Blockchain systems based on the Proof-of-Stake algorithm require tokens for securing delegated participation and supporting validators. 38 PoS blockchains have almost $4 billion in tokens bonded.

The research firm Diar published a report on the number of tokens bonded for backing validators and fuel their mainnets. The most “expensive” PoS blockchain is the EOS network, whose validators and system need about $1.8 billion in EOS tokens, that is 47% of the total coin supply. Dash cryptocurrency stands on the second place in the ranking, with $431 million in tokens delegated or engaged in network operations, that is 54% of the total supply. The Cosmos blockchain project entered the ranking just after its mainnet was launched last week, with $300 million in Atom tokens secured for validators.

According to Diar, the tally of tokens delegated or engaged will increase with the launch of new PoS-blockchains. In 2019, several projects are expected to launch their mainnets, such as Cardano, IOST, AION, Rchain, Phantasma, and others.

The profitability of these projects varies from a couple of percent per year to 30%. Thus, it is often more profitable for users to run masternodes in these blockchains, than just investing in coins. The most profitable yield is shown now by Horizen, SmartCash, Pundi X, Zcoin, Cosmos.

Approximately 70 blockchains work on the PoS algorithm.

Cosmos is a network with infrastructure for interaction between existing blockchains. It also provides the ability to create new blockchain networks. The goal of the Cosmos project is to create a “blockchain internet”, a global, scalable blockchain ecosystem that is compatible with each other. The network should deploy on top of the Tendermint consensus protocol. The Cosmos project rather offers working solutions for business and convenient tools for developers.

Atom tokens were sold out during the ICO in 2017. The crowdsale took just 28 minutes to be completed, and Cosmos attracted 4,870 BTC and 246,890 ETH worth $17 million at that time.