Not affordable, and quality advertising options should be used. The effect of advertising should be quick. Then the allocated money for advertising will pay off quickly.

All this goes. Soon there will not be a single company left on the market that will keep its bookkeeping on paper. All businessmen will adopt a decentralized database.

It's not so simple to switch to documents of this format from the accounting department, it is necessary to transfer financial, tax and legislative system to the financial system. It is the matter of time.

How long will this information be stored in the project database? Is it safe to store it? After all, at any time this information can fall into the hands of hackers?

It can be stored for a long time on decentralized servers. It is safe. All information will be devided by parts and will be stored on different servers. It is imposible to hack the information because it will be stored in many different places.

Optherium Labs offers a complete solution for fintech companies, banks, eCommerce retailers, service providers, online marketplaces and any other transaction-based business. Our ability to record over 100,000 transactions per second onto the private blockchains makes Optherium’s Ecosystem unique.

-Use Blockchain benefits for your advantage
-Forget about wasting time and effort
-Be sure of security and convenience

More detailed info at: https://optherium.io/

In addition, there is a target audience at such events. The best website for the project

Good question. Personal data of many people have a some value. If a person does not want to use the services of the project, it is possible ask them to lock its data?