Chain of custody receipt

Source #202

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.

TitleResearch: MOSAIC - parliamentary record
Original URLhttps://www.congress.gov/search?q=%7B%22search%22%3A%22MOSAIC%22%7D
PublicationPublic Record Research
Source typediscovery_scope_note
Date2024
EntityMOSAIC
Captured2026-04-05T08:06:35.242Z UTC
Hash computed at2026-04-05T08:06:35.242Z UTC
SHA-25642812890b11b69d42f3569d02925c4b0e2b096b59e74d51f94f951a082368f8a
Content length409 bytes
Content preview (first 800 chars)
MOSAIC appears in UK parliamentary records in multiple contexts. The most prominent references relate to the Home Office's MOSAIC database system used for immigration and asylum case management, which has been subject to parliamentary questions and committee scrutiny. Additionally, MOSAIC as a term appears in discussions of community programs and geographic classification systems used by local authorities.

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/202/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/202/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/202/receipt.json