Attest: Document Signing You Can Prove
Everything Attest does, in under a minute: passkey signing with no account, documents encrypted in the browser, agreements anchored on Horizen, and zero-knowledge proofs verified on zkVerify.
About this video
Most e-signature tools ask you to trust the vendor: the signature, the audit trail and the certificate all live on its servers. Attest removes that dependency. This film walks through the whole service in under a minute, from sending a document to verifying it independently.
- Signers need no account and no password. They sign with a passkey, using Face ID or a fingerprint.
- Documents are encrypted in the browser before upload. Attest stores only data it cannot read.
- Every completed agreement is anchored on Horizen, and every party receives the same sealed copy.
- Anyone can verify an agreement at no cost, and signers can prove they signed with a zero-knowledge proof verified on zkVerify.
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Two documents are free, with no credit card. The people you send documents to never pay and never need a crypto wallet.