Chain of custody receipt

Source #4058

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 — Cowen & Company (2012-02-15)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Cowen%20%26%20Company%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2012-02-15
EntityCowen & Company
Captured2026-04-12T01:49:27.782Z UTC
Hash computed at2026-04-12T01:49:27.782Z UTC
SHA-256a22d2ea6510e3a01ec0fce70ebb0a69d206acfa74c830f355999cd58879a7754
Content length59,525 bytes
Content preview (first 800 chars) 
{"took":543,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":532,"relation":"eq"},"max_score":10.90032,"hits":[{"_index":"edgar_file","_id":"0000950142-12-000405:eh1200309_ex2.htm","_score":10.90032,"_source":{"ciks":["0001350778","0001461993"],"period_ending":null,"file_num":["005-86624"],"display_names":["Aisling Capital II LP (CIK 0001350778)","CEMPRA, INC. (CIK 0001461993)"],"xsl":null,"sequence":3,"root_forms":["SC 13D"],"file_date":"2012-02-15","biz_states":["NY","NC"],"sics":["2834"],"form":"SC 13D","adsh":"0000950142-12-000405","film_num":["12616844"],"biz_locations":["New York, NY","Chapel Hill, NC"],"file_type":"EX-99.2","file_description":"EXHIBIT…

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/4058/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4058/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4058/receipt.json