Алгоритм

Криптовалюты:

2,117

Обмены:

10

Капитализация рынка:

$2,145,972,238,560

Объем за 24 часа:

$40,432,602,591

Proof of Authority

PoA

Ранг #27

$1,978,447,644

1

1

Победители (undefined)%

24Ч

Проигравшие (undefined)%

Ранг

27

Активы

2

Капитализация рынка

$1,978,447,644

Объем за 24 часа

$59,028,275

Победители

1

Проигравшие

1

Обзор
Активы

$1,978,447,644

Капитализация рынка

$59,028,275

Объем

27

Ранг

1

Победители

1

Проигравшие

N/A

Изменение за 24 часа

N/A

Изменение за 7 дней

0.620

%

0

%

0

%

-23.87

%

-12.18

%

0.040

%

73.48

%

7.54

%

О нас Proof of Authority

Proof of Authority (PoA) is a consensus algorithm used by some blockchain networks to validate transactions and create new blocks. In contrast to Proof of Work (PoW) or Proof of Stake (PoS), where validators are selected based on computational power or the amount of cryptocurrency they hold, PoA uses a system of trusted authorities to validate transactions.

In a PoA system, a set of pre-approved nodes, also known as validators or authorities, are chosen to create new blocks and validate transactions on the network. Validators are chosen based on their reputation, expertise, and the trust they have established within the network. These validators are responsible for validating blocks and ensuring that the transactions they contain are legitimate.

The selection of validators is typically done by the network's creators or a central authority, which can raise concerns about centralization. However, some PoA networks use a decentralized approach to validator selection, where members of the network vote on which nodes will serve as validators. This can help to ensure that the network is more democratic and less susceptible to manipulation.

One of the main advantages of PoA is that it is very fast and efficient. Validators do not need to compete with one another to solve complex mathematical problems or stake cryptocurrency, which can make the validation process much faster than other consensus algorithms. Additionally, PoA networks can have lower hardware requirements than other consensus algorithms, which can make them more accessible and cost-effective for small and medium-sized networks.

Another advantage of PoA is that it is highly secure and resistant to attacks, as the validators are known and trusted members of the network. In order for an attacker to compromise the network, they would need to gain control of a majority of the validators, which can be difficult to do in a well-designed PoA network.

PoA is also well-suited for use in private or enterprise blockchain networks, where trust is already established among the participants. In these cases, PoA can provide a fast and secure consensus algorithm without requiring the computational power or large amounts of cryptocurrency that other algorithms require.

Some examples of blockchain networks that use PoA include Microsoft's Azure Blockchain, the Kovan testnet for Ethereum, and the POA Network. However, like any consensus algorithm, PoA is not without its drawbacks. One potential concern is that the network can become too centralized if there are only a small number of validators. Additionally, the selection of validators can be susceptible to manipulation, as the validators are chosen by a central authority or the network's creators.

Overall, PoA is a consensus algorithm that can be highly secure and efficient, making it a popular choice for smaller and more specialized blockchain networks. However, it is important to carefully evaluate whether it is the right consensus algorithm for a given network, and to consider the potential drawbacks and concerns associated with its use.