Chain of custody receipt

Source #40251

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 — Space Development Agency (2026-03-31)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Space%20Development%20Agency%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2026-03-31
EntitySpace Development Agency
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:15:17.880Z UTC
SHA-2569f689042e8c28bc3f7b4f4a0a41f710522b042164927dd5c15e1014f97decabc
Content length573 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001781162"
  ],
  "period_ending": "2025-12-31",
  "file_num": [
    "001-39128"
  ],
  "display_names": [
    "Momentus Inc.  (MNTS, MNTSW)  (CIK 0001781162)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2026-03-31",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "3760"
  ],
  "form": "10-K",
  "adsh": "0001628280-26-022291",
  "film_num": [
    "26819562"
  ],
  "biz_locations": [
    "San Jose, CA"
  ],
  "file_type": "10-K",
  "file_description": "10-K",
  "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/40251/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40251/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40251/receipt.json