Chain of custody receipt

Source #66489

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 — Kapp David Allen (2022-11-28)
Original URLhttps://www.sec.gov/Archives/edgar/data/1158324/000156761922020901/0001567619-22-020901-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2022-11-28
EntityDavid Allen
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T01:14:51.865Z UTC
SHA-2562fad2f6ea8639d5ca1eab2dd0153b1ad726e5f92aaa515a23f62fd1adec929fb
Content length698 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001940074",
    "0001158324"
  ],
  "period_ending": "2022-11-22",
  "file_num": [
    "000-51829"
  ],
  "display_names": [
    "Kapp David Allen  (CIK 0001940074)",
    "COGENT COMMUNICATIONS HOLDINGS, INC.  (CCOI)  (CIK 0001158324)"
  ],
  "xsl": "xslF345X03",
  "schema_version": "X0306",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2022-11-28",
  "biz_states": [
    "DC"
  ],
  "sics": [
    "4899"
  ],
  "form": "4",
  "adsh": "0001567619-22-020901",
  "film_num": [
    "221422541"
  ],
  "biz_locations": [
    "",
    "Washington, DC"
  ],
  "file_type": "4",
  "file_description": "FORM 4",
  "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/66489/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66489/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66489/receipt.json