Overview
What is an Unstoppable Rollup?
An Unstoppable Rollup is a rollup that cannot be interrupted without compromising the L1. No exit windows, no security councils, no admin keys.
Ethereum rollups secure tens of billions in user assets, yet almost all can be halted or censored by a handful of admin keys. Even the most "decentralized" rollups today can be stopped by fewer than 20 people.
Facet is the only rollup that cannot be stopped. If Ethereum is running, Facet continues running. Period.
The Problem with Traditional Rollups
Today's rollups have a fundamental vulnerability—they can be stopped by a small group of people:
Disable the Sequencer - A single multisig transaction can halt block production
Overwhelm Forced Inclusion - Gas limits drop 99%, creating functional stoppage
Disable Forced Inclusion Entirely - Contract upgrades can remove censorship resistance
These aren't theoretical. In 2024 alone, Linea halted block production, Blast blocked force-inclusion, and Soneium censored specific tokens.
The Facet Solution
Facet eliminates all forms of admin control through four fundamental architectural decisions:
Immutable Sequencing - Transactions go directly to an immutable L1 address
Native Gas Token - FCT is minted algorithmically, no bridge admins
ZK Fault Proofs - Immutable proof system with no overrides
Fork-Based Upgrades - Changes only through user choice
Fork-Based Upgrades: True User Sovereignty
Traditional rollups force upgrades on users—15 signatures change the protocol, and everyone must accept it or exit. Facet upgrades work like Ethereum L1: through forks and social consensus.
How It Works:
Deploy new system with updated rules
Users decide which version to follow
Old version continues running forever
No one can force you to upgrade. Ever.
Just like Ethereum Classic still exists alongside Ethereum, multiple Facet versions can coexist based on user choice.
Why This Matters
For Users:
Your assets are safe—no admin can freeze withdrawals
Guaranteed inclusion—if Ethereum runs, your transaction goes through
True ownership—no one can take away your ability to transact
For Developers:
Build without permission—deploy whatever you want
No admin approval needed
Design with version flexibility for true decentralization
For Ethereum:
A rollup that actually inherits L1's security properties
No compromise on decentralization
Proof that unstoppable rollups are possible
Learn More
For a comprehensive technical deep dive, read the Facet Whitepaper.
For a visual overview of how Facet components fit together, see the Architecture Overview.
Key Repositories
facet-node: https://github.com/0xFacet/facet-node — Consensus/derivation client
facet-geth: https://github.com/0xFacet/facet-geth — Execution client
zk-fault-proofs: https://github.com/0xFacet/zk-fault-proofs — Rollup.sol + proposer/challenger
facet-kona: https://github.com/0xFacet/facet-kona — Rust STF/derivation
facet-sdk: https://github.com/0xFacet/facet-sdk — TypeScript SDK
facet-sol: https://github.com/0xFacet/facet-sol — Foundry helpers
FIPs: https://github.com/0xFacet/FIPs — Governance proposals
FCT metrics: https://fct.fyi/ (repo: https://github.com/0xFacet/fct-fyi)
Full list and descriptions: Important Repositories.
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