Chain of custody receipt

Source #80787

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: RAFAEL ADVANCED DEFENSE SYSTEMS LTD. — Department of Defense contract N0016423FJ170 ($9.50M)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_N0016423FJ170_9700_N0016423DJQ15_9700/
PublicationUSASpending.gov
Source typecontract
Date2023-09-26
EntityRafael Advanced Defense Systems
Captured2026-10-03T13:47:18.349Z UTC
Hash computed at2026-10-03T13:47:18.349Z UTC
SHA-2566502c9f76431148dc36db03bca755800666be0e33c0e6515ce49d13acc5aabf3
Content length507 bytes
Content preview (first 800 chars) 
{
  "internal_id": 309760991,
  "Award ID": "N0016423FJ170",
  "Recipient Name": "RAFAEL ADVANCED DEFENSE SYSTEMS LTD.",
  "Award Amount": 9495864,
  "Description": "TOPLITE EOS 2U UPGRADE KITS (NAVY)",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Department of the Navy",
  "Start Date": "2023-09-26",
  "End Date": "2026-08-31",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_N0016423FJ170_9700_N0016423DJQ15_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/80787/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80787/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80787/receipt.json