Chain of custody receipt

Source #80915

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: MICROSOFT CORPORATION — Department of Defense contract HC102824F0586 ($139.36M)
Original URL	https://www.usaspending.gov/award/CONT_AWD_HC102824F0586_9700_HC102817D0001_9700/
Publication	USASpending.gov
Source type	`contract`
Date	2024-06-01
Entity	Microsoft
Captured	2026-10-03T13:49:05.492Z UTC
Hash computed at	2026-10-03T13:49:05.492Z UTC
SHA-256	`f53a9df96a91ad3947c51e7eb29d1728519d2ac9cf5c4e46bf8ad27ea5679d1c`
Content length	621 bytes

Content preview (first 800 chars)

{
  "internal_id": 306493381,
  "Award ID": "HC102824F0586",
  "Recipient Name": "MICROSOFT CORPORATION",
  "Award Amount": 139358471.78,
  "Description": "MICROSOFT CONSULTING SERVICES (MCS) AND UNIFIED SUPPORT FOR THE U.S. NAVY / PROGRAM EXECUTIVE OFFICE DIGITAL AND ENTERPRISE SERVICES (PEO) DIGITAL",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Defense Information Systems Agency",
  "Start Date": "2024-06-01",
  "End Date": "2027-05-31",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_HC102824F0586_9700_HC102817D0001_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/80915/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80915/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80915/receipt.json