The Elder protocol is built using the Cosmos-SDK on top of the CometBFT consensus engine. This architecture enables Elder to deliver a modular, interoperable, and secure blockchain platform for next-generation rollups and decentralized applications.

Elder Architecture Docs

Official Elder architecture documentation

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Cosmos-SDK and CometBFT are the core technologies that power Elder, enabling developers to build scalable, interoperable, and secure blockchains with ease.

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Cosmos-SDK

Cosmos-SDK is a framework for building blockchain applications in the Cosmos ecosystem. It’s designed to simplify the process of creating custom blockchains that can interoperate with one another.

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Key Features

  • Modularity: Build blockchain applications using pre-built modules like staking, governance, or custom modules tailored to specific needs.
  • Interoperability: Through the Inter-Blockchain Communication (IBC) protocol, chains can communicate and transfer assets or data securely.
  • Flexibility: Define custom business logic in Go, allowing for highly specialized blockchains.
  • Community: Backed by a vibrant developer community contributing to its ecosystem.

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CometBFT (formerly Tendermint Core)

CometBFT is a battle-tested Byzantine Fault Tolerant (BFT) consensus engine that ensures all nodes in a network agree on the state of the blockchain. It’s the underlying consensus mechanism for Cosmos SDK-based blockchains.

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Key Features

  • BFT Consensus: Uses a variant of Practical Byzantine Fault Tolerance for fast finality and network security.
  • Modular Design: Separates the consensus mechanism from the application layer, allowing for reuse across different applications.
  • State Sync: New nodes can quickly sync to the latest state without downloading the entire history, enhancing scalability.
  • Light Clients: Supports light client proofs for efficient blockchain verification on resource-constrained devices.

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Together in Action

  • Cosmos Hub: The first blockchain built with Cosmos-SDK using CometBFT for consensus, acting as the center of the Cosmos ecosystem.
  • Interoperability: Chains built with Cosmos-SDK can leverage CometBFT’s consensus for secure cross-chain transactions via IBC.
Cosmos-SDK and CometBFT are key technologies enabling developers to build interoperable, scalable, and secure blockchains. They provide a foundation for innovative blockchain networks, integrating IBC for communication and surpassing traditional development hurdles.
For more details, see the official Elder architecture documentation.