LIVE ON TESTNET — CHAIN 42069

The Quantum-Resistant Ethereum L2

First Layer 2 secured by NIST FIPS 204 post-quantum cryptography. ML-DSA-65 + ML-DSA-87 via native EVM precompiles, ERC-4337 smart accounts, session keys, MetaMask Snap, and Celestia DA.

--
Blocks
L3+L5
NIST Security
98%
Gas Savings
89/89
Tests Pass
5
Sig Modes

Built for the post-quantum future

65

ML-DSA-65 Precompile

NIST FIPS 204 Level 3 post-quantum signatures at 0x0101. 1,952B public keys and 3,309B signatures verified on-chain in 45K gas.

CORE
87

ML-DSA-87 Precompile

Maximum NIST Level 5 security (AES-256 equivalent) at 0x0102. 2,592B keys and 4,627B signatures for highest-value assets.

NEW
HY

5 Signature Modes

0x01 Hybrid-65, 0x02 PQC-only, 0x03 Session Key, 0x04 Hybrid-87, 0xFF ECDSA fallback. Right security for every transaction type.

CORE
SK

Session Keys

98% cost reduction with ECDSA session keys for daily TX. Hybrid reserved for high-value ops. $0.001 vs $0.05 per TX on Blob DA.

CORE
AA

ERC-4337 Smart Accounts

UUPS-upgradeable accounts with SSTORE2/KeyBlob. Batch execution, Paymaster sponsorship, emergency PQC transition with 24h timelock.

CORE
DA

Celestia Alt-DA

90% cost reduction via Celestia data availability. $0.005/hybrid TX vs $0.05 on EIP-4844 Blob. Required for mainnet deployment.

NEW
MM

MetaMask Snap

PQC key generation, hybrid signing, and verification in MetaMask. 10 RPC methods for seamless Web3 integration.

NEW
W3

Web Wallet

Standalone PQC wallet with key generation, transfers, and all signing modes. Mobile-first, zero installation.

NEW
OP

OP Stack Foundation

Optimism's battle-tested OP Stack with custom op-geth. Full Ethereum equivalence, L1 settlement on Sepolia.

CORE

Architecture

User Layer
Web Wallet + MetaMask Snap + dApp + TypeScript SDK
|
PQC Layer
ML-DSA-65 (0x0101) + ML-DSA-87 (0x0102) + Smart Accounts + Session Keys
|
QuantumShield L2 (Chain 42069)
Custom op-geth + ERC-4337 EntryPoint + Paymaster
|
OP Stack Bridge
op-node + op-batcher + op-proposer
|
Data Availability
EIP-4844 Blob (testnet) / Celestia (mainnet)
|
Ethereum L1 (Sepolia)
Settlement + state roots

Quantum resistance at every layer

Post-quantum cryptography integrated at the EVM execution layer through custom precompiles. Two security levels (NIST L3 and L5) provide defense-in-depth against future quantum attacks.

Session keys make quantum-resistant transactions economically viable. Celestia DA reduces signature data costs by 90%.

ML-DSA-65 Level 3 / 0x0101
ML-DSA-87 Level 5 / 0x0102
Standard NIST FIPS 204
Sig Modes 0x01-04 + 0xFF
Session Key TX 66B / ~$0.001
Crypto Library Cloudflare CIRCL

Everything you need

W

Web Wallet

Generate PQC keys, sign transactions, and manage your quantum-resistant account from any browser.

Open Wallet
D

dApp Dashboard

Account management, session keys, transfers, and contract interaction in a full-featured dashboard.

Launch dApp
E

Block Explorer

Blockscout-powered explorer for blocks, transactions, and smart contracts on QuantumShield L2.

Open Explorer

Connect to QuantumShield L2

RPC Endpoint

https://quantumshield.xyz:8545
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Chain ID

42069
View on Explorer

Testnet Faucet

0.1 ETH per request (1hr cooldown)
Get Testnet ETH

PQC Precompiles

0x0101 (ML-DSA-65, L3) + 0x0102 (ML-DSA-87, L5)
Check Status in dApp

Smart Contracts

Factory: 0xe7f1725E...0512 | Paymaster: 0x9fE46736...052c
View on Explorer

Block Explorer

https://scan.quantumshield.xyz
Open Explorer

Ready for Q-Day?

The quantum threat is accelerating. QuantumShield L2 is live and ready for testing.