{
 "title": "Aether Layer: EU VAT number validation (VIES)",
 "site": "台灣 AI 代理人任務中樞",
 "canonical": "https://penguindriver.com/s/com.aether-layer%2Feu-vat-validate",
 "markdown": "https://penguindriver.com/s/com.aether-layer%2Feu-vat-validate.md",
 "summary": "Validates EU VAT numbers: local format/checksum for 27 states + XI, then VIES (cached 24 h).",
 "date_modified": null,
 "retrieved": "2026-11-13",
 "content_sha256": "fc2882af38d9fa4bc78fd2d40ad098b0a3f061d6056d3f8dd5400a5359b3dbb1",
 "fingerprint_basis": "Markdown 版全文，移除贊助行與開頭 front matter，去除頭尾空白",
 "verify": {
  "text_snapshot": "https://penguindriver.com/cite?path=%2Fs%2Fcom.aether-layer%252Feu-vat-validate&format=text",
  "how": "下載 text_snapshot 後計算 SHA-256，應與 content_sha256 相同；內容更新時指紋會改變"
 },
 "sources": [
  {
   "name": "https://aether-layer.com/en/vat-api",
   "url": "https://aether-layer.com/en/vat-api"
  }
 ],
 "source_count": 1,
 "cite_as": {
  "zh": "Aether Layer: EU VAT number validation (VIES)｜台灣 AI 代理人任務中樞。https://penguindriver.com/s/com.aether-layer%2Feu-vat-validate（資料日期 未標示，擷取 2026-11-13）",
  "apa": "台灣 AI 代理人任務中樞. (2026). Aether Layer: EU VAT number validation (VIES). Retrieved 2026-11-13, from https://penguindriver.com/s/com.aether-layer%2Feu-vat-validate",
  "markdown": "[Aether Layer: EU VAT number validation (VIES)](https://penguindriver.com/s/com.aether-layer%2Feu-vat-validate)（台灣 AI 代理人任務中樞，2026-11-13）"
 },
 "license": "可引用，請附上正式網址與資料日期"
}