Chain of custody receipt

Source #3781

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 — Aleksandr Kogan (2025-01-06)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Aleksandr%20Kogan%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2025-01-06
EntityAleksandr Kogan
Captured2026-04-12T01:47:41.903Z UTC
Hash computed at2026-04-12T01:47:41.903Z UTC
SHA-2563879157808f528ffc1383e9eea43d93a3ee48f8218b745b1181c1242d9a1edc7
Content length1,761 bytes
Content preview (first 800 chars)
{"took":524,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":1,"relation":"eq"},"max_score":9.064198,"hits":[{"_index":"edgar_file","_id":"0000931731-01-500033:completenationalfruitveg.txt","_score":9.064198,"_source":{"ciks":["0000815747"],"period_ending":"2000-12-31","file_num":["000-25665"],"display_names":["NATIONAL FRUIT AND VEGETABLE TECHNOLOGY CORP (CIK 0000815747)"],"xsl":null,"sequence":1,"root_forms":["10-K"],"file_date":"2001-04-02","biz_states":["OH"],"sics":["2090"],"form":"10-K","adsh":"0000931731-01-500033","film_num":["1589224"],"biz_locations":["Baltimore, OH"],"file_type":"10-K","file_description":"ANNUAL…

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/3781/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3781/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3781/receipt.json