Chain of custody receipt

Source #45426

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 — John P. Jumper (2014-07-02)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22John%20P.%20Jumper%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2014-07-02
EntityJohn P. Jumper
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:01:59.649Z UTC
SHA-256f4163b229bc28cc5f71497260d81d05d0b47a3372f91900757f83a233124ea3d
Content length672 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000789933",
    "0001346943"
  ],
  "period_ending": "2014-07-01",
  "file_num": [
    "001-09172"
  ],
  "display_names": [
    "NACCO INDUSTRIES INC  (NC)  (CIK 0000789933)",
    "Jumper John P  (CIK 0001346943)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "4"
  ],
  "file_date": "2014-07-02",
  "biz_states": [
    "OH"
  ],
  "sics": [
    "3630"
  ],
  "form": "4",
  "adsh": "0001127602-14-022255",
  "film_num": [
    "14955073"
  ],
  "biz_locations": [
    "Cleveland, OH",
    ""
  ],
  "file_type": "EX-24",
  "file_description": "POWER OF ATTORNEY (PUBLIC): 2014 POA",
  "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/45426/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/45426/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/45426/receipt.json