Chain of custody receipt

Source #4256

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 — Rob Portman (2020-12-02)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Rob%20Portman%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2020-12-02
EntityRob Portman
Captured2026-04-12T01:50:41.218Z UTC
Hash computed at2026-04-12T01:50:41.218Z UTC
SHA-256e988ae51b4c3094e87550f0ac57f633c019adf642ee9e8f5f702f9d73f459643
Content length3,083 bytes
Content preview (first 800 chars) 
{"took":658,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":3,"relation":"eq"},"max_score":8.4798355,"hits":[{"_index":"edgar_file","_id":"0001193125-05-208763:d10q.htm","_score":8.4798355,"_source":{"ciks":["0000012927"],"period_ending":"2005-09-30","file_num":["001-00442"],"display_names":["BOEING CO (BA) (CIK 0000012927)"],"xsl":null,"sequence":1,"root_forms":["10-Q"],"file_date":"2005-10-26","biz_states":["WA"],"sics":["3721"],"form":"10-Q","adsh":"0001193125-05-208763","film_num":["051157051"],"biz_locations":["Seattle, WA"],"file_type":"10-Q","file_description":"FORM…

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/4256/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4256/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4256/receipt.json