Chain of custody receipt

Source #54684

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: Optimal Investment Services — Lobbying disclosures (no results)
Original URL(none — typed-API result with no web URL)
PublicationSearch Scope Note
Source typegovernment_disclosure
Date2026
EntityOptimal Investment Services
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T11:41:08.723Z UTC
SHA-256b637e554f5a1a8afcc7d098037616ef835bbd6154378402d9797f03e1235d249
Content length229 bytes
Content preview (first 800 chars) 
No Lobbying disclosures found for "Optimal Investment Services" 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/54684/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/54684/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/54684/receipt.json