Chain of custody receipt

Source #44029

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 — Bernard L. Madoff Investment Securities (2011-04-04)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Bernard%20L.%20Madoff%20Investment%20Securities%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2011-04-04
EntityBernard L. Madoff Investment Securities
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:05:26.323Z UTC
SHA-256637c7b9d8a25ef35414fe07e8bddee2b376d24eb44801b209e72cf0d9f2fc837
Content length574 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001405858"
  ],
  "period_ending": "2010-12-31",
  "file_num": [
    "000-52762"
  ],
  "display_names": [
    "Abtech Holdings, Inc.  (CIK 0001405858)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2011-04-04",
  "biz_states": [
    "A6"
  ],
  "sics": [
    "1090"
  ],
  "form": "10-K",
  "adsh": "0000950123-11-032406",
  "film_num": [
    "11734514"
  ],
  "biz_locations": [
    "Mississauga, A6"
  ],
  "file_type": "10-K",
  "file_description": "FORM 10-K",
  "inc_states": [
    "NV"
  ],
  "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/44029/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/44029/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/44029/receipt.json