Chain of custody receipt

Source #40589

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 — WPP (2014-07-28)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22WPP%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2014-07-28
EntityWPP
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:15:17.880Z UTC
SHA-256ed496b2424acdb134559efa1251f2337776ce8e680a15633fe0a2ef9a2219fe3
Content length661 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001557860",
    "0000806968"
  ],
  "period_ending": null,
  "file_num": [
    "005-88251"
  ],
  "display_names": [
    "Globant S.A.  (GLOB)  (CIK 0001557860)",
    "WPP plc  (WPP, WPPGF)  (CIK 0000806968)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2014-07-28",
  "biz_states": [
    "N4",
    "X0"
  ],
  "sics": [
    "7374",
    "7311"
  ],
  "form": "SC 13D",
  "adsh": "0001193125-14-281972",
  "film_num": [
    "14996403"
  ],
  "biz_locations": [
    "N/a, N4",
    "London, X0"
  ],
  "file_type": "EX-1",
  "file_description": "EX-1",
  "inc_states": [
    "U3"
  ],
  "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/40589/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40589/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40589/receipt.json