Chain of custody receipt

Source #5339

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 typeweb_search
Date2025-11-17
EntityYork Space Systems
Captured2026-04-12T17:39:48.578Z UTC
Hash computed at2026-04-12T17:39:48.578Z UTC
SHA-256f1b7bd76387b9ebb27585a5d72133e7f7e279373f94ec2f9b990977352b45454
Content length31,936 bytes
Content preview (first 800 chars)
{"took":4856,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":51,"relation":"eq"},"max_score":11.976289,"hits":[{"_index":"edgar_file","_id":"0001628280-26-019923:exhibit212yorksubsidiaries.htm","_score":11.976289,"_source":{"ciks":["0002086587"],"period_ending":"2025-12-31","file_num":["001-43088"],"display_names":["York Space Systems Inc. (YSS) (CIK 0002086587)"],"xsl":null,"sequence":"4","root_forms":["10-K"],"file_date":"2026-03-20","biz_states":["CO"],"sics":["3760"],"form":"10-K","adsh":"0001628280-26-019923","film_num":["26775587"],"biz_locations":["Greenwood Village…

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/5339/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/5339/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/5339/receipt.json