Are there staking requirements to become a validator in the SKALE Network?

A key requirement for an effective security and execution layer is a proper incentive structure that addresses both penalties and rewards. With respect to the former, every validator node should have significant value staked into a network. Staking is an enforcer of good behavior in that if a validator decides to collude or go byzantine and gets caught, it will lose its stake and be removed from the network.
In the SKALE Network, there is no minimum bonding requirement for a validator. Validators have an option to self delegate or accept delegation from other token holders.
To coerce or bribe the validators of a sidechain with this type of a pooled validation model – one that employs random selection and frequent node rotation – a bad actor would have to effectively bribe two thirds of the larger network. To do this with a large number of nodes in the overall network would be exceedingly difficult. SKALE’s network design is based on these core principles and is directly aligned with stopping – if not eliminating – attacks and preserving the integrity of transactions within each chain in the network.strong text