Chain of custody receipt

Source #80931

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: GOOGLE PUBLIC SECTOR LLC — Department of Defense contract HC105025F0041 ($1.56M)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_HC105025F0041_9700_HC105023D0002_9700/
PublicationUSASpending.gov
Source typecontract
Date2025-08-07
EntityGoogle
Captured2026-10-03T13:49:13.158Z UTC
Hash computed at2026-10-03T13:49:13.158Z UTC
SHA-2565490a3c214722cec75b0884495390b4352e579d25a4bd6fc31a934ca60414757
Content length499 bytes
Content preview (first 800 chars) 
{
  "internal_id": 351854826,
  "Award ID": "HC105025F0041",
  "Recipient Name": "GOOGLE PUBLIC SECTOR LLC",
  "Award Amount": 1560000,
  "Description": "ENTERPRISE CLOUD OFFERINGS",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Defense Information Systems Agency",
  "Start Date": "2025-08-07",
  "End Date": "2026-08-06",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_HC105025F0041_9700_HC105023D0002_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/80931/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80931/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80931/receipt.json