Chain of custody receipt

Source #12871

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 — Richard Burr (2018-06-15)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Richard%20Burr%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2018-06-15
EntityRichard Burr
Captured2026-04-23T06:39:35.435Z UTC
Hash computed at2026-04-23T06:39:35.435Z UTC
SHA-25644d190cd0756628608d5f275b24387350db3f2afe174f06d58daa762f1d6cc70
Content length13,464 bytes
Content preview (first 800 chars) 
{"took":987,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":22,"relation":"eq"},"max_score":11.409377,"hits":[{"_index":"edgar_file","_id":"0001376339-15-000054:mdxg-2015331x10xq.htm","_score":11.409377,"_source":{"ciks":["0001376339"],"period_ending":"2015-03-31","file_num":["001-35887"],"display_names":["MIMEDX GROUP, INC. (MDXG) (CIK 0001376339)"],"xsl":null,"sequence":1,"root_forms":["10-Q"],"file_date":"2015-05-01","biz_states":["GA"],"sics":["3841"],"form":"10-Q","adsh":"0001376339-15-000054","film_num":["15824517"],"biz_locations":["Marietta…

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/12871/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/12871/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/12871/receipt.json