Chain of custody receipt

Source #4918

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 — David Zinsner (2003-09-10)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22David%20Zinsner%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2003-09-10
EntityDavid Zinsner
Captured2026-04-12T17:34:11.787Z UTC
Hash computed at2026-04-12T17:34:11.787Z UTC
SHA-256a5a34f175a7c69dc7c855b8d0852831d8e2bef013f0454546a396cb1bab2f750
Content length57,939 bytes
Content preview (first 800 chars) 
{"took":2044,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":130,"relation":"eq"},"max_score":27.122448,"hits":[{"_index":"edgar_file","_id":"0001193125-03-047593:dsc13ga.htm","_score":27.122448,"_source":{"ciks":["0001262645","0001081197"],"period_ending":null,"file_num":["005-57605"],"display_names":["INTERSIL INVESTMENT CO (CIK 0001262645)","GLOBESPANVIRATA INC (CIK 0001081197)"],"xsl":null,"sequence":1,"root_forms":["SC 13G"],"file_date":"2003-09-10","biz_states":["NJ"],"sics":["3674"],"form":"SC 13G/A","adsh":"0001193125-03-047593","film_num":["03889224"],"biz_locations":["","Red Bank, NJ"],"file_type":"SC 13G/A","file_description":"AMENDMENT…

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/4918/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4918/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4918/receipt.json