Chain of custody receipt

Source #4423

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 — Medipost (2024-03-11)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Medipost%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2024-03-11
EntityMedipost
Captured2026-04-12T01:53:01.018Z UTC
Hash computed at2026-04-12T01:53:01.018Z UTC
SHA-256670baffcc715d7377abc394703b24c6e92b8162c03c921f1aeb95cc75d96b93d
Content length14,945 bytes
Content preview (first 800 chars)
{"took":193,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":25,"relation":"eq"},"max_score":5.6743784,"hits":[{"_index":"edgar_file","_id":"0001213900-24-021391:ea0201525-10ka1_longever.htm","_score":5.6743784,"_source":{"ciks":["0001721484"],"period_ending":"2023-12-31","file_num":["001-40060"],"display_names":["Longeveron Inc. (LGVN) (CIK 0001721484)"],"xsl":null,"sequence":1,"root_forms":["10-K"],"file_date":"2024-03-11","biz_states":["FL"],"sics":["2834"],"form":"10-K/A","adsh":"0001213900-24-021391","film_num":["24737912"],"biz_locations":["Miami, FL"],"file_type":"10-K/A","file_description":"AMENDMENT NO. 1 TO 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/4423/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4423/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4423/receipt.json