Quantum Private and Auditable Ledger (QPADL)
J.P. Morgan Chase & Co.
Abstract
This J.P. Morgan report details the QPADL architecture, a distributed ledger solution designed to meet the requirements of regulated financial institutions in a post-quantum landscape. The paper proposes a framework where auditability and privacy coexist through a combination of quantum-resistant zero-knowledge proofs and permissioned consensus protocols. The architecture is modular, allowing for the substitution of cryptographic modules as new standards in PQC emerge. The methodology focuses on enterprise-grade performance, addressing the throughput limitations often associated with quantum-safe signatures in high-frequency financial environments. The report provides case studies on how such ledgers could function within existing regulatory structures, maintaining compliance while protecting sensitive financial data from future quantum decryption threats.
Key Findings
- 1Modular cryptography is essential for enterprise-grade financial ledgers.
- 2Auditability and privacy can be effectively balanced using quantum-safe zero-knowledge proofs.
- 3Permissioned networks allow for performance optimizations not feasible in public chains.
- 4Standardization of PQC is critical for institutional adoption.
Topics
Citation
BibTeX
@misc{quantumprivate2026,
title = {Quantum Private and Auditable Ledger (QPADL)},
author = {J.P. Morgan Chase & Co.},
year = {2026},
howpublished = {\url{https://www.jpmorganchase.com/about/technology/blog/quantum-resistant-distributed-ledger}},
}Knowledge Explorer
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