Chain of custody receipt

Source #80783

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.

TitleUSASpending.gov: ELBIT SYSTEMS OF AMERICA - NIGHT VISION LLC — Department of Defense contract M6785425F1018 ($116.40M)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_M6785425F1018_9700_M6785424D1013_9700/
PublicationUSASpending.gov
Source typecontract
Date2025-02-28
EntityElbit Systems
Captured2026-10-03T13:47:17.263Z UTC
Hash computed at2026-10-03T13:47:17.263Z UTC
SHA-25665a1c7ed071c05c77ca69aa658fee1e0434066e9447bdf57f341484b9bb08b1b
Content length528 bytes
Content preview (first 800 chars) 
{
  "internal_id": 309319653,
  "Award ID": "M6785425F1018",
  "Recipient Name": "ELBIT SYSTEMS OF AMERICA - NIGHT VISION LLC",
  "Award Amount": 116399453.12,
  "Description": "SQUAD BINOCULAR NIGHT VISION GOGGLE SYSTEMS",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Department of the Navy",
  "Start Date": "2025-02-28",
  "End Date": "2026-12-18",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_M6785425F1018_9700_M6785424D1013_9700"
}

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/80783/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80783/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80783/receipt.json