Chain of custody receipt

Source #63990

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 — U.S. Department of Defense (2011-04-15)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22U.S.%20Department%20of%20Defense%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2011-04-15
EntityUS Department of Defense (Pentagon)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-27T01:47:04.691Z UTC
SHA-25665ca9cf7dce9c048e3185a9b5785f2e70fab25d4cfd752e8287ab72486bd5f73
Content length573 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001260996"
  ],
  "period_ending": "2010-12-31",
  "file_num": [
    "001-33888"
  ],
  "display_names": [
    "AMERICAN DEFENSE SYSTEMS INC  (CIK 0001260996)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2011-04-15",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "3790"
  ],
  "form": "10-K",
  "adsh": "0001144204-11-022518",
  "film_num": [
    "11763348"
  ],
  "biz_locations": [
    "Hicksville, NY"
  ],
  "file_type": "10-K",
  "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/63990/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/63990/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/63990/receipt.json