Chain of custody receipt

Source #66819

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 — Leveton Jay (2026-03-05)
Original URLhttps://www.sec.gov/Archives/edgar/data/876883/000110465926024248/0001104659-26-024248-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2026-03-05
EntityJay Leveton
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T01:41:42.671Z UTC
SHA-256ad06df585123e3504f83b1b7a064da099daca1a416927b3192a4c482942a8642
Content length670 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001876913",
    "0000876883"
  ],
  "period_ending": "2026-03-03",
  "file_num": [
    "001-13718"
  ],
  "display_names": [
    "Leveton Jay  (CIK 0001876913)",
    "Stagwell Inc  (CIK 0000876883)"
  ],
  "xsl": "xslF345X05",
  "schema_version": "X0508",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2026-03-05",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "7311"
  ],
  "form": "4",
  "adsh": "0001104659-26-024248",
  "film_num": [
    "26727880"
  ],
  "biz_locations": [
    "",
    "New York, NY"
  ],
  "file_type": "4",
  "file_description": "OWNERSHIP DOCUMENT",
  "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/66819/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66819/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66819/receipt.json