Chain of custody receipt

Source #6126

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.

TitlePOGO analysis of USASpending.gov data
Original URLhttps://fed-spend.com/blog/federal-contracts-database-search-guide
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2025-09-30
EntityUS Department of Homeland Security (DHS)
Captured2026-04-12T23:17:08.308Z UTC
Hash computed at2026-04-12T23:17:08.308Z UTC
SHA-256a4f4aab3794b4c743797d0012304ee793fdf1c99dff27a2692ee8a63f7717f9e
Content length150 bytes
Content preview (first 800 chars) 
11 DHS contract awards between $99,999 and $99,999.99 occurred in August-September 2025, compared to only 7 such awards from October 2015 to July 2025

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/6126/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6126/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6126/receipt.json