Chain of custody receipt

Source #10295

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.

TitleBBC Science Focus and other sources
Original URLhttps://builtin.com/articles/what-is-palantir
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2004-01-01
EntityCentral Intelligence Agency (CIA)
Captured2026-04-14T01:16:34.500Z UTC
Hash computed at2026-04-14T01:16:34.500Z UTC
SHA-256efa6108baf7d72573d3fe3365dda22905f5989961963c804c47dc8b115175673
Content length108 bytes
Content preview (first 800 chars) 
The CIA helped Palantir refine Gotham, its first software product, and became its first significant customer

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/10295/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/10295/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/10295/receipt.json