2026-10-03T23:39:10Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:27862 2026-10-02T17:40:21Z ddc:004 open_access

StakeNote: A Proof-Of-Stake Protocol for CryptoNote Payments David, Bernardo Karakostas, Dimitris Proof-of-Stake anonymity CryptoNote ring signatures This work proposes StakeNote, a distributed ledger protocol that combines Proof-of-Stake (PoS) with privacy and anonymity preserving payments. The protocol combines Ouroboros Praos, a provably secure PoS protocol, with CryptoNote, a privacy-preserving payment system based on ring signatures which has been widely used in practice. We prove that StakeNote inherits the security guarantees of Ouroboros Praos and the privacy guarantees of CryptoNote. We also demonstrate its practicality via a proof of concept implementation of its cryptographic components, showing that block signing requires less than 25 ms and eligibility proofs are approx. 3 KB for anonymity sets of size 16. Finally, we discuss heuristic enhancements that potentially increase privacy and enable dynamic participation. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Bernardo David and Dimitris Karakostas 2026 Is Part Of LIPIcs, Volume 395, 8th Conference on Advances in Financial Technologies (AFT 2026) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/LIPIcs.AFT.2026.8 urn:nbn:de:0030-drops-278622 https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.AFT.2026.8 eng https://creativecommons.org/licenses/by/4.0/legalcode