Chain of custody receipt

Source #70545

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 — Lavrock - Castelion C, LLC (2026-08-25)
Original URLhttps://www.sec.gov/Archives/edgar/data/2148313/000123191926001064/0001231919-26-001064-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2026-08-25
EntityCastelion
Captured2026-09-27T19:04:28.186Z UTC
Hash computed at2026-09-27T19:04:28.186Z UTC
SHA-256a9f97b761db595eef49c8b78f16d414f4f0f8ada8fafe51e9b061047c9610431
Content length755 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0002148313",
    "0002148308"
  ],
  "period_ending": null,
  "file_num": [
    "021-595259",
    "021-595259-01"
  ],
  "display_names": [
    "Lavrock - Castelion C, LLC  (CIK 0002148313)",
    "Lavrock - Castelion C-P, LLC  (CIK 0002148308)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2026-08-25",
  "biz_states": [
    "VA"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001231919-26-001064",
  "film_num": [
    "261313291",
    "261313292"
  ],
  "biz_locations": [
    "Arlington, VA",
    "Arlington, VA"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "DE",
    "DE"
  ],
  "items": [
    "06B",
    "3C",
    "3C.1"
  ]
}

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/70545/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/70545/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/70545/receipt.json