Chain of custody receipt

Source #3659

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.

Title2023 10-K filing
Original URLhttps://fintel.io/sfs/us/stgw
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2023-03-06
EntityStagwell Inc
Captured2026-04-11T20:19:45.546Z UTC
Hash computed at2026-04-11T20:19:45.546Z UTC
SHA-2564090fcd0ff9a643f37964260e4008ed26ceb91315d96ceedd56808fb7cb871bf
Content length154 bytes
Content preview (first 800 chars) 
Stagwell maintains 100% ownership position in substantially all of its Brands, with remainder being majority owned with management owning remaining equity

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/3659/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3659/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3659/receipt.json