Chain of custody receipt

Source #61906

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 — National Carriers (2008-11-24)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22National%20Assn%20of%20Letter%20Carriers%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2008-11-24
EntityNational Assn of Letter Carriers
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T00:28:20.364Z UTC
SHA-256796bf489efe7f4d80c8e9ca074dad128d4311181b3757f884938c2a0d8d375b0
Content length579 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001273784"
  ],
  "period_ending": "2008-08-30",
  "file_num": [
    "333-111407"
  ],
  "display_names": [
    "NATIONAL BEEF PACKING CO LLC  (CIK 0001273784)"
  ],
  "xsl": null,
  "sequence": 8,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2008-11-24",
  "biz_states": [
    "MO"
  ],
  "sics": [
    "2011"
  ],
  "form": "10-K",
  "adsh": "0001003297-08-000250",
  "film_num": [
    "081210421"
  ],
  "biz_locations": [
    "Kansas City, MO"
  ],
  "file_type": "EX-21.1",
  "file_description": null,
  "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/61906/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61906/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61906/receipt.json