Chain of custody receipt

Source #40847

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 Imagery and Mapping Agency (2010-02-24)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22National%20Imagery%20and%20Mapping%20Agency%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2010-02-24
EntityNational Imagery and Mapping Agency
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-25679de14bf06a28ab6e141e1f41d1b80497e4d212591d6231a4256f4ca3932dc41
Content length560 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001208208"
  ],
  "period_ending": "2009-12-31",
  "file_num": [
    "001-34299"
  ],
  "display_names": [
    "DIGITALGLOBE INC  (CIK 0001208208)"
  ],
  "xsl": null,
  "sequence": 3,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2010-02-24",
  "biz_states": [
    "CO"
  ],
  "sics": [
    "4899"
  ],
  "form": "10-K",
  "adsh": "0000950123-10-016348",
  "film_num": [
    "10629920"
  ],
  "biz_locations": [
    "Longmont, CO"
  ],
  "file_type": "EX-10.1",
  "file_description": "EXHIBIT 10.1",
  "inc_states": [],
  "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/40847/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40847/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40847/receipt.json