An excellent introduction to building enterprise (permissioned) blockchain networks was recenly published by IBM, with a foreword by yours truly.
Download a free PDF of the book here.
The book, by experienced blockchain practioners, Michael Bradley, David Gorman, Matt Lucas, and Matthew Golby-Kirk walks-through important governance, security and development issues for blockchain projects.
At Clause we have many years of blockchain experience, and have completed several projects that integrate smart legal contracts with distributed ledgers. We even have a no-code integration with Hyperledger Fabric 1.4.x (including IBM Blockchain Platform) via a dedicated App and Flow Step. You can read more about our blockchain capabilities here.
If you are interested in exploring the intersection between legal documents and blockchain, please don't hesitate to get in touch.