Chain of custody receipt

Source #70529

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 — BOEING CO (2009-02-09)
Original URLhttps://www.sec.gov/Archives/edgar/data/12927/000119312509022654/0001193125-09-022654-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2009-02-09
EntityBoeing
Captured2026-09-27T18:23:49.179Z UTC
Hash computed at2026-09-27T18:23:49.179Z UTC
SHA-256fb5518671aeadecd6716afbb0a57d7972baa42cb1be8efdbab63fc7eb9d9e7d4
Content length576 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000012927"
  ],
  "period_ending": "2008-12-31",
  "file_num": [
    "001-00442"
  ],
  "display_names": [
    "BOEING CO  (BA)  (CIK 0000012927)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2009-02-09",
  "biz_states": [
    "WA"
  ],
  "sics": [
    "3721"
  ],
  "form": "10-K",
  "adsh": "0001193125-09-022654",
  "film_num": [
    "09582073"
  ],
  "biz_locations": [
    "Seattle, WA"
  ],
  "file_type": "EX-21",
  "file_description": "LIST OF SUBSIDIARIES",
  "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/70529/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/70529/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/70529/receipt.json