Chain of custody receipt

Source #13309

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 — Donald G. Davis (2012-05-24)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Donald%20G.%20Davis%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2012-05-24
EntityDonald G. Davis
Captured2026-04-23T07:03:26.155Z UTC
Hash computed at2026-04-23T07:03:26.155Z UTC
SHA-256e1a100a7631cb918974d50550e47b378942b485fb209bf585e2f3d443c743c5e
Content length19,891 bytes
Content preview (first 800 chars) 
{"took":770,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":32,"relation":"eq"},"max_score":17.791063,"hits":[{"_index":"edgar_file","_id":"0001477932-11-001470:mamatech_ex101.htm","_score":17.791063,"_source":{"ciks":["0000704366"],"period_ending":"2010-12-31","file_num":["000-11050"],"display_names":["MAMMATECH CORP (CIK 0000704366)"],"xsl":null,"sequence":6,"root_forms":["10-Q"],"file_date":"2011-08-15","biz_states":["FL"],"sics":["3842"],"form":"10-Q/A","adsh":"0001477932-11-001470","film_num":["111035624"],"biz_locations":["Gainesville, FL"],"file_type":"EX-10.1","file_description":"STRATEGIC CONSULTING SERVICES AGREEMENT WITH NBN ENTERPRISES…

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/13309/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/13309/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/13309/receipt.json