Chain of custody receipt

Source #41433

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 — Office of Inspector General (2008-10-03)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Office%20of%20Inspector%20General%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2008-10-03
EntityOffice of Inspector General
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-256078f49c2ea4092a0eea9d505cf00d6de5d0215d5715b80277d8812c6e6f23821
Content length575 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001434588"
  ],
  "period_ending": null,
  "file_num": [
    "333-150876"
  ],
  "display_names": [
    "Grand Canyon Education, Inc.  (LOPE)  (CIK 0001434588)"
  ],
  "xsl": null,
  "sequence": 8,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2008-10-03",
  "biz_states": [
    "AZ"
  ],
  "sics": [
    "8200"
  ],
  "form": "S-1/A",
  "adsh": "0000950153-08-001708",
  "film_num": [
    "081106266"
  ],
  "biz_locations": [
    "Phoenix, AZ"
  ],
  "file_type": "CORRESP",
  "file_description": null,
  "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/41433/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/41433/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/41433/receipt.json