Chain of custody receipt

Source #3220

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.

TitleFounders Fund website copyright notice showing 'Founders Funder ® is a registered trademark of Founders Fund, LLC'
Original URLhttps://find-and-update.company-information.service.gov.uk/company/09564631
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date—
EntityFounders Fund
Captured2026-04-08T20:26:20.299Z UTC
Hash computed at2026-04-08T20:26:20.299Z UTC
SHA-25672eff46339dd24a87d6bf1a474b29c84dd59f375cb7492b5a69a1ad45dcb9e80
Content length2,180 bytes
Content preview (first 800 chars) 
FOUNDERS FACTORY LIMITED overview - Find and update company information - GOV.UK

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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/3220/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3220/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3220/receipt.json