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arxiv: 1710.09437 · v4 · pith:UHJDZIPHnew · submitted 2017-10-25 · 💻 cs.CR

Casper the Friendly Finality Gadget

classification 💻 cs.CR
keywords casperproofconsensusfinalityintroducesystemworkadditional
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We introduce Casper, a proof of stake-based finality system which overlays an existing proof of work blockchain. Casper is a partial consensus mechanism combining proof of stake algorithm research and Byzantine fault tolerant consensus theory. We introduce our system, prove some desirable features, and show defenses against long range revisions and catastrophic crashes. The Casper overlay provides almost any proof of work chain with additional protections against block reversions.

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Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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  4. CoBRA: A Universal Strategyproof Confirmation Protocol for Quorum-based Proof-of-Stake Blockchains

    cs.CR 2025-03 unverdicted novelty 6.0

    CoBRA extends any quorum-based SMR protocol to tolerate 1/3 Byzantine plus 1/3 rational validators via finalization changes and adds a recovery mechanism for higher fault levels with client reimbursement.

  5. Adversarial procurement in blockchains

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  6. StakeDag: Stake-based Consensus For Scalable Trustless Systems

    cs.DC 2019-07 unverdicted novelty 5.0

    StakeDag introduces a stake-weighted consensus protocol S_φ for leaderless asynchronous DAGs to achieve pBFT by treating stake as validating weights in a system separating users and validators.

  7. Properties of Decentralized Consensus Technology -- Why not every Blockchain is a Blockchain

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    The authors propose Decentralized Consensus Technology (DCT) as an umbrella term for systems with decentralization, trustlessness and eventual consensus, positioning blockchain as one implementation of decentralized l...