Chain of custody receipt

Source #3446

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.

TitleMultiple news sources including Wikipedia and Elon Musk's announcement on X
Original URLhttps://www.sba.gov/federal-contracting/contracting-guide/basic-requirements
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2025-03-28
EntityxAI
Captured2026-04-09T14:24:01.088Z UTC
Hash computed at2026-04-09T14:24:01.088Z UTC
SHA-256a8b836f2c7add5473567bb1ee1e1d0e1153cc45a2c10728919b09e26b7e3daa1
Content length119 bytes
Content preview (first 800 chars) 
xAI acquired X Corp in an all-stock transaction on March 28, 2025, valuing xAI at $80 billion and X Corp at $33 billion

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/3446/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3446/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3446/receipt.json