Chain of custody receipt

Source #80924

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 FA861108C2896 ($3.65B)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_FA861108C2896_9700_-NONE-_-NONE-/
PublicationUSASpending.gov
Source typecontract
Date2008-01-01
EntityX Corp
Captured2026-10-03T13:49:08.782Z UTC
Hash computed at2026-10-03T13:49:08.782Z UTC
SHA-2569fe133d5aaf3404a458345df211c7865ee46766bab431c4b7313551736b0f471
Content length529 bytes
Content preview (first 800 chars)
{
  "internal_id": 298553471,
  "Award ID": "FA861108C2896",
  "Recipient Name": "RTX CORPORATION",
  "Award Amount": 3648685783.01,
  "Description": "F119 ENGINE LONG TERM SUSTAINMENT PROGRAM FOR THE RAPTOR ENGINE (SPARE)",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Department of the Air Force",
  "Start Date": "2008-01-01",
  "End Date": "2022-05-31",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_FA861108C2896_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/80924/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80924/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80924/receipt.json