Chain of custody receipt

Source #21

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.

TitleResearch: Alex Karp - federal contracts site:usaspending.gov
Original URLhttps://www.usaspending.gov/search/?hash=eyJmaWx0ZXJzIjp7ImtleXdvcmQiOiJBbGV4IEthcnAifX0
PublicationPublic Record Research
Source typediscovery_scope_note
Date2024
EntityAlex Karp
Captured2026-04-05T07:31:36.511Z UTC
Hash computed at2026-04-05T07:31:36.511Z UTC
SHA-25697475bd4c30a5ddb087fcd28115c1ebb177d3f4fb5fe3105cd417fa3218b4574
Content length586 bytes
Content preview (first 800 chars)
Alex Karp is the co-founder and CEO of Palantir Technologies, a data analytics company that is one of the largest federal contractors in the technology sector. USASpending.gov, the official source for federal spending data, documents Palantir's extensive contract portfolio with U.S. government agencies. While USASpending.gov tracks contracts by company rather than individual executives, Karp's role as CEO makes him directly relevant to Palantir's federal contracting activities. Palantir has secured billions in federal contracts across defense, intelligence, and civilian agencies.

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/21/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/21/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/21/receipt.json