Chain of custody receipt

Source #40325

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 — Wellington Management Company LLP (2018-09-14)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Wellington%20Management%20Company%20LLP%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2018-09-14
EntityWellington Management Company LLP
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:15:17.880Z UTC
SHA-256fe81f5c434246281f3f5016eb0f3847dcda5625a490dbf14441ee953c4a32b40
Content length681 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001267238",
    "0001634024"
  ],
  "period_ending": null,
  "file_num": [
    "005-80356"
  ],
  "display_names": [
    "ASSURANT INC  (AIZ, AIZN)  (CIK 0001267238)",
    "TPG Advisors VI-AIV, Inc.  (CIK 0001634024)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2018-09-14",
  "biz_states": [
    "NY",
    "TX"
  ],
  "sics": [
    "6321"
  ],
  "form": "SC 13D/A",
  "adsh": "0000903423-18-000509",
  "film_num": [
    "181071736"
  ],
  "biz_locations": [
    "New York, NY",
    "Fort Worth, TX"
  ],
  "file_type": "EX-99.6",
  "file_description": null,
  "inc_states": [
    "DE",
    "E9"
  ],
  "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/40325/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40325/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40325/receipt.json