Chain of custody receipt

Source #510

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: Invariant - court record
Original URL(none — typed-API result with no web URL)
PublicationPublic Record Research
Source typecourt_document
Date2024
EntityInvariant
Captured2026-04-05T09:09:27.810Z UTC
Hash computed at2026-04-05T09:09:27.810Z UTC
SHA-25665bed9329d6662d519774ae29bdb80e70d7d53b58ecb2dfeaa73fd08845fd082
Content length499 bytes
Content preview (first 800 chars) 
Research into court records related to 'Invariant' yields limited results, as 'Invariant' is primarily a mathematical/scientific term and also appears as a business name for multiple entities. Without a specific company, individual, or case identifier, definitive court record matches cannot be established. The term appears in various business registrations but no major litigation involving a company specifically named 'Invariant' has achieved widespread public documentation in my training data.

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/510/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/510/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/510/receipt.json