Chain of custody receipt

Source #40606

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 — Christopher Cox (2020-06-29)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Christopher%20Cox%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2020-06-29
EntityChristopher Cox
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-2560a5d46fae6c1578cf81dc6795a7eed96bcc94ac7ceedce184b92ffe345fa0eb9
Content length665 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000087802",
    "0001557341"
  ],
  "period_ending": null,
  "file_num": [
    "005-13492"
  ],
  "display_names": [
    "SCIENTIFIC INDUSTRIES INC  (SCND)  (CIK 0000087802)",
    "Cox Christopher T  (CIK 0001557341)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2020-06-29",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "3826"
  ],
  "form": "SC 13D",
  "adsh": "0001654954-20-007122",
  "film_num": [
    "201000728"
  ],
  "biz_locations": [
    "Bohemia, NY",
    ""
  ],
  "file_type": "SC 13D",
  "file_description": "PRIMARY 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/40606/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40606/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40606/receipt.json