Chain of custody receipt

Source #65122

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: 4/A — York Space Systems Inc. (2026-03-11)
Original URLhttps://www.sec.gov/Archives/edgar/data/2086587/000119312526102697/0001193125-26-102697-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2026-03-11
EntityYork Space Systems
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T02:44:18.056Z UTC
SHA-2568a6a66ddcb1ea80fd193109d84c2588854ccca8d0f69fe18ec8bfc4297e21019
Content length682 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0002100113",
    "0002086587"
  ],
  "period_ending": "2026-01-30",
  "file_num": [
    "001-43088"
  ],
  "display_names": [
    "Wallinger Dirk  (CIK 0002100113)",
    "York Space Systems Inc.  (CIK 0002086587)"
  ],
  "xsl": "xslF345X05",
  "schema_version": "X0508",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2026-03-11",
  "biz_states": [
    "CO"
  ],
  "sics": [
    "3760"
  ],
  "form": "4/A",
  "adsh": "0001193125-26-102697",
  "film_num": [
    "26745143"
  ],
  "biz_locations": [
    "",
    "Greenwood Village, CO"
  ],
  "file_type": "4/A",
  "file_description": "4/A",
  "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/65122/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/65122/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/65122/receipt.json