Step 1
Read the contract
The customer opens the document and scrolls to the end. The details are filled in from your system or form, and the terms of the simple signature agreement are in the same window.
Contract signing after verification
The customer has passed the check and signs the contract right away, without leaving the page. The passport, selfie, Liveness and a match of the contract details against the passport confirm who signed, and an audit trail with timestamps and the document hash stays with you in case of a dispute.
Audit trail with document hashes Database checks before signing Web SDK and REST API
Signing a contract with identity verification: what an SMS code cannot prove
Check and signature in one session
The passport, selfie, Liveness and signature are linked by a single record: whoever was checked is the one who signed. How the steps before signing work — on the page digital onboarding.
- 01
A code confirms a phone, not a person
A one-time code shows that the signature was made by someone with access to the number. It does not say who held the phone or whether they are the person named in the contract.
- 02
The signer entered the details themselves
The full name and passport details in a contract usually come from a form. If they were not matched against the document, a contract can be drawn up in someone else’s name — and formally everything will be signed.
- 03
A dispute starts with the question “who signed?”
The customer says they never entered into the contract. You will have to answer: the law requires the method of signing to reliably identify the person who expressed their will.
- 04
Check and signature in different systems
If KYC was completed in one window and the signature came in another, later, there is no link between them. It is harder to prove that the person who signed is the one who was checked.
- 4 matches passport, selfie, Liveness, contract details
- 1 record check and signature in one audit trail
- 16 in 1 database checks for 50 ₽ in the same session
Signing in the same session as the check: six customer steps
A digital signature after a passport check takes the customer a few minutes and needs no separate registration. You upload the contract template in advance and choose the checks; the customer receives a link or opens signing in your app.
Step 2
Click “Sign”
The click starts the signing session. From then on, every action gets a timestamp and goes into the audit trail.
Step 3
Photograph the passport
The platform recognises the fields and checks the document: machine-readable zone and checksums, screenshot, photocopy, printout, traces of a graphics editor, pasted-in photo.
Step 4
Selfie and Liveness
The customer takes a selfie with the passport and passes a liveness check: a live person is in front of the camera, not a photo, video, mask or deepfake. The face in the selfie is matched against the photo in this passport.
Step 5
Match the details and databases
The full name, date of birth and passport number in the contract are matched against the recognised document. The selected database checks run in parallel. If they do not match, the signature is not applied.
Step 6
Receive the signed contract
The customer receives the document; you receive the signed contract and an exportable audit trail with the document hash. Your system learns the result and opens the product to the customer.
A simple electronic signature under 63‑FZ: when it equals a handwritten one
A simple signature with identity confirmation is not a special kind of signature but a simple electronic signature with a strong rule for identifying the signer. Equivalence to paper comes from the agreement of the parties, and the evidence in a dispute comes from the check and the log.
- A transaction made by electronic means complies with the written form if the method used reliably identifies the person who expressed their will (Art. 160, Part 1)
- A contract can be concluded as a single electronic document signed by the parties, or by acceptance of an offer (Art. 434, Part 2; Art. 438, Part 3)
- A simple signature, made with codes, passwords or other means, confirms that the signature was created by a specific person (Art. 5, Part 2)
- A document is considered signed if the key was applied under the system operator’s rules and the document contains information about the signer (Art. 9, Part 1, Cl. 2)
- A document with a simple signature is equal to a paper document with a handwritten signature if the law or an agreement of the participants so provides (Art. 6, Part 2)
- The agreement must contain the rules for identifying the signer and the duty to keep the key secret (Art. 9, Part 2). What exactly to write is in the block on the agreement
- Consent in the form of an electronic document signed with an electronic signature is equivalent to written consent (Art. 9, Part 4)
- A selfie used to establish identity is biometric data: the customer’s written consent is required (Art. 11, Part 1). Obtain it as the first step of the session, before capture
- This is a guideline, not a legal opinion; the exact text of the provisions is in ConsultantPlus. If the law requires a qualified signature, notarial form or paper for a document, a simple signature will not do — see which documents cannot be signed this way.
The signer’s face and 572‑FZ: matching at the moment of signing, not against an old selfie
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Matching against the passport from this session
The face in the selfie is compared with the photo in the passport the customer has just photographed. This is a one-off one-to-one match inside signing — as in the passport and selfie check.
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Liveness — against a stand-in signer
The liveness check filters out photos, videos, masks and deepfakes: signing a contract with someone else’s passport while holding the owner’s picture in front of the camera will not work.
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The next contract — a new check
An addendum a month later is signed the same way: the document and Liveness again, matched against the passport in this session. There is no signing “by face” from a selfie saved in a previous session.
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Automatically by biometrics — via the UBS
If you need to confirm identity by biometrics without a document, the lawful automatic route is the Unified Biometric System. How to combine it with NeuroVision checks — on the page identification via the UBS.
