From brief to working system
Across 2018–2022, Capacity created the technical concept, smart contracts, business processes and web design. We delivered the programming and ongoing maintenance.
Created for Austrian Post · 2018–2022
Physical postage. Digital ownership.
Created by Capacity for Austrian Post, Crypto Stamp connected physical postage with blockchain ownership—from a basic customer brief to a world first.

Across 2018–2022, Capacity created the technical concept, smart contracts, business processes and web design. We delivered the programming and ongoing maintenance.
The work included NFC integration introduced with Crypto Stamp 3.0, bringing the physical stamp and its digital counterpart closer together.
Crypto Stamp brings together our blockchain, product and delivery experience. Related engineering work includes wallets, payments, protocol design and security reviews.
LET’S MAKE IT USEFUL.
Tell us what you want to improve, the systems involved and the constraints that matter. We’ll work out a useful first step together.
Book a conversation hello@capacity.at