Chain of custody receipt

Source #43654

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 — L-3 Services (2011-08-02)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22L-3%20Services%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2011-08-02
EntityL-3 Services
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:05:26.323Z UTC
SHA-25635a854419a1084f320f3779df1300f69c9b7aeffb1ba0b7daf1d8234a9de52e2
Content length699 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001431205",
    "0001056239"
  ],
  "period_ending": "2011-07-29",
  "file_num": [
    "001-14141"
  ],
  "display_names": [
    "Kantor Steven  (CIK 0001431205)",
    "L 3 COMMUNICATIONS HOLDINGS INC  (CIK 0001056239)"
  ],
  "xsl": "xslF345X03",
  "schema_version": "X0304",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2011-08-02",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "3663"
  ],
  "form": "4",
  "adsh": "0001209191-11-042140",
  "film_num": [
    "111004935"
  ],
  "biz_locations": [
    "",
    "New York, NY"
  ],
  "file_type": "4",
  "file_description": "MAIN DOCUMENT DESCRIPTION",
  "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/43654/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/43654/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/43654/receipt.json