Chain of custody receipt

Source #3421

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.

TitleWikipedia article on SpaceX Starshield
Original URLhttps://www.sec.gov/Archives/edgar/data/1780312/000095017022005212/asts-20211231.htm
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date—
EntitySpaceX
Captured2026-04-09T14:20:41.358Z UTC
Hash computed at2026-04-09T14:20:41.358Z UTC
SHA-25617d74313b177f5cf901ae93f67136fe55eb9fe20616b0aa124699d03304cd9a4
Content length376,127 bytes
Content preview (first 800 chars)
10-K

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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/3421/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3421/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3421/receipt.json