Chain of custody receipt

Source #2971

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.

TitleMultiple biographical sources and Wikipedia
Original URLhttps://www.investor.gov/introduction-investing/investing-basics/glossary/form-13f-reports-filed-institutional-investment
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date1988-01-01
EntityJ. Epstein & Company
Captured2026-04-08T18:13:28.678Z UTC
Hash computed at2026-04-08T18:13:28.678Z UTC
SHA-25634380e1fc101d5cb8964e82d722e0d3bc2cf16d25042b67e0c45f4f683374db5
Content length85 bytes
Content preview (first 800 chars) 
J. Epstein & Company was established in 1988 and later became Financial Trust Company

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/2971/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/2971/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/2971/receipt.json