Chain of custody receipt

Source #1820

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: US Air Force — cross-reference insights
Original URL(none — typed-API result with no web URL)
PublicationAI Research Pass
Source typegovernment_disclosure
Date2026
EntityUS Air Force
Captured2026-04-07T04:30:23.045Z UTC
Hash computed at2026-04-07T04:30:23.045Z UTC
SHA-25631c535c8fcf7bcf92280295747c58b79d4ec79743a7a78d4c94dd96bd0e6997f
Content length1,076 bytes
Content preview (first 800 chars)
```json
{
  "facts": [
    {
      "text": "Initial searches across USASpending contracts, lobbying disclosures, court records, and parliamentary records returned no results for 'US Air Force' - this likely indicates a search methodology issue rather than absence of data, as the US Air Force is a major federal entity with extensive public contracting and lobbying activity",
      "date": null,
      "confidence": "inferential"
    },
    {
      "text": "The lack of results suggests searches may need to use alternative entity names such as 'Department of the Air Force', 'USAF', 'Air Force Research Laboratory', or specific Air Force commands and bases to retrieve relevant records",
      "date": null,
      "confidence": "inferential"
    },
    {
      "text": "For comprehensive…

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/1820/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/1820/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/1820/receipt.json