Cosmos - The foundation for a new token economy

Cosmos is an ecosystem of blockchains that can scale and interoperate with each other. Before Cosmos, blockchains were siloed and unable to communicate with each other. They were hard to build and could only handle a small amount of transactions per second. Cosmos solves these problems with a new technical vision. In order to understand this vision, we need to go back to the fundamentals of blockchain technology.

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Cosmos solves today's hardest blockchain problems


Tendermint BFT is a byzantine fault tolerant consensus engine that powers Cosmos Proof-of-Stake.


Cosmos SDK is a modular framework for building interoperable, application-specific blockchains.


Interblockchain Communication (IBC) is a TCP/IP-like messaging protocol for blockchains.

Cosmos is a network of independent parallel blockchains that are each powered by classical BFT consensus algorithms like Tendermint.

The first blockchain in this network will be the Cosmos Hub. The Cosmos Hub connects to many other blockchains (or zones) via a novel inter-blockchain communication protocol. The Cosmos Hub tracks numerous token types and keeps record of the total number of tokens in each connected zone. Tokens can be transferred from one zone to another securely and quickly without the need for a liquid exchange between zones, because all inter-zone coin transfers go through the Cosmos Hub.

This architecture solves many problems that the blockchain space faces today, such as application interoperability, scalability, and seamless upgradability. For example, zones derived from Bitcoind, Go-Ethereum, CryptoNote, ZCash, or any blockchain system can be plugged into the Cosmos Hub. These zones allow Cosmos to scale infinitely to meet global transaction demand. Zones are also a great fit for a distributed exchange, which will be supported as well.

Cosmos is not just a single distributed ledger, and the Cosmos Hub isn’t a walled garden or the center of its universe. We are designing a protocol for an open network of distributed ledgers that can serve as a new foundation for future financial systems, based on principles of cryptography, sound economics, consensus theory, transparency, and accountability.