Chain of custody receipt

Source #45168

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 — Cybersecurity and Infrastructure Security Agency (CISA) (2024-02-09)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Cybersecurity%20and%20Infrastructure%20Security%20Agency%20(CISA)%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2024-02-09
EntityCybersecurity and Infrastructure Security Agency (CISA)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:01:59.649Z UTC
SHA-256db47369e7e931ad40f7c889a9f62f81d4c6809216d7220609e93ebccb5a9eec6
Content length572 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000100885"
  ],
  "period_ending": "2023-12-31",
  "file_num": [
    "001-06075"
  ],
  "display_names": [
    "UNION PACIFIC CORP  (UNP)  (CIK 0000100885)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2024-02-09",
  "biz_states": [
    "NE"
  ],
  "sics": [
    "4011"
  ],
  "form": "10-K",
  "adsh": "0001437749-24-003599",
  "film_num": [
    "24613868"
  ],
  "biz_locations": [
    "Omaha, NE"
  ],
  "file_type": "10-K",
  "file_description": "FORM 10-K",
  "inc_states": [
    "UT"
  ],
  "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/45168/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/45168/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/45168/receipt.json