Chain of custody receipt

Source #18850

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 — Spero Ventures (2019-05-22)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Spero%20Ventures%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2019-05-22
EntitySpero Ventures
Captured2026-04-23T23:54:07.193Z UTC
Hash computed at2026-04-23T23:54:07.193Z UTC
SHA-256a0cd4f84447df5241b967ee3111639bc991115ad3f99aa642352160508fde9c9
Content length2,764 bytes
Content preview (first 800 chars) 
{"took":2224,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":3,"relation":"eq"},"max_score":7.5032244,"hits":[{"_index":"edgar_file","_id":"0001104659-24-051996:tm2330035d4_def14a.htm","_score":7.5032244,"_source":{"ciks":["0001065088"],"period_ending":"2024-06-20","file_num":["001-37713"],"display_names":["EBAY INC (EBAY) (CIK 0001065088)"],"xsl":null,"sequence":1,"root_forms":["DEF 14A"],"file_date":"2024-04-25","biz_states":["CA"],"sics":["7389"],"form":"DEF 14A","adsh":"0001104659-24-051996","film_num":["24876812"],"biz_locations":["San Jose, CA"],"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/18850/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/18850/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/18850/receipt.json