Chain of custody receipt

Source #12091

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. (2015-02-20)
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 typeweb_search
Date2015-02-20
EntityManTech SRS Technologies Inc.
Captured2026-04-23T06:27:42.958Z UTC
Hash computed at2026-04-23T06:27:42.958Z UTC
SHA-256f1eeecc06e7587defd79e6f1a1c8f78bcadf3a71ab6c0d4eeaefe6c0b15d4cae
Content length11,006 bytes
Content preview (first 800 chars)
{"took":1603,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":18,"relation":"eq"},"max_score":26.717869,"hits":[{"_index":"edgar_file","_id":"0000892537-15-000006:mant12-31x2014ex211.htm","_score":26.717869,"_source":{"ciks":["0000892537"],"period_ending":"2014-12-31","file_num":["000-49604"],"display_names":["MANTECH INTERNATIONAL CORP (CIK 0000892537)"],"xsl":null,"sequence":3,"root_forms":["10-K"],"file_date":"2015-02-20","biz_states":["VA"],"sics":["8741"],"form":"10-K","adsh":"0000892537-15-000006","film_num":["15633881"],"biz_locations":["Fairfax, VA"],"file_type":"EX-21.1","file_description":"EXHIBIT…

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/12091/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/12091/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/12091/receipt.json