According to 2ndbtc, "Using Ark will inevitably require ongoing costs to maintain a balance." Is that the case for Erk and hArk, or is it specific to covenantless Ark?

mtk4000

As a TL;DR, we came up with two alternative protocols for Ark, which have the following properties:

offline refresh (server can refresh for a user)

perpetual offline refresh (server can keep refreshing for a user indefinitely)

works best with single input and single output vtxo

devs

> As a TL;DR, we came up with two alternative protocols for Ark, which have the following properties:

> “Erk”:
no user interactivity for rounds
offline refresh (server can refresh for a user)
perpetual offline refresh (server can keep refreshing for a user indefinitely)
works best with single input and single output vtxo
requires CTV + CSFS

> “hArk”:
no user interactivity for rounds
very efficient, also for multiple inputs
no offline refresh possible (so far)
requires CTV only