Chain of custody receipt

Source #75712

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: 10-K — IOWA FIRST BANCSHARES CORP (2005-03-17)
Original URLhttps://www.sec.gov/Archives/edgar/data/740155/000074353005000011/0000743530-05-000011-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2005-03-17
EntityIowa Construction Industry PAC/ Associated General Contractors Of Iowa
Captured2026-09-28T16:09:32.884Z UTC
Hash computed at2026-09-28T16:09:32.884Z UTC
SHA-2562415c4c6bf7a9d853ff168cf48d1f168adbea465f1e5d8e1cba3630afbb75dec
Content length571 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000740155"
  ],
  "period_ending": "2004-12-31",
  "file_num": [
    "002-89283"
  ],
  "display_names": [
    "IOWA FIRST BANCSHARES CORP  (CIK 0000740155)"
  ],
  "xsl": null,
  "sequence": 3,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2005-03-17",
  "biz_states": [
    "IA"
  ],
  "sics": [
    "6022"
  ],
  "form": "10-K",
  "adsh": "0000743530-05-000011",
  "film_num": [
    "05688663"
  ],
  "biz_locations": [
    "Muscatine, IA"
  ],
  "file_type": "EX-21",
  "file_description": null,
  "inc_states": [
    "IA"
  ],
  "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/75712/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/75712/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/75712/receipt.json