Chain of custody receipt

Source #46567

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 — Space Systems Command (2013-02-28)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Space%20Systems%20Command%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2013-02-28
EntitySpace Systems Command
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:45:55.076Z UTC
SHA-2568bdcb1b26a1b9e406a59a78b1dcc38053d484b07593399d771f42b66f6cf6e10
Content length577 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000936468"
  ],
  "period_ending": "2012-12-31",
  "file_num": [
    "001-11437"
  ],
  "display_names": [
    "LOCKHEED MARTIN CORP  (LMT)  (CIK 0000936468)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2013-02-28",
  "biz_states": [
    "MD"
  ],
  "sics": [
    "3760"
  ],
  "form": "10-K",
  "adsh": "0001193125-13-082873",
  "film_num": [
    "13650186"
  ],
  "biz_locations": [
    "Bethesda, MD"
  ],
  "file_type": "10-K",
  "file_description": "FORM 10-K",
  "inc_states": [
    "MD"
  ],
  "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/46567/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/46567/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/46567/receipt.json