Employment contracts signed in minutes.
Provable for decades.
Signatta is the €9/mo transparent answer to DocuSign for small business: upload a PDF, collect OTP-verified signatures, and get a tamper-evident evidence pack with every envelope — PAdES seals, RFC 3161 timestamps, and hash-chained audit trails anyone can check without an account.
Anyone can check it
Every sealed document has a public verification code. Open it, see the document hash, the signature method, the timestamp authority and the audit chain — with no account and no sales call. We would rather you checked our work than believed us.
Zero per-seat tax on team members.
Zero friction. No account required to sign.
Cryptographic Merkle hash chain on arrival.
Court-provable eIDAS Art. 26 AdES evidence.
Try signing. Right now.
No account, no waiting. This is exactly what your signers experience in real time.
Dual-channel fallback via SMS or instant WhatsApp authentication.
Unique single-use token dispatched via TLS 1.3 secure endpoint.
Phone possession proven. Geolocation & IP bind verified.
Visual mark and embedded biometric trace anchored into PDF canvas.
RFC 3161 timestamp authority certificate seal appended.
The 3-Step Evidence Workflow
Designed to minimize friction for your counterparties while constructing a fortress of evidentiary weight.
Upload your PDF
Contracts, quotes, NDAs, and master service agreements. Bytes are SHA-256 hashed immediately on arrival — preserving canonical integrity.
Collect verified signatures
Email or SMS one-time codes. No accounts to register, no applications to download. Signers complete everything in under 60s in their own language.
Keep the proof
Receive a PAdES sealed PDF + verification code + comprehensive audit trail. Re-verify anytime, 10 or 20 years later, independently without Signatta.
Evidence, not promises.
Every completed envelope automatically exports a court-admissible verification pack: exact byte fingerprints, signer biometric verification logs, and an audit chain anyone can re-check independently.
| Event | Signer & Device | Evidence Hash | Result |
|---|---|---|---|
| ENVELOPE_CREATED | Admin (admin@chegatta.eu) | 0x74a...92b | VERIFIED |
| OTP_ISSUED | SMS (+351 912 441 678) | 0xa81...cc4 | DELIVERED |
| BIOMETRIC_SIGN | Safari iOS • 194.65.12.82 | 0x2ff...e01 | VALIDATED |
| TIMESTAMPED | TSA Root Certificate | 0x89e...610 | IMMUTABLE |
Honest about what it's not
Legal ScopingSignatta covers employment contracts, quotes, NDAs, supplier service terms, and high-frequency B2B commercial agreements. It is not for property deeds, guarantees, or acts where civil law mandates a qualified electronic signature (QES) or public notary. If your document requires that, we will tell you upfront — we would rather lose a sale than sell false proof.
€9
No per-seat tax. No envelope anxiety. Cancel anytime.
Stop paying €40/user/mo for basic signature stamps. Pay for what you actually sign.
14 days • 10 envelopes • no card
- checkFull evidence packs
- checkSMS & Email OTP
- checkPAdES sealed final
10 envelopes / month • evidence packs
- checkUnlimited team seats
- checkRFC-3161 timestamps
- checkPublic verification code
- check5-year retention clock
100 envelopes • templates • bulk • API
- checkReusable PDF templates
- checkBulk sending batch engine
- checkREST Verification API
- checkCustom branding / logos
- checkWebhooks & zapier flow
500 envelopes • SSO • support
- checkSAML 2.0 / Okta SSO
- check20-year legal retention
- checkDedicated builder Slack
- checkCustom DPA & SLA terms
Questions
The technical and statutory specifics of sovereign evidence.
Is this legally valid?add
What do signers need?add
What happens to my documents?add
Can I try before paying?add
Start sending provable contracts today.
10 envelopes on us. Setup in 30 seconds. Replace expensive subscriptions with mathematical certainty.