# Quantum Resistant Ledger (QRL) Quantum Readiness Report

> Quantum Resistant Ledger has a QRI score of 98.5/100 and is assessed at Stage 4 (Migration Complete / Quantum-Ready) with medium evidence confidence.

Evaluation date: 2026-08-20. Review status: draft. Evaluated scope: Current production QRL Layer 1 mainnet and native QRL asset as of 2026-08-20, including transaction authorization, address exposure, consensus, state integrity, P2P, wallet/custody, migration, governance, and assurance. The legacy Ethereum ERC-20 token, external wrappers or bridges, and future Project Zond are excluded from production scope and considered only as caveats or roadmap evidence..

QRL mainnet is a post-quantum-native Proof-of-Work chain whose native addresses and transactions use mandatory XMSS hash-based signatures. Documentation, protocol definitions, source code, and mainnet observations support that no classical native ownership namespace or fallback transaction path exists. Native-asset migration is therefore complete by design, including for critical on-chain wallets. Proof-of-Work does not introduce validator-signature authentication, and no current quantum-vulnerable bridge, proof system, or other critical dependency was identified in the supplied record. Overall confidence is Medium because production XMSS audit coverage is old, the recent audit concerns future ML-DSA libraries, and detailed state-integrity and P2P documentation was not supplied. These gaps remain assurance limitations rather than identified current quantum-critical blockers.

## Core resources

- [Quantum Resistant Ledger QRI report](https://qrindex.org/projects/quantum-resistant-ledger/): Human-readable assessment with score, stage, evidence, blockers, risks, and assurance notes.
- [Quantum Resistant Ledger structured report data](https://qrindex.org/projects/quantum-resistant-ledger/report.json): Complete report as JSON for deterministic machine processing.
- [QRI methodology](https://qrindex.org/methodology/): Scoring model, evidence handling, readiness stages, confidence, assurance, and report status.
- [All QRI project reports](https://qrindex.org/llms.txt): Score-ranked index of every published project assessment.
- [Quantum Resistant Ledger official website](https://www.theqrl.org): Project-maintained website.
- [Quantum Resistant Ledger source repository 1](https://github.com/theQRL/QRL): Project source code referenced by QRI.



## Evidence sources

- [Evidence source 1](<https://docs.theqrl.org/>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 2](<https://github.com/theQRL/QRL/blob/master/src/qrl/protos/qrl.proto>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 3](<https://explorer.theqrl.org/>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 4](<https://github.com/theQRL/audits>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 5](<https://etherscan.io/token/0x697beac28B09E122C4332D163985e8a73121b97F>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 6](<https://www.theqrl.org/>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 7](<https://github.com/theQRL/QRL/blob/master/src/qrl/crypto/xmss.py>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 8](<https://github.com/theQRL/go-qrllib>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 9](<https://github.com/theQRL/qrllib>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 10](<https://github.com/theQRL/validate-qrl-address>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 11](<https://www.halborn.com/audits/qrl-quantum-resistant-ledger/qrl-quantum-resistant-ledger-37d3f1>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 12](<https://github.com/theQRL/qips>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 13](<https://www.theqrl.org/blog/qrl-primary-report-2024/QRL_Primary_Report_2024.pdf>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 14](<https://github.com/theQRL/qrypto.js>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 15](<https://www.cryptunit.com/documents/34/QRL_whitepaper.pdf>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 16](<https://github.com/theQRL/QRL>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 17](<https://support.ledger.com/article/360019184453-zd>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 18](<https://medium.com/the-quantum-resistant-ledger/qrl-token-migration-begins-b0d5b53f697f>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 19](<https://etherscan.io/token/0x697beac28b09e122c4332d163985e8a73121b97f>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 20](<https://www.theqrl.org/a-visionary-future-proof-blockchain-with-unparalleled-security/the-qrl-explained.pdf>): Public source cited by the Quantum Resistant Ledger QRI assessment.
- [Evidence source 21](<https://github.com/theQRL/QRL/releases/tag/v2.0.0>): Public source cited by the Quantum Resistant Ledger QRI assessment.