Chain of custody receipt

Source #47633

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 — George Soros (2016-02-16)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22George%20Soros%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2016-02-16
EntityGeorge Soros
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:14:36.745Z UTC
SHA-256a887754bc3221c77995fa8008ad2f0fb0b208a8bf146a00be1f838a996dc03a2
Content length665 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000890264",
    "0001029160"
  ],
  "period_ending": null,
  "file_num": [
    "005-87130"
  ],
  "display_names": [
    "EXA CORP  (CIK 0000890264)",
    "SOROS FUND MANAGEMENT LLC  (CIK 0001029160)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13G"
  ],
  "file_date": "2016-02-16",
  "biz_states": [
    "MA",
    "NY"
  ],
  "sics": [
    "7372"
  ],
  "form": "SC 13G/A",
  "adsh": "0001011438-16-000436",
  "film_num": [
    "161428229"
  ],
  "biz_locations": [
    "Burlington, MA",
    "New York, NY"
  ],
  "file_type": "SC 13G/A",
  "file_description": null,
  "inc_states": [
    "MA",
    "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/47633/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/47633/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/47633/receipt.json