Chain of custody receipt

Source #826

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 — Rafael Advanced Defense Systems (2013-12-02)
Original URLhttps://www.sec.gov/cgi-bin/browse-edgar?company=Rafael%20Advanced%20Defense%20Systems&CIK=&type=&dateb=&owner=include&count=40&search_text=&action=getcompany
PublicationSEC EDGAR
Source typediscovery_scope_note
Date2013-12-02
EntityRafael Advanced Defense Systems
Captured2026-04-06T03:09:56.295Z UTC
Hash computed at2026-04-06T03:09:56.295Z UTC
SHA-2564bed18a6cc701681a7a0e1384131998d43ed5c54fe296b97fbf4485afb72d152
Content length670 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001126140",
    "0001206713"
  ],
  "period_ending": null,
  "file_num": [
    "005-62155"
  ],
  "display_names": [
    "GIVEN IMAGING LTD  (CIK 0001126140)",
    "DISCOUNT INVESTMENT CORP LTD  (CIK 0001206713)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2013-12-02",
  "biz_states": [
    "L4",
    "L3"
  ],
  "sics": [
    "3841"
  ],
  "form": "SC 13D/A",
  "adsh": "0001178913-13-003470",
  "film_num": [
    "131251094"
  ],
  "biz_locations": [
    "Yoqneam, L4",
    "Tel Aviv, L3"
  ],
  "file_type": "SC 13D/A",
  "file_description": "SC 13D/A",
  "inc_states": [
    "L3"
  ],
  "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/826/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/826/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/826/receipt.json