Chain of custody receipt

Source #1735

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: ImmigrationOS — cross-reference insights
Original URL(none — typed-API result with no web URL)
PublicationAI Research Pass
Source typegovernment_disclosure
Date2026
EntityImmigrationOS
Captured2026-04-07T04:25:52.236Z UTC
Hash computed at2026-04-07T04:25:52.236Z UTC
SHA-256f1c4559259d2af0e26ea05dec853e270924f668c791eecb9d81eadc3c7e1441c
Content length1,322 bytes
Content preview (first 800 chars)
```json
{
  "facts": [
    {
      "text": "ImmigrationOS does not appear in SEC filings, indicating it is likely not a publicly traded company and may be privately held or a product/platform rather than a corporate entity",
      "date": null,
      "confidence": "inferential"
    },
    {
      "text": "No USASpending contract records suggest ImmigrationOS has not received direct federal government contracts, which is notable for an immigration-related technology tool",
      "date": null,
      "confidence": "inferential"
    },
    {
      "text": "Absence from corporate registration databases suggests 'ImmigrationOS' may be a product name or trade name rather than the legal entity name of the organization behind it",
      "date": null,
      "confidence": "inferential"
    }…

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/1735/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/1735/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/1735/receipt.json