Chain of custody receipt

Source #2217

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.

TitleResearch: Cambridge Analytica — Corporate registrations (no results)
Original URL(none — typed-API result with no web URL)
PublicationAI Analysis — no URL
Source typegovernment_disclosure
Date2026
EntityCambridge Analytica
Captured2026-04-07T04:47:33.941Z UTC
Hash computed at2026-04-07T04:47:33.941Z UTC
SHA-256b1decf84c8f7196a283b94d1dba41edca473be3648fcea93b662f96b6f5dc468
Content length93 bytes
Content preview (first 800 chars) 
No Corporate registrations found for "Cambridge Analytica" in public databases or web search.

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/2217/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/2217/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/2217/receipt.json