Chain of custody receipt

Source #80876

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: TENNESSEE VALLEY AUTHORITY — Department of Defense contract N6945018F0056 ($7.30M)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_N6945018F0056_9700_N6945017G0106_9700/
PublicationUSASpending.gov
Source typecontract
Date2018-06-12
EntityTennessee Valley Authority
Captured2026-10-03T13:48:11.435Z UTC
Hash computed at2026-10-03T13:48:11.435Z UTC
SHA-256958e9ce4220f8ef5407c6a67d18c32946df11762e29386a13084d0f5cea34138
Content length494 bytes
Content preview (first 800 chars) 
{
  "internal_id": 311230634,
  "Award ID": "N6945018F0056",
  "Recipient Name": "TENNESSEE VALLEY AUTHORITY",
  "Award Amount": 7298480,
  "Description": "IGF::OT::IGF UESC NSA MID-SOUTH",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Department of the Navy",
  "Start Date": "2018-06-12",
  "End Date": "2019-07-07",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_N6945018F0056_9700_N6945017G0106_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:

  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/80876/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80876/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80876/receipt.json