What is the blockchain?

The blockchain is like a digital register in which various transactions such as orders, transfers or securities are recorded. The information on each individual transaction is bundled into a data package – a data block that is then stored decentrally on a large number of computers. The special feature: each data block contains a hash, a unique key, of the preceding block in the chain. And so the individual blocks are unchangeable. If you wanted to change the data of a block, you would have to do so on all computers on which it is stored. So the individual blocks are connected with each other by hash functions. This is why we speak of blockchain: a chain of data blocks (

The blockchain is based on the distributed ledger (technology). Distributed ledgers function like a cash journal, from which any number of copies are distributed to several computers and to which several parties have access. The blockchain infrastructure is already used today to exchange different crypto currencies such as Bitcoin. In the future, the blockchain infrastructure could also be used for political elections or in the energy sector, for example, for a self-sufficient power supply system.

Why do blockchain companies need PR?

The blockchain will continue to become more relevant for the digital economy. According to Deloitte’s Global Blockchain Survey 2018, 39 percent of the companies surveyed worldwide plan to invest five million US dollars and more in the integration of blockchain applications in 2019. Despite this trend, blockchain companies and in particular young start-ups face great challenges. The blockchain industry is highly competitive and providers of blockchain solutions are fighting for the attention of investors. In order to inspire potential investors to win their trust and convince them, blockchain companies need a communication strategy tailored to their specific needs. They should engage in sustainable PR in order to make themselves heard. And media are highly interested in blockchain solutions. The topic has long outgrown niche magazines and has found a place in large business and quality media.

The top 5 blockchain companies from Germany


The Bocholt-based start-up Teal wants to revolutionize e-commerce with its blockchain solution. Particularly interesting: Teal interlocks a patented artificial intelligence, whose functionality is based on the human brain, with a decentralized blockchain infrastructure as an e-commerce platform. In this new marketplace, the blockchain enables transparent transactions between user and brand. The sovereignty over the own data lies with the respective party. The AI ensures that search results and recommendations correspond to the actual wishes of the users.


With the Blockchain-Fintech Bitwala, customers can send money internationally – in the form of crypto currencies such as Bitcoin or Altcoin. Cash transactions on a block-chain basis are significantly faster and cheaper to process than with traditional payment providers or banks. The banking company founded in Berlin connects the current account with the Bitcoin Wallet: customers can use regular online banking services with a Bitwala account or trade with Bitcoins.


Ubirch uses the blockchain infrastructure to encrypt data traffic within the Internet of Things (IoT). The Cologne-based company wants to ensure that data exchanged between networked devices is securely packaged in the blockchain, thus strengthening confidence in IoT applications. Ubirch is taking advantage of the blockchain’s properties so that data stored in it cannot be subsequently changed without this being noticed.


Jolocom has developed an app that uses the blockchain to give users back control over their own digital identity. The app functions as a “smart wallet” for user data. Users store personal data such as name, address and telephone number. This data is then stored unverified and decentral on the blockchain. Only when the user makes a purchase, for example, does he use the Jolocom app to specifically transmit only the data required for the purchase to the contractual partner. For online shops, this has the unbeatable advantage that the decentralised storage of user data automatically guarantees data protection.


Lisk is an app platform that allows developers to set up so called DApps in a simple JavaScript and share them with others. DApps are programs that are not built and distributed by a single vendor but are distributed in a blockchain-based peer-to-peer network. The source code is visible to all users within the network. Everyone knows what the app does and how it works.

The three most important blockchain events


The Distribute is one of the largest blockchain conferences in Germany and will take place for the third time this year. On the two days of the event, the focus will be on blockchain applications from finance, government & society, industry and human resources. The Distribute is organized by the Blockchain Competence Center, which wants to advance the development of distributed ledger technologies with the help of the conference.


Like the Distribute, the Blockchain Summit Frankfurt will illuminate in which sectors of the digital economy the blockchain infrastructure is already used. The thematic focus in 2019 will be on the four main players in the blockchain universe: companies, the state, developers and investors. Networking is at the top of the agenda at the Blockchain Summit, where decision-makers from the tech industry meet innovative start-ups.


The initiators of the Blockchance Conference Hamburg will focus their two-day event on the socio-economic changes that the blockchain will bring with it in the future. Last year, for example, the non-profit organisation Viva con Agua presented its Watercoin, a donation currency based on Blockchain. This year, the Blockchance Campus Hamburg in the Hafencity will be opened for the August conference – this is where coworking space, an education centre and a blockchain industry hub will be created.




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