Chain of custody receipt

Source #80932

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: ANTHROPIC, PBC — Department of State contract 19PCRD26K4661 ($19.0K)
Original URLhttps://www.usaspending.gov/award/CONT_AWD_19PCRD26K4661_1900_-NONE-_-NONE-/
PublicationUSASpending.gov
Source typecontract
Date2026-02-11
EntityAnthropic
Captured2026-10-03T13:49:14.929Z UTC
Hash computed at2026-10-03T13:49:14.929Z UTC
SHA-256c335a71b119a5455c44765899f1abe79972d244cfdd9e6f4d448b3f7870a1925
Content length445 bytes
Content preview (first 800 chars) 
{
  "internal_id": 355216877,
  "Award ID": "19PCRD26K4661",
  "Recipient Name": "ANTHROPIC, PBC",
  "Award Amount": 18960,
  "Description": "CLAUDE AI",
  "Awarding Agency": "Department of State",
  "Awarding Sub Agency": "Department of State",
  "Start Date": "2026-02-11",
  "End Date": "2026-03-12",
  "awarding_agency_id": 315,
  "agency_slug": "department-of-state",
  "generated_internal_id": "CONT_AWD_19PCRD26K4661_1900_-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/80932/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/80932/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/80932/receipt.json