Re: [INFO]-Crypto Stamps- Collectable Blockchain postage stamps
I just got confirmation from the collector service that a special ink for crypto stamp 2.0 will be available on June 25 in Vienna. Since many crypto stamp 2.0 buyers will not have their stamps in hand I guess you can still get them stamped for a while after the first day.
Just what comes to my mind. The stamps will be shipped on June 25. And this is the publication date as well. So how can anyone outside Vienna get the ink with date 25.06.2020? Timetraveling? 
If you are familiar with philately, collectors know that very often for commemorative stamps they have to produce special ink. And the release date is known. It's common that many post companies pre-produce FDC with release date ink. This kind of ink will be normally used for several days/weeks after release date.