Chain of custody receipt

Source #80592

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 — Nguyen Phuong Dao (2022-11-23)
Original URLhttps://www.sec.gov/Archives/edgar/data/1828972/000120919122058677/0001209191-22-058677-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2022-11-23
EntityDao Nguyen
Captured2026-10-03T00:41:19.054Z UTC
Hash computed at2026-10-03T00:41:19.054Z UTC
SHA-2566942bc1de1736abaf7242b60348815aedd2258840cadd24b5e56de423c4dcead
Content length693 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001886658",
    "0001828972"
  ],
  "period_ending": "2022-11-21",
  "file_num": [
    "001-39877"
  ],
  "display_names": [
    "Nguyen Phuong Dao  (CIK 0001886658)",
    "BuzzFeed, Inc.  (BZFD, BZFDW)  (CIK 0001828972)"
  ],
  "xsl": "xslF345X03",
  "schema_version": "X0306",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2022-11-23",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "4899"
  ],
  "form": "4",
  "adsh": "0001209191-22-058677",
  "film_num": [
    "221416957"
  ],
  "biz_locations": [
    "",
    "New York, NY"
  ],
  "file_type": "4",
  "file_description": "FORM 4 SUBMISSION",
  "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/80592/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80592/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80592/receipt.json