Taiko (TAIKO)

A decentralized, Ethereum-equivalent ZK-Rollup.

Basics

• Based in:
• Started in / Announced on: Q1 2022
• Testnet release: 28-12-2022
• Mainnet release: "early 2024" is projected (9-3-2023).

Audits & Exploits

• Bug bounty program can be found [insert here].

Governance

• Claims to be decentralized straight away, but later also mentiones upgradability, so it is still a bit unclear (21-12-2022):

"Taiko aims to go live with a fully decentralized (and permissionless) proposer and prover set. The protocol will not enshrine or allowlist any parties; anyone will be able to perform those duties. Further, Taiko plans to have a minimal protocol-defined coordination scheme for proposers/provers. The current plan is for it to be leaderless. Certain measures like smart contract upgradeability will remain in place until things are battle-tested. This is guided by a security-minded approach: without proxy-based upgradability, users’ assets can face significant bug risks. Controlled upgradability is one of the levers that will be handed over to the DAO at some point."

Technology

• Whitepaper or docs can be found here.
• Code can be viewed here. Claims to be fully open source (2-12-2022).
• Is an Eth maxi (21-12-2022): "Emulating Ethereum for Taiko means everything aligns towards Ethereum: the ZK-EVM, other Ethereum base layer architecture, philosophical considerations, community, and ~vibes~."
• Consensus mechanism:
• Algorithm:
• Virtual Machine:
• Development language used:

Transaction Details

• Capacity (TPS):
• Latency:

How it works

• From their blog (10-10-2022):

"Taiko aims to be a type-1 ZK-EVM, which prioritizes perfect EVM/Ethereum-equivalence over ZK-proof generation speed. Taiko consists of three main parts: the ZK-EVM circuits (for proof generation), the L2 rollup node (for managing the rollup chain), and the protocol on L1 (for connecting these two parts together for rollup protocol verification).

Blocks in the Taiko L2 blockchain consist of collections of transactions that are executed sequentially. New blocks can be appended to the chain to update its state, which can be calculated by following the protocol rules for the execution of the transactions.

Block submission is split into two parts:

1. Block proposal: A block is proposed, with the block data published on Ethereum, and the block appended to the proposed blocks list in the TaikoL1 contract. The protocol ensures the block is immutable at this point, meaning the block execution is deterministic, and so anyone can calculate the post-execution chain state. We refer to a block and all enclosed transactions at such point as finalized. A distinguishable feature in a proposed block on L1 is that there may be invalid transactions that will be skipped over by Taiko L2 nodes. This feature allows for fault-tolerance while multiple blocks are proposed simultaneously.
2. Block verification: Because all proposed blocks are deterministic, blocks can be proven in parallel, since all intermediate states between blocks are known. Once a proof is verified for the block and its correctly-linked parent block is on-chain finalized, we mark the block as on-chain finalized.

A fundamental requirement of the protocol is that all data that is necessary to reconstruct the current state, and thus to create and append new blocks, is publicly available on Ethereum. Further, provers can generate proofs for a block using only public data on Ethereum. It is these facts, relying on Ethereum public data and giving all would-be participants a fair playing field, that makes Taiko’s L2 decentralized."

Roadmap

• Can be found here.

Team, Funding and Partners

Team

• Full team can be found [here].
• Built by Taiko Labs

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