# Technical Architecture

Empowered by [Chain Abstraction on NEAR Protocol](https://docs.near.org/build/chain-abstraction/what-is), Allstake not only brings native (re)staking to all chains, but also makes it possible to build AVSs with multi-chain signature capability from day one.

Allstake Protocol comprises three core components:

1. **Allstake Hub**, built on NEAR Protocol, which manages all the AVSs and operators, and tracks all deposit, delegation and withdrawal states of (re)stakers.
2. **Client Contracts** on all client chains including EVM chains like Ethereum and non-EVM chains like Solana, allow native stake, delegate and withdraw by (re)stakers on these client chains. As there're no smart contracts on Bitcoin, the (re)staking logic is implemented with Chain Signature, which we'll share in more details later.
3. **Cross-Chain Interoperability** between Allstake Hub and Client Chain Contracts that can (1) sync staking and delegation states from client chains to Allstake Hub, and (2) perform undelegate, slash and reward distribution on client chains with Chain Signature transaction initiated by Allstake Hub.

<figure><img src="/files/FMtfW7YsAJ2YrN5wyNZk" alt=""><figcaption></figcaption></figure>


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