Chain of custody receipt

Source #10225

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.

TitleWashington Technology analysis citing Deltek data
Original URLhttps://www.federalcompass.com/federal-government-awarded-contracts/by-gov/DARPA-Contracts-Management-Office
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2023-10-10
EntityBooz Allen Hamilton
Captured2026-04-14T01:09:46.006Z UTC
Hash computed at2026-04-14T01:09:46.006Z UTC
SHA-256bfbcb348bec7b3a322ebcddead44a24a870066c982fb58e710bcbc1ca0c11e34
Content length119 bytes
Content preview (first 800 chars) 
Booz Allen Hamilton was the largest recipient of DARPA TASS obligations at around $160 million according to Deltek data

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/10225/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/10225/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/10225/receipt.json