equal the Git revision's display sections.",
    "markdown_sha256": "92375c2f7bba34f3dc0dde2672be62f37180bf9b326b1f80d2eff9cd3670b735",
    "markdown_bytes": 2070,
    "git_commit_sha": null,
    "last_commit_sha": null,
    "last_commit_date": null,
    "git_remote": "https://github.com/paleofoundation/heavymetalindex",
    "verify_command": null
  },
  "contributing_sources": [
    "sources/abdulrasheed2026-nigeria-cookware-metals",
    "sources/chagonda2023-harare-child-blood-lead",
    "sources/deka2023-monitoring-strategies-heavy-metals-chapter",
    "sources/mansour2014-monitoring-health-risk-food-chapter",
    "sources/sun2025-biochar-alginate-cadmium-lettuce",
    "sources/wang2024-biochar-alginate-cadmium-soil",
    "sources/wu2021-edible-salt-soy-sauce-pb-cd"
  ],
  "data_downloads": [],
  "ingest_contract": null,
  "license": {
    "prose": "CC BY 4.0",
    "structured_data": "EU database rights reserved — see https://heavymetalindex.com/licensing",
    "attribution": "Heavy Metal Index (heavymetalindex.com), Institute of Contaminant Standards. Cite canonical_url or wiki_doi.",
    "contact": "karen@paleofoundation.com"
  },
  "attestation": {
    "for_use": "Citation, regulatory submission, or peer-review supplementary record.",
    "verifiable_by": "This manifest reports build-input checksums but has no verified Git pin. It cannot establish that these page bytes correspond to a named Git revision.",
    "not_a_certification": "This manifest records publication provenance. It does not certify products or independently validate the page's scientific claims.",
    "license_terms": "https://heavymetalindex.com/licensing"
  },
  "generated_at": "2026-10-22T01:21:14.841Z"
}