Chain of custody receipt

Source #80768

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: US ARMY CORPS OF ENGINEER — Department of State contract SIAA05LMAQM191 ($1.19M)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_SIAA05LMAQM191_1900_-NONE-_-NONE-/
PublicationUSASpending.gov
Source typecontract
Date2005-09-30
EntityUS Army
Captured2026-10-03T13:47:02.551Z UTC
Hash computed at2026-10-03T13:47:02.551Z UTC
SHA-256012d43167d41426bcb3084766674c5c7100a2f648ba61b3ed330b3f61f96a16e
Content length498 bytes
Content preview (first 800 chars) 
{
  "internal_id": 312354361,
  "Award ID": "SIAA05LMAQM191",
  "Recipient Name": "US ARMY CORPS OF ENGINEER",
  "Award Amount": 1194600,
  "Description": "RESEARCH AND DEVELOPMENT OF ENGINEERING SYSTEMS",
  "Awarding Agency": "Department of State",
  "Awarding Sub Agency": "Department of State",
  "Start Date": "2005-09-30",
  "End Date": "2008-01-07",
  "awarding_agency_id": 315,
  "agency_slug": "department-of-state",
  "generated_internal_id": "CONT_AWD_SIAA05LMAQM191_1900_-NONE-_-NONE-"
}

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/80768/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80768/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80768/receipt.json