Chain of custody receipt

Source #80866

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: SYNTROPY SYSTEMS, LLC — Department of Defense contract W56KGU21C0036 ($1.91M)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_W56KGU21C0036_9700_-NONE-_-NONE-/
PublicationUSASpending.gov
Source typecontract
Date2021-06-24
EntitySyntropy
Captured2026-10-03T13:48:00.301Z UTC
Hash computed at2026-10-03T13:48:00.301Z UTC
SHA-256a3bf3d8a92096304131a0f7f7c159ffb49fc6b09bee1092679c25d98e3cdcd0a
Content length494 bytes
Content preview (first 800 chars) 
{
  "internal_id": 349058754,
  "Award ID": "W56KGU21C0036",
  "Recipient Name": "SYNTROPY SYSTEMS, LLC",
  "Award Amount": 1905446.64,
  "Description": "SBIR PHASE II- FIRM FIXED PRICE AWARD.",
  "Awarding Agency": "Department of Defense",
  "Awarding Sub Agency": "Department of the Army",
  "Start Date": "2021-06-24",
  "End Date": "2023-09-07",
  "awarding_agency_id": 1173,
  "agency_slug": "department-of-defense",
  "generated_internal_id": "CONT_AWD_W56KGU21C0036_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/80866/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80866/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80866/receipt.json