Chain of custody receipt

Source #80874

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 Energy contract DEAC0507OR23242 ($393.51M)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_DEAC0507OR23242_8900_-NONE-_-NONE-/
PublicationUSASpending.gov
Source typecontract
Date2007-05-01
EntityTennessee Valley Authority
Captured2026-10-03T13:48:11.401Z UTC
Hash computed at2026-10-03T13:48:11.401Z UTC
SHA-25660030ca13d5699e4710ab7f339959699b7b00ef2e404fe1364ebf56cfc20a5d4
Content length512 bytes
Content preview (first 800 chars) 
{
  "internal_id": 295476155,
  "Award ID": "DEAC0507OR23242",
  "Recipient Name": "TENNESSEE VALLEY AUTHORITY",
  "Award Amount": 393507089.08,
  "Description": "ELECTRIC UTILITY SERVICE FOR OAK RIDGE RESERVATION",
  "Awarding Agency": "Department of Energy",
  "Awarding Sub Agency": "Department of Energy",
  "Start Date": "2007-05-01",
  "End Date": "2020-09-30",
  "awarding_agency_id": 930,
  "agency_slug": "department-of-energy",
  "generated_internal_id": "CONT_AWD_DEAC0507OR23242_8900_-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/80874/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80874/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80874/receipt.json