Chain of custody receipt

Source #12161

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 — Universal Avionics Systems Corporation (2007-12-21)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Universal%20Avionics%20Systems%20Corporation%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2007-12-21
EntityUniversal Avionics Systems Corporation
Captured2026-04-23T06:28:14.203Z UTC
Hash computed at2026-04-23T06:28:14.203Z UTC
SHA-25616c9f8e78c4345c9502491bdc18e908e2990f4d7a366ef42432f75b97499d226
Content length23,267 bytes
Content preview (first 800 chars)
{"took":1793,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":42,"relation":"eq"},"max_score":14.634493,"hits":[{"_index":"edgar_file","_id":"0001193125-07-270403:d10k.htm","_score":14.634493,"_source":{"ciks":["0000033619"],"period_ending":"2007-10-26","file_num":["001-06357"],"display_names":["ESTERLINE TECHNOLOGIES CORP (CIK 0000033619)"],"xsl":null,"sequence":1,"root_forms":["10-K"],"file_date":"2007-12-21","biz_states":["WA"],"sics":["3823"],"form":"10-K","adsh":"0001193125-07-270403","film_num":["071323196"],"biz_locations":["Bellevue, WA"],"file_type":"10-K","file_description":"FORM…

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/12161/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/12161/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/12161/receipt.json