Chain of custody receipt

Source #40708

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 — ManTech SRS Technologies Inc. (2016-02-19)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22ManTech%20SRS%20Technologies%20Inc.%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2016-02-19
EntityManTech SRS Technologies Inc.
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-2565928a5abccc91d605cf0b035d99e6fea4706613e4d2aa3d3c843a83461a4b0d7
Content length582 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000892537"
  ],
  "period_ending": "2015-12-31",
  "file_num": [
    "000-49604"
  ],
  "display_names": [
    "MANTECH INTERNATIONAL CORP  (CIK 0000892537)"
  ],
  "xsl": null,
  "sequence": 3,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2016-02-19",
  "biz_states": [
    "VA"
  ],
  "sics": [
    "8741"
  ],
  "form": "10-K",
  "adsh": "0000892537-16-000031",
  "film_num": [
    "161440333"
  ],
  "biz_locations": [
    "Fairfax, VA"
  ],
  "file_type": "EX-21.1",
  "file_description": "EXHIBIT 21.1",
  "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/40708/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40708/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40708/receipt.json