Chain of custody receipt

Source #80926

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.

Title	USASpending.gov: GOOGLE PUBLIC SECTOR LLC — Department of Defense contract W519TC25FA214 ($30.88M)
Original URL	https://www.usaspending.gov/award/CONT_AWD_W519TC25FA214_9700_HC105023D0002_9700/
Publication	USASpending.gov
Source type	`contract`
Date	2025-09-12
Entity	Google
Captured	2026-10-03T13:49:13.064Z UTC
Hash computed at	2026-10-03T13:49:13.064Z UTC
SHA-256	`a51808c4e679cf25a4aa7fab83daf74bdaa883249afc442f80dabfb1b55d013e`
Content length	645 bytes

Content preview (first 800 chars)

{
  "internal_id": 353493634,
  "Award ID": "W519TC25FA214",
  "Recipient Name": "GOOGLE PUBLIC SECTOR LLC",
  "Award Amount": 30876153.12,
  "Description": "TASK ORDER AWARD AGAINST JWCC MULTIPLE-AWARD IDIQ CONTRACT HC105023D0002 TO GOOGLE PUBLIC SECTOR LLC FOR GOOGLE IL 2, 4, 5, AND 6 (SECRET)  CLOUD PLATFORM CLOUD COMPUTING SERVICES.",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Department of the Army",
  "Start Date": "2025-09-12",
  "End Date": "2026-09-11",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_W519TC25FA214_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:

Take the URL field and the original document content.
Concatenate url + '\n' + content and SHA-256 it.
Compare to the SHA-256 row above.

Or POST the candidate content to /source/80926/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80926/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80926/receipt.json