Chain of custody receipt

Source #8433

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: Office of Procurement Operations (OPO) — Parliamentary records (no results)
Original URL(none — typed-API result with no web URL)
PublicationSearch Scope Note
Source typeparliamentary_record
Date2026
EntityOffice of Procurement Operations (OPO)
Captured2026-04-13T18:46:40.365Z UTC
Hash computed at2026-04-13T18:46:40.365Z UTC
SHA-2563fa54c6d429ef188e5f5491a783898cf4c79387b2732140d12f6881d6034a3ce
Content length241 bytes
Content preview (first 800 chars) 
No Parliamentary records found for "Office of Procurement Operations (OPO)" in public databases or web search. This may be due to name variations, subsidiary filings, or limited search coverage — not necessarily absence from public record.

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/8433/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/8433/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/8433/receipt.json