{
  "node_id": "iab-ads-txt-authorization",
  "title": "IAB Ads.txt (Auth)",
  "domain": "Sales, Marketing & PR",
  "version": "1.1.0",
  "last_updated": "2026-04-09",
  "bluf": "Compliance with the IAB Tech Lab's Ads.txt Specification Version 1.1 is a mandatory control under the Trustworthy Accountability Group's Certified Against Fraud Guidelines. The BIDDA platform enforces strict validation, requiring the file's location exclusively at the domain root path per Uniform Resource Identifier generic syntax. Secure delivery over HTTPS is mandatory, with server responses conforming to a 5000-millisecond timeout threshold, a 100-kilobyte maximum file size, and no more than five sequential redirects. Per IETF RFC 7231, the HTTP Content-Type header must be explicitly 'text/plain', and file contents must utilize UTF-8 encoding. Syntactically, each record requires a minimum of three fields and must not exceed four, while comments initiated by a hash symbol are permitted. Field-level validation enforces a strict relationship boolean, where the relationship field must contain either 'DIRECT' or 'RESELLER'; case-insensitive processing is applied to this field. These declarations are critical for programmatic verification, mapping the publisher ID against the Sellers.json specification and validating cryptographic nodes within the OpenRTB SupplyChain Object to ensure a transparent, fraud-free advertising ecosystem.",
  "paywall": {
    "status": "LOCKED",
    "unlock_cost_usd": "0.01",
    "skyfire_id": "41779894-ece2-4163-9761-b3b1b76e19b0"
  },
  "crosswalks": {
    "_available_keys": [
      "nist_framework",
      "iso_standard",
      "ai_overlay_2026",
      "industry_mapping"
    ],
    "_note": "Full crosswalk values included in vault response"
  },
  "dependencies": [
    "iab-sellers-json-standard",
    "iab-openrtb-standard",
    "iab-tcf-v2-2-consent"
  ],
  "primary_citations_count": 6
}