Experiment 01 · Ceremonies
A signature that a stranger can check.
Each ceremony issues a short-lived certificate to every signatory, seals the document to the PAdES standard with an independent timestamp, writes an audit log of who opened and who signed, and enters the result in a public ledger. A key by email, in turn; no account, no app, no password.
- Wippli SignCertified document signature for teams who sign often; organiser and up to four parties.
- Sign PlannerPay per document, no subscription. You organise, they sign. US$9.99 a document.
- PermissionAn agent asks, a person approves. The approval returns as a proof the asking service can verify.
- Issued per ceremony: a certificate per signatory, an attestation of what each filled in, a seal over the PDF and the audit log, a signed proof envelope.
- Independent of us: time from DigiCert, free verification at sign.wippli.ai/verify, a public hash-chained ledger, storage encrypted per document.