This information will be announced later at the site http://optherium.io/
Token sale consits of several stages. At the first stage the minimum amont was 10,000 USD. This stage finised.
Now is second stage and the minumum amont is 1000$.

All information about next stage of the token sale will be announced at the site of Optherim, at social networks and here at Bitcointalk 

It is a good standard practice to lower the minimum investment threshold with each level. I think closer to completion, even novice investors with minimal investments will be able to participate.

It is our sincere pleasure to introduce Davide Lombardi, our new Chief Marketing Officer!

Davide (https://www.linkedin.com/in/davide-lombardi-21479b23/) is an Italian expert in the Blockchain area, an influential business coach, a leader of investment pools, and a co-founder of Dynamite Academy. He has proficient skills in business development, marketing, management, and financial planning.

With rich experience and a track record of success, David will actively bridge relations between clients and Optherium.

We are excited!💪🏻🙂

Exactly. Hacking a device cannot be performed without user assistance. Stealing money from a wallet using biometric protection is more difficult than stealing money from a wallet without this protection. But often scammers convince users to transfer funds to them. That is why every user should take care of the safety of their funds. In this case, biometric identification in the wallet, as in this project, will not prevent.

Exactly. Hacking a device cannot be performed without user assistance. Stealing money from a wallet using biometric protection is more difficult than stealing money from a wallet without this protection. But often scammers convince users to transfer funds to them. That is why every user should take care of the safety of their funds. In this case, biometric identification in the wallet, as in this project, will not prevent.

Of course. For any startup, it’s convenient to use money to develop from one source. No hassles to raise funds. But in most cases, projects do not find money from a single large investor.

Sometimes it happens. But it directly depends on the project idea. The more benefits the project can bring in the future, the more large investors will be interested in them.

From human stupidity there is no reliable protection). Everyone must understand that there are a lot of scammers.

You can find this information, as well as some other on the project website tde.optherium.io:
Round A                Whitelist              Pre-Sale                Main Sale
Start Date            5 October 2018      5 December 2018    5 February 2019
End Date              5 December 2018   5 February 2019     5 March 2019
OPEX price, USD  $0.75                     $0.85                    $1

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Our experts analyzed the ratings of 14 world rating agencies and on its base calculated the weighted average of the project.
Your rating is 69.58 of 100.
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