Chain of custody receipt

Source #3662

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.

TitleForm 4 insider trading filing
Original URLhttps://seekingalpha.com/symbol/STGW/sec-filings
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2025-04-04
EntityMark Jeffery Penn
Captured2026-04-11T20:19:45.565Z UTC
Hash computed at2026-04-11T20:19:45.565Z UTC
SHA-256a9b00417bf57bf2429c4a364d2fd64236fa563d38a53d3c84db765b9f0d791f7
Content length156 bytes
Content preview (first 800 chars) 
Mark Jeffery Penn holds 22,625,558 Class A shares directly and 2,000,000 shares indirectly through The Stagwell Group LLC where he is the controlling person

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/3662/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3662/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3662/receipt.json