Chain of custody receipt

Source #45693

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 — Cowen & Company (2013-10-22)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Cowen%20%26%20Company%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2013-10-22
EntityCowen & Company
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:45:55.076Z UTC
SHA-256f630e9f4cc1cfd15fa5befd2a9a75c11fe64c19bd0c542f80c6757401b70c0da
Content length600 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001583513"
  ],
  "period_ending": null,
  "file_num": [
    "333-191195"
  ],
  "display_names": [
    "Global Defense & National Security Systems, Inc.  (CIK 0001583513)"
  ],
  "xsl": null,
  "sequence": 3,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2013-10-22",
  "biz_states": [
    "DE"
  ],
  "sics": [
    "6770"
  ],
  "form": "S-1/A",
  "adsh": "0001144204-13-056327",
  "film_num": [
    "131164308"
  ],
  "biz_locations": [
    "Wilmington, DE"
  ],
  "file_type": "EX-10.1",
  "file_description": "EXHIBIT 10.1",
  "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/45693/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/45693/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/45693/receipt.json