Chain of custody receipt

Source #80793

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.

Title	USASpending.gov: BOOZ ALLEN HAMILTON INC — Department of Veterans Affairs contract 36C10B21N10070021 ($1.37B)
Original URL	https://www.usaspending.gov/award/CONT_AWD_36C10B21N10070021_3600_VA11816D1007_3600/
Publication	USASpending.gov
Source type	`contract`
Date	2021-05-17
Entity	Booz Allen Hamilton
Captured	2026-10-03T13:47:25.179Z UTC
Hash computed at	2026-10-03T13:47:25.179Z UTC
SHA-256	`2c423d6b20a5c1341f5eea582c618a3e7973d986722453999edd846b6e9584ff`
Content length	605 bytes

Content preview (first 800 chars)

{
  "internal_id": 279969328,
  "Award ID": "36C10B21N10070021",
  "Recipient Name": "BOOZ ALLEN HAMILTON INC",
  "Award Amount": 1365285599.63,
  "Description": "TRANSFORMATION TWENTY-ONE TOTAL TECHNOLOGY NEXT GENERATION (T4NG) TASK ORDER - BENEFITS INTEGRATED DELIVERY",
  "Awarding Agency": "Department of Veterans Affairs",
  "Awarding Sub Agency": "Department of Veterans Affairs",
  "Start Date": "2021-05-17",
  "End Date": "2026-08-07",
  "awarding_agency_id": 561,
  "agency_slug": "department-of-veterans-affairs",
  "generated_internal_id": "CONT_AWD_36C10B21N10070021_3600_VA11816D1007_3600"
}

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:

Take the URL field and the original document content.
Concatenate url + '\n' + content and SHA-256 it.
Compare to the SHA-256 row above.

Or POST the candidate content to /source/80793/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80793/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80793/receipt.json