Chain of custody receipt

Source #47059

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 — Jonathan Blum (2010-02-19)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Jonathan%20Blum%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2010-02-19
EntityJonathan Blum
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:18:48.919Z UTC
SHA-25654e2eacf3a808594b4decf82769775d0ff0ebd5c0848b40bcf18349c28d8b5d2
Content length698 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001238486",
    "0001060009"
  ],
  "period_ending": "2010-02-17",
  "file_num": [
    "001-14057"
  ],
  "display_names": [
    "BLUM JONATHAN DAVID  (CIK 0001238486)",
    "KINDRED HEALTHCARE, INC  (CIK 0001060009)"
  ],
  "xsl": "xslF345X03",
  "schema_version": "X0303",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2010-02-19",
  "biz_states": [
    "KY"
  ],
  "sics": [
    "8050"
  ],
  "form": "4",
  "adsh": "0001181431-10-010439",
  "film_num": [
    "10618112"
  ],
  "biz_locations": [
    "",
    "Louisville, KY"
  ],
  "file_type": "4",
  "file_description": "FORM 4 FEB 10  RESTRICTED",
  "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/47059/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/47059/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/47059/receipt.json