Chain of custody receipt

Source #70547

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: D — Castelion Corp (2026-08-28)
Original URLhttps://www.sec.gov/Archives/edgar/data/1973707/000197370726000001/0001973707-26-000001-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2026-08-28
EntityCastelion
Captured2026-09-27T19:04:28.214Z UTC
Hash computed at2026-09-27T19:04:28.214Z UTC
SHA-256d04fdc7b93bbcc2b53adf78133a6d3c28f8d316203c1232b76348ef950887066
Content length581 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001973707"
  ],
  "period_ending": null,
  "file_num": [
    "021-595851"
  ],
  "display_names": [
    "Castelion Corp  (CIK 0001973707)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2026-08-28",
  "biz_states": [
    "CA"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001973707-26-000001",
  "film_num": [
    "261341498"
  ],
  "biz_locations": [
    "El Segundo, CA"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "DE"
  ],
  "items": [
    "06B"
  ]
}

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/70547/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/70547/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/70547/receipt.json