Introduction:

Obol is a web on Ethereum whose purpose is to decentralize Ethereum validators. Ethereum operates with proof of stake and proof of work protocols. These appointments by a validator lock up their token for staking which assembles blocks and transactions for the network.

If the validators work in inappropriate manner, their staked ETH slashed. Slashed ETH is then taken away from the validator. Obol seeks to decentralize the behavior of Ethereum's validators through an approach called Fault-tolerant staking (FTS).

Slashing is the most destructive for validators and delegators, Also both fail in possible rewards obtaining or getting slashed. Fault-tolerant staking is a style of staking that aspires to miscalculate the slash and reward loss losses by validators via their distributed validator approach.

Advantages of FTS

The main advantages of FTS system that provided by Obol are:

1. providing backups to the resilient operation of the system by other validators in case of slashed validators.
2. The accomplishment of decentralized Ethereum through their novel approach.
3. Distribution of rewards between validators in proper order and suitable manner.

Disadvantages of FTS

The application of this approach has some disadvantages that provided as:

1. The enlargement of operational cost due to the run of backup system and decentralizing validators.
2. This approach adds complexity to the source blockchain by the applications of its algorithm
3. Its popularity among blockchains is unknown and should be adopted by more blockchains to verify its usefulness.

Application of FTS

As we know, the proposed approach by Obol network is inspired by telecommunication system and has huge application on it.

The blockchains that aims to optimize their staking performance by their validators should adopted this FTS approach.