Chain of custody receipt

Source #47136

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: filing — Matthew McKenna (2016-03-16)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Matthew%20McKenna%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2016-03-16
EntityMatthew McKenna
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:18:48.919Z UTC
SHA-25646bd72241b88010f0c32463b436baf7988e86ace9ab2ffe1ff2750cc7ae2c895
Content length583 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001669472"
  ],
  "period_ending": null,
  "file_num": [
    "021-259404"
  ],
  "display_names": [
    "Thrive Edutainment LLC  (CIK 0001669472)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0707",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2016-03-16",
  "biz_states": [
    "OK"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001669472-16-000002",
  "film_num": [
    "161510020"
  ],
  "biz_locations": [
    "Jenks, OK"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "OK"
  ],
  "items": [
    "04"
  ]
}

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/47136/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/47136/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/47136/receipt.json