✦ Arbitrum Stylus
LIVE // SEPOLIA

Passkey-
Secured
Web3
Identity.

Your biometric signs. The chain decides. No seed phrases, no custody — just your fingerprint and Arbitrum Stylus P-256 ECDSA on-chain.

View on GitHub →
Signature
P-256 ECDSA
Runtime
Stylus WASM
Auth
WebAuthn L2
Transaction FlowLIVE
👆Biometric🔏P-256 Sign⚡Stylus💎Fee Skim🛡️Policy🚀ExecuteP·GWEB3
ArbitrumArbitrum
EthereumEthereum
StylusStylus
OptimismOptimism
PolygonPolygon
RustRust
SafeSafe
ReactReact
ArbitrumArbitrum
EthereumEthereum
StylusStylus
OptimismOptimism
PolygonPolygon
RustRust
SafeSafe
ReactReact
ArbitrumArbitrum
EthereumEthereum
StylusStylus
OptimismOptimism
PolygonPolygon
RustRust
SafeSafe
ReactReact
ArbitrumArbitrum
EthereumEthereum
StylusStylus
OptimismOptimism
PolygonPolygon
RustRust
SafeSafe
ReactReact
◆ How It Works

Every layer. Secured.

PasskeyGuard stacks WebAuthn biometrics with on-chain P-256 verification — zero weak links, zero custody.

01
🔐 Authentication

Biometric Signing

Sign every transaction with Face ID or Touch ID. Your passkey never leaves your device's secure enclave — hardware-level security by default.

WebAuthn L2
02
⚡ On-Chain Verification

Stylus P-256 Verifier

P-256 ECDSA signatures verified on-chain via Arbitrum Stylus WASM. 10× cheaper than an equivalent Solidity implementation.

Arbitrum Stylus
03
🛡️ Policy Engine

Smart Spend Limits

Set per-transaction spending limits in Solidity. Every transfer is policy-checked before the signature is ever accepted on-chain.

PolicyManager.sol
04
🔒 Zero Trust

No Custody. No Backend.

No private keys, no seed phrases, no custodian. Your biometric is the only key. The chain is the only authority that matters.

Self-Sovereign
05
💎 Monetization

Premium Subscription

Unlock 5× transaction limits with a 30-day on-chain subscription. Fees route directly to the treasury wallet — verifiable on Arbiscan.

SubscriptionManager.sol
Subscription Tiers

Choose Your Access Level

Unlock 5× transaction limits with a 30-day premium subscription. All fees route on-chain to the treasury.

Free
● Active
Free
No cost, ever
Per Tx
1,000 ETH
Daily
5,000 ETH
  • P-256 ECDSA on-chain signing
  • WebAuthn biometric auth
  • Base transaction limits
  • Policy manager access
  • Arbitrum Sepolia testnet
Connect Wallet
Most Popular
Premium
ETH0.001/ 30 days
≈ Arbitrum Sepolia testnet
Per Tx
5,000 ETH
Daily
25,000 ETH
  • Everything in Free
  • 5× transaction limits
  • 5× daily spending cap
  • Priority policy processing
  • Treasury fee routing
  • Subscription NFT proof
PASSKEYGUARD // SOVEREIGN WEB3 IDENTITY

Sign blockchain transactions with your biometric. P-256 ECDSA verified on-chain via Arbitrum Stylus. No seed phrases. No custody. No compromise.

RUST + STYLUS WASMARBITRUM SEPOLIA

Stylus Telemetry

NETWORK TARGET:
Arbitrum Sepolia // Chain 421614
SIGNATURE SCHEME:
P-256 SECP256R1 ON-CHAIN
P-256 ECDSASignature Scheme
Stylus WASMOn-chain Runtime
WebAuthn L2Authentication
EIP-4337Account Abstraction
BUILT EXCLUSIVELY FOR ARBITRUM STYLUS // NON-ERC721 SOVEREIGN DESIGN
PASSKEYGUARD © 2026 // PASSKEY-SECURED WEB3 IDENTITY PROTOCOL
PASSKEYGUARD