IOHK’s proposal for the ETC community could use Cardano or Bitcoin for prevention of 51% attacks
In the past several weeks, the network has suffered a number of such attacks, which has cast doubt on ETC’s future. Checkpointing would be performed by an unspecified Ouroboros Byzantine Fault Tolerant, or OBFT, checkpointing network and signed on the ETC by ‘trusted members’.
As to the general question of the size of the checkpointing network, they said:
Members of the ETC community have made a number of proposals aimed at solving the existential issues faced by the network — from changing the hashing algorithm to greater regulation of hashpower marketplaces. There is no way of predicting which route the ETC will take, yet, one thing seems to be certain — if something is not done soon, the network whose mantra is “code is law” may ultimately be repealed.
