PrivChain operates as an intermediary layer that interfaces between users and the blockchain network.

When a transaction is initiated, PrivChain encrypts sensitive data components using advanced cryptographic techniques, such as hierarchical identity-based encryption.

This encryption process allows necessary public information to remain open for nodes to verify, while sensitive details are encrypted and traceable only by authorized parties.

The middleware can be integrated into existing blockchain architectures through a simple API, enabling users to choose which parts of their transactions are encrypted based on the level of privacy they require.

PrivChain offers a pragmatic balance between privacy and transparency, allowing users to gain confidence in their data security without sacrificing the core blockchain benefits of immutability and consensus.

Unlike complex privacy protocols, PrivChain is straightforward to implement and scalable across various blockchain platforms.

Technically, the solution leverages existing encryption methodologies that are proven at scale, adapted for blockchain use.

Minimal changes to existing blockchain protocols are needed, enabling faster adoption.

The cost involves developing the middleware and setting up pilot integrations, manageable with a seed round.

Competition exists in privacy protocol development, but PrivChain's unique middleware approach positions it distinctively.