Chain of custody receipt

Source #10507

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 — Committee on Foreign Investment in the United States (2012-10-15)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Committee%20on%20Foreign%20Investment%20in%20the%20United%20States%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2012-10-15
EntityCommittee on Foreign Investment in the United States
Captured2026-04-15T08:05:54.519Z UTC
Hash computed at2026-04-15T08:05:54.519Z UTC
SHA-25661e897c8118ad2bb91ca108061f94f61ca888a099f254bfedc876cb27eea50ac
Content length64,433 bytes
Content preview (first 800 chars) 
{"took":2981,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":3353,"relation":"eq"},"max_score":14.046603,"hits":[{"_index":"edgar_file","_id":"0001140361-12-043733:formsc13da.htm","_score":14.046603,"_source":{"ciks":["0001167178","0001158675"],"period_ending":null,"file_num":["005-85172"],"display_names":["A123 SYSTEMS, INC. (CIK 0001167178)","WANXIANG GROUP CORP (CIK 0001158675)"],"xsl":null,"sequence":1,"root_forms":["SC 13D"],"file_date":"2012-10-15","biz_states":["MA","F4"],"sics":["3690"],"form":"SC 13D/A","adsh":"0001140361-12-043733","film_num":["121142891"],"biz_locations":["Waltham, MA","Hangzhou, Zhejiang Province, F4"],"file_type":"SC 13D/A","file_description":"WANXIANG GROUP CORPORATION SC 13D/A 10-11-2012 (A123…

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/10507/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/10507/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/10507/receipt.json