Chain of custody receipt

Source #67311

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 — CATERPILLAR INC (2020-02-19)
Original URLhttps://www.sec.gov/Archives/edgar/data/18230/000001823020000056/0000018230-20-000056-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2020-02-19
EntityCaterpillar Inc
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T03:18:15.934Z UTC
SHA-256bd57d39c420a3c8c4d952e844c007a315ab0a1a0f7f48b6dcd2ccfa25daf3a20
Content length581 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000018230"
  ],
  "period_ending": "2019-12-31",
  "file_num": [
    "001-00768"
  ],
  "display_names": [
    "CATERPILLAR INC  (CAT)  (CIK 0000018230)"
  ],
  "xsl": null,
  "sequence": 5,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2020-02-19",
  "biz_states": [
    "IL"
  ],
  "sics": [
    "3531"
  ],
  "form": "10-K",
  "adsh": "0000018230-20-000056",
  "film_num": [
    "20628709"
  ],
  "biz_locations": [
    "Deerfield, IL"
  ],
  "file_type": "EX-10.19",
  "file_description": "EXHIBIT 10.19",
  "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/67311/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/67311/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/67311/receipt.json