Chain of custody receipt

Source #5896

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 — Stagwell Media LP (2023-05-10)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Stagwell%20Media%20LP%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2023-05-10
EntityStagwell Media LP
Captured2026-04-12T23:13:02.759Z UTC
Hash computed at2026-04-12T23:13:02.759Z UTC
SHA-25643ed9a9ce1cfbfcca1912c226faea0d4b98e829ea86960dee5deb2dfc529a5c0
Content length53,880 bytes
Content preview (first 800 chars)
{"took":1357,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":85,"relation":"eq"},"max_score":26.875349,"hits":[{"_index":"edgar_file","_id":"0001193125-23-140847:d485519dsc13d.htm","_score":26.875349,"_source":{"ciks":["0000876883","0001512910"],"period_ending":null,"file_num":["005-53561"],"display_names":["Stagwell Inc (STGW) (CIK 0000876883)","AlpInvest Partners B.V. (CIK 0001512910)"],"xsl":null,"sequence":1,"root_forms":["SC 13D"],"file_date":"2023-05-10","biz_states":["NY","P7"],"sics":["7311"],"form":"SC 13D","adsh":"0001193125-23-140847","film_num":["23907523"],"biz_locations":["New York, NY","Amsterdam, P7"],"file_type":"SC 13D","file_description":"SC…

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/5896/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/5896/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/5896/receipt.json