Chain of custody receipt

Source #4757

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 — ZeniMax Media (2009-07-07)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22ZeniMax%20Media%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2009-07-07
EntityZeniMax Media Inc.
Captured2026-04-12T17:31:55.447Z UTC
Hash computed at2026-04-12T17:31:55.447Z UTC
SHA-256666e6aa6dbe33598a3b3c4fcf200a9f3254c474397ba2905c8cac498c58a61c1
Content length30,651 bytes
Content preview (first 800 chars)
{"took":695,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":52,"relation":"eq"},"max_score":19.823181,"hits":[{"_index":"edgar_file","_id":"0000903423-02-000870:sloan13d_12-23.txt","_score":19.823181,"_source":{"ciks":["0001211623","0000895649"],"period_ending":null,"file_num":["005-44738"],"display_names":["SLOAN HARRY E (CIK 0001211623)","SBS BROADCASTING S A (CIK 0000895649)"],"xsl":null,"sequence":1,"root_forms":["SC 13D"],"file_date":"2002-12-27","biz_states":["P7"],"sics":["4833"],"form":"SC 13D","adsh":"0000903423-02-000870","film_num":["02870654"],"biz_locations":["","Amsterdam, P7"],"file_type":"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/4757/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/4757/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/4757/receipt.json