Chain of custody receipt

Source #8645

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 — Trust Stamp (2025-12-16)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Trust%20Stamp%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2025-12-16
EntityTrust Stamp
Captured2026-04-13T19:23:31.722Z UTC
Hash computed at2026-04-13T19:23:31.722Z UTC
SHA-2563fd91b1cde9b6ec6a372896296ea4a08149a23081f57a2152019fb1d26e027d8
Content length26,233 bytes
Content preview (first 800 chars) 
{"took":1981,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":47,"relation":"eq"},"max_score":11.4014635,"hits":[{"_index":"edgar_file","_id":"0001718939-25-000139:idai-20250630xex1041.htm","_score":11.4014635,"_source":{"ciks":["0001718939"],"period_ending":"2025-06-30","file_num":["001-41252"],"display_names":["T Stamp Inc (IDAI) (CIK 0001718939)"],"xsl":null,"sequence":"2","root_forms":["10-Q"],"file_date":"2025-08-14","biz_states":["GA"],"sics":["7372"],"form":"10-Q","adsh":"0001718939-25-000139","film_num":["251218984"],"biz_locations":["Atlanta…

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/8645/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/8645/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/8645/receipt.json