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DigitalNote is an open-source blockchain relying on the Proof-of-Work/Proof-of-Stake hybrid protocol. The cryptocurrency associated with the network is XDN. The XDN Masternode Network is built on top of this protocol. The main features of this platform are high-speed untraceable transactions and secure private peer-to-peer communication channels. In order to send an instant transaction, one needs to use the InstantTX function which executes the instant XDN-transactions immediately via the Masternode Network. The messaging service is censorship- and tracing-resistant. The messages get decrypted locally on the receiver's device and nowhere else. The security of the network is achieved via the VRX v3.0 technology that protects the platform from 51% attacks. The DigitalNote wallet is mobile-ready and doesn't consume much resources so it's comfortable for people making transactions on the go.

Cardano is a blockchain-based ecosystem using a currency of the same name (ADA) as a fuel. It is regarded as one of the third-generation blockchain platforms. Currently, Cardano can be used to host smart contracts.

EOS is one of the most popular blockchain-based ecosystems hosting DApps, smart contracts, etc. The company held one of the longest ICO campaigns in history. It lasted for almost a year. One of the selling points of EOS is the potential to develop a near to infinite scalability and cheapness. So far such scalability is yet to be achieved. The transaction fees can be reduced to zero through staking EOS.