Chain of custody receipt

Source #61847

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 — Williams Companies (2015-09-29)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Williams%20Companies%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2015-09-29
EntityWilliams Companies
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T00:28:06.036Z UTC
SHA-256e72f5656363705a1028492a5c207f4ec16a339450fb5c72b02e2e540fc18118a
Content length683 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001483096",
    "0000107263"
  ],
  "period_ending": null,
  "file_num": [
    "005-86017"
  ],
  "display_names": [
    "WILLIAMS PARTNERS L.P.  (CIK 0001483096)",
    "WILLIAMS COMPANIES INC  (WMB)  (CIK 0000107263)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2015-09-29",
  "biz_states": [
    "OK"
  ],
  "sics": [
    "4922",
    "4922"
  ],
  "form": "SC 13D/A",
  "adsh": "0001193125-15-331019",
  "film_num": [
    "151128427"
  ],
  "biz_locations": [
    "Tulsa, OK",
    "Tulsa, OK"
  ],
  "file_type": "SC 13D/A",
  "file_description": "SC 13D/A",
  "inc_states": [
    "DE",
    "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/61847/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61847/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61847/receipt.json