Chain of custody receipt

Source #5784

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 — Firestorm Labs (2026-03-05)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Firestorm%20Labs%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2026-03-05
EntityFirestorm Labs
Captured2026-04-12T23:12:40.532Z UTC
Hash computed at2026-04-12T23:12:40.532Z UTC
SHA-256d7b839903b68bbfedfa64994fe0343bcca2278a16d430ad5fb886739ae8e8e61
Content length7,574 bytes
Content preview (first 800 chars) 
{"took":987,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":12,"relation":"eq"},"max_score":10.57025,"hits":[{"_index":"edgar_file","_id":"0001554795-24-000238:rcat0923form10q.htm","_score":10.57025,"_source":{"ciks":["0000748268"],"period_ending":"2024-07-31","file_num":["001-40202"],"display_names":["Red Cat Holdings, Inc. (RCAT) (CIK 0000748268)"],"xsl":null,"sequence":1,"root_forms":["10-Q"],"file_date":"2024-09-23","biz_states":["PR"],"sics":["7372"],"form":"10-Q","adsh":"0001554795-24-000238","film_num":["241316460"],"biz_locations":["San Juan, PR"],"file_type":"10-Q","file_description":"FORM…

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/5784/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/5784/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/5784/receipt.json