Chain of custody receipt

Source #45898

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 — York Space Systems (2025-11-17)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22York%20Space%20Systems%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2025-11-17
EntityYork Space Systems
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:45:55.076Z UTC
SHA-2567a9b09a27c13312d7b30c533abcedf4e1a72522c7de3fe188804ad1d44a42818
Content length575 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0002086587"
  ],
  "period_ending": null,
  "file_num": [
    "333-291581"
  ],
  "display_names": [
    "Yellowstone Midco Holdings II, LLC  (CIK 0002086587)"
  ],
  "xsl": null,
  "sequence": 4,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2025-11-17",
  "biz_states": [
    "CO"
  ],
  "sics": [
    "3760"
  ],
  "form": "S-1",
  "adsh": "0001193125-25-284187",
  "film_num": [
    "251489991"
  ],
  "biz_locations": [
    "Denver, CO"
  ],
  "file_type": "EX-10.2",
  "file_description": "EX-10.2",
  "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/45898/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/45898/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/45898/receipt.json