Chain of custody receipt

Source #12183

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 — Lee H. Hamilton (2008-06-09)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Lee%20H.%20Hamilton%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2008-06-09
EntityLee H. Hamilton
Captured2026-04-23T06:28:34.187Z UTC
Hash computed at2026-04-23T06:28:34.187Z UTC
SHA-25629ed9df0da01ae0a04863b056b08823ff6cf28c920ff600e2919e3bca00fa83b
Content length3,068 bytes
Content preview (first 800 chars)
{"took":1439,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":3,"relation":"eq"},"max_score":13.838249,"hits":[{"_index":"edgar_file","_id":"0000950157-08-000437:sc13da.htm","_score":13.838249,"_source":{"ciks":["0001172243","0001422152"],"period_ending":null,"file_num":["005-78718"],"display_names":["MTC TECHNOLOGIES INC (CIK 0001172243)","BAE Systems, Inc. (CIK 0001422152)"],"xsl":null,"sequence":1,"root_forms":["SC 13D"],"file_date":"2008-06-09","biz_states":["MD"],"sics":["7373"],"form":"SC 13D/A","adsh":"0000950157-08-000437","film_num":["08888848"],"biz_locations":["","Rockville, MD"],"file_type":"SC 13D/A","file_description":"AMENDMENT NO…

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/12183/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/12183/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/12183/receipt.json