Chain of custody receipt

Source #4140

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 — Chuck Johnson (2003-09-29)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Chuck%20Johnson%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2003-09-29
EntityChuck Johnson
Captured2026-04-12T01:49:50.840Z UTC
Hash computed at2026-04-12T01:49:50.840Z UTC
SHA-25635e9f10e5c4f70535e10b03a687db809440f7d16f9665a4cc436ab374836ef45
Content length7,775 bytes
Content preview (first 800 chars) 
{"took":871,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":10,"relation":"eq"},"max_score":17.36549,"hits":[{"_index":"edgar_file","_id":"0001104659-07-059638:a07-19298_1ex4d1.htm","_score":17.36549,"_source":{"ciks":["0000101778"],"period_ending":"2007-06-30","file_num":["001-05153"],"display_names":["MARATHON OIL CORP (MRO) (CIK 0000101778)"],"xsl":null,"sequence":2,"root_forms":["10-Q"],"file_date":"2007-08-07","biz_states":["TX"],"sics":["2911"],"form":"10-Q","adsh":"0001104659-07-059638","film_num":["071031308"],"biz_locations":["Houston…

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/4140/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4140/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4140/receipt.json