The Ultimate Guide to Harmony $ONE

Описание: Harmony, the next generation sharding-based blockchain that is fully scalable,
provably secure, and energy efficient. Harmony addresses the problems of existing blockchains by
combining the best research results and engineering practice in an optimally tuned system.
Specifically, Harmony makes breakthroughs in following aspects:
● Fully Scalable: Harmony shards not only the network communication and transaction
validation like Zilliqa, but also shards the blockchain state. This makes Harmony a fully
scalable blockchain.
● Secure Sharding: Harmony’s sharding process is provably secure thanks to the
distributed randomness generation (DRG) process which is unpredictable, unbiaseable,
verifiable and scalable. Harmony also reshards the network in a non-interruptive manner to
prevent against slowly adaptive byzantine adversaries.
● Efficient and Fast Consensus: Unlike other sharding-based blockchains which require
PoW to select validators, Harmony is based on PoS and thus energy efficient. Consensus
is reached with a linearly scalable BFT algorithm that’s 100 times faster than PBFT.
● Adaptive-Thresholded PoS: The threshold of stakes required for a node to join the
network is adjusted based on the volume of total staking in a way that malicious stakers
cannot concentrate their power in a single shard. Moreover, the threshold is low enough so
that small stakers can still participate in the network and earn rewards.
● Scalable Networking Infrastructure: With RaptorQ fountain code, Harmony can
propagate blocks quickly within shards or across network by using the Adaptive
Information Dispersal Algorithm. Harmony also adopts Kademlia routing to achieve
cross-shard transactions that scale logarithmically with the number of shards.
● Consistent Cross-Shard Transactions: Harmony supports cross-shard transactions
with shards directly communicating with each other. An atomic locking mechanism is used
to ensure the consistency of cross-shard transactions.
By innovating on both the protocol and network layers, Harmony provides the world with a
scalable and secure blockchain system that is able to support the emerging decentralized
economy. Harmony will enable applications which were not previously feasible on blockchain,
including high-volume decentralized exchanges, interactive fair games, Visa-scale payment
systems, and Internet-of-Things transactions. Harmony strives to scale trust for billions of people
and create a radically fair economy.


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website: https://www.harmony.one/
whitepaper: https://harmony.one/whitepaper.pdf
tweeter:   / harmonyprotocol  
telegram: https://t.me/harmony_one
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