Chain of custody receipt

Source #62713

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 — Marathon Petroleum (2007-03-01)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Marathon%20Petroleum%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2007-03-01
EntityMarathon Petroleum
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T07:23:42.454Z UTC
SHA-256eb5789192fef6f592179c5b2673769eb37ac98283a91085abc242f1ac43eb6b2
Content length579 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000101778"
  ],
  "period_ending": "2006-12-31",
  "file_num": [
    "033-07065"
  ],
  "display_names": [
    "MARATHON OIL CORP  (MRO)  (CIK 0000101778)"
  ],
  "xsl": null,
  "sequence": 8,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2007-03-01",
  "biz_states": [
    "TX"
  ],
  "sics": [
    "2911"
  ],
  "form": "10-K",
  "adsh": "0001047469-07-001533",
  "film_num": [
    "07663624"
  ],
  "biz_locations": [
    "Houston, TX"
  ],
  "file_type": "EX-21.1",
  "file_description": "EXHIBIT 21.1",
  "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/62713/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/62713/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/62713/receipt.json