Chain of custody receipt

Source #61973

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 — Alliant Energy (2003-10-17)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Alliant%20Energy%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2003-10-17
EntityAlliant Energy
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T02:09:57.311Z UTC
SHA-2568d1924b46f5baf9595819ff5aed02f7dbd3053f3fdb8be007ee8319d2b7318ba
Content length578 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001255474"
  ],
  "period_ending": null,
  "file_num": [
    "333-107341"
  ],
  "display_names": [
    "WHITING PETROLEUM CORP  (CIK 0001255474)"
  ],
  "xsl": null,
  "sequence": 6,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2003-10-17",
  "biz_states": [],
  "sics": [
    "1311"
  ],
  "form": "S-1/A",
  "adsh": "0001193125-03-063553",
  "film_num": [
    "03946407"
  ],
  "biz_locations": [
    ""
  ],
  "file_type": "EX-10.1",
  "file_description": "FORM OF MASTER SEPARATION AGREEMENT",
  "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/61973/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61973/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61973/receipt.json