Chain of custody receipt

Source #6122

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.

TitleGSA Federal Schedules analysis of USASpending.gov data
Original URLhttps://gsa.federalschedules.com/resources/dhs-agency-spending/
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2016-09-30
EntityUS Department of Homeland Security (DHS)
Captured2026-04-12T23:17:08.264Z UTC
Hash computed at2026-04-12T23:17:08.264Z UTC
SHA-2566ebfce1f389870bb05f188cf8defd11dff9461dd09d82952275ea7766df51530
Content length102 bytes
Content preview (first 800 chars) 
DHS awarded $13.8 billion in contracts in fiscal year 2016, representing an 11% increase since FY 2012

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/6122/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6122/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6122/receipt.json