Chain of custody receipt

Source #6451

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.

TitleNHS England announcement
Original URLhttps://www.companiesintheuk.co.uk/ltd/palantir-technologies-uk,
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2023-11-21
EntityNHS England
Captured2026-04-13T04:14:55.608Z UTC
Hash computed at2026-04-13T04:14:55.608Z UTC
SHA-256353f33f30bfa388e0fab1293fee998f880217cb91f20a6276433b8587a860ea6
Content length90 bytes
Content preview (first 800 chars) 
Palantir was awarded a £330 million NHS Federated Data Platform contract in November 2023

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/6451/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6451/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6451/receipt.json