"Factom technology secures data for private and public organizations by publishing encrypted data or a cryptographically unique fingerprint of the data to Factom’s immutable, distributed Blockchain" https://factom.com/

the immutability, is unique.

"Harmony is a new blockchain base document technology that works with your existing imaging or document management solution to create a secure, transparent, unalterable record for the final loan documents." https://www.factom.com/products/harmony

This still has a currency, Factoid or something. I don't know that anyone has created a consensus mechanism that doesn't use a coin