Permissionless
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Related Articles from SNS
Fast Deterministically Safe Proof-of-Work Consensus
arXiv:2512.19968v3 Announce Type: replace Abstract: Permissionless blockchains achieve consensus while allowing unknown nodes to join and leave the system at any time. They typically come in two flavors: proof of work (PoW) and proof of stake (PoS), and both are vulnerable to attacks. PoS protocols suffer from long-range attacks, wherein attackers alter execution history at little cost, and PoW protocols are vulnerable to attackers with enough computational power to subvert execution history.
On the Incentive Compatibility of Block Propagation in Bitcoin
Announce Type: new Abstract: Bitcoin is permissionless and does not rely on any central administrator, which gives it strong censorship resistance. At the same time, it is important to incentivize miners to behave in ways that align with the interests of the system as a whole. This paper asks whether miners are individually incentivized to propagate blocks, one of the most fundamental processes in Bitcoin.