Chain of custody receipt

Source #80923

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: RTX CORPORATION — Department of Defense contract N0001921C0011 ($4.87B)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_N0001921C0011_9700_-NONE-_-NONE-/
PublicationUSASpending.gov
Source typecontract
Date2020-12-01
EntityX Corp
Captured2026-10-03T13:49:08.766Z UTC
Hash computed at2026-10-03T13:49:08.766Z UTC
SHA-2568395e4f4cf1b1be4db2512822c3387091ac259458d5c2d08c03a227cf419ef3a
Content length462 bytes
Content preview (first 800 chars) 
{
  "internal_id": 309497350,
  "Award ID": "N0001921C0011",
  "Recipient Name": "RTX CORPORATION",
  "Award Amount": 4865962075.84,
  "Description": "FY21 PBL2",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Department of the Navy",
  "Start Date": "2020-12-01",
  "End Date": "2030-02-28",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_N0001921C0011_9700_-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/80923/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80923/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80923/receipt.json