Chain of custody receipt

Source #6389

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.

TitleCampaign Against Arms Trade documentation
Original URLhttps://edm.parliament.uk/early-day-motion/65235/government-contract-with-palantir-technologies
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2025-01-01
EntityPalantir Technologies
Captured2026-04-13T03:10:02.174Z UTC
Hash computed at2026-04-13T03:10:02.174Z UTC
SHA-256f16dc39c73aaab1a7353f8d8ad2d4fb55b55ebb821fa20f32fb7cc0113b4253c
Content length99 bytes
Content preview (first 800 chars) 
Palantir announced plans to invest £1.5 billion in the UK following successful MoD AI software bid

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/6389/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6389/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6389/receipt.json