Chain of custody receipt

Source #3408

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.

TitleSEC 10-K filing
Original URLhttps://www.sec.gov/submit-filings/filer-support-resources/how-do-i-guides/understand-utilize-edgar-ciks-passphrases-access-codes
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date—
EntityThe Mosaic Company
Captured2026-04-09T14:18:48.801Z UTC
Hash computed at2026-04-09T14:18:48.801Z UTC
SHA-2565435b1a02445b3693c027a2c39c35d879becef66e316ef779e1cfaa03155b45c
Content length115 bytes
Content preview (first 800 chars) 
The Mosaic Company is the world's leading producer and marketer of concentrated phosphate and potash crop nutrients

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/3408/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3408/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3408/receipt.json