Chain of custody receipt

Source #63829

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 — Atlantic Council (2015-04-07)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Atlantic%20Council%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2015-04-07
EntityAtlantic Council
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-27T01:44:49.490Z UTC
SHA-256b9e2fb75b6fb7deea242060e7056a41a4cc40ad458e8fe477f975cc1bd5ac026
Content length676 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001158172",
    "0000806968"
  ],
  "period_ending": null,
  "file_num": [
    "005-83687"
  ],
  "display_names": [
    "COMSCORE, INC.  (SCOR)  (CIK 0001158172)",
    "WPP plc  (WPP, WPPGF)  (CIK 0000806968)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2015-04-07",
  "biz_states": [
    "VA",
    "X0"
  ],
  "sics": [
    "7389",
    "7311"
  ],
  "form": "SC 13D",
  "adsh": "0001193125-15-121156",
  "film_num": [
    "15755877"
  ],
  "biz_locations": [
    "Reston, VA",
    "London, X0"
  ],
  "file_type": "SC 13D",
  "file_description": "SCHEDULE 13D",
  "inc_states": [
    "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/63829/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/63829/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/63829/receipt.json