Sok: blockchain decentralization

L Zhang, X Ma, Y Liu - arxiv preprint arxiv:2205.04256, 2022‏ - arxiv.org
Blockchain introduces decentralized trust in peer-to-peer networks, advancing security and
democratizing systems. Yet, a unified definition for decentralization remains elusive. Our …

Notus: Dynamic Proofs of Liabilities from Zero-knowledge {RSA} Accumulators

J **n, A Haghighi, X Tian… - 33rd USENIX Security …, 2024‏ - usenix.org
Proofs of Liabilities (PoL) allow an untrusted prover to commit to its liabilities towards a set of
users and then prove independent users' amounts or the total sum of liabilities, upon queries …

The design principle of blockchain: An initiative for the sok of soks

LS Zhang - arxiv preprint arxiv:2301.00479, 2023‏ - arxiv.org
Blockchain, also coined as decentralized AI, has the potential to empower AI to be more
trustworthy by creating a decentralized trust of privacy, security, and audibility. However …

MiniLedger: Compact-Sized Anonymous and Auditable Distributed Payments

P Chatzigiannis, F Baldimtsi - European Symposium on Research in …, 2021‏ - Springer
In this work we present MiniLedger, a distributed payment system which not only guarantees
the privacy of transactions, but also offers built-in functionalities for various types of audits by …

[PDF][PDF] Yes, I do: Marrying blockchain applications with GDPR

B Schellinger, F Völter, N Urbach, J Sedlmeir - e-government, 2022‏ - academia.edu
Due to blockchains' intrinsic transparency and immutability, blockchain-based applications
are challenged by privacy regulations, such as the EU General Data Protection Regulation …

Derecho: privacy pools with proof-carrying disclosures

J Beal, B Fisch - Proceedings of the 2024 on ACM SIGSAC Conference …, 2024‏ - dl.acm.org
A privacy pool enables clients to deposit units of a cryptocurrency into a shared pool where
ownership of deposited currency is tracked via a system of cryptographically hidden records …

Enabling regulatory compliance and enforcement in decentralized anonymous payment

L Xue, D Liu, J Ni, X Lin, XS Shen - IEEE Transactions on …, 2022‏ - ieeexplore.ieee.org
Decentralized anonymous payment (DAP) enables users to directly transfer
cryptocurrencies privately without passing through a central authority. Anonymous …

PACTA: An IoT data privacy regulation compliance scheme using TEE and blockchain

Y Zhang, J Yang, H Lei, Z Bao, N Lu… - IEEE Internet of …, 2023‏ - ieeexplore.ieee.org
Despite the existence of data privacy regulations, such as the general data protection
regulation (GDPR), data leaks in the Internet of Things (IoT) still occur and cause significant …

Broken proofs of solvency in blockchain custodial wallets and exchanges

K Chalkias, P Chatzigiannis, Y Ji - International Conference on Financial …, 2022‏ - Springer
Abstract Since the Mt. Gox Bitcoin exchange collapse in 2014, a number of custodial
cryptocurrency wallets offer a form of financial solvency proofs to bolster their users' …

Proof of assets in the diem blockchain

P Chatzigiannis, K Chalkias - … , AIBlock, AIHWS, AIoTS, CIMSS, Cloud S&P …, 2021‏ - Springer
A great challenge for distributed payment systems is their compliance with regulations, such
as anti-money laundering, insolvency legislation, countering the financing of terrorism and …