Chain of custody receipt

Source #74295

Cryptographic attestation that the document below was captured in Goblin House's archive at the timestamp shown, with the hash listed. If the original URL goes dark or its content changes, this receipt remains as evidence of what the public record looked like at capture time.

TitleSEC EDGAR: 13F-HR — AMES NATIONAL CORP (2026-05-12)
Original URLhttps://www.sec.gov/Archives/edgar/data/1132651/000143774926016350/0001437749-26-016350-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2026-05-12
EntityNational Air Transportation Association Political Action Com
Captured2026-09-28T13:27:45.995Z UTC
Hash computed at2026-09-28T13:27:45.995Z UTC
SHA-256bd37cd2546428c330831869a7c40dab711a28a3600f44afa8a04ed0a6661d017
Content length596 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001132651"
  ],
  "period_ending": "2026-03-31",
  "file_num": [
    "028-25350"
  ],
  "display_names": [
    "AMES NATIONAL CORP  (ATLO)  (CIK 0001132651)"
  ],
  "xsl": "xslForm13F_X02",
  "sequence": "2",
  "root_forms": [
    "13F-HR"
  ],
  "file_date": "2026-05-12",
  "biz_states": [
    "IA"
  ],
  "sics": [
    "6021"
  ],
  "form": "13F-HR",
  "adsh": "0001437749-26-016350",
  "film_num": [
    "26967493"
  ],
  "biz_locations": [
    "Ames, IA"
  ],
  "file_type": "INFORMATION TABLE",
  "file_description": null,
  "inc_states": [
    "X1"
  ],
  "items": []
}

Verifying this receipt

The hash above was computed as:

sha256( coalesce(url, '<no-url>') || '\n' || raw_content )

Anyone with a copy of the original document can verify the match:

  1. Take the URL field and the original document content.
  2. Concatenate url + '\n' + content and SHA-256 it.
  3. Compare to the SHA-256 row above.

Or POST the candidate content to /source/74295/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/74295/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/74295/receipt.json