Chain of custody receipt

Source #40355

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 — Brian Campbell (2010-02-12)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Brian%20Campbell%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2010-02-12
EntityBrian Campbell
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:15:17.880Z UTC
SHA-256c90a2e39544caa0f862cf4a21f6e9ff9bde94956543629977090e7d4c916e813
Content length621 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001469327"
  ],
  "period_ending": null,
  "file_num": [
    "021-138710"
  ],
  "display_names": [
    "West Loop Veterinary Imaging Affiliates of Houston, LLC  (CIK 0001469327)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0603",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2010-02-12",
  "biz_states": [
    "LA"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001469327-10-000001",
  "film_num": [
    "10598850"
  ],
  "biz_locations": [
    "New Orleans, LA"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "TX"
  ],
  "items": [
    "06"
  ]
}

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/40355/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40355/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40355/receipt.json