Chain of custody receipt

Source #45933

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 — Defense Counterintelligence and Security Agency (DCSA) (2021-03-09)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Defense%20Counterintelligence%20and%20Security%20Agency%20(DCSA)%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2021-03-09
EntityDefense Counterintelligence and Security Agency (DCSA)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:45:55.076Z UTC
SHA-2562a4b2d6c45bfa2cf1e24df715882c2262a78e1ffb8bdd8f6b3553b501084d4ca
Content length570 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001833756"
  ],
  "period_ending": null,
  "file_num": [
    "333-253583"
  ],
  "display_names": [
    "Leonardo DRS, Inc.  (DRS)  (CIK 0001833756)"
  ],
  "xsl": null,
  "sequence": 7,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2021-03-09",
  "biz_states": [
    "VA"
  ],
  "sics": [
    "3812"
  ],
  "form": "S-1/A",
  "adsh": "0001628280-21-004281",
  "film_num": [
    "21726700"
  ],
  "biz_locations": [
    "Arlington, VA"
  ],
  "file_type": "EX-10.3",
  "file_description": "EX-10.3",
  "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/45933/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/45933/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/45933/receipt.json