Chain of custody receipt

Source #41347

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 — Commercial Satellite Communications Office (CSCO) (2025-11-10)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Commercial%20Satellite%20Communications%20Office%20(CSCO)%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2025-11-10
EntityCommercial Satellite Communications Office (CSCO)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-2568dc6c0b5f1e1af4a0913631b256975ae6de3acb6191ea06d46807286396470c2
Content length590 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000023197"
  ],
  "period_ending": "2025-07-31",
  "file_num": [
    "000-07928"
  ],
  "display_names": [
    "COMTECH TELECOMMUNICATIONS CORP /DE/  (CMTL)  (CIK 0000023197)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2025-11-10",
  "biz_states": [
    "AZ"
  ],
  "sics": [
    "3663"
  ],
  "form": "10-K",
  "adsh": "0000023197-25-000080",
  "film_num": [
    "251466650"
  ],
  "biz_locations": [
    "Chandler, AZ"
  ],
  "file_type": "10-K",
  "file_description": "10-K",
  "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/41347/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/41347/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/41347/receipt.json