Chain of custody receipt

Source #66202

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 (2006-02-28)
Original URLhttps://www.sec.gov/Archives/edgar/data/12927/000119312506040952/0001193125-06-040952-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2006-02-28
EntityBoeing
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T00:40:48.109Z UTC
SHA-256425ad3583b31c4f8dbf474790db8872f4ce5528e8b0750aca03b6de0db6dd152
Content length584 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000012927"
  ],
  "period_ending": "2005-12-31",
  "file_num": [
    "001-00442"
  ],
  "display_names": [
    "BOEING CO  (BA)  (CIK 0000012927)"
  ],
  "xsl": null,
  "sequence": 6,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2006-02-28",
  "biz_states": [
    "WA"
  ],
  "sics": [
    "3721"
  ],
  "form": "10-K",
  "adsh": "0001193125-06-040952",
  "film_num": [
    "06649730"
  ],
  "biz_locations": [
    "Seattle, WA"
  ],
  "file_type": "EX-21",
  "file_description": "LIST OF COMPANY 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/66202/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66202/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66202/receipt.json