Chain of custody receipt

Source #1795

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.

TitleAI Analysis: Invariant — cross-reference insights
Original URL(none — typed-API result with no web URL)
PublicationAI Research Pass
Source typegovernment_disclosure
Date2026
EntityInvariant
Captured2026-04-07T04:28:23.434Z UTC
Hash computed at2026-04-07T04:28:23.434Z UTC
SHA-256aa2cd2179b6d51ad399ac32c5318dfab940c43f6bcc10ae0922f048ba4b86214
Content length1,359 bytes
Content preview (first 800 chars)
```json
{
  "facts": [
    {
      "text": "No federal government contracts were found for 'Invariant' in USASpending database searches, suggesting the entity either does not engage in federal contracting, operates under a different legal name, or is not a US-based government contractor",
      "date": null,
      "confidence": "inferential"
    },
    {
      "text": "No lobbying disclosure records were found for 'Invariant', indicating the entity either does not engage in registered lobbying activities, operates below disclosure thresholds, or uses a different registered name for lobbying purposes",
      "date": null,
      "confidence": "inferential"
    },
    {
      "text": "The absence of results across all four major public databases (contracts, lobbying, court records…

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/1795/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/1795/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/1795/receipt.json