What is Bank Identity (BankID)
Bank Identity – BankID is a project of Czech banks under the umbrella of the Czech Banking Association, whose goal is to enable Czech banks to provide their customers with services for identity verification, document signing, or logging in to various internet services.
Similar systems operate, for example, in the Scandinavian countries.
What is signing via BankID SIGN
One of the services that Bank Identity provides is signing documents via BankID, referred to as BankID SIGN.
It is a genuine signature, i.e. an expression of will and a legal act. This is how this service differs from BankID IDENTIFY, which serves only for remote identification — Signi verification
From a legal standpoint, it is an advanced electronic signature – that is, a level lower than qualified, but higher than simple.
Advantages of signing via BankID SIGN through Signi
Signi provides everything needed for managing electronically signed documents, i.e. their drafting, sending for signature according to a defined signing scenario, options for advanced identification up to the level of the AML law, document records, their long-term archiving, ready-made integrations with commonly used systems (e.g. Microsoft 365, etc.), and corresponding APIs for integrations.
Signi customers need to do almost nothing extra to use bank identity. There is no need to integrate with Bank Identity services; it is enough to set up the required details in Signi to use its services.
The electronic signature can thus be made available to the vast majority of the population while processing all signed documents in a uniform way in the same environment. If the signatories do not have the option to sign via BankID SIGN, it is possible to use other types of signatures - signature via SMS, biometric or qualified, and optionally combine them with remote identification — Signi verification
How signing via BankID SIGN works – step by step
For the proposer
Sending documents for signature via BankID SIGN is a separately charged feature in Signi. If you have it active, a new signature type appears for the individual signatories in the signing scenario for a document or set of documents: "Signature via BankID".

For the signatory
1. Displaying the document in Signi After receiving the invitation to sign (by email or SMS), open the document in Signi, review it, and click "Sign".
see Receiving a document for signature

2. On the BankID pages, select from the banks that allow BankID SIGN
After choosing to sign via BankID SIGN, a list of banks that support this service is displayed.

Selection of banks from those that allow signing via BankID SIGN.
3. On the BankID pages, details about the signed document

4. On your bank's pages, log in to the banking application
5. On your bank's pages, you confirm your consent to transfer your personal data for the purpose of signing

6. On your bank's pages, a prompt to sign with your mobile key is displayed.

7. On the mobile key, you confirm your signature on the document in the same way you confirm, e.g., a payment.

8. On the Signi document signing pages, a confirmation of the document signature is displayed
After successfully confirming the signature with the mobile key, you are redirected to the final signing page in Signi. The document is then distributed for signature to other signatories. If you were the last signatory, all signatories receive information about the closing of the document along with their copy of the electronically signed document; for more see Receiving a document for signature.

The resulting document
After opening the resulting document, for example in Adobe Acrobat Reader, you will find information about the embedded certificates in the signatures panel:
- one or more signatures (depending on the number of signatories) secured via BankID SIGN – they appear as unverified, because it is not a qualified signature,
- the electronic seal of Bankovní identita a.s., the operator of the bankid.cz service,
- the electronic seal of Digital Factory s.r.o., the operator of the Signi.com service.
Electronic seals are not a legal act. They are only an organization's confirmation of (co-)authorship of the document, i.e. they can be referred to for information about authorship, see Electronic seals

Display of certificates in the resulting document.
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