{
  "registry": "International Society of Arboriculture credential directory",
  "finding": {
    "claim_type_resolvable": "ISA credential (certification or qualification)",
    "claim_type_not_resolvable": "ISA membership — ISA publishes no public register of members",
    "registry_consulted": "https://certificates.directory.isa-arbor.com/",
    "registry_size": 46690,
    "name_searched": "Eric Petruska",
    "matches_returned": 0,
    "exact_name_matches": 0,
    "credentials_on_exact_matches": [],
    "other_names_returned": [],
    "registry_returned": "no credential record found for this name",
    "checked_at": "2026-10-07T09:03:59.702Z",
    "reproduction": [
      "Open https://certificates.directory.isa-arbor.com/",
      "Search the name in the 'Search by...' field",
      "Or POST to https://api.accredible.com/spotlight/v1/spotlight_directories/797/users/search with {\"page\":1,\"page_size\":20,\"text_search_query\":{\"fields\":[\"name\"],\"value\":\"<name>\"}}"
    ],
    "limits": [
      "This directory lists ISA credential holders. It does not list ISA members, and ISA publishes no public member register.",
      "A credential holder may be absent if their directory profile is not public.",
      "Absence of a credential record is not evidence that a person lacks a credential, and is never evidence of misrepresentation."
    ]
  }
}