Chain of custody receipt

Source #60287

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: Northrop Grumman — USASpending contracts (no results)
Original URL(none — typed-API result with no web URL)
PublicationSearch Scope Note
Source typecontract
Date2026
EntityNorthrop Grumman
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-24T02:26:42.723Z UTC
SHA-2569d1247aae5bd99ccf83858a2e7255af702e0c7bab69287bc1135d9bee98fa1b7
Content length219 bytes
Content preview (first 800 chars) 
No USASpending contracts found for "Northrop Grumman" 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/60287/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/60287/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/60287/receipt.json