Will there be any airdrop/bounty?
It is not announced yet.
Also interested in the mechanics of your "voucher tokens" and how they work with the "real" token later on
The voucher tokens will be redeemable for fully programmed tokens that will be spendable on the Envilope platform as soon as the blockchain integrations are complete.
Voucher tokens will be identified as LOK. These voucher tokens do not have any complex smart contract functions and will only act as redeemable vouchers.
LOK voucher tokens will be accepted at a 1-to-1 exchange rate for LOCK tokens on the Envilope website soon after the Token Sale is completed.
The purpose of using a voucher token is to allow time for developers to code the smart contract, integrate with the existing Envilope system, perform adequate testing and acquiretrusted third-partyauditorsto review code prior to release. Since the Envilope team values the trust of their current, new, and future clients, they do not want to risk the security that they are known for by rushing blockchain integrations to market without performing thorough due diligence.