Chain of custody receipt

Source #41136

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 — Robert J. Katz (2003-09-19)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Robert%20J.%20Katz%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2003-09-19
EntityRobert J. Katz
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-256d4bd7f2609a8bd6cedf9d6a8ea45b0f7607a91bc513f371bc36054597938e78c
Content length631 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000886982"
  ],
  "period_ending": null,
  "file_num": [
    "005-56295"
  ],
  "display_names": [
    "GOLDMAN SACHS GROUP INC/  (GS, GSCE, GS-PA, GS-PC, GS-PD)  (CIK 0000886982)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2003-09-19",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "6211"
  ],
  "form": "SC 13D/A",
  "adsh": "0000950123-03-010537",
  "film_num": [
    "03901778"
  ],
  "biz_locations": [
    "New York, NY"
  ],
  "file_type": "SC 13D/A",
  "file_description": "AMENDMENT NO.44 TO 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/41136/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/41136/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/41136/receipt.json