Chain of custody receipt

Source #80922

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 N0001923C0030 ($6.64B)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_N0001923C0030_9700_-NONE-_-NONE-/
PublicationUSASpending.gov
Source typecontract
Date2023-09-28
EntityX Corp
Captured2026-10-03T13:49:08.747Z UTC
Hash computed at2026-10-03T13:49:08.747Z UTC
SHA-256a3e6b971c1b837386cda06fc87bd9e78b0961d748d39d894f8f22ed9654b89d5
Content length471 bytes
Content preview (first 800 chars) 
{
  "internal_id": 309498669,
  "Award ID": "N0001923C0030",
  "Recipient Name": "RTX CORPORATION",
  "Award Amount": 6644057263.33,
  "Description": "LOT 18 PNR/TOOLING",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Department of the Navy",
  "Start Date": "2023-09-28",
  "End Date": "2028-12-31",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_N0001923C0030_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/80922/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80922/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80922/receipt.json