{
  "schema_version": "2.0.0",
  "source_index_schema_version": "2.0.0",
  "manifest_kind": "heavy_metal_index_evidence_packet",
  "retrieval_timestamp": "2026-10-21T05:02:31.794Z",
  "page": {
    "slug": "sources/hamza2025-heavy-metals-energy-drinks-nigeria",
    "title": "Determination of Some Physicochemical Properties, Heavy Metals and Micronutrients of Some Energy Drinks Available in Nigeria",
    "description": null,
    "page_type": "source",
    "audience": [],
    "canonical_url": "https://heavymetalindex.com/sources/hamza2025-heavy-metals-energy-drinks-nigeria",
    "wiki_doi": null
  },
  "content_pin": {
    "status": "verified_git",
    "reason": null,
    "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": "d96d7d927757b1ed22baa3d2f8a979d3b1219687d6ad686b52aae71cacbdd7e8",
    "content_bytes": 25840,
    "metadata_sha256": "f7c4763ab1a8980a783c10f5bc31fdcec240aa0790a6caf6f38bdb7b7655bc36",
    "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": "c5359e7b98d982a6fbe1d5359e2ceaf3011c0bde42306ebff322014d09ae1fe2",
    "published_body_bytes": 27180,
    "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": "d129d3e70cad714d382c20007e6ee6f5e6f331583944fcd1fed4e0ac8c6052af",
    "markdown_bytes": 28699,
    "git_commit_sha": "69a4aa104d5ff38fde2a5a9fae443a8386aa818a",
    "last_commit_sha": "b0ed5d00762d6b1fe1c2ef7cd7410aa5f8d30f3b",
    "last_commit_date": "2026-10-13",
    "git_remote": "https://github.com/paleofoundation/heavymetalindex",
    "verify_command": "node tools/verify-evidence-packet.mjs --commit 69a4aa104d5ff38fde2a5a9fae443a8386aa818a --slug sources/hamza2025-heavy-metals-energy-drinks-nigeria --sha256 d96d7d927757b1ed22baa3d2f8a979d3b1219687d6ad686b52aae71cacbdd7e8 --metadata-sha256 f7c4763ab1a8980a783c10f5bc31fdcec240aa0790a6caf6f38bdb7b7655bc36"
  },
  "contributing_sources": [],
  "data_downloads": [],
  "ingest_contract": {
    "metadata_complete": false,
    "ingest_complete": false,
    "gaps": [
      "evidence_fitness"
    ],
    "completion_note": "Metadata completeness alone does not prove extraction, routing, or primary-source coverage. Completed ingest requires its reconciliation and route audits."
  },
  "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": "The verify_command checks the authored Markdown and semantic frontmatter against the named Git revision using the documented canonical hash scheme. Generated history and reference blocks are excluded from that pin; separate published checksums include them.",
    "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": "2026-10-20T16:43:38.909Z"
}