For frequent signings by one customer, your own simple-signature method in a personal account is more convenient, with the full selfie check kept for the first contract and for changes of details.
Simple electronic signature agreement: six points for an offer
Without an agreement, a simple signature does not become equal to a handwritten one. It is usually included in the offer or user agreement and accepted at the start of the signing session. Your lawyer writes the text — here is what it should reflect. How this works in the product — on the website NeuroSign.
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How the signer is determined
A mandatory point under Art. 9, Part 2. The signer is the person who in the signing session presented a passport, passed the selfie and Liveness, and whose data matched the contract details.
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What counts as the key
The simple signature key is defined by you: for example, a one-time link to the signing session together with passing the check. The customer undertakes not to pass the link and code to others — this is the second mandatory point.
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The moment of signing
The timestamp of clicking “Sign” and of the end of the session. It is convenient to state outright that the moment of signing is the successful completion of the check.
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How integrity is verified
The document hash is recorded in the audit trail. Any change to the text after signing changes the hash — this is visible on verification.
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How the customer receives a copy
The signed document is sent to the customer right after the session: by email, to a personal account or to an app — as your agreement provides.
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Which documents are signed this way
A list of documents: contracts, addenda, applications, consents, acts. Separately — what cannot be signed with a simple signature and how it is signed instead.
Signing audit trail: what to present if a contract is disputed
Six months later, the customer writes that they did not sign the contract. The audit trail answers three questions: which document was signed, who signed it and how the session went.
- Discuss the template
Document
What exactly was signed.
Recorded
- template name and version
- document hash
- timestamps: opened, “Sign”, signed
Why
- to prove that the text did not change after signing and that the customer saw exactly it
- Choose checks
Signatory
Who signed.
Checks
- passport and signs of forgery
- selfie and Liveness
- matching the face against the passport photo
- matching the contract details
Databases
- results of the checks selected in the scenario: lists, sanctions, wanted lists, debts, bankruptcy
- Set up the export
Session
How the signing went.
Timeline
- session events in order with check statuses
- technical session attributes
Export
- exportable audit trail alongside the signed document
- storage under your rules and terms
Check statuses in a KYC session — in the documentation
Database checks before signing: who should not be admitted to a contract
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The passport is valid
Passport validity check: an invalid or lost document is a reason to stop signing even before the face is matched. 5 ₽ per check.
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Watchlists and sanctions
Rosfinmonitoring list of terrorists and extremists and the OFAC, EU, UK and UN sanctions lists — 5 ₽ each. International sanctions and PEP screening — 36 ₽.
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Wanted lists
Wanted lists of the Ministry of Internal Affairs, the Federal Penitentiary Service and the Bailiffs: a contract with a wanted person is a risk for you and a signal for the security team.
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Debts and bankruptcy
Enforcement proceedings, bankruptcy information and arbitration cases — if the contract involves deferred payment, a lease or a loan.
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TIN and self-employed status
The TIN from the passport and self-employed status — when you sign a contract with a contractor and need to know how to pay and which documents to receive.
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Everything at once — “16 in 1”
16 checks against Russian databases in one package for 50 ₽ with a Russian passport. The set is chosen in the signing scenario, and the results go into the audit trail.
The full list and prices — in the database check catalogue and in the documentation.
Which documents to sign after verification and which — with another kind of signature
A simple signature with identity verification is for documents between a company and a person where the form is not prescribed by a regulator. Where the law requires more, it will not help, however many checks there are.
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Suitable
What: contracts with individuals, addenda, offers and applications, consents, acts, notices, NDAs.
Condition: a simple signature agreement with the customer. -
Data processing consents
What: consent to the processing of personal and biometric data.
How: an electronic document signed with an electronic signature is equivalent to written consent — it is signed as the first step of the session. -
QES or NQES required
What: documents for which the law requires an enhanced signature, and company-to-company documents.
How: through a certification authority — we cover applicant checks for a CA on the page for CAs and signature services. -
Paper or a notary only
What: documents that the law requires to be drawn up on paper only or certified by a notary, as well as documents containing state secrets.
How: identity verification can help prepare such a document, but the signature is not electronic.
Where contracts are signed right after the check
The costlier a mistake about the signer, the more important it is that the check and the signature happen in one session.
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Rental and hire
- a rental contract before the item is handed over
- matching the passport against the renter’s details
- wanted lists and debts before signing Learn more
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Loans and instalments
- contract and consents in one session with KYC
- passport validity check
- “16 in 1” before issuing Learn more
- Also: instalments
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Contractors and the self-employed
- a contract with a contractor after the passport check
- TIN and self-employed status
- the act — with the same signature Learn more
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Insurance and education
- an application and contract without visiting an office
- consent to data processing as the first step
- audit trail attached to the policy or contract Learn more
- Also: online learning
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Instalments and BNPL
- an instalment contract and consents in one session
- wanted lists and debts before signing
- audit trail in case of a dispute Learn more
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Online learning
- a service contract without visiting an office
- consent to data processing as the first step
- the act — with the same signature Learn more
How much a check and the signature of one contract cost
Two options: ready-made NeuroSign signing, or a NeuroVision KYC session before your own signature. Database checks are added at catalogue prices.
