Chain of custody receipt

Source #5780

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 — Blockchain Capital (2020-04-22)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Blockchain%20Capital%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2020-04-22
EntityBlockchain Capital
Captured2026-04-12T23:12:37.852Z UTC
Hash computed at2026-04-12T23:12:37.852Z UTC
SHA-25688d6c6a069322d6e838cb5a311001d8e4661ea1070b319780b884aadac13b9a4
Content length32,815 bytes
Content preview (first 800 chars) 
{"took":958,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":54,"relation":"eq"},"max_score":13.661564,"hits":[{"_index":"edgar_file","_id":"0001564590-22-037637:adex-ex101_215.htm","_score":13.661564,"_source":{"ciks":["0001830029"],"period_ending":"2022-09-30","file_num":["001-39872"],"display_names":["Adit EdTech Acquisition Corp. (GRDI, GRDIW) (CIK 0001830029)"],"xsl":null,"sequence":2,"root_forms":["10-Q"],"file_date":"2022-11-14","biz_states":["NY"],"sics":["7374"],"form":"10-Q","adsh":"0001564590-22-037637","film_num":["221386234"],"biz_locations":["New York…

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/5780/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/5780/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/5780/receipt.json