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Lyudmila Kovalchuk

Binomial distribution with delay in analysis and parametrization of Ouroboros Praos proof of stake blockchain protocol

Yuri Bespalov,Lyudmila Kovalchuk,Hanna Nelasa,Prof Roman Oliynykov

March/2025, Probability in the Engineering and Informational Sciences

OUROBOROS

Probability of Double Spend Attack for PoS Consensus with Ouroboros Praos Slot Leader Election Procedure

Lyudmila Kovalchuk,Prof Roman Oliynykov,Mariia Rodinko

June/2024, CECC '24

OUROBOROS PROOF-OF-STAKE

Reputation-Based Incentive Model for Decentralized Analysis of Development Proposals

Lyudmila Kovalchuk,Mariia Rodinko,Prof Roman Oliynykov

September/2023, IDAACS 2023

REPUTATION

Models for Generation of Proof Forest in ZK-SNARK Based Sidechains

Yuri Bespalov,Lyudmila Kovalchuk,Hanna Nelasa,Prof Roman Oliynykov,Rob Viglione

March/2023, Cryptography

SIDECHAINS ZKSNARKS

Probability of double spend attack for network with non-zero time delay

Lyudmila Kovalchuk,Mariia Rodinko,Prof Roman Oliynykov,Dmytro Kaidalov,Andrii Nastenko

December/2022

PROOF-OF-WORK

Parallel Contests for Crowdsourcing Reviews: Existence and Quality of Equilibria

Georgios Birmpas,Lyudmila Kovalchuk,Philip Lazos,Prof Roman Oliynykov

September/2022, AFT '22

INCENTIVES

Game theory analysis of incentive distribution for prompt generation of the proof tree in zk-SNARK based sidechains

Yuri Bespalov,Lyudmila Kovalchuk,Hanna Nelasa,Prof Roman Oliynykov,Alberto Garoffolo

September/2022, ICCST '22

GAME-THEORY

A Game-Theoretic Analysis of Delegation Incentives in Blockchain Governance

Lyudmila Kovalchuk,Mariia Rodinko,Prof Roman Oliynykov

September/2022, CBT '22

GOVERNANCE INCENTIVES

Security analysis of slot leaders election procedure for PoS-based blockchains with on-chain randomness generation

Lyudmila Kovalchuk,Dmytro Kaidalov,Mariia Rodinko,Prof Roman Oliynykov

June/2022, CECC '22

GRINDING PROOF-OF-STAKE

Probability Models of Distributed Proof Generation for zk-SNARK-Based Blockchains

Yuri Bespalov,Alberto Garoffolo,Lyudmila Kovalchuk,Hanna Nelasa,Prof Roman Oliynykov

November/2021, Mathematics 2021 9(23)

BLOCKCHAIN ZKSNARKS

Blockchain Technologies: Probability of Double-Spend Attack on a Proof-of-Stake Consensus

Mikolaj Karpinski,Lyudmila Kovalchuk,Roman Kochan,Prof Roman Oliynykov,Mariia Rodinko,Lukasz Wieclaw

September/2021, Sensors 2021, 21(19), 6408

CONSENSUS PROOF-OF-STAKE

Probability of double spend attack for network with non-zero synchronization time

Lyudmila Kovalchuk,Mariia Rodinko,Prof Roman Oliynykov,Dmytro Kaidalov,Andrii Nastenko

June/2021, CECC '21

PROOF-OF-WORK

Models of distributed proof generation for ZK-SNARK-based blockchains

Yuri Bespalov,Alberto Garoffolo,Lyudmila Kovalchuk,Hanna Nelasa,Prof Roman Oliynykov

October/2020, Theoretical and Applied Cryptography 2020, Minsk, Belarus

BLOCKCHAIN MERKLE ZKSNARKS

Upper Bound Probability of Double Spend Attack on SPECTRE

Lyudmila Kovalchuk,Mariia Rodinko,Prof Roman Oliynykov

September/2020, CryBlock '20

DAG PROOF-OF-WORK

Decreasing Security Threshold Against Double Spend Attack in Networks with Slow Synchronization

Lyudmila Kovalchuk,Dmytro Kaidalov,Andrii Nastenko,Mariia Rodinko,Oleksiy Shevtsov,Prof Roman Oliynykov

April/2019, CryBlock'19

BITCOIN BLOCKCHAIN CONSENSUS

Comparison of Block Expectation Time for Various Consensus Algorithms

Dmytro Kaidalov,Lyudmila Kovalchuk,Andrii Nastenko,Mariia Rodinko,Oleksiy Shevtsov,Prof Roman Oliynykov

November/2018, Radio Electronics, Computer Science, Control (Ukranian Journal)

BLOCKCHAIN CONSENSUS DISTRIBUTED

Number of Confirmation Blocks for Bitcoin and GHOST Consensus Protocols on Networks with Delayed Message Delivery: Extended Abstract

Lyudmila Kovalchuk,Dmytro Kaidalov,Andrii Nastenko,Oleksiy Shevtsov,Mariia Rodinko,Prof Roman Oliynykov

June/2018, CryBlock'18

BITCOIN BLOCKCHAIN SCALABILITY

A Proposal for An Ethereum Classic Treasury System

Dmytro Kaidalov,Lyudmila Kovalchuk,Andrii Nastenko,Mariia Rodinko,Oleksiy Shevtsov,Prof Roman Oliynykov

March/2017

BLOCKCHAIN CRYPTOCURRENCY ETHEREUM-CLASSIC