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Private BetaBuilt in the EU. Direct onboarding with the founding engineering team behind Chegatta.
security ISO 32000-1 PAdES
verifiedSovereign Cryptographic Proof • Tamper-Evident Signatures

Employment contracts signed in minutes. Provable for decades.

Signattio 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.

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Verifysearch
Signattio dashboard listing envelopes out for signature with their signing status
check14 days • 10 envelopes • no card • cancel anytime
check_circleVerify without an account
check_circlePAdES Sealed (ETSI EN 319 142)
check_circleRFC-3161 Timestamps
check_circle€9/mo, no per-seat fees

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.

Try the verifierverified
Flat Pricing
€9/mo

Zero per-seat tax on team members.

Signing Velocity
< 90s

Zero friction. No account required to sign.

Audit Proof
SHA-256

Cryptographic Merkle hash chain on arrival.

Legal Standing
100%

eIDAS Art. 26 AdES evidence.

Try signing. Right now.

No account, no waiting. This is exactly what your signers experience in real time.

Live Sandbox CeremonyBilingual & multilingual
PT (+351)912 ••• 678

Signer phone verification via a six-digit code.

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4
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9
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Mock environment: zero charges, immediate visual confirmation
Ledger LifecycleSTATUS: READY
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1 Invite sentCOMPLETE

Unique single-use token dispatched via TLS 1.3 secure endpoint.

SHA256: 9b2d...f4e1
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2 Code verifiedACTIVE

Phone possession proven. IP address and device details verified.

IP: 194.65.12.82 • Lisbon, PT
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3 Document signedPENDING

Visual mark and embedded signing trace anchored into the PDF canvas.

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4 TimestampedQUEUED

RFC 3161 timestamp authority certificate seal appended.

ETSI EN 319 142• PAdES
Simplicity & Rigor

The 3-Step Evidence Workflow

Designed to minimize friction for your counterparties while constructing a fortress of evidentiary weight.

01

Upload your PDF

Contracts, quotes, NDAs, and master service agreements. Bytes are SHA-256 hashed immediately on arrival — preserving canonical integrity.

Cryptographic Ingestion:
hash: e3b0c44298fc1c149afbf4c899...
02

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.

Signer Proof Capture:
SMS OTP + IP + User Agent + Geo
03

Keep the proof

Receive a PAdES-sealed PDF, a verification code and the full audit trail. Keep your own copy; the evidence pack travels with the file.

Autonomous Proof:
LTV enabled (ETSI EN 319 142-1)
A signer drawing their signature on an employment contract in Signattio's signing ceremony
groupSecure collaboration

Sign together with complete evidence

Send documents for multiple signers with an immutable audit trail, RFC 3161 timestamps, and verifiable proof of signing.

verifiedCryptographic Certainty vs. Visual Stamps

Evidence, not promises.

check_circlePAdES baseline
check_circleHash-chained, append-only immutable audit trail
check_circlePublic verification by code — zero account needed
workspace_premium
Digital Process Evidence
ENVELOPE REF: SIG-2025-PT-88914-ADES
eIDAS Art 26 Compliant
Document Fingerprint
SHA-256: 4b98c3f76101d2a4e58b19e2760a92f15e8c1b3f940ad3a9482184ff8217bb4c
Original canonical payload unaltered.
Timestamp (RFC 3161)
2025-05-18T14:22:09.114Z
RFC 3161 trust service provider • Time deviation ±10ms
PAdES Seal Architecture
ETSI EN 319 142-1 (PAdES)
PAdES baseline
Cryptographic Audit Sequence (Merkle Chain)
EventSigner & DeviceEvidence HashResult
ENVELOPE_CREATEDAdmin (admin@chegatta.eu)0x74a...92bVERIFIED
OTP_ISSUEDSMS (+351 912 441 678)0xa81...cc4DELIVERED
SIGNER_VERIFIEDSafari iOS • 194.65.12.820x2ff...e01VALIDATED
TIMESTAMPEDTSA Root Certificate0x89e...610IMMUTABLE
gavel

Honest about what it's not

Legal Scoping

Signattio 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.

verifiedSimple & Advanced Signatures (AdES). Never misleadingly marketed as Qualified.

€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.

Trial
€0

14 days • 10 envelopes • no card

  • checkFull evidence packs
  • checkSMS & Email OTP
  • checkPAdES sealed final
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Starter
€9/mo

10 envelopes / month • evidence packs

  • checkUnlimited team seats
  • checkRFC-3161 timestamps
  • checkPublic verification code
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Most popular
Growth
€29/mo

100 envelopes • templates • bulk • API

  • checkReusable PDF templates
  • checkBulk sending batch engine
  • checkREST Verification API
  • checkCustom branding / logos
  • checkWebhooks & zapier flow
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Scale
€99/mo

500 envelopes • SSO • support

  • checkSAML 2.0 / Okta SSO
  • checkDedicated builder Slack
  • checkCustom DPA & SLA terms
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infoWhy no seat fee? We think charging €30 for every colleague who needs to review an HR contract is extractive.
ALL TIERS INCLUDE UNLIMITED USERS

What we sell — and what we don't

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Documents needing no statutory written form: employment contracts, sales, services, NDAs, licensing, logistics.

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A complete evidence trail: hash-chained audit, public verification pages, decline with reason, and a sealed final PDF.

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RFC 3161 timestamps, with public fallbacks keeping signing available. Timestamp qualification depends on the authority used.

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API access, webhooks, and a mobile app for your signers and your team.

close

Qualified Electronic Signatures (QES) with a third-party issuer — not offered: our signer certificate stays ours; install our CA using the certificate information published by the service to clear the Adobe banner.

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Documents the law reserves to notaries: wills, real-estate transfers, marriage contracts, terminations.

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Identity assurance beyond phone and email verification — no video identification.

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Public-sector or healthcare infrastructure signing — tenders, professional cards.

If a document needs QES or a notary, we say so — we would rather route you elsewhere than sell you the wrong level.

Inquiries & Jurisprudence

Questions

The technical and statutory specifics of sovereign evidence.

Is this legally valid?add
For the overwhelming majority of corporate, HR, and commercial transactions, advanced electronic signatures (AdES) under eIDAS Regulation (EU) No 910/2014 Article 26 with strong evidence are the working standard. Qualified signatures (and public notaries) remain for deeds and acts where local statutes strictly command them — we never claim to be those.
What do signers need?add
Nothing installed and no account. They open a link from their phone or browser, verify with a one-time code (SMS or Email), and sign. The ceremony follows their preferred language automatically — all 24 official EU languages are supported.
What happens to my documents?add
Originals, per-signature revisions, and sealed finals are kept under the customer's retention settings (defaults of 5 to 20 years by document type), then purged with cryptographic erasure proof. Legal holds can suspend deletion; retention is not a guarantee of availability after termination.
Can I try before paying?add
Yes — 14 days, 10 envelopes, no credit card required. Every single envelope signed during trial carries our full production cryptographic evidence packs and verifiable timestamps.

Start sending provable contracts today.

10 envelopes on us. Setup in 30 seconds. Replace expensive subscriptions with mathematical certainty.

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