Chain of custody receipt

Source #64978

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: 4 — Marathon Petroleum Corp (2014-01-06)
Original URLhttps://www.sec.gov/Archives/edgar/data/1510295/000120919114001630/0001209191-14-001630-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2014-01-06
EntityMarathon Petroleum
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T02:29:04.426Z UTC
SHA-25630cf87012bdb403401c62c25eaef45fb2cd26f334b8735ab8b7d9aa9de7e6684
Content length692 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001510295",
    "0001520736"
  ],
  "period_ending": "2014-01-02",
  "file_num": [
    "001-35054"
  ],
  "display_names": [
    "Marathon Petroleum Corp  (MPC)  (CIK 0001510295)",
    "Wilder J. Michael  (CIK 0001520736)"
  ],
  "xsl": "xslF345X03",
  "schema_version": "X0306",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2014-01-06",
  "biz_states": [
    "OH"
  ],
  "sics": [
    "2911"
  ],
  "form": "4",
  "adsh": "0001209191-14-001630",
  "film_num": [
    "14509129"
  ],
  "biz_locations": [
    "Findlay, OH",
    ""
  ],
  "file_type": "4",
  "file_description": "FORM 4 SUBMISSION",
  "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/64978/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/64978/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/64978/receipt.json