Chain of custody receipt

Source #6349

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.

TitleCBP official description
Original URLhttps://www.refworld.org/document-sources/united-kingdom-home-office
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date—
EntityCustoms Mutual Assistance Agreement (CMAA)
Captured2026-04-13T03:06:48.029Z UTC
Hash computed at2026-04-13T03:06:48.029Z UTC
SHA-256ba12a06ff9a5ae06f011ddaf95899cc0cef3ca29226a37c319d79120e760c0c1
Content length234 bytes
Content preview (first 800 chars) 
CMAAs provide a legal framework for the exchange of information and evidence to assist countries in the enforcement of customs laws, including duty evasion, trafficking, proliferation, money laundering and terrorism-related activities

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/6349/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6349/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6349/receipt.json