Chain of custody receipt

Source #6365

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 press release on US-UK CMAA
Original URLhttps://www.cbp.gov/
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2020-12-16
EntityCustoms Mutual Assistance Agreement (CMAA)
Captured2026-04-13T03:07:43.272Z UTC
Hash computed at2026-04-13T03:07:43.272Z UTC
SHA-256cc8863dc8c86e0103590810b4591b99a4090af983919c25510d6b69d5916163d
Content length214 bytes
Content preview (first 800 chars) 
CMAA provides legal framework for exchange of information and evidence to assist in 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/6365/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/6365/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/6365/receipt.json