Chain of custody receipt

Source #62577

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: filing — Cornerstone Government Affairs (2025-10-10)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Cornerstone%20Government%20Affairs%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2025-10-10
EntityCornerstone Government Affairs
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T07:22:29.773Z UTC
SHA-25693e2bc61c2c3171aebfebff77bbbf544b1348f44e5c1f29843a969cfa7f850fc
Content length572 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001903508"
  ],
  "period_ending": null,
  "file_num": [
    "333-290834"
  ],
  "display_names": [
    "Public Policy Holding Company, Inc.  (CIK 0001903508)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2025-10-10",
  "biz_states": [
    "DC"
  ],
  "sics": [
    "8742"
  ],
  "form": "S-1",
  "adsh": "0001628280-25-044817",
  "film_num": [
    "251388568"
  ],
  "biz_locations": [
    "Washington, DC"
  ],
  "file_type": "S-1",
  "file_description": "S-1",
  "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/62577/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/62577/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/62577/receipt.json