SKALE

Type

Elastic sidechain network connected to Ethereum L1 through BLS Rollups. Allows deploying "Ethereum-as-a-Service" EVM-compatible blockchains through rental of node space on mainnet.

Tx Cost

Gasless under a specific chain usage threshold, small increase once over the threshold to fend off DDoS attacks. Threshold increases with rented sidechain size.

Finality

Finalization times depend on sidechain size and configuration, but generally sub-second.

Consensus

Proof of Stake with Asynchronous Binary Byzantine Agreement Consensus.

$ Efficient

Very efficient since you can adapt the sidechain size to developer needs. New applications can start with small and economic sidechain sizes and then grow together with their userbase.