Chain of custody receipt

Source #136

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.

TitleResearch: SpaceX - Federal Contracts via USASpending.gov
Original URLhttps://www.usaspending.gov/search/?hash=eyJmaWx0ZXJzIjp7ImtleXdvcmQiOiJTcGFjZVgifX0
PublicationPublic Record Research
Source typediscovery_scope_note
Date2024
EntitySpaceX
Captured2026-04-05T07:55:19.507Z UTC
Hash computed at2026-04-05T07:55:19.507Z UTC
SHA-2569ede98efe2fd6a863aa2b2aac1ffe00290c50c58b5ac97c4ae789c9b6e8b296b
Content length609 bytes
Content preview (first 800 chars)
Space Exploration Technologies Corp. (SpaceX) is a major federal contractor, receiving billions in government contracts primarily from NASA, the Department of Defense, and the U.S. Space Force. USASpending.gov, the official public database for federal spending, documents these awards. SpaceX's federal contract portfolio includes crewed and cargo transportation to the International Space Station, national security space launch services, and development contracts for lunar landing systems. The company has become one of the largest recipients of federal space-related contract dollars over the past decade.

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/136/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/136/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/136/receipt.json