Chain of custody receipt

Source #40354

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 (2010-09-17)
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
Date2010-09-17
EntityBrian Campbell
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:15:17.880Z UTC
SHA-256963850f95ad595332f3d7eb4775c117429d138f93a3ebd704974e07d845b3af5
Content length613 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001501153"
  ],
  "period_ending": null,
  "file_num": [
    "021-147922"
  ],
  "display_names": [
    "North Austin Veterinary Imaging Affiliates, LLC  (CIK 0001501153)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0704",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2010-09-17",
  "biz_states": [
    "TX"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001501153-10-000001",
  "film_num": [
    "101078143"
  ],
  "biz_locations": [
    "Round Rock, TX"
  ],
  "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/40354/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40354/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40354/receipt.json