Chain of custody receipt

Source #4189

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 — Sullivan & Cromwell LLP (2025-03-28)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Sullivan%20%26%20Cromwell%20LLP%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2025-03-28
EntitySullivan & Cromwell LLP
Captured2026-04-12T01:50:20.548Z UTC
Hash computed at2026-04-12T01:50:20.548Z UTC
SHA-256574305fa7e20b874d8b9fd5ec744264167d235626bb6e6b0ba5a28ce2b29097a
Content length66,125 bytes
Content preview (first 800 chars) 
{"took":957,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":2992,"relation":"eq"},"max_score":25.608507,"hits":[{"_index":"edgar_file","_id":"0001558370-25-003985:btai-20241231xex10d226.htm","_score":25.608507,"_source":{"ciks":["0001720893"],"period_ending":"2024-12-31","file_num":["001-38410"],"display_names":["BioXcel Therapeutics, Inc. (BTAI) (CIK 0001720893)"],"xsl":null,"sequence":"4","root_forms":["10-K"],"file_date":"2025-03-28","biz_states":["CT"],"sics":["2834"],"form":"10-K","adsh":"0001558370-25-003985","film_num":["25785937"],"biz_locations":["New Haven…

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/4189/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4189/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4189/receipt.json