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Volition

1 min read
Pronunciation
[voh-lish-uhn]
Analogy
Like a hybrid car that lets you switch between electric and gasoline modes depending on efficiency or range needs.
Definition
A hybrid rollup mode in Optimism that allows users to choose between Optimistic (fraud-proof) and Validity (ZK-proof) settlement for each transaction, balancing cost and security.
Key Points Intro
Volition empowers users to select their preferred proof system per transaction.
Key Points

Dual mode: supports both fraud proofs and validity proofs

User choice: select cost-optimized or fast-finality path

Smart router: directs TX through chosen proof pipeline

Security: inherits both Optimistic and ZK guarantees

Example
A dApp submits high-value transactions via ZK-proof for instant finality, while batching low-value micro-tx as Optimistic to save fees.
Technical Deep Dive
The Volition architecture splits execution: Optimistic path writes calldata to L1, starts fraud-proof window; Validity path invokes ZK-prover, posts succinct proof. Sequencer contracts route calls based on user flag and handle state root commitments accordingly.
Security Warning
Complex dual-pipeline increases attack surface and requires robust sequencer logic.
Caveat
Experimental feature with evolving toolchain and limited production deployments.
Related Terms
Fraud Proof
Validity Proof

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