Chain of custody receipt

Source #47980

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 — Bill Gates (2010-06-28)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Bill%20Gates%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2010-06-28
EntityBill Gates
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:14:36.745Z UTC
SHA-2561a5e49dc5be59eb51db84447b5ad73f51c596903ad580ca5cc19d3094dba7ef1
Content length567 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001482541"
  ],
  "period_ending": null,
  "file_num": [
    "333-164578"
  ],
  "display_names": [
    "Surna Inc.  (CEAD, CEADW)  (CIK 0001482541)"
  ],
  "xsl": null,
  "sequence": 8,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2010-06-28",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "7389"
  ],
  "form": "S-1/A",
  "adsh": "0001002014-10-000465",
  "film_num": [
    "10920092"
  ],
  "biz_locations": [
    "Los Angeles, CA"
  ],
  "file_type": "CORRESP",
  "file_description": null,
  "inc_states": [
    "NV"
  ],
  "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/47980/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/47980/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/47980/receipt.json