Hubble is a token transfer solution to improve Ethereum throughput from 20 transactions per second to 2600.
People sumit transfers to a coordinator, who then submits transactions and the state root of the balances update to a Ethereum contract.
The contract does not validate either the correctness of the balances update or the authenticity of the sender.
Anyone can trigger the dispute methods of the contract and penalize the coordinator by burning the assets they staked beforehand. The contract rolls back to the last state when the balance was correct.
- Optimism: Hubble does not support virtual machine, ... yet.
- ZK rollups: Both improve throughput but Hubble is ZK free. No zero-knowledge moon math, only boring EVM at work.
- ZK optimistic rollups: Hubble does not address privacy.
Hubble has the highest highest throughput compared with all above applications, since
- We use BLS signature aggregation to reduce the size to store data on chain
- We optimize for simple transfer
- Mass Migration: Users can migrate their tokens to other layer 2 solutions without withdraw to and deposit from layer 1 again.
- Create2Transfer: Users can onboard Hubble without going through layer 1. The coordinator can register pubkeys for them and they can acquire tokens from holders who are already in Hubble.
npm install
npm run generatenpm run test