Chain of custody receipt

Source #80743

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: NVIDIA CORP — Department of Justice contract 15F06718P0007711 ($1.2K)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_15F06718P0007711_1549_-NONE-_-NONE-/
PublicationUSASpending.gov
Source typecontract
Date2018-09-20
EntityNvidia
Captured2026-10-03T13:46:56.027Z UTC
Hash computed at2026-10-03T13:46:56.027Z UTC
SHA-25615f3268e85b1e76e2f59f94cffbcd99d19b108fc8ce251e09522f6c6b76e33a2
Content length545 bytes
Content preview (first 800 chars)
{
  "internal_id": 278255237,
  "Award ID": "15F06718P0007711",
  "Recipient Name": "NVIDIA CORP",
  "Award Amount": 1200,
  "Description": "GPU CARD NEEDED TO RUN AND TEST THE LATEST SYSTRAN AND LANGUAGE WEAVER MACHINE TRANSLATION.",
  "Awarding Agency": "Department of Justice",
  "Awarding Sub Agency": "Federal Bureau of Investigation",
  "Start Date": "2018-09-20",
  "End Date": "2018-09-30",
  "awarding_agency_id": 252,
  "agency_slug": "department-of-justice",
  "generated_internal_id": "CONT_AWD_15F06718P0007711_1549_-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/80743/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80743/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80743/receipt.json