Chain of custody receipt

Source #5077

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 — Robert Morrow (2015-08-10)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Robert%20Morrow%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2015-08-10
EntityRobert Morrow
Captured2026-04-12T17:38:46.131Z UTC
Hash computed at2026-04-12T17:38:46.131Z UTC
SHA-256406f32841e5c1d754e177c945855f15998a1c69e1f0b49a8261d77f501337a11
Content length12,648 bytes
Content preview (first 800 chars) 
{"took":1120,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":19,"relation":"eq"},"max_score":14.524742,"hits":[{"_index":"edgar_file","_id":"0000015615-03-000009:exh10-7.txt","_score":14.524742,"_source":{"ciks":["0000015615"],"period_ending":"2002-12-31","file_num":["001-08106"],"display_names":["MASTEC INC (MTZ) (CIK 0000015615)"],"xsl":null,"sequence":3,"root_forms":["10-K"],"file_date":"2003-04-09","biz_states":["FL"],"sics":["1623"],"form":"10-K","adsh":"0000015615-03-000009","film_num":["03643211"],"biz_locations":["Miami…

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/5077/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/5077/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/5077/receipt.json