Chain of custody receipt

Source #6380

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.

TitlePolitics.co.uk profile
Original URLhttps://info.publicintelligence.net/UK-ISC-MassSurveillance.pdf
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date1981-01-01
EntitySir Julian Lewis
Captured2026-04-13T03:09:10.421Z UTC
Hash computed at2026-04-13T03:09:10.421Z UTC
SHA-2569e00a4409d723ee1974684f6e4c3689f421832e8c828c91f0f24f76e50ee96f3
Content length102 bytes
Content preview (first 800 chars) 
From 1981-1985, Lewis was a leader of anti-CND campaigns with The Coalition for Peace Through Security

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/6380/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6380/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6380/receipt.json