Chain of custody receipt

Source #13083

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 — Derek Schmidt (2023-09-13)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Derek%20Schmidt%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2023-09-13
EntityDerek Schmidt
Captured2026-04-23T06:52:07.773Z UTC
Hash computed at2026-04-23T06:52:07.773Z UTC
SHA-2564dc7377aca90b771dba4eccbdc4af6271a1602dcfa919f4ba59d167ac69e3e6d
Content length15,950 bytes
Content preview (first 800 chars) 
{"took":296,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":24,"relation":"eq"},"max_score":22.363106,"hits":[{"_index":"edgar_file","_id":"0001127602-23-024082:form4.xml","_score":22.363106,"_source":{"ciks":["0001520575","0000037472"],"period_ending":"2023-09-11","file_num":["000-05151"],"display_names":["Schmidt Derek P (CIK 0001520575)","FLEXSTEEL INDUSTRIES INC (FLXS) (CIK 0000037472)"],"xsl":"xslF345X05","schema_version":"X0508","sequence":1,"root_forms":["4"],"file_date":"2023-09-13","biz_states":["IA"],"sics":["2510"],"form":"4","adsh":"0001127602-23-024082","film_num":["231253124"],"biz_locations":["","Dubuque, IA"],"file_type":"4","file_description":"PRIMARY…

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/13083/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/13083/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/13083/receipt.json