Chain of custody receipt

Source #3110

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.

TitleGAO Report GAO-25-107469
Original URLhttps://docket.acc.com/complying-transparency-requirements-procurement-and-avoiding-legal-pitfalls
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2024-12-31
EntityFederal Procurement Data System
Captured2026-04-08T19:59:50.887Z UTC
Hash computed at2026-04-08T19:59:50.887Z UTC
SHA-256dcea7540b23ea8080202b56d11501d9a82f7ba0946bce7b9f1975cad572973f7
Content length99 bytes
Content preview (first 800 chars) 
Federal agencies reported about $755 billion in procurement obligations to FPDS in fiscal year 2024

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/3110/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3110/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3110/receipt.json