Chain of custody receipt

Source #55

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.

TitleResearch: Jensen Huang - SEC filing
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Jensen%20Huang%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationPublic Record Research
Source typeweb_search
Date2024
EntityJensen Huang
Captured2026-04-05T07:37:32.328Z UTC
Hash computed at2026-04-05T07:37:32.328Z UTC
SHA-25654766eb4461c3fb4e6d9cc99c1a8a7f2f466c11987aee3d7fa22c9235335be6e
Content length3,643 bytes
Content preview (first 800 chars) 
{"took":264,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":4,"relation":"eq"},"max_score":4.5733204,"hits":[{"_index":"edgar_file","_id":"0001601830-24-000040:rxrx-20240423.htm","_score":4.5733204,"_source":{"ciks":["0001601830"],"period_ending":"2024-06-03","file_num":["001-40323"],"display_names":["RECURSION PHARMACEUTICALS, INC. (RXRX) (CIK 0001601830)"],"xsl":null,"sequence":1,"root_forms":["DEF 14A"],"file_date":"2024-04-23","biz_states":["UT"],"sics":["2836"],"form":"DEF 14A","adsh":"0001601830-24-000040","film_num":["24865837"],"biz_locations":["Salt Lake City, UT"],"file_type":"DEF 14A","file_description":"DEF…

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/55/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/55/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/55/receipt.json