Solana is a blockchain designed to support scalable decentralized applications (gapps). One of the key distinguishing features of Solana is its Proof of Stake (PoS) consensus system, which is backed by Tower Consensus. This is a variant of the system known as Practical Byzantine Fault Tolerance (PBFT), it allows distributed networks to reach consensus despite attacks from malicious nodes.

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https://medium.com/solana-labs/solana-will-reduce-its-token-supply-to-account-for-market-making-allocation-b8366288acef

telegram news 28 April 2020 13:18

Hedera Hashgraph is a public network based on distributed ledger technology (DLT), developed for businesses and companies as a platform for decentralized services and applications. Hedera positions itself as a third–generation public network, the next stage in the development of bitcoin and Ethereum. The strengths of the project include high scalability, security, smart contracts, energy efficiency and low usage fees.

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"Kingdom Trust will provide the Hedera ecosystem with end-to-end capabilities to secure digital currencies. #HBAR holders reduce their risk of holding assets directly while achieving regulatory compliance, transparency, and accountability": 
https://www.hedera.com/blog/kingdom-trust-now-offers-custody-for-hedera-hashgraph

"Kingdom Trust will provide the Hedera ecosystem with end-to-end capabilities to secure digital currencies.

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