Chain of custody receipt

Source #3400

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.

TitleUS Law Explained analysis
Original URLhttps://guides.loc.gov/historical-company-research/public
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2024-01-01
EntityEDGAR Business Office
Captured2026-04-09T14:18:04.254Z UTC
Hash computed at2026-04-09T14:18:04.254Z UTC
SHA-256bc868d6ece2a105b3f888583c13a31f6891f58d7f836979fd93c2af7a50ecc09
Content length88 bytes
Content preview (first 800 chars) 
EDGAR contains over 25 million documents as of recent reports, with volume growing daily

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/3400/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3400/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3400/receipt.json