Chain of custody receipt

Source #80650

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: 4 — HUNTER GORDON (2008-10-02)
Original URLhttps://www.sec.gov/Archives/edgar/data/1410172/000118143108055737/0001181431-08-055737-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2008-10-02
EntityHunter Gordon
Captured2026-10-03T00:44:08.600Z UTC
Hash computed at2026-10-03T00:44:08.600Z UTC
SHA-256750b95a8b26e9349c293edd4fd936129ebdf08eaa9ef743c028aeb3f217c11db
Content length670 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001410172",
    "0001186518"
  ],
  "period_ending": "2008-09-30",
  "file_num": [
    "001-33834"
  ],
  "display_names": [
    "Rubicon Technology, Inc.  (RBCN)  (CIK 0001410172)",
    "HUNTER GORDON  (CIK 0001186518)"
  ],
  "xsl": "xslF345X03",
  "schema_version": "X0303",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2008-10-02",
  "biz_states": [
    "IL"
  ],
  "sics": [
    "3674"
  ],
  "form": "4",
  "adsh": "0001181431-08-055737",
  "film_num": [
    "081104447"
  ],
  "biz_locations": [
    "Franklin Park, IL"
  ],
  "file_type": "4",
  "file_description": "FORM 4",
  "inc_states": [
    "DE"
  ],
  "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/80650/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80650/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80650/receipt.json