both. To improve upon its privacy and confidentiality capabilities, Fabric has added support for private data and is working on zero knowledge proofs (ZKP) available in the future. More on this as it becomes features and documentation in the v1.2 release of Hyperledger Fabric: ### 2.1 New major features • Private Data Collections: A way to keep certain data/transactions confidential among a subset of channel individual commands. • CouchDB: How to set up a CouchDB data store (which allows for rich queries). • Private data: Shows how to set up a collection using BYFN. • Query certificates based on various filter

both. To improve upon its privacy and confidentiality capabilities, Fabric has added support for private data and is working on zero knowledge proofs (ZKP) available in the future. More on this as it becomes of Hyperledger Fabric: ## New major features - Private Data Collections [https://hyperledger-fabric.readthedocs.io/en/release-1.2/private-data/private-data.html]: A way to keep certain data/transactions on this topic which can be found here [https://hyperledger-fabric.readthedocs.io/en/release-1.2/private-data-arch.html]. - Service Discovery [https://hyperledger-fabric.readthedocs.io/en/release-1.2/discovery-overview

permissioned platform, enables confidentiality through its channel architecture and private data feature. In channels, participants on a Fabric network establish a sub-network where every member has visibility preserving the privacy and confidentiality of both. Private data allows collections between members on a channel, allowing much of the same protection as channels without the maintenance overhead of creating approved the upgrade. • Simpler endorsement policy and private data collection updates Fabric lifecycle allows you to change an en- dorsement policy or private data collection configuration without having to