Sign and verify documents on-chain
Create verifiable documents or sign existing PDFs with your wallet. Cryptographic proofs for contracts, certificates, and agreements. EVM + Bitcoin compatible.
No private keys required. Instant public verification.
Use cases
Documents and proofs for contracts, compliance, and crypto operations
Contracts & agreements
Sign NDAs, OTC agreements, and contracts with your wallet
Multi-signature documents
Contracts requiring multiple wallet signatures
Proof of funds
Balance verification for counterparties
P2P / OTC operations
Wallet control verification for peer-to-peer trades
Audits & compliance
Verifiable evidence for regulators and auditors
Corporate documents
Invoices, records, and cryptographically signed documents
How it works
Create verifiable documents or sign existing PDFs in three simple steps.
Connect your wallet
Connect any EVM or Bitcoin-compatible wallet. No seed phrases required, no fund access.
Create or upload your document
Generate a new document using our templates, or upload an existing PDF to sign.
Sign and verify
Sign cryptographically with your wallet. Receive a verifiable PDF with QR code, hash, and public verification link.
Secure, verifiable signatures
Cryptographic proofs without exposing private keys or fund access.
No seed phrase required
We never request or store private keys
No access to funds
Signatures cannot authorize transactions
Standard cryptographic signatures
Verifiable EIP-191 message signing
Public verification
Anyone can verify document authenticity