Chain of custody receipt

Source #70855

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: 10-K — GENERAL MOTORS CORP (2004-03-11)
Original URLhttps://www.sec.gov/Archives/edgar/data/40730/000004073004000048/0000040730-04-000048-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2004-03-11
EntityGeneral Motors
Captured2026-09-28T01:16:15.493Z UTC
Hash computed at2026-09-28T01:16:15.493Z UTC
SHA-256539173bb1d658a4d2bd5cda841629d011862b777b1c5ce89d8773ae7182633f7
Content length601 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000040730"
  ],
  "period_ending": "2003-12-31",
  "file_num": [
    "001-00043"
  ],
  "display_names": [
    "GENERAL MOTORS CORP  (CIK 0000040730)"
  ],
  "xsl": null,
  "sequence": 6,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2004-03-11",
  "biz_states": [
    "MI"
  ],
  "sics": [
    "3711"
  ],
  "form": "10-K",
  "adsh": "0000040730-04-000048",
  "film_num": [
    "04662252"
  ],
  "biz_locations": [
    "Detroit, MI"
  ],
  "file_type": "EX-21",
  "file_description": "EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT",
  "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/70855/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/70855/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/70855/receipt.json