Chain of custody receipt

Source #10223

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.

TitleLobbying Disclosure Act filings
Original URLhttps://www.darley.com/wp-content/uploads/2024/04/Top-100-Defense-Contractors-2023-and-Top-10-Future-Defense-Programs.pdf
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2025-06-30
EntityBooz Allen Hamilton
Captured2026-04-14T01:09:45.991Z UTC
Hash computed at2026-04-14T01:09:45.991Z UTC
SHA-2562693735942c5ead1b564efd928e2cbe43ec83816b84ef2abe50aee0166e72850
Content length166 bytes
Content preview (first 800 chars) 
Booz Allen Hamilton lobbied on cybersecurity, federal cyber workforce, federal procurement policy, missile defense, and National Defense Authorization Act for FY 2026

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/10223/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/10223/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/10223/receipt.json