Chain of custody receipt

Source #3409

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 filing exhibit
Original URLhttps://www.colonialfilings.com/blog/what-is-an-edgar-filing/
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2006
EntityThe Mosaic Company
Captured2026-04-09T14:18:48.809Z UTC
Hash computed at2026-04-09T14:18:48.809Z UTC
SHA-256de3750c07750bc9308d54a29edd8f7525acbf9b802adb18ae5c4a16509c75443
Content length132 bytes
Content preview (first 800 chars) 
The company announced a $28 million expansion of its Esterhazy, Saskatchewan, potash facility scheduled to be completed in fall 2006

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/3409/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3409/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3409/receipt.json