OnChain Sentinel

Non-custodial · Zero-trust · Co-signing

Own your keys. Define the rules.

Evaluate every transaction before it hits the chain.

Get Early Access Read the PGTAIL Paper

Hardware-bound identity
Policy co-approval
Contextual fraud scoring
Immutable audit receipts

OnChain Sentinel — guarding every transaction with policy and proof

Cold Wallets != Context

Keys are safe; behavior is not. We add policy, reputation, and risk checks before any signature.

Co-Sign What Is Right

Only in-policy transactions receive a cryptographic approval token. Everything else is delayed or denied.

Audit Without Exposure

Get immutable receipts for every approval or block — without surrendering custody.

Use Cases

Individuals — Guard Your Wallet

✔ Policy co-signing: only transactions that match your rules are approved
✔ Fraud intelligence: block known scam and rug-pull addresses
✔ Recovery paths: inheritance and time-lock rules built into your wallet flow

Teams & Family Offices — Govern Together

✔ Separation of duties: no single approver can move funds alone
✔ Policy thresholds: daily / monthly / per-asset limits you define
✔ Immutable receipts: every approval or block logged for audit

DAOs & Institutions — Enforce at Scale

✔ Policy templates: pre-built guardrails for treasuries and grants
✔ Org-wide attestations: transactions require consensus across stakeholders
✔ Compliance-ready audit trail: prove every signature met policy