Chain of custody receipt

Source #42789

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 — White House Historical Association (2007-12-14)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22White%20House%20Historical%20Association%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2007-12-14
EntityWhite House Historical Association
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:08:53.614Z UTC
SHA-2566f66379d0d55c09a16b467ada797072d3550740cbb686f4491eafa64893ab39c
Content length580 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000889156"
  ],
  "period_ending": "2007-09-30",
  "file_num": [
    "333-02302"
  ],
  "display_names": [
    "ALLBRITTON COMMUNICATIONS CO  (CIK 0000889156)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2007-12-14",
  "biz_states": [
    "VA"
  ],
  "sics": [
    "4833"
  ],
  "form": "10-K",
  "adsh": "0000889156-07-000010",
  "film_num": [
    "071308078"
  ],
  "biz_locations": [
    "Arlington, VA"
  ],
  "file_type": "10-K",
  "file_description": "FORM 10-K",
  "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/42789/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/42789/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/42789/receipt.json