Asking what is Cosmos Hub comes down to one fact: it is the first chain built with the Cosmos SDK, a public proof-of-stake blockchain that uses ATOM as its staking and governance token. It also routes Inter-Blockchain Communication (IBC) transfers between chains.
Core technology and blockchain architecture
The Cosmos stack has three main components. The Cosmos SDK is a modular framework for building application-specific chains, with modules for staking, governance and state management. More than 200 chains run on it in production. CometBFT is the consensus engine, based on the Tendermint algorithm. IBC is the interoperability protocol, and its IBC v2 redesign ships as IBC Eureka, which extends connectivity to Ethereum.
The Hub is a sovereign chain, and the SDK, CometBFT and IBC are broader than the Hub itself. As of 15 October 2026, the Hub ran gaia v28.3.1, Cosmos SDK v0.53.4, CometBFT v0.38.23, ibc-go v10.7.0 and wasmd v0.60.9. Gaia v29 was approved by Proposal #1059 with 99.41% of votes and was scheduled for block 33,618,500 on 28 October 2026. It removes the x/params module.
Primary use cases and real-world applications
ATOM has three functions on the Hub: holders stake it to secure the network, it pays transaction fees, and holders vote on governance proposals. Delegators can stake with any of the 180 active validators and share in their rewards and slashing exposure.
The SDK is also used by companies in banking, finance, SaaS and AI for interbank networks, asset tokenization and business automation. On 9 September 2026, Cosmos announced the Cosmos Partner Network with seventeen partners to help banks with tokenized deposits and digital asset initiatives.
Who is behind Cosmos Hub and where is it based?
The team is not anonymous. Jae Kwon created Tendermint and published its whitepaper in 2014. He says he co-founded All in Bits, Inc. (Tendermint Inc.) with Ethan Buchman that year, which started the Cosmos project. Zarko Milosevic helped refine the Tendermint consensus algorithm. Zaki Manian, a founding team member and Tendermint director, resigned in February 2020.
Founding year and project history
The Cosmos whitepaper, A Network of Distributed Ledgers, was published in 2016. The Interchain Foundation opened its fundraiser on 6 April 2017, and the ATOM sale raised $17 million, according to CoinDesk. The Cosmos Hub mainnet launched on 13 March 2019. In February 2020, Tendermint Inc. split, and Interchain GmbH was formed in Berlin. In February 2022, All in Bits rebranded as Ignite. In September 2025, Interchain Labs was renamed Cosmos Labs. On 22 June 2026, the annual council election made Biba Homsy President of the Interchain Foundation.
Legal entities and jurisdictions
- Interchain Foundation (Interchain Stiftung): A Swiss non-profit foundation registered in Zug, Switzerland, with commercial registration number CHE-199.569.367. One ICF careers page lists Baar as its location, which conflicts with the Zug address.
- Cosmos Labs: A wholly owned ICF subsidiary that leads product, engineering and growth for Cosmos. Its co-CEOs are Barry Plunkett and Maghnus Mareneck. Its offices are listed in New York City, Berlin and Seoul, and Cosmos Labs Korea is a Seoul-based subsidiary.
- Interchain GmbH: A German limited liability company and ICF subsidiary. A 2023 court filing says it employed about 35 software engineers and operations staff.
- All in Bits, Inc. (Tendermint, later Ignite): A Delaware corporation headquartered in Berkeley, California, according to a 2023 court filing.
- NewTendermint, Inc.: A Delaware corporation led by Jae Kwon as CEO since May 2022.
The team therefore operates across Switzerland, Germany, the United States and South Korea. The jurisdiction of Cosmos Labs itself was not confirmed in the sources reviewed.
Tokenomics
Supply and distribution
ATOM has no fixed maximum supply. The genesis allocation recommendation set 10% of total ATOM to the Interchain Foundation, 10% to All in Bits (Tendermint) and 5% to seed contributors. The rest went to the public fundraiser and strategic contributors.
The CoinStats snapshot shows a total supply and circulating supply of 539,300,488 ATOM. The market cap is $808.86M (rank #111), and the 24h volume is $30.03M. The all-time high is $43.84, and the current price is 96.58% below it.
Inflation and deflation mechanics
Inflation is dynamic. It is set by the bonded ratio relative to a target, rising when the bonded ratio is below target and falling when it is above. Proposal 848, approved on 25 November 2023, cut maximum inflation from 20% to 10%. Current inflation ranges from a 7% floor to a 10% ceiling. A proposal to cut the floor to 0% (Proposal 868) failed in January 2024.
Community drafts from 2026 propose a 4% to 8% band, but these remain proposals. The direction of Cosmos Labs' Tokenomics Phase 2 is a revenue module (x/revenue) and a governance-set security budget, rather than a fixed inflation rate. The Hub has no programmatic buyback and no protocol fee burn.
The unbonding period is 21 days.
ATOM 2.0 and governance history
ATOM 2.0 (Proposal 82) was a monolithic tokenomics overhaul. It was rejected in November 2022 and never implemented as a whole.
Consensus and network security
The Hub uses CometBFT, a Byzantine fault-tolerant consensus engine. CometBFT remains secure as long as fewer than one-third of validators fail arbitrarily. A block commit requires signatures from more than two-thirds of total validator weight, and validators take turns proposing blocks. Blocks have instant finality, so no confirmation depth or reorg risk applies.
The Hub is secured by 180 active validators ranked by bonded stake. The Liquid Staking Module lets staked ATOM be liquid-staked without waiting for unbonding.
Interchain Security
Interchain Security is a shared-security model in which Hub validators validate consumer chains, and consumer chains pay for that security by distributing part of their revenue to Hub token holders. Cosmos Labs has stated that the model did not achieve product-market fit and is being deprecated. Governance removed the provider module after the remaining consumer chains offboarded, with voting closing on 1 September 2026.
Key partnerships and ecosystem integrations
- Interchain Foundation: Funds the Cosmos SDK, Cosmos EVM, IBC Protocol, Skip:Go and CosmWasm.
- Linux Foundation Decentralized Trust: Cosmos and the Interchain Foundation joined as members on 24 September 2026.
- Zeeve: A partnership announced on 5 August 2026 for tokenized deposits and digital assets.
- Injective: A USDC migration moved $12.7 million to Injective, and the migration is live within Keplr.
Competitive advantages and value proposition
Cosmos SDK chains are sovereign and application-specific, and they receive native interoperability through IBC. IBC is permissionless and can carry any data encoded as bytes. According to the Interchain Foundation, IBC Eureka provides faster-than-finality bridging between Cosmos and Ethereum.
Current development activity and roadmap
- Releases: Gaia v28.2.0 was tested on testnet in September 2026, and v28.1 was running on 179 of 180 active validators by the 16 September validator call. Gaia v29 was scheduled for 28 October 2026.
- Cosmos Labs structure: Restructured in April 2026 into Ecosystem, Open Source and Enterprise pillars.
- IBC Eureka: Shipped in April 2025, with plans to expand to Solana and layer-2 networks.
- Hub roadmap: A public roadmap was targeted for the end of September 2026, but the timeline slipped. The roadmap focuses on programmable RWA index products over IBC and direct issuance of tokenized assets.
- Cosmos Stack 2026: Targets include ibc-go v10 and IBC v2, IBC Solidity, and a CosmWasm Ethereum light client.