Chain of custody receipt

Source #1659

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: HPSP — Corporate registrations (no results)
Original URL(none — typed-API result with no web URL)
PublicationAI Analysis — no URL
Source typegovernment_disclosure
Date2026
EntityHPSP
Captured2026-04-07T04:22:44.819Z UTC
Hash computed at2026-04-07T04:22:44.819Z UTC
SHA-2567ac6d8bf33975d5281ce45af031fe555e0ad92bd0cb94fa72f0c16253436d0ae
Content length78 bytes
Content preview (first 800 chars) 
No Corporate registrations found for "HPSP" in public databases or web search.

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/1659/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/1659/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/1659/receipt.json