Tendermintbased

Tendermint-based refers to blockchain networks that use the Tendermint consensus engine as the backbone for consensus and finality. Tendermint Core provides a Byzantine fault-tolerant consensus algorithm designed for fast, deterministic finality, and it is complemented by the Application Blockchain Interface (ABCI), which decouples the consensus layer from the application logic. This separation allows developers to implement their application state machine independently while reusing the same underlying consensus engine.

In a Tendermint-based network, a set of validators runs Tendermint Core to agree on the next block. The protocol proceeds in rounds with a proposer selecting a block, followed by prevote and precommit voting stages. If a supermajority of valid votes is reached in a round, the block is committed. Because finality is deterministic, once a block is committed, it is final; there is no probabilistic fork risk as in some proof-of-work systems. Tendermint tolerates up to f Byzantine validators if at least n = 3f + 1 validators participate.

A key feature is the ABCI, which enables any deterministic application state machine to be plugged into the Tendermint consensus. This modular design supports a wide range of use cases and languages, since the application logic can be implemented off-chain or in a separate process.

Tendermint-based blockchains are prominent in the Cosmos ecosystem and in many projects built with the Cosmos SDK, but the model is also used outside Cosmos. While offering high performance and fast finality, Tendermint-based systems require a well-managed validator set and robust network conditions to maintain liveness and security.