- Add this check
A check before your signature
from 29 ₽ per session
The “Document + liveness” package: recognition and antifraud for the passport, selfie or Liveness, matching the face against the photo in the document. The signature is applied by your system.
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Signing with identity confirmation and an audit trail. Integration — 250,000 ₽ one-off, pay per use or by package.
- Choose checks
Database checks
5 ₽ per check
Any check against Russian registers — 5 ₽, all 16 — 50 ₽, international sanctions and PEP screening — 36 ₽.
The set of checks inside a NeuroSign session and the price per session with database checks — on request. The KYC session price falls with volume — the calculator in the price matrix.
How to connect: the whole of NeuroSign, or a check before your signature
Terms
- A 1-month trial period
- Documentation and test environment
- Integration support under the contract
Signing glossary
Terms from the contract, the signature agreement and a conversation with a lawyer.
- Simple electronic signature
- A code, password or other means that confirms that the signature was created by a specific person.
- SES
- Simple signature agreement
- The terms under which the parties recognise a document with a simple signature as equal to a paper one: how to identify the signer and how to keep the key.
- e-signature agreement
- The simple signature key
- What the signer uses to sign a document: a code, password, one-time link — as defined by the agreement.
- signing key
- Signatory
- The person who signed the document. When signing after verification — the one whose passport, selfie and details matched.
- signer
- Details matching
- Comparing the full name, date of birth and passport number in the contract with the data of the recognised document.
- data match
- Audit trail
- The signing session log: events in order, timestamps, check results, the document hash.
- audit trail
- The document hash
- A short “fingerprint” of the text. If even one character changes, the hash changes too.
- document hash
- Liveness
- A check that a live person is in front of the camera, not a photo, video, mask or deepfake.
- liveness
- Offer
- A proposal to enter into a contract addressed to a customer. Acceptance can be actions under its terms.
- offer
- QES
- A qualified electronic signature with a certification authority certificate. Needed wherever the law requires it.
- QES
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Frequently asked questions about signing a contract after a check
Both are simple electronic signatures. A code confirms access to a phone number. A signature after a check confirms the person: the passport, selfie, Liveness and a match of the contract details with the passport, all in one session and one audit trail.
Yes, if the parties’ agreement or the law so provides (Art. 6, Part 2 of 63‑FZ). The agreement must describe how the signer is identified and that the customer keeps the key secret (Art. 9, Part 2). It is usually included in the offer or user agreement.
Yes. In NeuroSign, the customer opens the contract, clicks “Sign”, photographs the passport, takes a selfie and passes Liveness — and after all the matches receives the signed document. If you have your own signature, the NeuroVision KYC session goes in front of it.
The rule for identifying the signer (who passed the check in the session and whose data matched the contract), what counts as the key and the duty not to pass it on, the moment of signing, how to obtain a copy and the list of documents. Your lawyer prepares the text.
The document hash and timestamps, the results of the passport check, selfie, Liveness and details matching, the results of database checks and a timeline of session events. The audit trail is exported together with the signed document.
Yes. A selfie used to establish identity is biometric personal data, which requires written consent (Art. 11, Part 1 of 152‑FZ). Consent in the form of an electronic document signed with an electronic signature is equivalent to written consent — it is signed as the first step.
No. Face matching runs only against the passport the customer showed in this session. For the next contract — the document and Liveness again, or your own simple-signature method in a personal account. Automatic identity confirmation by biometrics — via the UBS.
Those for which the law requires a qualified signature, notarial form or paper only, and documents containing state secrets. Documents between companies are usually signed with a qualified signature.
The signature is not applied, and the session ends with a clear reason. The customer corrects the data in the form or your system generates the contract again — and signing runs once more.
In NeuroSign — from 20 ₽ per document, integration — 250,000 ₽ one-off. A KYC session before your own signature — from 29 ₽ for the “Document + liveness” package, database checks — 5 ₽, all 16 — 50 ₽.
We will build a “check and signature” scenario for your contract
Tell us which contracts and how many per month your customers sign and where the signature is now — we will propose a set of checks, a link with your CRM and a price calculation per document.
Can't put your request into words? Book a call and our team will contact you at a convenient time
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The NeuroVision platform is listed in the Russian software registry, entry no. 19972. Rospatent certificate no. 2023661508.
Address: Moscow, Presnenskaya Embankment 12 — Moscow City business centre, Federation Tower. Nearest metro stations: Delovoy Tsentr and Mezhdunarodnaya.
